May weather forecast
Polen, IA

Share

Weather in May

The last month of the spring, May, is an agreeable month in Polen, Iowa, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 69.3°F (20.7°C).

Temperature

Polen experiences a temperature shift with the start of May, with average high-temperatures moving from a refreshing 59.7°F (15.4°C) in April to a pleasant 69.3°F (20.7°C). During May, Polen sees a mean low-temperature of 52.7°F (11.5°C).

Humidity

In Polen, the average relative humidity in May is 79%.

Rainfall

In Polen, in May, it is raining for 17.4 days, with typically 3.62" (92mm) of accumulated precipitation. Throughout the year, there are 127.7 rainfall days, and 23.39" (594mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Polen aggregates 0.31" (8mm) of snow. In Polen, during the entire year, snow falls for 32.6 days and aggregates up to 12.01" (305mm) of snow.

Daylight

In Polen, the average length of the day in May is 14h and 29min.
On the first day of May in Polen, 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 Polen, 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 exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
[Resources]

Frequently asked questions

What are the temperatures in Polen in May?

Polen in May has an average high-temperature of 69.3°F (20.7°C) and an average low-temperature of 52.7°F (11.5°C).

What is the average humidity in May in Polen?

The average relative humidity in May in Polen is 79%.

How much does it rain in Polen in May?

In Polen, in May, during 17.4 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

What is the last month it snows in Polen?

May is the last month it regularly snows in Polen, Iowa. During 0.2 snowfall days, in May, Polen aggregates 0.31" (8mm) of snow.

How many hours of daylight does Polen have in May?

The average day length in May is 14h and 29min.

When is the sunrise / sunset in May in Polen?

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.

How many hours of sunshine does Polen have in May?

In May, the average sunshine duration in Polen, Iowa, is 8.3h.

What is the UV index intensity in May in Polen?

The average daily maximum UV index in May in Polen, Iowa, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Polen, IA

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).

[Resources]

Average pressure in May
Polen, IA

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).

[Resources]

Average wind speed in May
Polen, IA

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).

[Resources]

Average humidity in May
Polen, IA

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%).

[Resources]

Average rainfall in May
Polen, IA

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").

[Resources]

Average rainfall days in May
Polen, IA

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).

[Resources]

Average snowfall in May
Polen, IA

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").

[Resources]

Average snowfall days in May
Polen, IA

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).

[Resources]

Average daylight in May /
Average sunshine in May
Polen, IA

Average daylight in May / Average sunshine in May - Polen, IA
  • Average daylight in May: 14h and 3min

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 2min

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).

[Resources]

Average sunshine days in May
Polen, IA

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).

[Resources]

Average UV index in May
Polen, IA

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).

[Resources]

Average cloud cover in May
Polen, IA

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).

[Resources]

Average visibility in May
Polen, IA

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).

[Resources]

Polen, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location