August weather forecastMarysville, MT
August
Weather in August
August, the last month of the summer in Marysville, is also a moderately hot month, with an average temperature fluctuating between 49.3°F (9.6°C) and 76.6°F (24.8°C).Temperature
As August unfolds, the average high-temperature reaches a still warm 76.6°F (24.8°C), hinting at a slight fluctuation from the previous month. The nighttime average for Marysville in August plummets considerably from its daytime counterpart, resting at a chilly 49.3°F (9.6°C).Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 48%.Rainfall
In Marysville, during August, the rain falls for 9.2 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 106.9 rainfall days, and 13.27" (337mm) of precipitation is accumulated.Snowfall
In Marysville, snow does not fall in July and August.Daylight
In August, the average length of the day is 14h and 8min.On the first day of the month, sunrise is at 6:10 am and sunset at 9:00 pm. On the last day of August, sunrise is at 6:48 am and sunset at 8:09 pm MDT.
Sunshine
The average sunshine in August is 11.5h.UV index
The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during August translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Marysville, MT
- Average high temperature in August: 76.6°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (26.2°F).
- Average low temperature in August: 49.3°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in August
Marysville, MT
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Marysville, MT
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is November (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Marysville, MT
- Average humidity in August: 48%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (48%).
Average rainfall in August
Marysville, MT
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is June (2.6").
The driest months (with the least rainfall) are January and December (0.59").
Average rainfall days in August
Marysville, MT
- Average rainfall days in August: 9.2 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in August
Marysville, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Marysville, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Marysville, MT
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 11h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in August
Marysville, MT
- Average sunshine days in August: 18 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in August
Marysville, MT
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in August
Marysville, MT
- Average cloud cover in August: 16
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in August
Marysville, MT
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
