July weather forecastDonnan, IA
July
Weather in July
July, like June, in Donnan, Iowa, is another warm summer month, with an average temperature ranging between max 79°F (26.1°C) and min 62.6°F (17°C).Temperature
The warmest temperatures occur during July, when averages reach a peak of 79°F (26.1°C) and a low of 62.6°F (17°C).Humidity
The average relative humidity in July is 85%.Rainfall
In July, in Donnan, the rain falls for 16.9 days. Throughout July, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 140.2 rainfall days, and 28.7" (729mm) of precipitation is accumulated.Snowfall
In Donnan, snow does not fall in June through September.Daylight
In Donnan, Iowa, the average length of the day in July is 14h and 58min.On the first day of the month, sunrise is at 5:33 am and sunset at 8:50 pm. On the last day of July, sunrise is at 5:58 am and sunset at 8:29 pm CDT.
Sunshine
The months with the most sunshine in Donnan are July and August, with an average of 9.9h of sunshine.UV index
In July, the average daily maximum UV index in Donnan is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in July interprets into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Donnan, IA
- Average high temperature in July: 79°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in July: 62.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in July
Donnan, IA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Donnan, IA
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in July
Donnan, IA
- Average humidity in July: 85%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Donnan, IA
- Average rainfall in July: 2.99"
The wettest month (with the highest rainfall) is June (4.45").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in July
Donnan, IA
- Average rainfall days in July: 16.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in July
Donnan, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Donnan, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Donnan, IA
- Average daylight in July: 15h and 0min
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 July: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in July
Donnan, IA
- Average sunshine days in July: 9.9 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in July
Donnan, IA
- Average UV index in July: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in July
Donnan, IA
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in July
Donnan, IA
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
