The growing season in Philadelphia typically lasts for 7.2 months (222 days), from around April 1 to around November 9, rarely starting before March 15 or after April 17, and rarely ending before October 23 or after November 25. The amount of rain in May is high with an average of 111mm (4.4in). Average temperatures and precipitation amounts for more than 161 cities in Pennsylvania. In July, the warmest month, the average day time temperature rises to 85.7°F. Pennsylvania averages 3.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other states in the U.S. July is the wettest month in Pennsylvania with 4.3 inches of rain, and the driest month is February with 2.6 inches. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. The earliest sunset is 7:55 PM on May 1 and the latest sunset is 27 minutes later at 8:22 PM on May 31. Average Weather during May in Philadelphia (Pennsylvania), United States of America. The temperature in July averages 24.9 °C | 76.8 °F. Based on weather reports collected during 1985–2015. Get the monthly weather forecast for Pittsburgh, PA, including daily high/low, historical averages, to help you plan ahead. Shortwave radiation includes visible light and ultraviolet radiation. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The average humidity in May is listed below for places in Pennsylvania. We assume no responsibility for any decisions made on the basis of the content presented on this site. The clearest day of the month is May 1, with clear, mostly clear, or partly cloudy conditions 53% of the time. NOAA's 1981-2010 Climate Normals. The figure below presents a compact representation of key lunar data for May 2020. Monthly: 1981-2010 normals The month of May in Philadelphia experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 49% throughout the month. For reference, the year's highest daily chance of a wet day is 37% on July 28, and its lowest chance is 22% on January 28. Philadelphia is located near a large body of water (e.g., ocean, sea, or large lake). The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The highest monthly average temperature in Lebanon for July is 75 degrees; The lowest monthly average temperature in Lebanon for January is 30 degrees; The most monthly precipitation in Lebanon occurs in September with 10.8 inches; The air quality index in Lebanon is 16% better than the national average The estimated value at Philadelphia is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Philadelphia and a given station. The month of May in Philadelphia is reliably fully within the growing season. The climate pleasant around this city in the month of may. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. Copyright © 2020 Current Results Publishing Ltd. Precipitation Averages for Pennsylvania in May. Summers have occasional heat waves bringing temperatures well above 90 °F (32 °C), while winters can have cold snaps bringing temperatures below 0 °F (−18 °C). The tables give daily averages along with highest and lowest relative humidity levels. support@__remove_this_part__weatherspark.com. The thin dotted lines are the corresponding average perceived temperatures. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. StateCollege.com Address: 220 Regent Court, Suite B, State College, PA 16801 Email: [email protected] Phone: (814) 238-3500 Nesquehoning, Pennsylvania - Travel and vacation weather averages, current conditions and forecasts. Monthly averages Gettysburg Longitude: -77.2311, Latitude: 39.8309 Average weather Gettysburg, PA - 17326. The thin dotted line is the corresponding average liquid-equivalent snowfall. The is a great deal of rainfall in North East, even in the driest month. January Record Date Location County ; Maximum Temperature: 85 °F : January 22, 1906 : Freeport : Armstrong : Minimum Temperature -42 °F : January 5, 1904 We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Russell, Pennsylvania - Travel and vacation weather averages, current conditions and forecasts. The Köppen-Geiger climate classification is Dfb. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. Climate. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. Annual Weather Averages Near Allentown. The solar day over the course of May. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Philadelphia. Average Weather in May in Philadelphia Pennsylvania, United States. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. For reference, on February 26, the windiest day of the year, the daily average wind speed is 9.2 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 5.5 miles per hour. You can jump to a separate table for Eastern and Western Pennsylvania. To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The percentage of time spent at various humidity comfort levels, categorized by dew point. July is the warmest month of the year. The shortest day of the month is May 1, with 13 hours, 56 minutes of daylight and the longest day is May 31, with 14 hours, 49 minutes of daylight. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. You can jump to a separate table for Eastern and Western Pennsylvania.. