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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 Sweet Grass, Montana, is a freezing cold winter month, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 28.9°F (-1.7°C). The average high-temperature is a still freezing cold 28.9°F (-1.7°C) in January, hardly different from the 27.1°F (-2.7°C) recorded in December. Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Sweet Grass, Montana, with an average temperature varying between 15.6°F (-9.1°C) and 28.8°F (-1.8°C). Sweet Grass, Montana, experiences an average high-temperature of a still freezing cold 28.8°F (-1.8°C) with the onset of February, subtly varied from January's 28.9°F (-1.7°C). Weather in February »
Weather in March
March, the first month of the spring in Sweet Grass, is a cold month, with an average temperature fluctuating between 39°F (3.9°C) and 24.8°F (-4°C). March brings a rise in Sweet Grass's average high-temperature, moving from a subzero cold 28.8°F (-1.8°C) in February to an icy 39°F (3.9°C). Weather in March »
Weather in April
April in Sweet Grass, Montana, is a chilly spring month, with an average temperature varying between 49.6°F (9.8°C) and 34°F (1.1°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from an icy 39°F (3.9°C) to a chilly 49.6°F (9.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Sweet Grass, Montana, with an average temperature varying between 60.3°F (15.7°C) and 42.4°F (5.8°C). May brings a rise in Sweet Grass's average high-temperature, moving from a frosty 49.6°F (9.8°C) in April to a moderate 60.3°F (15.7°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Sweet Grass, Montana, with an average temperature ranging between max 69.1°F (20.6°C) and min 48.7°F (9.3°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's mild 60.3°F (15.7°C) to a pleasant 69.1°F (20.6°C). Weather in June »
Weather in July
July in Sweet Grass, Montana, is a moderately hot summer month, with an average temperature varying between 54.5°F (12.5°C) and 78.8°F (26°C). In Sweet Grass, July is the month with the highest recorded average temperatures, measuring a high of 78.8°F (26°C) and a low of 54.5°F (12.5°C). Weather in July »
Weather in August
August, the last month of the summer in Sweet Grass, is also a moderately hot month, with an average temperature fluctuating between 78.1°F (25.6°C) and 55.2°F (12.9°C). The arrival of August sees an average high-temperature of a still moderately hot 78.1°F (25.6°C), hardly diverging from July's 78.8°F (26°C). Weather in August »
Weather in September
September, the first month of the autumn in Sweet Grass, is still a refreshing month, with an average temperature ranging between min 48.4°F (9.1°C) and max 67.6°F (19.8°C). Sweet Grass's September weather comes with a decrease in average high-temperatures, moving from a warm 78.1°F (25.6°C) in August to a comfortable 67.6°F (19.8°C). Weather in September »
Weather in October
October, like September, in Sweet Grass, Montana, is another fresh autumn month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 51.4°F (10.8°C). In Sweet Grass, stepping into October signifies a significant temperature decrement, moving down from September's refreshing 67.6°F (19.8°C) to a cool 51.4°F (10.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a wintry month in Sweet Grass, Montana, with temperature in the range of an average low of 24.4°F (-4.2°C) and an average high of 38.1°F (3.4°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a fresh 51.4°F (10.8°C) in October to a wintry 38.1°F (3.4°C). Weather in November »
Weather in December
December, the first month of the winter in Sweet Grass, is also a subzero cold month, with an average temperature varying between 27.1°F (-2.7°C) and 15.3°F (-9.3°C). Sweet Grass notes the coldest temperatures in December, with a high average of 27.1°F (-2.7°C) and a low of 15.3°F (-9.3°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Sweet Grass?
January is the most humid month, with an average relative humidity of 79%.
How many days does it rain in Sweet Grass?
Throughout the year, there are 70.4 rainfall days, and 8.46" (215mm) of precipitation is accumulated.
When does it snow in Sweet Grass?
January through May, September through December are months with snowfall in Sweet Grass, Montana.
How many days does it snow in Sweet Grass?
Throughout the year, in Sweet Grass, there are 54.3 snowfall days, and 19.49" (495mm) of snow is accumulated.
What is the month with the least sunshine in Sweet Grass?
January and December, with an average of 5.6h of sunshine, are months with the least sunshine.
What are the months with the lowest UV index in Sweet Grass?
