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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Big Arm, Montana, is another subzero cold winter month, with temperature in the range of an average low of 17.8°F (-7.9°C) and an average high of 29.7°F (-1.3°C). January brings an average high-temperature of a still freezing cold 29.7°F (-1.3°C), showing a slight difference from December's 27.9°F (-2.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Big Arm, Montana, with an average temperature ranging between min 17.4°F (-8.1°C) and max 30.6°F (-0.8°C). The initiation of February records an average high-temperature of a still subzero cold 30.6°F (-0.8°C), displaying a near consistency with the previous month. Weather in February »
Weather in March
March, the first month of the spring in Big Arm, is a cold month, with an average temperature varying between 38.8°F (3.8°C) and 24.3°F (-4.3°C). The beginning of March signals a minor rise in the average high-temperature, moving from a freezing cold 30.6°F (-0.8°C) in February to a cold 38.8°F (3.8°C). Weather in March »
Weather in April
April is a frosty spring month in Big Arm, Montana, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 30.2°F (-1°C). In Big Arm, the onset of April comes with an increased average high-temperature, moving from March's wintry 38.8°F (3.8°C) to a chilly 48.7°F (9.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Big Arm, Montana, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 36.9°F (2.7°C). The arrival of May signals an increase in the average high-temperature, moving from a frosty 48.7°F (9.3°C) in April to a refreshing 60.4°F (15.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Big Arm, Montana, with an average temperature varying between 68°F (20°C) and 43.3°F (6.3°C). With the onset of June, Big Arm's weather sees a minor temperature rise, transitioning from a mild 60.4°F (15.8°C) in May to a pleasant 68°F (20°C). Weather in June »
Weather in July
July is a moderately hot summer month in Big Arm, Montana, with an average temperature fluctuating between 79.3°F (26.3°C) and 48.9°F (9.4°C). July, with an average high of 79.3°F (26.3°C) and a low of 48.9°F (9.4°C), signifies the warmest month of the year. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Big Arm, Montana, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 48.9°F (9.4°C). August's average high-temperature stands at a still warm 78.6°F (25.9°C), showing little deviation from July's 79.3°F (26.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Big Arm, is also an enjoyable month, with an average temperature ranging between max 67.6°F (19.8°C) and min 42.3°F (5.7°C). September suggests a modest reduction in the average high-temperature, shifting from a warm 78.6°F (25.9°C) in August to a comfortable 67.6°F (19.8°C). Weather in September »
Weather in October
October, like September, in Big Arm, Montana, is another fresh autumn month, with an average temperature ranging between min 33.1°F (0.6°C) and max 51.1°F (10.6°C). As Big Arm steps into October, a marked temperature drop is observed, with the average high-temperature reducing from September's refreshing 67.6°F (19.8°C) to a cool 51.1°F (10.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Big Arm, Montana, with an average temperature fluctuating between 24.6°F (-4.1°C) and 37.2°F (2.9°C). Big Arm's average high-temperature decreases in November, falling from a cool 51.1°F (10.6°C) in October to a wintry 37.2°F (2.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Big Arm, Montana, with an average temperature fluctuating between 16.7°F (-8.5°C) and 27.9°F (-2.3°C). December, with an average high of 27.9°F (-2.3°C) and a low of 16.7°F (-8.5°C), signifies the coldest month of the year. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Big Arm?
The most humid month is January, with an average relative humidity of 91%.
How much does it rain in Big Arm?
In Big Arm, Montana, during the entire year, the rain falls for 160.2 days and collects up to 18.11" (460mm) of precipitation.
When does it snow in Big Arm?
Months with snowfall in Big Arm are January through May, September through December.
How many days does it snow in Big Arm?
In Big Arm, Montana, during the entire year, snow falls for 99 days and aggregates up to 47.28" (1201mm) of snow.
What is the month with the least sunshine in Big Arm?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Big Arm?
