July weather forecastSumner, IA
July
Weather in July
July, like June, in Sumner, Iowa, is another warm summer month, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 79.2°F (26.2°C).Temperature
Sumner's warmest month, July, registers temperatures that range from a high of 79.2°F (26.2°C) to a low of 62.6°F (17°C).Humidity
In Sumner, the average relative humidity in July is 84%.Rainfall
In Sumner, during July, the rain falls for 17.3 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Sumner, during the entire year, the rain falls for 146.8 days and collects up to 30.79" (782mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July is 14h and 58min.On the first day of July, sunrise is at 5:34 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:30 pm CDT.
Sunshine
The months with the most sunshine in Sumner are July and August, with an average of 9.8h of sunshine.UV index
In Sumner, the average daily maximum UV index in July 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 average person.Note: A maximum daily UV index of 5 during July morphs into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sumner, IA
- Average high temperature in July: 79.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.5°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 (11.1°F).
Average pressure in July
Sumner, 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
Sumner, IA
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in July
Sumner, IA
- Average humidity in July: 84%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Sumner, IA
- Average rainfall in July: 3.07"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in July
Sumner, IA
- Average rainfall days in July: 17.3 days
The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in July
Sumner, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Sumner, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Sumner, 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 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in July
Sumner, IA
- Average sunshine days in July: 9.8 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in July
Sumner, 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 and December (UV index 1).
Average cloud cover in July
Sumner, IA
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in July
Sumner, 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).
