May weather forecast
Keokuk, IA

Weather in May

May, the last month of the spring, in Keokuk, is a pleasant month, with average temperature fluctuating between 55°F (12.8°C) and 71.6°F (22°C).

Temperature

In Keokuk, the average high-temperature rises, from an enjoyable 62.2°F (16.8°C) in April, to a pleasant 71.6°F (22°C). In Keokuk, the average low-temperature is 55°F (12.8°C).

Humidity

In Keokuk, the average relative humidity is 80%.

Rainfall

The month with the most rainfall is May when the rain falls for 17.3 days and typically aggregates up to 3.9" (99mm) of precipitation.

Snowfall

May through September are months without snowfall in Keokuk.

Daylight

In May, the average length of the day in Keokuk is 14.4h.

Sunshine

In May, the average sunshine in Keokuk is 9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in May in Keokuk?

In Keokuk, Iowa, the average relative humidity in May is 80%.

What is the rainiest month in Keokuk?

May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.9" (99mm) of precipitation.

How much does it rain in Keokuk in May?

In Keokuk, Iowa, in May, it is raining for 17.3 days, with typically 3.9" (99mm) of accumulated precipitation.

When it does not snow in Keokuk?

In Keokuk snow does not fall in May through September.

Does it snow in Keokuk in May?

In May, in Keokuk, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Keokuk?

The average length of the day in May in Keokuk, Iowa, is 14.4h.

How many hours of sunshine does Keokuk have in May?

In Keokuk, Iowa, the average sunshine in May is 9h.

What is the UV index intensity in May in Keokuk?

In Keokuk, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Keokuk, IA

Average temperature in May - Keokuk, IA
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in May
Keokuk, IA

Average pressure in May - Keokuk, IA
  • Average pressure in May: 29.94"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in May
Keokuk, IA

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in May
Keokuk, IA

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

Months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Keokuk, IA

Average rainfall in May - Keokuk, IA
  • Average rainfall in May: 3.9"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in May
Keokuk, IA

Average rainfall days in May - Keokuk, IA
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in May
Keokuk, IA

Average snowfall in May - Keokuk, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.94").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Keokuk, IA

Average snowfall days in May - Keokuk, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (9.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Keokuk, IA
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in May
Keokuk, IA

Average sunshine days in May - Keokuk, IA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in May
Keokuk, IA

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Keokuk, IA

Average cloud cover in May - Keokuk, IA
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 53).
Months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in May
Keokuk, IA

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

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

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