May weather forecast
Benton, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Benton, Iowa, with temperature in the range of an average low of 53.1°F (11.7°C) and an average high of 69.6°F (20.9°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a mild 60.4°F (15.8°C) in April to an agreeable 69.6°F (20.9°C). During May, Benton experiences an average low-temperature of 53.1°F (11.7°C) at night.

Humidity

The average relative humidity in May is 80%.

Rainfall

In Benton, in May, it is raining for 17.8 days, with typically 3.46" (88mm) of accumulated precipitation. Throughout the year, there are 126.9 rainfall days, and 22.6" (574mm) of precipitation is accumulated.

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, Benton aggregates 0.24" (6mm) of snow. In Benton, Iowa, during the entire year, snow falls for 28.7 days and aggregates up to 11.85" (301mm) of snow.

Daylight

In Benton, the average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:42 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

In Benton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. When the Sun is at its strongest around midday, find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Benton, 69.6°F (20.9°C) is the average high-temperature and 53.1°F (11.7°C) is the average low-temperature during May.

What is the average humidity in May?

The average relative humidity in May is 80%.

How many days does it rain in May?

In May, the rain falls for 17.8 days. Throughout May, 3.46" (88mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Benton aggregates 0.24" (6mm) of snow.

How many hours of daylight does Benton have in May?

In Benton, the average day length in May is 14h and 28min.

What time are sunrise and sunset in May?

In May, on the first day of the month, 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 long on average sun shines in May?

The average sunshine duration in May is 8.5h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Benton, IA

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

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in May
Benton, IA

Average pressure in May - Benton, 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
Benton, IA

Average wind speed in May - Benton, IA
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in May
Benton, IA

Average humidity in May - Benton, IA
  • Average humidity in May: 80%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Benton, IA

Average rainfall in May - Benton, IA
  • Average rainfall in May: 3.46"

The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").

Average rainfall days in May
Benton, IA

Average rainfall days in May - Benton, IA
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in May
Benton, IA

Average snowfall in May - Benton, IA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Benton, IA

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

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 3min

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 36min).

Average sunshine days in May
Benton, IA

Average sunshine days in May - Benton, IA
  • Average sunshine days in May: 10.6 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in May
Benton, IA

Average UV index in May - Benton, 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
Benton, IA

Average cloud cover in May - Benton, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in May
Benton, IA

Average visibility in May - Benton, 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).

Benton, Iowa, USA

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