Climate and monthly weather forecastSun Prairie, MT
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Sun Prairie, Montana, with an average temperature fluctuating between 19.2°F (-7.1°C) and 31.8°F (-0.1°C). Sun Prairie, Montana, registers an average high-temperature of a still subzero cold 31.8°F (-0.1°C) with the arrival of January, showing minor deviation from the preceding month. Weather in January »Weather in February
February, the last month of the winter in Sun Prairie, is also a subzero cold month, with temperature in the range of an average low of 18.3°F (-7.6°C) and an average high of 31.6°F (-0.2°C). February welcomes an average high-temperature of a still subzero cold 31.6°F (-0.2°C), not much different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Sun Prairie, Montana, with an average temperature fluctuating between 43.2°F (6.2°C) and 27°F (-2.8°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a subzero cold 31.6°F (-0.2°C) in February to a frosty 43.2°F (6.2°C). Weather in March »Weather in April
April in Sun Prairie, Montana, is a fresh spring month, with an average temperature fluctuating between 34.5°F (1.4°C) and 52.3°F (11.3°C). April comes with an increase, with the average high-temperature moving from a frosty 43.2°F (6.2°C) in March to a fresh 52.3°F (11.3°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Sun Prairie, Montana, with an average temperature fluctuating between 62.8°F (17.1°C) and 42.4°F (5.8°C). May brings an increase in the average high-temperature, progressing from a fresh 52.3°F (11.3°C) in April to a comfortable 62.8°F (17.1°C). Weather in May »Weather in June
June, the first month of the summer in Sun Prairie, is a pleasant month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 72°F (22.2°C). The transition to June introduces an increase in the average high-temperature, shifting from a refreshing 62.8°F (17.1°C) in May to an agreeable 72°F (22.2°C). Weather in June »Weather in July
July in Sun Prairie, Montana, is a moderately hot summer month, with an average temperature varying between 82.9°F (28.3°C) and 56.3°F (13.5°C). July, with its high-temperature average of 82.9°F (28.3°C) and a low-temperature average of 56.3°F (13.5°C), is the warmest month. In July, the heat index is evaluated at 82.4°F (28°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Sun Prairie, Montana, with an average temperature ranging between min 57.6°F (14.2°C) and max 81.5°F (27.5°C). As Sun Prairie steps into August, the average high-temperature is measured at a still moderately hot 81.5°F (27.5°C), displaying minor differences from July's 82.9°F (28.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Sun Prairie, Montana, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 70.7°F (21.5°C). In September, the meteorological conditions alter, with the average high-temperature shifting from a warm 81.5°F (27.5°C) in August to an agreeable 70.7°F (21.5°C). Weather in September »Weather in October
October, like September, in Sun Prairie, Montana, is another fresh autumn month, with an average temperature varying between 54.5°F (12.5°C) and 37.6°F (3.1°C). A clear reduction in the average high-temperature marks the arrival of October, falling from a pleasant 70.7°F (21.5°C) in September to a cool 54.5°F (12.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Sun Prairie, Montana, with an average temperature fluctuating between 27.1°F (-2.7°C) and 40.5°F (4.7°C). A decrease in the average high-temperature is observed during November, shifting from a fresh 54.5°F (12.5°C) in October to an icy 40.5°F (4.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Sun Prairie, Montana, with an average temperature ranging between max 29.8°F (-1.2°C) and min 18.1°F (-7.7°C). December, characterized by an average high temperature of 29.8°F (-1.2°C) and a low temperature of 18.1°F (-7.7°C), is generally the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sun Prairie, MT
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (29.8°F).
The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure
Sun Prairie, MT
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Sun Prairie, MT
- Average wind speed in January:
11.1mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
7.5mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.8mph - Average wind speed in November:
11.2mph - Average wind speed in December:
10.9mph
The windiest month (with the highest average wind speed) is November (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity
Sun Prairie, MT
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Sun Prairie, MT
- Average rainfall in January:
0.59" - Average rainfall in February:
0.75" - Average rainfall in March:
0.87" - Average rainfall in April:
1.54" - Average rainfall in May:
1.65" - Average rainfall in June:
1.97"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.71" - Average rainfall in September:
0.98" - Average rainfall in October:
0.83" - Average rainfall in November:
0.79" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is June (1.97").
The driest months (with the least rainfall) are January and July (0.59").
Average rainfall days
Sun Prairie, MT
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
7.9 days - Average rainfall days in August:
8.3 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is November (4.4 days).
Average snowfall
Sun Prairie, MT
- Average snowfall in January:
4.25" - Average snowfall in February:
5.28" - Average snowfall in March:
4.17" - Average snowfall in April:
4.53" - Average snowfall in May:
0.91" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Sun Prairie, MT
- Average snowfall days in January:
11 days - Average snowfall days in February:
12.6 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
6.3 days - Average snowfall days in May:
1.2 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.7 days - Average snowfall days in October:
4.1 days - Average snowfall days in November:
8.3 days - Average snowfall days in December:
12.5 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Sun Prairie, MT
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h 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 January:
5h and 30min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 24min - Average sunshine in September:
9h and 42min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days
Sun Prairie, MT
- Average sunshine days in January:
18 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
19.8 days - Average sunshine days in August:
20.1 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (11.6 days).
Average UV index
Sun Prairie, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Sun Prairie, MT
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Sun Prairie, MT
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





