Climate and monthly weather forecastMarysville, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Marysville, Montana, with temperature in the range of an average high of 28.2°F (-2.1°C) and an average low of 14.7°F (-9.6°C). Marysville's January reports an average high-temperature of a still freezing cold 28.2°F (-2.1°C), exhibiting a minor difference from December. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Marysville, Montana, with an average temperature fluctuating between 13.5°F (-10.3°C) and 27.9°F (-2.3°C). The onset of February manifests an average high-temperature of a still freezing cold 27.9°F (-2.3°C), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Marysville, Montana, with an average temperature fluctuating between 21.6°F (-5.8°C) and 37.2°F (2.9°C). A shift in the average high-temperature is noticeable in March, changing from a freezing cold 27.9°F (-2.3°C) in February to a wintry 37.2°F (2.9°C). Weather in March »Weather in April
April is a chilly spring month in Marysville, Montana, with temperature in the range of an average high of 45.7°F (7.6°C) and an average low of 27.7°F (-2.4°C). The onset of April brings a minor temperature shift, with the average high-temperature moving from a wintry 37.2°F (2.9°C) in March to a chilly 45.7°F (7.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Marysville, Montana, with an average temperature varying between 57.2°F (14°C) and 35.2°F (1.8°C). With the onset of May, the average high-temperature slightly shifts from April's chilly 45.7°F (7.6°C) to a refreshing 57.2°F (14°C). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Marysville, Montana, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 67.1°F (19.5°C). June's arrival brings a change in high-temperatures, moving from 57.2°F (14°C) in May to a still refreshing 67.1°F (19.5°C). Weather in June »Weather in July
July is a moderately hot summer month in Marysville, Montana, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 49.1°F (9.5°C). With an average high-temperature of 78.8°F (26°C) and an average low-temperature of 49.1°F (9.5°C), July is the warmest month. Weather in July »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). 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. Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Marysville, Montana, with an average temperature fluctuating between 42.4°F (5.8°C) and 66.2°F (19°C). In Marysville, the average high-temperature in September decreases from a warm 76.6°F (24.8°C) in August to a comfortable 66.2°F (19°C). Weather in September »Weather in October
October, the same as September, in Marysville, Montana, is another chilly autumn month, with an average temperature ranging between min 31.1°F (-0.5°C) and max 49.6°F (9.8°C). With the onset of October, Marysville's weather experiences a distinct temperature drop, moving from a refreshing 66.2°F (19°C) in September to a chilly 49.6°F (9.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Marysville, Montana, with an average temperature fluctuating between 36.5°F (2.5°C) and 21°F (-6.1°C). November is characterized by a reduction in the average high-temperature, from a frosty 49.6°F (9.8°C) in October to a wintry 36.5°F (2.5°C). Weather in November »Weather in December
December, the first month of the winter in Marysville, is also a subzero cold month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 13.1°F (-10.5°C). Temperature records mark December as the coldest month, with highs averaging 26.2°F (-3.2°C) and lows at 13.1°F (-10.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Marysville, MT
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).
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
Marysville, MT
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.16"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
Marysville, MT
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.6mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.1mph - Average wind speed in December:
7.8mph
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
Marysville, MT
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (48%).
Average rainfall
Marysville, MT
- Average rainfall in January:
0.59" - Average rainfall in February:
0.91" - Average rainfall in March:
0.94" - Average rainfall in April:
1.5" - Average rainfall in May:
1.77" - Average rainfall in June:
2.6"
- Average rainfall in July:
0.79" - Average rainfall in August:
0.94" - Average rainfall in September:
0.98" - Average rainfall in October:
0.87" - Average rainfall in November:
0.79" - Average rainfall in December:
0.59"
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
Marysville, MT
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
8.4 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
8.8 days - Average rainfall days in August:
9.2 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
9 days - Average rainfall days in November:
5 days - Average rainfall days in December:
6.7 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
Marysville, MT
- Average snowfall in January:
4.88" - Average snowfall in February:
7.13" - Average snowfall in March:
6.18" - Average snowfall in April:
6.38" - Average snowfall in May:
2.32" - Average snowfall in June:
0.79"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are July and August (0").
Average snowfall days
Marysville, MT
- Average snowfall days in January:
13.5 days - Average snowfall days in February:
15.1 days - Average snowfall days in March:
13.5 days - Average snowfall days in April:
10.8 days - Average snowfall days in May:
4.5 days - Average snowfall days in June:
0.6 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
1.8 days - Average snowfall days in October:
7.2 days - Average snowfall days in November:
12.1 days - Average snowfall days in December:
13.6 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 / Average sunshine
Marysville, MT
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
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 January:
5h and 36min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 48min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 30min - Average sunshine in September:
9h and 42min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 36min
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
Marysville, MT
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
18.8 days - Average sunshine days in August:
18 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
16.5 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
Marysville, MT
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
Marysville, MT
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
Marysville, MT
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).





