July weather forecastLewiston, MN
July
Weather in July
July, like June, in Lewiston, Minnesota, is a moderately hot summer month, with an average temperature fluctuating between 78.3°F (25.7°C) and 61.3°F (16.3°C).Temperature
In Lewiston, July is the month with the highest recorded average temperatures, measuring a high of 78.3°F (25.7°C) and a low of 61.3°F (16.3°C).Humidity
In July, the average relative humidity is 83%.Rainfall
In July, in Lewiston, the rain falls for 16.4 days. Throughout July, 3.07" (78mm) of precipitation is accumulated. In Lewiston, Minnesota, during the entire year, the rain falls for 122.7 days and collects up to 24.06" (611mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July is 15h and 5min.On the first day of the month, sunrise is at 5:29 am and sunset at 8:54 pm. On the last day of July, in Lewiston, sunrise is at 5:55 am and sunset at 8:32 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 9.6h of sunshine.UV index
With an average maximum UV index of 6, July is the month with the highest UV index in Lewiston. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 during July translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Lewiston, MN
- Average high temperature in July: 78.3°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in July: 61.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in July
Lewiston, MN
- Average pressure in July: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in July
Lewiston, MN
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in July
Lewiston, MN
- Average humidity in July: 83%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in July
Lewiston, MN
- Average rainfall in July: 3.07"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in July
Lewiston, MN
- Average rainfall days in July: 16.4 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in July
Lewiston, MN
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Lewiston, MN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lewiston, MN
- Average daylight in July: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in July: 9h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in July
Lewiston, MN
- Average sunshine days in July: 11.1 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in July
Lewiston, MN
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in July
Lewiston, MN
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in July
Lewiston, MN
- Average visibility in July: 5mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).