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. January February March April May June July August September October November December; Average Monthly high in °F: 35° 38° 48° 62° 72° 80° 84° 83° 75° 63° 51° See Historical Weather Data for a Location and Date. The average temperature in July is about 70 °F (21 °C) and in January about 28 °F (−2 °C). A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The amount of rain in May is high with an average of 96mm (3.8in). For reference, on July 28, the muggiest day of the year, there are muggy conditions 58% of the time, while on January 24, the least muggy day of the year, there are muggy conditions 0% of the time. Weather data is prone to errors, outages, and other defects. The latest sunrise of the month in Philadelphia is 6:00 AM on May 1 and the earliest sunrise is 26 minutes earlier at 5:34 AM on May 31. For the purposes of this report, the geographical coordinates of Philadelphia are 39.952 deg latitude, -75.164 deg longitude, and 39 ft elevation. CityRating.com offers the average Philadelphia temperature chart that displays the annual and monthly temperatures for Philadelphia and dozens of other cities. This month generally has very pleasant temperatures. July is the hottest month in Philadelphia with an average temperature of 26°C (79°F) and the coldest is January at 2°C (36°F) with the most daily sunshine hours at 10 in July. The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. The climate of Pennsylvania is diverse due to the multitude of geographic features found within the state. The average growing degree days accumulated over the course of May, with 25th to 75th and 10th to 90th percentile bands. Philadelphia's coldest month is January when the average temperature overnight is 25.5°F. In Johnstown, there are 5 comfortable months with high temperatures in the range of 70-85°. Home | Privacy & Cookies | Contact | About. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. The area within 2 miles of Philadelphia is covered by artificial surfaces (92%), within 10 miles by artificial surfaces (90%), and within 50 miles by trees (41%) and artificial surfaces (27%). Tbilisi, Georgia (5,665 miles away) is the far-away foreign place with temperatures most similar to Philadelphia (view comparison). National Climatic Data Center. This report illustrates the typical weather in Philadelphia, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. For reference, on July 20, the hottest day of the year, temperatures in Philadelphia typically range from 70°F to 87°F, while on January 30, the coldest day of the year, they range from 26°F to 40°F. Average Rainfall for Philadelphia Average temperatures for May at cities, towns, parks and lakes throughout Pennsylvania are listed below in degrees Fahrenheit and Celsius. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Figure 1: Observed and projected changes (compared to the 1901–1960 average) in near-surface air temperature for Pennsylvania.Observed data are for 1900–2014. The average daily incident shortwave solar energy in Philadelphia is gradually increasing during May, rising by 0.6 kWh, from 6.0 kWh to 6.6 kWh, over the course of the month. The shaded overlays indicate night and civil twilight. The percentage of time spent in various temperature bands. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. Lower dew points feel drier and higher dew points feel more humid. Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources.. Below are average maximum temperatures at popular destinations in Pennsylvania in May. The average hourly wind speed in Philadelphia is decreasing during May, decreasing from 7.7 miles per hour to 6.6 miles per hour over the course of the month. Over the course of May in Philadelphia, the length of the day is increasing. With about 1in over 5 days, rain may be scarce throughout your stay. The average minimum temperature (usually the minimum temperature is noted during the night) in Philadelphia in May is 10.3°C (50.54°F). The average surface water temperature in Philadelphia is rapidly increasing during May, rising by 9°F, from 52°F to 61°F, over the course of the month. The lowest monthly average temperature in Lititz for January is 31 degrees; The most monthly precipitation in Lititz occurs in June with 5.4 inches; The air quality index in Lititz is 10% better than the national average; The pollution index in Lititz is 119% worse than the national average In may, maximum temperature is 76°F and minimum temperature is 67°F (for an average temperature of 72°F). Climate is the average of weather over time. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Time zones for airports and weather stations are provided by AskGeo.com . Pennsylvania weather in May 2021. Averages are for Lehigh Valley International Airport, which is 4 miles from Allentown. From the start to the end of the month, the length of the day increases by 53 minutes, implying an average daily increase of 1 minute, 46 seconds, and weekly increase of 12 minutes, 23 seconds. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Pennsylvania generally has a humid continental climate characterized by wide fluctuations in seasonal temperatures, with prevailing winds from the west. The monthly daily average temperature in January, the coldest month, is 25.8 °F (−3.4 °C), while the same figure in … Climate in Pennsylvania. Within 50 miles contains only modest variations in elevation (1,250 feet). Use this monthly calendar to view weather averages, such as average temperature 14 days ahead of today, as well as the historical weather patterns over the past year. Average temperature is the most popular factor that people take into consideration when looking for the best city to live in. The number of hours during which the Sun is visible (black line). Straddling two major climate zones, the southeastern corner of Pennsylvania has the warmest climate. . North East climate summary The North East lies on 246m above sea level Generally, it is cold and temperate in North East. This ranked in the warmest third of the 125-year record and was the coldest year since 2014. The average sliding 31-day rainfall during May in Philadelphia is essentially constant, remaining about 3.4 inches throughout, and rarely exceeding 6.0 inches or falling below 1.6 inches. The average accumulated growing degree days in Philadelphia are increasing during May, increasing by 420°F, from 294°F to 714°F, over the course of the month. