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 arrival of May brings a temperature shift, with the average high-temperature escalating from a refreshing 61.2°F (16.2°C) in April to an agreeable 71.1°F (21.7°C). In the month of May, the nighttime temperature in Big Mound dips to a steady average of 54.1°F (12.3°C).Humidity
The average relative humidity in May in Big Mound is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.2 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Big Mound, the average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:31 pm CDT.
Sunshine
In Big Mound, Iowa, the average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index in Big Mound is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Big Mound?
What is the average humidity in May in Big Mound?
What is the wettest month in Big Mound?
How many days does it rain in May in Big Mound?
When it does not snow in Big Mound?
Does it snow in Big Mound in May?
How many hours of daylight does Big Mound have in May?
What time are sunrise and sunset in May in Big Mound?
How long on average sun shines in May in Big Mound?
What is the UV index intensity in May in Big Mound?
Average temperature in May
Big Mound, IA
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Big Mound, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Big Mound, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in May
Big Mound, IA
- Average humidity in May: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Big Mound, IA
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days in May
Big Mound, IA
- Average rainfall days in May: 19.2 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in May
Big Mound, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Big Mound, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Big Mound, 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 5min
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).
Average sunshine days in May
Big Mound, IA
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in May
Big Mound, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Big Mound, IA
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in May
Big Mound, 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).
Big Mound, Iowa, USA
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