May weather forecastUniversity Park, IA
May
Weather in May
May, the last month of the spring in University Park, is an agreeable month, with an average temperature varying between 70°F (21.1°C) and 53.1°F (11.7°C).Temperature
The onset of May brings a rise in the average high-temperature, elevating from a moderate 59.5°F (15.3°C) in April to an agreeable 70°F (21.1°C). The temperature lowers to an average of 53.1°F (11.7°C) during May nights.Humidity
In May, the average relative humidity is 80%.Rainfall
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.37" (111mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in University Park. May is the last month it regularly snows in University Park. During 0.2 snowfall days, in May, University Park aggregates 0.12" (3mm) of snow. Throughout the year, in University Park, Iowa, there are 32.1 snowfall days, and 15.28" (388mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 31min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:36 pm CDT.
Sunshine
In May, the average sunshine in University Park, Iowa, is 8.8h.UV index
In University Park, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in May translates into these instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
University Park, IA
- Average high temperature in May: 70°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in May
University Park, 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 (29.89"Hg).
Average wind speed in May
University Park, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in May
University Park, IA
- Average humidity in May: 80%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
University Park, IA
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
University Park, IA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in May
University Park, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
University Park, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
University Park, 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 18min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
University Park, IA
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9 days).
Average UV index in May
University Park, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
University Park, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in May
University Park, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).