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. This section reports on the wide-area average surface temperature of that water. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Averages are for Philadelphia International Airport, which is 7 miles from Philadelphia. The average annual temperature in North East is 8.8 °C | … It is the lowest average temperature of the whole year. Average Weather in May in Erie Pennsylvania, United States. The hourly average wind direction in Philadelphia throughout May is predominantly from the west, with a peak proportion of 33% on May 1. A climate chart for your city, indicating the monthly high temperatures and rainfall. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. In central Washington, Wenatchee reported an average May temperature of 66.3 F (19.1 C), 6.5 F (3.6 C) above normal and the warmest May since records began in 1959. The lowest average 31-day accumulation is 3.3 inches on May 6. July is the hottest month for Johnstown with an average high temperature of 84.2°, which ranks it as warmer than most places in Pennsylvania. Daylight saving time is observed in Philadelphia during 2020, but it neither starts nor ends during May, so the entire month is in daylight saving time. Based on preliminary analysis, the average annual temperature for the contiguous U.S. was 52.7°F, 0.7°F above the 20 th century average. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. In January, the average temperature is -0.2 °C | 31.6 °F. Average temperatures for May at cities, towns, parks and lakes throughout Pennsylvania are listed below in degrees Fahrenheit and Celsius. Weather History for Places in Pennsylvania . Station Data. In northeastern Montana, the average May temperature at Glasgow was 62.7 F (17.1 C), 7.6 F (4.2 C) … In July, the warmest month, the average day time temperature rises to 85.5°F. Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. Within 10 miles also contains only modest variations in elevation (443 feet). MERRA-2 Modern-Era Retrospective Analysis. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. With a perfect weather, may is … The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. Daily high temperatures increase by 8°F, from 70°F to 78°F, rarely falling below 58°F or exceeding 88°F. The wettest month is July with an average of 114mm of rain. In Philadelphia, the chance of a wet day over the course of May is increasing, starting the month at 29% and ending it at 35%. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. Scranton, PA daily average and extreme temperature range for May. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. Annual Weather Averages Near Philadelphia. The stations contributing to this reconstruction are: Philadelphia International Airport (50%, 10 kilometers, southwest); Wings Field (18%, 19 kilometers, northwest); North Philadelphia Airport (20%, 19 kilometers, northeast); and South Jersey Regional Airport (12%, 28 kilometers, east). In this report, we use a base of 50°F and a cap of 86°F. The black line is the percentage chance that a given day is within the growing season. For each station, the records are corrected for the elevation difference between that station and Philadelphia according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. The average minimum temperature (usually the minimum temperature is noted during the night) in Lancaster in May is 11.0°C (51.8°F). The shaded overlays indicate night and civil twilight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Philadelphia average temperature. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Based on weather reports collected during 1985–2015. The topography within 2 miles of Philadelphia contains only modest variations in elevation, with a maximum elevation change of 105 feet and an average elevation above sea level of 37 feet. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. This month generally has very pleasant temperatures. In Scranton, PA during May the average high temperature is 72.0°F. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The growing season varies from nearly 200 days in the southeast to only 90 days in the north-central part of the state. For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 54%, while on September 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%. The chance that a given day will be muggy in Philadelphia is rapidly increasing during May, rising from 1% to 17% over the course of the month. Philadelphia Weather by month // weather averages The hottest day on record was May 31, 2006 when the temperature hit 93.0°F. For reference, on June 20, the longest day of the year, the Sun rises at 5:32 AM and sets 15 hours, 1 minute later, at 8:32 PM, while on December 21, the shortest day of the year, it rises at 7:19 AM and sets 9 hours, 20 minutes later, at 4:39 PM. The average hourly temperature, color coded into bands. Average Weather during May in Lancaster (Pennsylvania), United States of America. Daily low temperatures increase by 10°F, from 50°F to 60°F, rarely falling below 42°F or exceeding 68°F. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . Select a destination to see more weather parameters. Harrisburg's coldest month is January when the average temperature overnight is 23.1°F. Decisions made on the basis of the content presented on this site to the multitude of geographic found. To our estimation of the maximum amount of moisture in the month of May Philadelphia... In North East about 70 °F ( −2 °C ) 200 days in the range of.... Indicate key Moon phases the wide-area hourly average wind vector ( speed and direction ) 10... And vacation weather averages the hottest day on record was May 31, 2006 when temperature. 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