August weather forecastSaint Regis, MT
August
Weather in August
The last month of the summer, August, is another warm month in Saint Regis, Montana, with an average temperature fluctuating between 45.7°F (7.6°C) and 78.8°F (26°C).Temperature
The warmest period is usually observed in July and August, with the average high-temperature peaking at 78.8°F (26°C).Humidity
July and August, with an average relative humidity of 53%, are the least humid months.Rainfall
The month with the least rainfall is August, when the rain falls for 5.9 days and typically collects 0.39" (10mm) of precipitation.Snowfall
In Saint Regis, Montana, snow does not fall in June through August.Daylight
In August, the average length of the day in Saint Regis is 14h and 11min.On the first day of the month, sunrise is at 6:20 am and sunset at 9:13 pm. On the last day of August, sunrise is at 6:59 am and sunset at 8:21 pm MDT.
Sunshine
The average sunshine in August is 11.6h.UV index
The average daily maximum UV index in August in Saint Regis is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Regis, MT
- Average high temperature in August: 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 August: 45.7°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 August
Saint Regis, MT
- Average pressure in August: 29.94"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 August
Saint Regis, MT
- Average wind speed in August: 4.1mph
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 August
Saint Regis, MT
- Average humidity in August: 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 August
Saint Regis, MT
- Average rainfall in August: 0.39"
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 August
Saint Regis, MT
- Average rainfall days in August: 5.9 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 August
Saint Regis, MT
- Average snowfall in August: 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 August
Saint Regis, MT
- Average snowfall days in August: 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 August /
Average sunshine in August
Saint Regis, MT
- Average daylight in August: 14h and 12min
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 August: 11h and 36min
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 August
Saint Regis, MT
- Average sunshine days in August: 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 August
Saint Regis, MT
- Average UV index in August: 4
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 August
Saint Regis, MT
- Average cloud cover in August: 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 August
Saint Regis, MT
- Average visibility in August: 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).
