May weather forecast
Clarksville, IA

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Weather in May

The last month of the spring, May, is a comfortable month in Clarksville, Iowa, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 51.4°F (10.8°C).

Temperature

Clarksville's transition into May sees a rise in the average high-temperature, advancing from a refreshing 56.1°F (13.4°C) in April to a comfortable 67.8°F (19.9°C). In the month of May, an average of 51.4°F (10.8°C) marks the low-temperature.

Humidity

The average relative humidity in May is 77%.

Rainfall

In May, the rain falls for 18.7 days. Throughout May, 4.17" (106mm) of precipitation is accumulated. Throughout the year, there are 138.7 rainfall days, and 28.78" (731mm) 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, Clarksville aggregates 0.2" (5mm) of snow. In Clarksville, during the entire year, snow falls for 43.6 days and aggregates up to 19.25" (489mm) of snow.

Daylight

In Clarksville, the average length of the day in May is 14h and 40min.
On the first day of May, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:41 pm CDT.

Sunshine

In Clarksville, the average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index in Clarksville is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

An average high-temperature, in May, in Clarksville, is 67.8°F (19.9°C) and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May?

In Clarksville, the average relative humidity in May is 77%.

How much does it rain in May?

In Clarksville, in May, during 18.7 rainfall days, 4.17" (106mm) of precipitation is typically accumulated.

What is the last month it snows?

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

What is the average length of the day in May?

In May, the average day length is 14h and 40min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:41 pm CDT.

How many hours of sunshine does Clarksville have in May?

In May, the average sunshine duration is 8.5h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Clarksville, IA

Average temperature in May - Clarksville, IA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

Average pressure in May
Clarksville, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Clarksville, IA

Average wind speed in May - Clarksville, IA
  • Average wind speed in May: 9.2mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in May
Clarksville, IA

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

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Clarksville, IA

Average rainfall in May - Clarksville, IA
  • Average rainfall in May: 4.17"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in May
Clarksville, IA

Average rainfall days in May - Clarksville, IA
  • Average rainfall days in May: 18.7 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in May
Clarksville, IA

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

The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Clarksville, IA

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

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Clarksville, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Clarksville, IA

Average sunshine days in May - Clarksville, IA
  • Average sunshine days in May: 10.3 days

The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in May
Clarksville, IA

Average UV index in May - Clarksville, IA
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Clarksville, IA

Average cloud cover in May - Clarksville, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in May
Clarksville, IA

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

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

Clarksville, Iowa, USA

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