Climate and monthly weather forecastGlen, MT
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Glen, Montana, with an average temperature fluctuating between 28°F (-2.2°C) and 12.2°F (-11°C). Glen's average high-temperature in January sits at a still freezing cold 28°F (-2.2°C), showing little difference from the previous month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Glen, Montana, with an average temperature fluctuating between 12.6°F (-10.8°C) and 28.2°F (-2.1°C). The onset of February marks an average high-temperature of a still freezing cold 28.2°F (-2.1°C), hardly differing from January's 28°F (-2.2°C). Weather in February »Weather in March
March, the first month of the spring in Glen, is an icy month, with an average temperature varying between 36.1°F (2.3°C) and 21.4°F (-5.9°C). Glen, Montana, experiences a minor temperature shift with the start of March, with average high-temperatures moving from a freezing cold 28.2°F (-2.1°C) in February to a wintry 36.1°F (2.3°C). Weather in March »Weather in April
April is a chilly spring month in Glen, Montana, with an average temperature ranging between min 27.9°F (-2.3°C) and max 45.9°F (7.7°C). With the onset of April, Glen experiences a temperature shift, with the average high-temperature moving from a wintry 36.1°F (2.3°C) in March to a frosty 45.9°F (7.7°C). Weather in April »Weather in May
May, the last month of the spring in Glen, is a mild month, with an average temperature fluctuating between 57.2°F (14°C) and 35.6°F (2°C). Glen's weather in May presents a rise in the average high-temperature, moving from a chilly 45.9°F (7.7°C) in April to a refreshing 57.2°F (14°C). Weather in May »Weather in June
June, the first month of the summer in Glen, is a comfortable month, with an average temperature fluctuating between 67.6°F (19.8°C) and 41.9°F (5.5°C). The onset of June marks an increase in the average high-temperature, moving from a moderate 57.2°F (14°C) in May to a still refreshing 67.6°F (19.8°C). Weather in June »Weather in July
July in Glen, Montana, is a warm summer month, with an average temperature fluctuating between 78.4°F (25.8°C) and 47.8°F (8.8°C). Glen's July weather, with an average high temperature of 78.4°F (25.8°C) and an average low temperature of 47.8°F (8.8°C), tends to be the warmest of the year. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Glen, Montana, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 47.3°F (8.5°C). August's beginning signals an average high-temperature of a still moderately hot 76.8°F (24.9°C), barely different from July's 78.4°F (25.8°C). Weather in August »Weather in September
September, the first month of the autumn in Glen, is still a comfortable month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 41.9°F (5.5°C). The arrival of September corresponds with a reduction in the average high-temperature, down from August's warm 76.8°F (24.9°C) to a comfortable 66.7°F (19.3°C). Weather in September »Weather in October
October, the same as September, in Glen, Montana, is another chilly autumn month, with an average temperature ranging between min 31.1°F (-0.5°C) and max 49.8°F (9.9°C). In Glen, the onset of October is marked by a decreased average high-temperature, declining from September's comfortable 66.7°F (19.3°C) to a chilly 49.8°F (9.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Glen, Montana, with an average temperature varying between 36.3°F (2.4°C) and 20.3°F (-6.5°C). November brings a minor decrease, with the average high-temperature reducing from a chilly 49.8°F (9.9°C) in October to an icy 36.3°F (2.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Glen, Montana, with an average temperature varying between 10.6°F (-11.9°C) and 25.7°F (-3.5°C). December stands out as Glen's coldest month, with temperatures ranging between an average high of 25.7°F (-3.5°C) and a low of 10.6°F (-11.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Glen, MT
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (25.7°F).
The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is December (10.6°F).
Average pressure
Glen, MT
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.23"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Glen, MT
- Average wind speed in January:
6.6mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is November (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Glen, MT
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall
Glen, MT
- Average rainfall in January:
0.43" - Average rainfall in February:
0.63" - Average rainfall in March:
0.79" - Average rainfall in April:
1.18" - Average rainfall in May:
1.3" - Average rainfall in June:
1.34"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.59" - Average rainfall in September:
0.67" - Average rainfall in October:
0.67" - Average rainfall in November:
0.51" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is June (1.34").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Glen, MT
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
8 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
7.7 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
8.2 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are November and December (6.2 days).
Average snowfall
Glen, MT
- Average snowfall in January:
3.27" - Average snowfall in February:
4.72" - Average snowfall in March:
3.58" - Average snowfall in April:
3.82" - Average snowfall in May:
1.65" - Average snowfall in June:
0.08"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are July and August (0").
Average snowfall days
Glen, MT
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
13.2 days - Average snowfall days in March:
11.1 days - Average snowfall days in April:
9 days - Average snowfall days in May:
2.4 days - Average snowfall days in June:
0.3 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:
4.5 days - Average snowfall days in November:
8.6 days - Average snowfall days in December:
12 days
The month with the highest number of snowfall days is February (13.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Glen, MT
- Average daylight in January:
9h and 12min - 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:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
6h and 18min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 30min - Average sunshine in April:
10h and 6min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 48min - Average sunshine in September:
9h and 54min - Average sunshine in October:
7h and 30min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days
Glen, MT
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.7 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
18.7 days - Average sunshine days in August:
18 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
17.7 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
18 days
The month with the most sunshine days is July (18.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index
Glen, MT
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Glen, MT
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility
Glen, MT
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





