May weather forecast
Dawson, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Dawson, Iowa, with an average temperature varying between 52.9°F (11.6°C) and 69.6°F (20.9°C).

Temperature

As Dawson, Iowa, transitions into May, a rise in the average high-temperature is observed, moving from a mild 58.8°F (14.9°C) in April to a pleasant 69.6°F (20.9°C). In Dawson, the average low-temperature during the month of May is a fresh 52.9°F (11.6°C).

Humidity

In Dawson, the average relative humidity in May is 75%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 4.17" (106mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Dawson aggregates 0.24" (6mm) of snow. In Dawson, during the entire year, snow falls for 37.2 days and aggregates up to 13.35" (339mm) of snow.

Daylight

In May, the average length of the day in Dawson is 14h and 34min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:15 pm. On the last day of May, in Dawson, sunrise is at 5:44 am and sunset at 8:45 pm CDT.

Sunshine

In Dawson, the average sunshine in May is 8.7h.

UV index

In Dawson, Iowa, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the temperature in May in Dawson?

In May, the average high-temperature and low-temperature are 69.6°F (20.9°C) and 52.9°F (11.6°C) respectively.

What is the average humidity in May in Dawson?

In Dawson, Iowa, the average relative humidity in May is 75%.

What is the rainiest month in Dawson?

The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.17" (106mm) of precipitation.

How many days does it rain in May in Dawson?

In Dawson, Iowa, in May, it is raining for 17.5 days, with typically 4.17" (106mm) of accumulated precipitation.

What is the last month it snows in Dawson?

May is the last month it regularly snows in Dawson, Iowa. During 0.3 snowfall days, in May, Dawson aggregates 0.24" (6mm) of snow.

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

In May, the average day length in Dawson is 14h and 34min.

When are sunrise and sunset in May in Dawson?

On the first day of May in Dawson, Iowa, sunrise is at 6:11 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:45 pm CDT.

How long on average sun shines in May in Dawson?

In Dawson, the average sunshine duration in May is 8.7h.

What is the UV index reading in May in Dawson?

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

Average temperature in May
Dawson, IA

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in May: 52.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14°F).

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Average pressure in May
Dawson, IA

Average pressure in May - Dawson, 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
Dawson, IA

Average wind speed in May - Dawson, IA
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Dawson, IA

Average humidity in May - Dawson, IA
  • Average humidity in May: 75%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in May
Dawson, IA

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

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days in May
Dawson, IA

Average rainfall days in May - Dawson, IA
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in May
Dawson, IA

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

The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Dawson, IA

Average snowfall days in May - Dawson, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.8 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
Dawson, IA

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

The month with the longest days is June (Average daylight: 15h and 12min).
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 12min).

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Average sunshine days in May
Dawson, IA

Average sunshine days in May - Dawson, IA
  • Average sunshine days in May: 11.4 days

The months with the most sunshine days are October, November and December (18.9 days).
The month with the least sunshine days is June (10.6 days).

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Average UV index in May
Dawson, IA

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

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

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Average cloud cover in May
Dawson, IA

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

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).

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Average visibility in May
Dawson, IA

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

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

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Dawson, Iowa, USA

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