May weather forecastPlainfield, PA
May
Weather in May
May, the last month of the spring in Plainfield, is a pleasant month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 51.4°F (10.8°C).Temperature
The shift into May is marked by a rise in the average high-temperature, moving from April's moderate 60.3°F (15.7°C) to a pleasant 70.7°F (21.5°C). During May, Plainfield experiences a consistent low-temperature average of 51.4°F (10.8°C).Humidity
February, May and October, with an average relative humidity of 80%, are the most humid months.Rainfall
May is the month with the most rainfall. Rain falls for 17.9 days and accumulates 3.11" (79mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Plainfield aggregates 0.16" (4mm) of snow. In Plainfield, during the entire year, snow falls for 29.2 days and aggregates up to 15.31" (389mm) of snow.Daylight
In Plainfield, the average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 6:07 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:32 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The months with the highest UV index are May through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 6 in May suggests the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Plainfield, PA
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in May
Plainfield, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Plainfield, PA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Plainfield, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in May
Plainfield, PA
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
Plainfield, PA
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in May
Plainfield, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Plainfield, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Plainfield, PA
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Plainfield, PA
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11 days).
Average UV index in May
Plainfield, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Plainfield, PA
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Plainfield, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).





