Climate and monthly weather forecastFort Shaw, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Fort Shaw, Montana, with an average temperature ranging between min 18.7°F (-7.4°C) and max 31.3°F (-0.4°C). The arrival of January brings an average high-temperature of a still subzero cold 31.3°F (-0.4°C), subtly diverging from December's 29.5°F (-1.4°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Fort Shaw, Montana, with an average temperature fluctuating between 31.3°F (-0.4°C) and 17.6°F (-8°C). February's onset records an average high-temperature of a still subzero cold 31.3°F (-0.4°C), identical to January. Weather in February »Weather in March
March, the first month of the spring in Fort Shaw, is an icy month, with an average temperature varying between 27°F (-2.8°C) and 42.6°F (5.9°C). As February transitions into March, Fort Shaw sees a rise in the average high-temperature, moving from a freezing cold 31.3°F (-0.4°C) to an icy 42.6°F (5.9°C). Weather in March »Weather in April
April is a cool spring month in Fort Shaw, Montana, with an average temperature varying between 34.3°F (1.3°C) and 51.4°F (10.8°C). With the onset of April, Fort Shaw observes a minor temperature ascent, with the average high-temperature adjusting from March's wintry 42.6°F (5.9°C) to a fresh 51.4°F (10.8°C). Weather in April »Weather in May
May, the last month of the spring in Fort Shaw, is a comfortable month, with an average temperature fluctuating between 41.9°F (5.5°C) and 62.2°F (16.8°C). May's arrival sees a rise in the average high-temperature, jumping from April's cool 51.4°F (10.8°C) to a refreshing 62.2°F (16.8°C). Weather in May »Weather in June
June, the first month of the summer in Fort Shaw, is a pleasant month, with an average temperature varying between 71.2°F (21.8°C) and 48.7°F (9.3°C). Fort Shaw, Montana, in June experiences an increase in the average high-temperature, moving from May's comfortable 62.2°F (16.8°C) to a pleasant 71.2°F (21.8°C). Weather in June »Weather in July
July in Fort Shaw, Montana, is a warm summer month, with an average temperature ranging between min 55.6°F (13.1°C) and max 82.2°F (27.9°C). July registers as the month with the highest average temperatures, reaching 82.2°F (27.9°C) at its peak and 55.6°F (13.1°C) at the lowest. During July, the heat index is appraised at 82.4°F (28°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Fort Shaw, Montana, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 56.7°F (13.7°C). In the transition from July to August, Fort Shaw reports an average high-temperature of a still warm 81.1°F (27.3°C), indicating a close resemblance to the prior month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Fort Shaw, Montana, with an average temperature ranging between min 49.5°F (9.7°C) and max 70.5°F (21.4°C). The commencement of September indicates a shift in the average high-temperature, receding from August's warm 81.1°F (27.3°C) to an agreeable 70.5°F (21.4°C). Weather in September »Weather in October
October, like September, in Fort Shaw, Montana, is another fresh autumn month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 36.7°F (2.6°C). With the onset of October, Fort Shaw's weather experiences a distinct temperature drop, moving from a pleasant 70.5°F (21.4°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 Fort Shaw, Montana, with an average temperature varying between 26.6°F (-3°C) and 40.1°F (4.5°C). Fort Shaw's transition into November marks a considerable drop in the average high-temperature, moving down from a cool 54.5°F (12.5°C) in October to a wintry 40.1°F (4.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Fort Shaw, Montana, with temperature in the range of an average high of 29.5°F (-1.4°C) and an average low of 17.4°F (-8.1°C). In Fort Shaw, the month of December is known for its lowest average temperatures, reaching a high of 29.5°F (-1.4°C) and a low of 17.4°F (-8.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fort Shaw, MT
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (29.5°F).
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).
Average pressure
Fort Shaw, MT
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"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:
29.96"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Fort Shaw, MT
- Average wind speed in January:
10.7mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8.1mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity
Fort Shaw, MT
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Fort Shaw, MT
- Average rainfall in January:
0.63" - Average rainfall in February:
0.91" - Average rainfall in March:
0.91" - Average rainfall in April:
1.61" - Average rainfall in May:
1.69" - Average rainfall in June:
2.05"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.79" - Average rainfall in September:
1.14" - Average rainfall in October:
0.98" - Average rainfall in November:
0.94" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are January and July (0.63").
Average rainfall days
Fort Shaw, MT
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
9 days - Average rainfall days in August:
8.8 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Fort Shaw, MT
- Average snowfall in January:
4.41" - Average snowfall in February:
6.34" - Average snowfall in March:
4.92" - Average snowfall in April:
4.41" - Average snowfall in May:
0.63" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Fort Shaw, MT
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
14.4 days - Average snowfall days in March:
9.9 days - Average snowfall days in April:
6 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 days - Average snowfall days in November:
9.2 days - Average snowfall days in December:
12.4 days
The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Fort Shaw, 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 6min - 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 24min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 30min - Average sunshine in April:
8h and 54min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 24min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days
Fort Shaw, MT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
11.2 days - Average sunshine days in March:
13 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
17.7 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
18.8 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (10.3 days).
Average UV index
Fort Shaw, 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
Fort Shaw, MT
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility
Fort Shaw, 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).





