July weather forecastPlains, MT
July
Weather in July
July in Plains, Montana, is a warm summer month, with an average temperature ranging between max 78.8°F (26°C) and min 45.1°F (7.3°C).Temperature
During July and August, Plains experiences its warmest period, with an average high-temperature of 78.8°F (26°C).Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 53%.Rainfall
In July, the rain falls for 6.3 days. Throughout July, 0.43" (11mm) of precipitation is accumulated. In Plains, Montana, during the entire year, the rain falls for 152.1 days and collects up to 22.09" (561mm) of precipitation.Snowfall
In Plains, snow does not fall in June through August.Daylight
The average length of the day in July in Plains is 15h and 30min.On the first day of July, sunrise is at 5:47 am and sunset at 9:40 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 9:14 pm MDT.
Sunshine
July has the most sunshine of the year in Plains, Montana, with an average of 11.8h of sunshine.UV index
The month with the highest UV index in Plains is July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 6 in July transforms into this advice:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Plains, MT
- Average high temperature in July: 78.8°F
The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in July: 45.1°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in July
Plains, MT
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Plains, MT
- Average wind speed in July: 4.4mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in July
Plains, MT
- Average humidity in July: 53%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in July
Plains, MT
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in July
Plains, MT
- Average rainfall days in July: 6.3 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in July
Plains, MT
- Average snowfall in July: 0"
The month with the highest snowfall is February (15.12").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Plains, MT
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (20.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Plains, MT
- Average daylight in July: 15h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 11h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in July
Plains, MT
- Average sunshine days in July: 23.3 days
The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in July
Plains, MT
- 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
Plains, MT
- Average cloud cover in July: 15
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in July
Plains, MT
- Average visibility in July: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).





