May weather forecast
Earlham, IA

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Weather in May

The last month of the spring, May, is an agreeable month in Earlham, Iowa, with an average temperature ranging between min 52.7°F (11.5°C) and max 69.6°F (20.9°C).

Temperature

The shift from April to May is marked by an increase in the average high-temperature, moving from a moderate 59.5°F (15.3°C) to a pleasant 69.6°F (20.9°C). The nighttime temperature in Earlham, Iowa, dips to a fresh 52.7°F (11.5°C) on average during May.

Humidity

The average relative humidity in May in Earlham is 77%.

Rainfall

In Earlham, during May, the rain falls for 15.4 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 112.7 rainfall days, and 16.06" (408mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Earlham. During 0.2 snowfall days, in May, Earlham aggregates 0.2" (5mm) of snow. Throughout the year, there are 32 snowfall days, and 7.32" (186mm) of snow is accumulated.

Daylight

In Earlham, the average length of the day in May is 14h and 32min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:43 pm CDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

In Earlham, Iowa, 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 rays for the ordinary person.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What are the temperatures in Earlham in May?

In Earlham, in May, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in May in Earlham?

The average relative humidity in May in Earlham, Iowa, is 77%.

How many days does it rain in May in Earlham?

In Earlham, in May, during 15.4 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

What is the last month it snows in Earlham?

May is the last month it regularly snows in Earlham, Iowa. During 0.2 snowfall days, in May, Earlham aggregates 0.2" (5mm) of snow.

How many hours of daylight does Earlham have in May?

The average day length in May is 14h and 32min.

What time are sunrise and sunset in May in Earlham?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 8:14 pm. On the last day of the month, in Earlham, sunrise is at 5:45 am and sunset at 8:43 pm CDT.

How many hours of sunshine does Earlham have in May?

In Earlham, the average sunshine duration in May is 8.6h.

What is the UV index reading in May in Earlham?

In Earlham, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Earlham, IA

Average temperature in May - Earlham, IA
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in May: 52.7°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in May
Earlham, IA

Average pressure in May - Earlham, 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).

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Average wind speed in May
Earlham, IA

Average wind speed in May - Earlham, IA
  • Average wind speed in May: 8.8mph

The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Earlham, IA

Average humidity in May - Earlham, IA
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Earlham, IA

Average rainfall in May - Earlham, IA
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in May
Earlham, IA

Average rainfall days in May - Earlham, IA
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in May
Earlham, IA

Average snowfall in May - Earlham, IA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Earlham, IA

Average snowfall days in May - Earlham, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (8.9 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
Earlham, IA

Average daylight in May / Average sunshine in May - Earlham, 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 12min).

  • Average sunshine in May: 8h and 4min

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 18min).

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Average sunshine days in May
Earlham, IA

Average sunshine days in May - Earlham, IA
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in May
Earlham, IA

Average UV index in May - Earlham, 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).

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Average cloud cover in May
Earlham, IA

Average cloud cover in May - Earlham, IA
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Earlham, IA

Average visibility in May - Earlham, IA
  • Average visibility in May: 6mi

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

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Earlham, Iowa, USA

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