July weather forecastBig Arm, MT
July
Weather in July
July in Big Arm, Montana, is a moderately hot summer month, with an average temperature varying between 48.9°F (9.4°C) and 79.3°F (26.3°C).Temperature
Big Arm's temperatures peak on average in July, reaching 79.3°F (26.3°C) at their highest and 48.9°F (9.4°C) at their lowest.Humidity
The average relative humidity in July is 52%.Rainfall
July and August are months with the least rain when the rain falls for 7.5 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
In Big Arm, snow does not fall in June through August.Daylight
The average length of the day in July is 15h and 33min.On the first day of July, sunrise is at 5:43 am and sunset at 9:39 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 9:13 pm MDT.
Sunshine
With an average of 11.9h of sunshine, July has the most sunshine of the year.UV index
June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In July, the maximum UV index of 5 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Big Arm, MT
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in July: 48.9°F
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in July
Big Arm, MT
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Big Arm, MT
- Average wind speed in July: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in July
Big Arm, MT
- Average humidity in July: 52%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).
Average rainfall in July
Big Arm, MT
- Average rainfall in July: 0.55"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in July
Big Arm, MT
- Average rainfall days in July: 7.5 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall in July
Big Arm, MT
- Average snowfall in July: 0"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Big Arm, MT
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Big Arm, 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 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in July
Big Arm, MT
- Average sunshine days in July: 21.3 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index in July
Big Arm, MT
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in July
Big Arm, MT
- Average cloud cover in July: 14
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in July
Big Arm, MT
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
