May weather forecastWilton, IA
May
Weather in May
The last month of the spring, May, is an agreeable month in Wilton, Iowa, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 69.8°F (21°C).Temperature
May brings a temperature change, with average high-temperatures moving from April's refreshing 58.6°F (14.8°C) to an agreeable 69.8°F (21°C). In May, the nighttime temperature in Wilton lowers to an average of 53.2°F (11.8°C).Humidity
In Wilton, the average relative humidity in May is 78%.Rainfall
The month with the most rainfall in Wilton is May, when the rain falls for 17.3 days and typically aggregates up to 4.57" (116mm) of precipitation.Snowfall
In Wilton, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 33min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:32 am and sunset at 8:31 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In Wilton, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wilton, IA
- Average high temperature in May: 69.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in May
Wilton, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Wilton, IA
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Wilton, IA
- Average humidity in May: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Wilton, IA
- Average rainfall in May: 4.57"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in May
Wilton, IA
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in May
Wilton, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Wilton, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wilton, IA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Wilton, IA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Wilton, IA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Wilton, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Wilton, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
