Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The transition to May introduces an increase in the average high-temperature, shifting from a moderate 55.9°F (13.3°C) in April to a comfortable 67.8°F (19.9°C). The nighttime temperature dips to a cool 51.6°F (10.9°C) on average during May.Humidity
In Dumont, the average relative humidity in May is 75%.Rainfall
In Dumont, Iowa, in May, during 19.4 rainfall days, 4.25" (108mm) of precipitation is typically accumulated. Throughout the year, there are 146.2 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Dumont. May is the last month it regularly snows. During 0.2 snowfall days, in May, Dumont aggregates 0.39" (10mm) of snow. In Dumont, during the entire year, snow falls for 56 days and aggregates up to 24.45" (621mm) of snow.Daylight
The average length of the day in May is 14h and 39min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:43 pm CDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May in Dumont?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Dumont have in May?
When is the highest UV index in Dumont?
How high is the UV index in May?
Average temperature in May
Dumont, IA
- Average high temperature in May: 67.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in May: 51.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in May
Dumont, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Dumont, IA
- Average wind speed in May: 9.4mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in May
Dumont, IA
- Average humidity in May: 75%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Dumont, IA
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is June (4.69").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in May
Dumont, IA
- Average rainfall days in May: 19.4 days
The month with the highest number of rainy days is June (20.2 days).
The month with the least rainy days is February (4 days).
Average snowfall in May
Dumont, IA
- Average snowfall in May: 0.39"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dumont, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dumont, 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: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Dumont, IA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in May
Dumont, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Dumont, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in May
Dumont, IA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Dumont, Iowa, USA
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