The months with the lowest UV index in Big Arm, Montana, are January, February, November and December, with an average maximum UV index of 1.
When does it snow the most in Big Arm?
The month with the most snowfall in Big Arm, Montana, is February, when snow falls for 19.2 days and typically aggregates up to 10.28" (261mm) of snow.
When is Daylight Saving Time (DST) in Big Arm?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Big Arm, 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.
What is the rainiest month in Big Arm?
June is the month with the most rainfall in Big Arm. Rain falls for 15.6 days and accumulates 2.2" (56mm) of precipitation.
When it does not snow in Big Arm?
June through August are months without snowfall.
When are the longest days in Big Arm?
With an average of 15h and 54min of daylight, June has the longest days of the year.
What is the month with the highest UV index in Big Arm?
The months with the highest UV index in Big Arm are June and July, with an average maximum UV index of 5.
What are the warmest months in Big Arm?
Big Arm's July weather reaches an average high of 79.3°F (26.3°C) and an average low of 48.9°F (9.4°C), making it the warmest month.
What is the driest month in Big Arm?
The months with the least rainfall in Big Arm, Montana, are July and August Rain falls for 7.5 days and accumulates 0.55" (14mm) of rain.
What month has the most sunshine in Big Arm?
The month with the most sunshine in Big Arm is July, with an average of 11.9h of sunshine.
What is the least humid month in Big Arm?
The least humid month is August, with an average relative humidity of 51%.
What is the coldest month in Big Arm?
The coldest temperatures in Big Arm occur during December, when averages reach a peak of 27.9°F (-2.3°C) and a low of 16.7°F (-8.5°C).
What is the month with the shortest days in Big Arm?
With an average of 8h and 30min of daylight, December has the shortest days of the year in Big Arm, Montana.
Average temperature
Big Arm, MT
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure
Big Arm, MT
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.16"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Big Arm, MT
- Average wind speed in January:
4mph - Average wind speed in February:
4.3mph - Average wind speed in March:
4.5mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.4mph - Average wind speed in June:
4.4mph
- Average wind speed in July:
4mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.3mph - Average wind speed in December:
4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Big Arm, MT
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).
Average rainfall
Big Arm, MT
- Average rainfall in January:
1.69" - Average rainfall in February:
1.73" - Average rainfall in March:
1.89" - Average rainfall in April:
2.05" - Average rainfall in May:
1.69" - Average rainfall in June:
2.2"
- Average rainfall in July:
0.55" - Average rainfall in August:
0.55" - Average rainfall in September:
0.94" - Average rainfall in October:
1.54" - Average rainfall in November:
1.57" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days
Big Arm, MT
- Average rainfall days in January:
12.4 days - Average rainfall days in February:
12.1 days - Average rainfall days in March:
18.8 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
7.5 days - Average rainfall days in August:
7 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
14.5 days - Average rainfall days in December:
12.9 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall
Big Arm, MT
- Average snowfall in January:
10.24" - Average snowfall in February:
10.28" - Average snowfall in March:
6.14" - Average snowfall in April:
3.27" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Big Arm, MT
- Average snowfall days in January:
19.7 days - Average snowfall days in February:
19.2 days - Average snowfall days in March:
14.5 days - Average snowfall days in April:
8.3 days - Average snowfall days in May:
0.7 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:
0.2 days - Average snowfall days in October:
3.4 days - Average snowfall days in November:
13.2 days - Average snowfall days in December:
19.8 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Big Arm, MT
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 3min
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:
4h and 3min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 3min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Big Arm, MT
- Average sunshine days in January:
9.3 days - Average sunshine days in February:
6.5 days - Average sunshine days in March:
6.4 days - Average sunshine days in April:
7.7 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
21.3 days - Average sunshine days in August:
19.9 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index
Big Arm, MT
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Big Arm, MT
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility
Big Arm, MT
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Big Arm, Montana, USA
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