The months with the lowest UV index in Sweet Grass, Montana, are January through March, October through December, with an average maximum UV index of 2.
When does it snow the most in Sweet Grass?
The month with the most snowfall in Sweet Grass is February, when snow falls for 9.7 days and typically aggregates up to 3.58" (91mm) of snow.
When is Daylight Saving Time (DST) in Sweet Grass?
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.
What is the rainiest month in Sweet Grass?
June is the month with the most rainfall. Rain falls for 9.3 days and accumulates 1.77" (45mm) of precipitation.
When it does not snow in Sweet Grass?
In Sweet Grass, snow does not fall in June through August.
When are the longest days in Sweet Grass?
The month with the longest days is June, with an average of 16h and 6min of daylight.
What is the hottest time of year in Sweet Grass?
July is Sweet Grass's warmest month, registering average high temperatures of 78.8°F (26°C) and lows of 54.5°F (12.5°C).
What is the driest month in Sweet Grass?
The month with the least rainfall in Sweet Grass is July, when the rain falls for 5.8 days and typically collects 0.31" (8mm) of precipitation.
What month has the most sunshine in Sweet Grass?
The month with the most sunshine in Sweet Grass is July, with an average of 12h of sunshine.
When is the highest UV index in Sweet Grass?
With an average maximum UV index of 6, July is the month with the highest UV index.
What is the least humid month in Sweet Grass?
With an average relative humidity of 43%, August is the least humid month.
What is the coldest month in Sweet Grass?
December, known for its average high temperature of 27.1°F (-2.7°C) and an average low temperature of 15.3°F (-9.3°C), is the coldest month in Sweet Grass, Montana.
What is the month with the shortest days in Sweet Grass?
The month with the shortest days in Sweet Grass, Montana, is December, with an average of 8h and 18min of daylight.
Average temperature
Sweet Grass, MT
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).
Average pressure
Sweet Grass, 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:
29.95"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.05"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 (29.87"Hg).
Average wind speed
Sweet Grass, MT
- Average wind speed in January:
11.8mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.6mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.9mph - Average wind speed in June:
9.9mph
- Average wind speed in July:
8.8mph - Average wind speed in August:
8.8mph - Average wind speed in September:
9.5mph - Average wind speed in October:
10.9mph - Average wind speed in November:
11.4mph - Average wind speed in December:
11.4mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).
Average humidity
Sweet Grass, MT
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).
Average rainfall
Sweet Grass, MT
- Average rainfall in January:
0.35" - Average rainfall in February:
0.47" - Average rainfall in March:
0.55" - Average rainfall in April:
0.94" - Average rainfall in May:
1.3" - Average rainfall in June:
1.77"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.47" - Average rainfall in September:
0.71" - Average rainfall in October:
0.63" - Average rainfall in November:
0.51" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Sweet Grass, MT
- Average rainfall days in January:
3.9 days - Average rainfall days in February:
3.2 days - Average rainfall days in March:
5.1 days - Average rainfall days in April:
8.3 days - Average rainfall days in May:
10.4 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
5.8 days - Average rainfall days in September:
6.2 days - Average rainfall days in October:
6.3 days - Average rainfall days in November:
2.6 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).
Average snowfall
Sweet Grass, MT
- Average snowfall in January:
2.28" - Average snowfall in February:
3.58" - Average snowfall in March:
2.05" - Average snowfall in April:
2.44" - Average snowfall in May:
0.79" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Sweet Grass, MT
- Average snowfall days in January:
8.8 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
7.9 days - Average snowfall days in April:
5 days - Average snowfall days in May:
1.3 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:
0.8 days - Average snowfall days in October:
4 days - Average snowfall days in November:
6.5 days - Average snowfall days in December:
10.2 days
The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Sweet Grass, MT
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 5min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 2min - Average sunshine in May:
10h and 2min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days
Sweet Grass, MT
- Average sunshine days in January:
21.1 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
19.5 days - Average sunshine days in April:
17.4 days - Average sunshine days in May:
17.8 days - Average sunshine days in June:
19.1 days
- Average sunshine days in July:
23.5 days - Average sunshine days in August:
23.3 days - Average sunshine days in September:
22.4 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
21.6 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).
Average UV index
Sweet Grass, 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
Sweet Grass, MT
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility
Sweet Grass, 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).
Sweet Grass, Montana, USA
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