May weather forecastGilbert, IA
May
Weather in May
The last month of the spring, May, is an agreeable month in Gilbert, Iowa, with an average temperature varying between 52.5°F (11.4°C) and 69.3°F (20.7°C).Temperature
Gilbert's transition into May brings a rise in the average high-temperature, moving from a mild 57.7°F (14.3°C) in April to a pleasant 69.3°F (20.7°C). During the nights in May, Gilbert observes an average low-temperature of 52.5°F (11.4°C).Humidity
In May, the average relative humidity is 75%.Rainfall
May is the month with the most rainfall. Rain falls for 19.2 days and accumulates 4.49" (114mm) of precipitation.Snowfall
Months with snowfall in Gilbert are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Gilbert aggregates 0.39" (10mm) of snow. Throughout the year, in Gilbert, there are 45.8 snowfall days, and 16.85" (428mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 35min.On the first day of May in Gilbert, sunrise is at 6:09 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:43 pm CDT.
Sunshine
The average sunshine in May in Gilbert, Iowa, is 8.6h.UV index
In Gilbert, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gilbert, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in May: 52.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in May
Gilbert, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Gilbert, 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
Gilbert, IA
- Average humidity in May: 75%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Gilbert, IA
- Average rainfall in May: 4.49"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Gilbert, IA
- Average rainfall days in May: 19.2 days
The months with the highest number of rainy days are May and June (19.2 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in May
Gilbert, IA
- Average snowfall in May: 0.39"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Gilbert, IA
- Average snowfall days in May: 0.3 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
Gilbert, IA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Gilbert, IA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in May
Gilbert, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Gilbert, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in May
Gilbert, 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).





