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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, like December, is a freezing cold winter month in Simms, Montana, with an average temperature ranging between min 18.7°F (-7.4°C) and max 31.3°F (-0.4°C). January begins with an average high-temperature of a still subzero cold 31.3°F (-0.4°C), reflecting close similarity to the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Simms, is also a subzero cold month, with an average temperature ranging between min 17.6°F (-8°C) and max 31.3°F (-0.4°C). In February, Simms's weather conditions record an average high-temperature of a still subzero cold 31.3°F (-0.4°C), aligned with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Simms, Montana, with an average temperature fluctuating between 42.6°F (5.9°C) and 27°F (-2.8°C). In March, the meteorological conditions change with the average high-temperature moving from a subzero cold 31.3°F (-0.4°C) in February to an icy 42.6°F (5.9°C). Weather in March »
Weather in April
April is a cool spring month in Simms, Montana, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 51.4°F (10.8°C). Simms's transition into April is marked by a minor temperature shift, moving from a wintry 42.6°F (5.9°C) in March to a fresh 51.4°F (10.8°C). Weather in April »
Weather in May
May, the last month of the spring in Simms, is an enjoyable month, with an average temperature fluctuating between 62.2°F (16.8°C) and 41.9°F (5.5°C). Simms in May sees a temperature change, with average high-temperatures moving from a cool 51.4°F (10.8°C) in April to a comfortable 62.2°F (16.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Simms, Montana, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 48.7°F (9.3°C). June brings a temperature increase, with average high-temperatures moving from May's enjoyable 62.2°F (16.8°C) to a pleasant 71.2°F (21.8°C). Weather in June »
Weather in July
July in Simms, Montana, is a moderately hot summer month, with an average temperature ranging between max 82.2°F (27.9°C) and min 55.6°F (13.1°C). In Simms, the average temperatures in July are the highest, with a peak at 82.2°F (27.9°C) and a low of 55.6°F (13.1°C). The heat index value for July is appraised at 82.4°F (28°C). Weather in July »
Weather in August
August, the last month of the summer in Simms, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 56.7°F (13.7°C). Simms sees the arrival of August with an average high-temperature of a still warm 81.1°F (27.3°C), indicating a subtle variation from July. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Simms, Montana, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 49.5°F (9.7°C). The average high-temperature drops in September, from August's warm 81.1°F (27.3°C) to a pleasant 70.5°F (21.4°C). Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Simms, Montana, with an average temperature ranging between max 54.5°F (12.5°C) and min 36.7°F (2.6°C). Simms's weather experiences a significant temperature drop with the arrival of October, falling from a pleasant 70.5°F (21.4°C) in September to a fresh 54.5°F (12.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Simms, is also a wintry month, with an average temperature varying between 40.1°F (4.5°C) and 26.6°F (-3°C). The beginning of November marks a clear shift in the average high-temperature, receding from October's fresh 54.5°F (12.5°C) to a wintry 40.1°F (4.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Simms, Montana, with temperature in the range of an average high of 29.5°F (-1.4°C) and an average low of 17.4°F (-8.1°C). The month of December, characterized by an average high of 29.5°F (-1.4°C) and a low of 17.4°F (-8.1°C), is recognized as the coldest. Weather in December »
Updated: Feb 13, 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
What is the most humid month in Simms?
With an average relative humidity of 78%, January is the most humid month in Simms, Montana.
What is the driest month in Simms?
January and July are months with the least rain in Simms, Montana, when the rain falls for 4.8 days and typically aggregates up to 0.63" (16mm) of rain.
How many days does it rain in Simms?
In Simms, Montana, during the entire year, the rain falls for 112.8 days and collects up to 12.95" (329mm) of precipitation.
When does it snow in Simms?
Months with snowfall in Simms, Montana, are January through May, September through December.
How much does it snow in Simms?
Throughout the year, in Simms, Montana, there are 69.4 snowfall days, and 35.35" (898mm) of snow is accumulated.
What is the month with the least sunshine in Simms?
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.
When is the lowest UV index in Simms?
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
When does it snow the most in Simms?
February is the month with the most snowfall in Simms. Snow falls for 14.4 days and accumulates 6.34" (161mm) of snow.
When is Daylight Saving Time (DST) in Simms?
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 wettest month in Simms?
June is the month with the most rainfall. Rain falls for 13.8 days and accumulates 2.05" (52mm) of precipitation.
When it does not snow in Simms?
June through August are months without snowfall in Simms, Montana.
When are the longest days in Simms?
June has the longest days of the year in Simms, with an average of 15h and 54min of daylight.
What month is the hottest in Simms?
July is the month when Simms's temperatures reach their peak, with averages of 82.2°F (27.9°C) and lows of 55.6°F (13.1°C).
What month has the most sunshine in Simms?
The month with the most sunshine is July, with an average of 11.9h of sunshine.
When is the highest UV index in Simms?
With an average maximum UV index of 6, July is the month with the highest UV index in Simms, Montana.
What is the least humid month in Simms?
The least humid month is August, with an average relative humidity of 41%.
What is the coldest time of year in Simms?
December tends to be the coldest month in Simms, with temperatures averaging a daily high of 29.5°F (-1.4°C) and a low of 17.4°F (-8.1°C).
What is the month with the shortest days in Simms?
December has the shortest days of the year, with an average of 8h and 30min of daylight.
Average temperature
Simms, MT
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (29.5°F).
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).
Average pressure
Simms, MT
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"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:
29.92"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:
30.07"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Simms, MT
- Average wind speed in January:
10.7mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8.1mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity
Simms, MT
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Simms, MT
- Average rainfall in January:
0.63" - Average rainfall in February:
0.91" - Average rainfall in March:
0.91" - Average rainfall in April:
1.61" - Average rainfall in May:
1.69" - Average rainfall in June:
2.05"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.79" - Average rainfall in September:
1.14" - Average rainfall in October:
0.98" - Average rainfall in November:
0.94" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are January and July (0.63").
Average rainfall days
Simms, MT
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
9 days - Average rainfall days in August:
8.8 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Simms, MT
- Average snowfall in January:
4.41" - Average snowfall in February:
6.34" - Average snowfall in March:
4.92" - Average snowfall in April:
4.41" - Average snowfall in May:
0.63" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Simms, MT
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
14.4 days - Average snowfall days in March:
9.9 days - Average snowfall days in April:
6 days - Average snowfall days in May:
1.2 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:
4 days - Average snowfall days in November:
9.2 days - Average snowfall days in December:
12.4 days
The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Simms, MT
- Average daylight in January:
9h and 0min - 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 3min - 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:
5h and 2min - Average sunshine in February:
5h and 3min - Average sunshine in March:
7h and 3min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 3min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days
Simms, MT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
11.2 days - Average sunshine days in March:
13 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
17.7 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
18.8 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (10.3 days).
Average UV index
Simms, 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
Simms, MT
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility
Simms, 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).
Simms, Montana, USA
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