Climate and monthly weather forecastBasin, MT
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Basin, Montana, with an average temperature fluctuating between 14.5°F (-9.7°C) and 29.7°F (-1.3°C). Basin's average high-temperature in January sits at a still freezing cold 29.7°F (-1.3°C), showing little difference from the previous month. Weather in January »Weather in February
February, the last month of the winter in Basin, is also a subzero cold month, with an average temperature ranging between max 29.3°F (-1.5°C) and min 13.5°F (-10.3°C). With February's advent, Basin sees an average high-temperature of a still freezing cold 29.3°F (-1.5°C), subtly shifted from January's 29.7°F (-1.3°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Basin, Montana, with an average temperature fluctuating between 38.7°F (3.7°C) and 21.6°F (-5.8°C). Basin's March weather shows an increase in high-temperatures, moving from February's subzero cold 29.3°F (-1.5°C) to a cold 38.7°F (3.7°C). Weather in March »Weather in April
April in Basin, Montana, is a chilly spring month, with an average temperature fluctuating between 27°F (-2.8°C) and 46.4°F (8°C). The onset of April marks a slight increase in the average high-temperature, moving from a cold 38.7°F (3.7°C) in March to a frosty 46.4°F (8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Basin, Montana, with an average temperature varying between 58.5°F (14.7°C) and 35.2°F (1.8°C). As Basin enters May, the average high-temperature increases from the a frosty 46.4°F (8°C) of April to a mild 58.5°F (14.7°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Basin, Montana, with an average temperature ranging between max 68.5°F (20.3°C) and min 42.4°F (5.8°C). As Basin transitions into June, the average high-temperature is observed to rise from a moderate 58.5°F (14.7°C) in May to a pleasant 68.5°F (20.3°C). Weather in June »Weather in July
July in Basin, Montana, is a warm summer month, with an average temperature fluctuating between 79.7°F (26.5°C) and 48.4°F (9.1°C). In Basin, the month of July registers the highest temperatures, averaging 79.7°F (26.5°C) at the peak and 48.4°F (9.1°C) at the lowest. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Basin, Montana, with an average temperature fluctuating between 48.6°F (9.2°C) and 77.5°F (25.3°C). August's beginning signals an average high-temperature of a still warm 77.5°F (25.3°C), barely different from July's 79.7°F (26.5°C). Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Basin, Montana, with an average temperature varying between 42.4°F (5.8°C) and 67.5°F (19.7°C). As September commences, the average high-temperature shows a reduction, transitioning from a moderately hot 77.5°F (25.3°C) in August to a refreshing 67.5°F (19.7°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Basin, Montana, with an average temperature ranging between min 31.3°F (-0.4°C) and max 50.9°F (10.5°C). October's arrival signals a distinct temperature shift, dropping from an enjoyable 67.5°F (19.7°C) in September to a cool 50.9°F (10.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Basin, Montana, with an average temperature ranging between min 21.2°F (-6°C) and max 36.9°F (2.7°C). The start of November signals a decrease in the average high-temperature, transitioning from a cool 50.9°F (10.5°C) in October to a cold 36.9°F (2.7°C). Weather in November »Weather in December
December, the first month of the winter in Basin, is also a subzero cold month, with an average temperature varying between 12.6°F (-10.8°C) and 27°F (-2.8°C). December, on average, is the coldest month, registering a high temperature of 27°F (-2.8°C) and a low of 12.6°F (-10.8°C). Weather in December »Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The most humid month is January, with an average relative humidity of 86%.
Throughout the year, there are 133.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.
Months with snowfall are January through June, September through December.
In Basin, Montana, during the entire year, snow falls for 105.8 days and aggregates up to 55.12" (1400mm) of snow.
January and December, with an average of 5.6h of sunshine, are months with the least sunshine.
The month with the most snowfall is February, when snow falls for 18 days and typically aggregates up to 9.72" (247mm) of snow.
The month with the lowest UV index is February, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most rainfall is June, when the rain falls for 16 days and typically aggregates up to 2.68" (68mm) of precipitation.
The month with the longest days is June, with an average of 15h and 42min of daylight.
With average temperatures fluctuating between a high of 79.7°F (26.5°C) and a low of 48.4°F (9.1°C), July stands out as the warmest month.
July and August are months without snowfall.
July has the most sunshine of the year, with an average of 11.7h of sunshine.
With an average maximum UV index of 6, July is the month with the highest UV index.
August is the least humid month, with an average relative humidity of 46%.
December tends to be the coldest month, with temperatures averaging a daily high of 27°F (-2.8°C) and a low of 12.6°F (-10.8°C).
December is the month with the least rainfall. Rain falls for 8.2 days and accumulates 0.79" (20mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 42min of daylight.
Average temperature
Basin, 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 (27°F).
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure
Basin, MT
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Basin, MT
- Average wind speed in January:
6.5mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.4mph - Average wind speed in May:
5.4mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.4mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Basin, MT
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall
Basin, MT
- Average rainfall in January:
0.83" - Average rainfall in February:
1.22" - Average rainfall in March:
1.46" - Average rainfall in April:
2.01" - Average rainfall in May:
2.36" - Average rainfall in June:
2.68"
- Average rainfall in July:
1.02" - Average rainfall in August:
0.91" - Average rainfall in September:
1.14" - Average rainfall in October:
1.06" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days
Basin, MT
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
9.9 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
11 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall
Basin, MT
- Average snowfall in January:
6.57" - Average snowfall in February:
9.72" - Average snowfall in March:
9.53" - Average snowfall in April:
7.8" - Average snowfall in May:
2.64" - Average snowfall in June:
0.31"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days
Basin, MT
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
18 days - Average snowfall days in March:
16.9 days - Average snowfall days in April:
12.3 days - Average snowfall days in May:
4.4 days - Average snowfall days in June:
0.9 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
1.2 days - Average snowfall days in October:
6.5 days - Average snowfall days in November:
12.5 days - Average snowfall days in December:
16.8 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Basin, MT
- Average daylight in January:
9h and 6min - 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:
15h and 0min - Average daylight in June:
15h and 42min
- 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 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 6min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 6min - Average sunshine in May:
10h and 12min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 30min - Average sunshine in September:
9h and 48min - Average sunshine in October:
7h and 0min - 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 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days
Basin, MT
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
8.5 days - Average sunshine days in March:
9.2 days - Average sunshine days in April:
8.9 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
17 days - Average sunshine days in August:
17 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
15 days - Average sunshine days in November:
14.9 days - Average sunshine days in December:
13.7 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index
Basin, MT
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Basin, MT
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Basin, MT
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
