May weather forecastPlainfield, IA
May
Weather in May
The last month of the spring, May, is a comfortable month in Plainfield, Iowa, with an average temperature varying between 50.5°F (10.3°C) and 67.3°F (19.6°C).Temperature
In Plainfield, the onset of May comes with an increased average high-temperature, moving from April's cool 55.2°F (12.9°C) to a refreshing 67.3°F (19.6°C). In Plainfield, the expected average low-temperature for May is a cool 50.5°F (10.3°C).Humidity
The average relative humidity in May is 77%.Rainfall
In Plainfield, in May, during 17.4 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. In Plainfield, during the entire year, the rain falls for 127.3 days and collects up to 26.61" (676mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Plainfield aggregates 0.35" (9mm) of snow. In Plainfield, during the entire year, snow falls for 46.8 days and aggregates up to 19.76" (502mm) of snow.Daylight
The average length of the day in May in Plainfield is 14h and 40min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:41 pm CDT.
Sunshine
In May, the average sunshine in Plainfield is 8.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Plainfield, IA
- Average high temperature in May: 67.3°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in May
Plainfield, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Plainfield, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Plainfield, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Plainfield, IA
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Plainfield, IA
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in May
Plainfield, IA
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Plainfield, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (12.5 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, IA
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Plainfield, IA
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in May
Plainfield, IA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Plainfield, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Plainfield, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
