Climate and monthly weather forecastCapitol, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Capitol, Montana, with an average temperature ranging between min 14.4°F (-9.8°C) and max 27.3°F (-2.6°C). In Capitol, Montana, January records the lowest average temperatures, peaking at 27.3°F (-2.6°C) and reaching a low of 14.4°F (-9.8°C). Weather in January »Weather in February
February, the last month of the winter in Capitol, is another freezing cold month, with an average temperature ranging between max 29.1°F (-1.6°C) and min 15.3°F (-9.3°C). The advent of February signifies a minor shift to an average high-temperature of a still freezing cold 29.1°F (-1.6°C), aligning closely with January. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Capitol, Montana, with an average temperature varying between 27°F (-2.8°C) and 42.6°F (5.9°C). The rise of average high-temperatures is seen in March, with an increase from a subzero cold 29.1°F (-1.6°C) in February to a cold 42.6°F (5.9°C). Weather in March »Weather in April
April is a cool spring month in Capitol, Montana, with an average temperature varying between 35.1°F (1.7°C) and 52.9°F (11.6°C). April witnesses an increase in the average high-temperature, moving from a cold 42.6°F (5.9°C) in March to a fresh 52.9°F (11.6°C). Weather in April »Weather in May
May, the last month of the spring in Capitol, is an enjoyable month, with an average temperature varying between 64°F (17.8°C) and 45.9°F (7.7°C). Capitol sees a rise in temperature during May, with average high-temperatures transitioning from a cool 52.9°F (11.6°C) in April to a comfortable 64°F (17.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Capitol, Montana, with an average temperature fluctuating between 55.9°F (13.3°C) and 76.1°F (24.5°C). June's arrival brings a temperature shift, moving from an enjoyable 64°F (17.8°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »Weather in July
July, like June, in Capitol, Montana, is a moderately hot summer month, with an average temperature varying between 85.1°F (29.5°C) and 63.5°F (17.5°C). July, with an average high of 85.1°F (29.5°C) and a low of 63.5°F (17.5°C), signifies the warmest month of the year. In July, the average heat index is calculated to be a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Capitol, Montana, with an average temperature ranging between max 82.9°F (28.3°C) and min 62.2°F (16.8°C). With August's advent, Capitol sees an average high-temperature of a still moderately hot 82.9°F (28.3°C), subtly shifted from July's 85.1°F (29.5°C). Weather in August »Weather in September
September, the first month of the autumn in Capitol, is also an agreeable month, with an average temperature fluctuating between 54.5°F (12.5°C) and 73.2°F (22.9°C). A decrease in the average high-temperature is observed during September, shifting from a moderately hot 82.9°F (28.3°C) in August to a pleasant 73.2°F (22.9°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Capitol, Montana, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 39.6°F (4.2°C). As Capitol welcomes October, the average high-temperature witnesses a distinct drop, moving from a pleasant 73.2°F (22.9°C) in September to a moderate 55.4°F (13°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Capitol, Montana, with an average temperature fluctuating between 42.1°F (5.6°C) and 28.2°F (-2.1°C). As November arrives, Capitol's weather displays a decrease in high-temperatures, transitioning from October's mild 55.4°F (13°C) to a cold 42.1°F (5.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Capitol, Montana, with an average temperature varying between 16°F (-8.9°C) and 27.9°F (-2.3°C). Transition into December marks a drop in the average high-temperature, moving from a wintry 42.1°F (5.6°C) in November to a subzero cold 27.9°F (-2.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Capitol, MT
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure
Capitol, MT
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Capitol, MT
- Average wind speed in January:
11.9mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11.1mph - Average wind speed in April:
11.7mph - Average wind speed in May:
11.1mph - Average wind speed in June:
10.8mph
- Average wind speed in July:
9.8mph - Average wind speed in August:
9.9mph - Average wind speed in September:
10.6mph - Average wind speed in October:
11.9mph - Average wind speed in November:
11.1mph - Average wind speed in December:
11.2mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity
Capitol, MT
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Capitol, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.67" - Average rainfall in March:
1.1" - Average rainfall in April:
1.61" - Average rainfall in May:
2.68" - Average rainfall in June:
2.01"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.3" - Average rainfall in September:
1.02" - Average rainfall in October:
1.14" - Average rainfall in November:
0.51" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days
Capitol, MT
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
9 days - Average rainfall days in October:
6.6 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall
Capitol, MT
- Average snowfall in January:
2.87" - Average snowfall in February:
4.17" - Average snowfall in March:
4.37" - Average snowfall in April:
3.31" - Average snowfall in May:
1.5" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Capitol, MT
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
9.9 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
1.6 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
3.2 days - Average snowfall days in November:
7 days - Average snowfall days in December:
10.9 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Capitol, MT
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 30min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
11h and 24min - Average sunshine in August:
11h and 30min - Average sunshine in September:
10h and 0min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days
Capitol, MT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
17.5 days - Average sunshine days in September:
18.8 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index
Capitol, MT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Capitol, MT
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
Capitol, 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).





