Climate and monthly weather forecastTrego, MT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Trego, Montana, is another subzero cold winter month, with an average temperature ranging between max 27.3°F (-2.6°C) and min 14.2°F (-9.9°C). January's arrival brings an average high-temperature of a still subzero cold 27.3°F (-2.6°C), slightly deviating from December's 25.5°F (-3.6°C). Weather in January »Weather in February
February, the last month of the winter in Trego, is another freezing cold month, with an average temperature varying between 13.8°F (-10.1°C) and 28.8°F (-1.8°C). February reports an average high-temperature of a still subzero cold 28.8°F (-1.8°C), slightly varied from January's 27.3°F (-2.6°C). Weather in February »Weather in March
March, the first month of the spring in Trego, is a wintry month, with an average temperature varying between 36.3°F (2.4°C) and 21.2°F (-6°C). With the onset of March, Trego observes a minor temperature ascent, with the average high-temperature adjusting from February's subzero cold 28.8°F (-1.8°C) to a wintry 36.3°F (2.4°C). Weather in March »Weather in April
April in Trego, Montana, is a frosty spring month, with an average temperature varying between 27°F (-2.8°C) and 46.4°F (8°C). The beginning of April signals a rise in the average high-temperature, moving from an icy 36.3°F (2.4°C) in March to a chilly 46.4°F (8°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Trego, Montana, with an average temperature fluctuating between 59.7°F (15.4°C) and 34.5°F (1.4°C). The average high-temperature increases in May, moving from a chilly 46.4°F (8°C) in April to a mild 59.7°F (15.4°C). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Trego, Montana, with an average temperature varying between 40.5°F (4.7°C) and 66.6°F (19.2°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from a moderate 59.7°F (15.4°C) in May to a still refreshing 66.6°F (19.2°C). Weather in June »Weather in July
July is a moderately hot summer month in Trego, Montana, with an average temperature fluctuating between 44.4°F (6.9°C) and 77.4°F (25.2°C). July, on average, is the warmest month, registering a high temperature of 77.4°F (25.2°C) and a low of 44.4°F (6.9°C). Weather in July »Weather in August
August, the last month of the summer in Trego, is also a moderately hot month, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 77.2°F (25.1°C). August's presence marks an average high-temperature of a still warm 77.2°F (25.1°C), subtly varied from July's 77.4°F (25.2°C). Weather in August »Weather in September
September, the first month of the autumn in Trego, is still a refreshing month, with an average temperature fluctuating between 38.7°F (3.7°C) and 65.8°F (18.8°C). As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a warm 77.2°F (25.1°C) to a refreshing 65.8°F (18.8°C). Weather in September »Weather in October
October, like September, is a frosty autumn month in Trego, Montana, with an average temperature varying between 49.1°F (9.5°C) and 30.6°F (-0.8°C). October signals a clear temperature drop, with average high-temperatures decreasing from September's enjoyable 65.8°F (18.8°C) to a chilly 49.1°F (9.5°C). Weather in October »Weather in November
November, the last month of the autumn in Trego, is also an icy month, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 22.1°F (-5.5°C). The onset of November marks a clear decrease in the average high-temperature, dropping from a frosty 49.1°F (9.5°C) in October to a wintry 34.7°F (1.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Trego, Montana, with an average temperature varying between 13.1°F (-10.5°C) and 25.5°F (-3.6°C). December, with its high-temperature average of 25.5°F (-3.6°C) and a low-temperature average of 13.1°F (-10.5°C), is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Trego, MT
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure
Trego, 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:
29.91"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"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 (29.91"Hg).
Average wind speed
Trego, MT
- Average wind speed in January:
3.5mph - Average wind speed in February:
3.6mph - Average wind speed in March:
4.1mph - Average wind speed in April:
4.3mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.4mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.9mph - Average wind speed in September:
3.8mph - Average wind speed in October:
3.7mph - Average wind speed in November:
3.8mph - Average wind speed in December:
3.4mph
The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity
Trego, MT
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).
Average rainfall
Trego, MT
- Average rainfall in January:
1.46" - Average rainfall in February:
1.42" - Average rainfall in March:
1.85" - Average rainfall in April:
1.38" - Average rainfall in May:
1.57" - Average rainfall in June:
1.46"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.39" - Average rainfall in September:
0.79" - Average rainfall in October:
1.18" - Average rainfall in November:
1.5" - Average rainfall in December:
1.73"
The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days
Trego, MT
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
8 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
17 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
7.4 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
Trego, MT
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Trego, MT
- Average snowfall days in January:
21.2 days - Average snowfall days in February:
20.5 days - Average snowfall days in March:
18.2 days - Average snowfall days in April:
8.2 days - Average snowfall days in May:
1.2 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:
0.4 days - Average snowfall days in October:
3.7 days - Average snowfall days in November:
15.2 days - