Climate and monthly weather forecastChoteau, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Choteau, Montana, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 18°F (-7.8°C). The commencement of January notes an average high-temperature of a still subzero cold 30.4°F (-0.9°C), exhibiting little difference from the previous month. Weather in January »Weather in February
February, the last month of the winter in Choteau, is another freezing cold month, with an average temperature fluctuating between 16.3°F (-8.7°C) and 30.2°F (-1°C). The arrival of February coincides with an average high-temperature of a still freezing cold 30.2°F (-1°C), indicating a minimal shift from January's 30.4°F (-0.9°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Choteau, Montana, with an average temperature varying between 25.5°F (-3.6°C) and 40.3°F (4.6°C). In Choteau, the average high-temperature in March increases from a subzero cold 30.2°F (-1°C) in February to an icy 40.3°F (4.6°C). Weather in March »Weather in April
April in Choteau, Montana, is a chilly spring month, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 49.6°F (9.8°C). As Choteau enters April, the average high-temperature increases from the an icy 40.3°F (4.6°C) of March to a chilly 49.6°F (9.8°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Choteau, Montana, with an average temperature ranging between max 60.4°F (15.8°C) and min 41.7°F (5.4°C). As April gives way to May, the average high-temperature displays an increase, moving from a frosty 49.6°F (9.8°C) to a mild 60.4°F (15.8°C). Weather in May »Weather in June
June, the first month of the summer in Choteau, is a pleasant month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 48°F (8.9°C). In Choteau, stepping into June brings a gentle temperature nudge, moving slightly up from May's moderate 60.4°F (15.8°C) to an agreeable 69.1°F (20.6°C). Weather in June »Weather in July
July in Choteau, Montana, is a warm summer month, with an average temperature varying between 54.5°F (12.5°C) and 79.7°F (26.5°C). July, noted for its average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 54.5°F (12.5°C), is considered the warmest month. Weather in July »Weather in August
August, the last month of the summer in Choteau, is also a moderately hot month, with an average temperature ranging between min 55.9°F (13.3°C) and max 79°F (26.1°C). Choteau in August witnesses an average high-temperature of a still warm 79°F (26.1°C), indicating a slight variation from July's 79.7°F (26.5°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Choteau, Montana, with an average temperature varying between 48.6°F (9.2°C) and 68.2°F (20.1°C). In Choteau, the average high-temperature in September drops from a moderately hot 79°F (26.1°C) in August to a pleasant 68.2°F (20.1°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Choteau, Montana, with an average temperature ranging between max 52.3°F (11.3°C) and min 35.8°F (2.1°C). As Choteau steps into October, the average high-temperature decreases significantly from the an agreeable 68.2°F (20.1°C) of September to a cool 52.3°F (11.3°C). Weather in October »Weather in November
November, the last month of the autumn in Choteau, is also a wintry month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 25.3°F (-3.7°C). As October transitions into November, Choteau sees a drop in the average high-temperature, transitioning from a fresh 52.3°F (11.3°C) to a cold 39.2°F (4°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Choteau, Montana, with an average temperature ranging between min 16.2°F (-8.8°C) and max 28.8°F (-1.8°C). In Choteau, the lowest average temperatures are observed in December, with a high of 28.8°F (-1.8°C) and a low of 16.2°F (-8.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Choteau, MT
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure
Choteau, 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:
29.96"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.88"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:
30.06"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 (29.88"Hg).
Average wind speed
Choteau, MT
- Average wind speed in January:
11.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
9mph - Average wind speed in June:
9.1mph
- Average wind speed in July:
8mph - Average wind speed in August:
8mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.2mph - Average wind speed in November:
11.1mph - Average wind speed in December:
10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity
Choteau, MT
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Choteau, MT
- Average rainfall in January:
0.39" - Average rainfall in February:
0.51" - Average rainfall in March:
0.47" - Average rainfall in April:
0.94" - Average rainfall in May:
1.61" - Average rainfall in June:
1.93"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.63" - Average rainfall in September:
0.79" - Average rainfall in October:
0.55" - Average rainfall in November:
0.51" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days
Choteau, MT
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
3.2 days - Average rainfall days in March:
5.3 days - Average rainfall days in April:
8.4 days - Average rainfall days in May:
11.3 days - Average rainfall days in June:
11.1 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
6.1 days - Average rainfall days in October:
4.2 days - Average rainfall days in November:
2.7 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).
Average snowfall
Choteau, MT
- Average snowfall in January:
2.72" - Average snowfall in February:
4.17" - Average snowfall in March:
2.09" - Average snowfall in April:
3.43" - Average snowfall in May:
1.26" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Choteau, MT
- Average snowfall days in January:
8.8 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
7.1 days - Average snowfall days in April:
4.5 days - Average snowfall days in May:
1.1 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:
3.3 days - Average snowfall days in November:
5.1 days - Average snowfall days in December:
8.3 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Choteau, MT
- Average daylight in January:
8h and 54min - 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:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - 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: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
5h and 54min - Average sunshine in February:
6h and 18min - Average sunshine in March:
7h and 48min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
12h and 6min - 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 18min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Choteau, MT
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
20 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
17.1 days
- Average sunshine days in July:
20.8 days - Average sunshine days in August:
20.9 days - Average sunshine days in September:
21 days - Average sunshine days in October:
23.2 days - Average sunshine days in November:
23 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).
Average UV index
Choteau, 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
Choteau, MT
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility
Choteau, 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).





