Climate and monthly weather forecastBig Sandy, MT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Big Sandy, Montana, is a freezing cold winter month, with an average temperature fluctuating between 18°F (-7.8°C) and 30.6°F (-0.8°C). The advent of January brings an average high-temperature of a still freezing cold 30.6°F (-0.8°C), exhibiting minor difference from the previous month. Weather in January »Weather in February
February, the last month of the winter in Big Sandy, is also a subzero cold month, with an average temperature ranging between max 30.9°F (-0.6°C) and min 17.8°F (-7.9°C). Big Sandy marks the arrival of February with an average high-temperature of a still subzero cold 30.9°F (-0.6°C), hardly different from January's 30.6°F (-0.8°C). Weather in February »Weather in March
March, the first month of the spring in Big Sandy, is a frosty month, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 27.3°F (-2.6°C). The onset of March marks an increase in the average high-temperature, moving from a freezing cold 30.9°F (-0.6°C) in February to a chilly 43.2°F (6.2°C). Weather in March »Weather in April
April in Big Sandy, Montana, is a cool spring month, with an average temperature varying between 54.1°F (12.3°C) and 37°F (2.8°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 43.2°F (6.2°C) to a fresh 54.1°F (12.3°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Big Sandy, Montana, with an average temperature fluctuating between 45.1°F (7.3°C) and 64.6°F (18.1°C). The transition to May introduces an increase in the average high-temperature, shifting from a fresh 54.1°F (12.3°C) in April to an enjoyable 64.6°F (18.1°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Big Sandy, Montana, with an average temperature varying between 73.8°F (23.2°C) and 52.3°F (11.3°C). Big Sandy's June weather brings a rise in high-temperatures, moving from an enjoyable 64.6°F (18.1°C) in May to a warm 73.8°F (23.2°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Big Sandy, Montana, with an average temperature varying between 83.8°F (28.8°C) and 60.3°F (15.7°C). In Big Sandy, the peak average temperatures are observed in July, with a high of 83.8°F (28.8°C) and a low of 60.3°F (15.7°C). The average heat index in July is computed to be 84.2°F (29°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Big Sandy, Montana, with an average temperature fluctuating between 82.6°F (28.1°C) and 61.3°F (16.3°C). With August's arrival, Big Sandy notes an average high-temperature of a still warm 82.6°F (28.1°C), closely following the trend of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Big Sandy, is still a pleasant month, with an average temperature fluctuating between 71.4°F (21.9°C) and 52.9°F (11.6°C). The arrival of September corresponds with a shift in temperature, down from a warm 82.6°F (28.1°C) in August to an agreeable 71.4°F (21.9°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Big Sandy, Montana, with an average temperature fluctuating between 55.6°F (13.1°C) and 39.4°F (4.1°C). A distinct shift in the average high-temperature is signaled in October, moving down from a pleasant 71.4°F (21.9°C) in September to a moderate 55.6°F (13.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Big Sandy, Montana, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 41.9°F (5.5°C). November indicates a shift in the average high-temperature, from October's refreshing 55.6°F (13.1°C) to a wintry 41.9°F (5.5°C). Weather in November »Weather in December
December, the first month of the winter in Big Sandy, is still a freezing cold month, with an average temperature varying between 18.3°F (-7.6°C) and 30.2°F (-1°C). December, with an average high of 30.2°F (-1°C) and a low of 18.3°F (-7.6°C), signifies the coldest month of the year. Weather in December »Updated: Jun 14, 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
January is the most humid month, with an average relative humidity of 79%.
Throughout the year, there are 91 rainfall days, and 6.42" (163mm) of precipitation is accumulated.
Months with snowfall in Big Sandy are January through May, September through December.
The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 2.4" (61mm) of snow.
In Big Sandy, during the entire year, snow falls for 44.2 days and aggregates up to 11.18" (284mm) of snow.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February has the least sunshine of the year, with an average of 5.3h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Big Sandy, Montana, 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 12.2 days and typically aggregates up to 1.22" (31mm) of precipitation.
June through August are months without snowfall.
The month with the longest days is June, with an average of 16h and 0min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
In Big Sandy, the average temperatures in July are the highest, with a peak at 83.8°F (28.8°C) and a low of 60.3°F (15.7°C).
July has the most sunshine of the year, with an average of 12h of sunshine.
With an average relative humidity of 38%, August is the least humid month.
Temperature readings reach their annual highs in December, averaging 30.2°F (-1°C) and a minimum average of 18.3°F (-7.6°C).
December is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.
December has the shortest days of the year in Big Sandy, with an average of 8h and 24min of daylight.
Average temperature
Big Sandy, MT
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.2°F).
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).
Average pressure
Big Sandy, MT
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Big Sandy, MT
- Average wind speed in January:
10.5mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.6mph
- Average wind speed in July:
8.7mph - Average wind speed in August:
8.5mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity
Big Sandy, MT
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall
Big Sandy, MT
- Average rainfall in January:
0.35" - Average rainfall in February:
0.39" - Average rainfall in March:
0.35" - Average rainfall in April:
0.63" - Average rainfall in May:
1.02" - Average rainfall in June:
1.22"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.47" - Average rainfall in September:
0.47" - Average rainfall in October:
0.39" - Average rainfall in November:
0.39" - Average rainfall in December:
0.28"
The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.28").
Average rainfall days
Big Sandy, MT
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
4.2 days - Average rainfall days in March:
8 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
12.5 days - Average rainfall days in June:
12.2 days
- Average rainfall days in July:
7.9 days - Average rainfall days in August:
6.8 days - Average rainfall days in September:
6.6 days - Average rainfall days in October:
7.6 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.5 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall
Big Sandy, MT
- Average snowfall in January:
2.4" - Average snowfall in February:
2.36" - Average snowfall in March:
1.22" - Average snowfall in April:
0.94" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Big Sandy, MT
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
8.5 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
0.3 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:
0.5 days - Average snowfall days in October:
1.8 days - Average snowfall days in November:
5.7 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Big Sandy, 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 18min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 12min - Average daylight in December:
8h and 24min
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 24min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 18min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 18min - Average sunshine in May:
10h and 12min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 30min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days
Big Sandy, MT
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
17 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
17.7 days - Average sunshine days in August:
19.9 days - Average sunshine days in September:
21.5 days - Average sunshine days in October:
20.4 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is June (14.6 days).
Average UV index
Big Sandy, MT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Big Sandy, MT
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility
Big Sandy, 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).
