May weather forecast
Fort Atkinson, IA

Weather in May

The last month of the spring, May, is a comfortable month in Fort Atkinson, Iowa, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 65.7°F (18.7°C).

Temperature

In Fort Atkinson, the average high-temperature in May rises from a cool 54°F (12.2°C) in April to a comfortable 65.7°F (18.7°C). In May, in Fort Atkinson, the average low-temperature is 48.7°F (9.3°C).

Humidity

In May, the average relative humidity in Fort Atkinson is 81%.

Rainfall

In May, the rain falls for 20.3 days. Throughout May, 4.06" (103mm) of precipitation is accumulated. In Fort Atkinson, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Fort Atkinson. May is the last month it regularly snows. During 0.4 snowfall days, in May, Fort Atkinson aggregates 0.16" (4mm) of snow. Throughout the year, there are 60.9 snowfall days, and 24.37" (619mm) of snow is accumulated.

Daylight

The average length of the day in May in Fort Atkinson is 14h and 41min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:08 pm. On the last day of May, in Fort Atkinson, sunrise is at 5:31 am and sunset at 8:39 pm CDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in May in Fort Atkinson?

In Fort Atkinson, the average relative humidity in May is 81%.

How many days does it rain in May in Fort Atkinson?

In Fort Atkinson, Iowa, in May, it is raining for 20.3 days, with typically 4.06" (103mm) of accumulated precipitation.

What is the last month it snows in Fort Atkinson?

May is the last month it regularly snows in Fort Atkinson. During 0.4 snowfall days, in May, Fort Atkinson aggregates 0.16" (4mm) of snow.

What is the average length of the day in May in Fort Atkinson?

The average day length in May in Fort Atkinson, Iowa, is 14h and 41min.

What time are sunrise and sunset in May in Fort Atkinson?

On the first day of May in Fort Atkinson, Iowa, sunrise is at 6:00 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:39 pm CDT.

How long on average sun shines in May in Fort Atkinson?

In Fort Atkinson, the average sunshine duration in May is 8.2h.

When is the highest UV index in Fort Atkinson?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Fort Atkinson.

What is the UV index intensity in May in Fort Atkinson?

In Fort Atkinson, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Fort Atkinson, IA

Average temperature in May - Fort Atkinson, IA
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).

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Average pressure in May
Fort Atkinson, IA

Average pressure in May - Fort Atkinson, IA
  • Average pressure in May: 29.94"Hg

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in May
Fort Atkinson, IA

Average wind speed in May - Fort Atkinson, IA
  • Average wind speed in May: 9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in May
Fort Atkinson, IA

Average humidity in May - Fort Atkinson, IA
  • Average humidity in May: 81%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in May
Fort Atkinson, IA

Average rainfall in May - Fort Atkinson, IA
  • Average rainfall in May: 4.06"

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in May
Fort Atkinson, IA

Average rainfall days in May - Fort Atkinson, IA
  • Average rainfall days in May: 20.3 days

The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in May
Fort Atkinson, IA

Average snowfall in May - Fort Atkinson, IA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Fort Atkinson, IA

Average snowfall days in May - Fort Atkinson, IA
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Fort Atkinson, IA

Average daylight in May / Average sunshine in May - Fort Atkinson, IA
  • Average daylight in May: 14h and 41min

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 3min).

  • Average sunshine in May: 8h and 12min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in May
Fort Atkinson, IA

Average sunshine days in May - Fort Atkinson, IA
  • Average sunshine days in May: 8.2 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).

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Average UV index in May
Fort Atkinson, IA

Average UV index in May - Fort Atkinson, IA
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in May
Fort Atkinson, IA

Average cloud cover in May - Fort Atkinson, IA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
Fort Atkinson, IA

Average visibility in May - Fort Atkinson, IA
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).

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