May weather forecastPolen, IA
May
Weather in May
The last month of the spring, May, is an agreeable month in Polen, Iowa, with an average temperature varying between 52.7°F (11.5°C) and 69.3°F (20.7°C).Temperature
In Polen, the onset of May comes with an increased average high-temperature, moving from April's refreshing 59.7°F (15.4°C) to an agreeable 69.3°F (20.7°C). Polen records an average low-temperature of 52.7°F (11.5°C) throughout the month of May.Humidity
In May, the average relative humidity is 79%.Rainfall
In Polen, in May, it is raining for 17.4 days, with typically 3.62" (92mm) of accumulated precipitation. In Polen, during the entire year, the rain falls for 127.7 days and collects up to 23.39" (594mm) 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, Polen aggregates 0.31" (8mm) of snow. Throughout the year, there are 32.6 snowfall days, and 12.01" (305mm) of snow is accumulated.Daylight
In Polen, the average length of the day in May is 14h and 29min.On the first day of May, sunrise is at 6:14 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:42 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In May, the average daily maximum UV index in Polen is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Polen, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in May
Polen, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Polen, IA
- Average wind speed in May: 8.9mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Polen, IA
- Average humidity in May: 79%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Polen, IA
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in May
Polen, 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 January (3.7 days).
Average snowfall in May
Polen, IA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Polen, IA
- Average snowfall days in May: 0.2 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
Polen, 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 18min
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 24min).
Average sunshine days in May
Polen, IA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
Polen, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Polen, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in May
Polen, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
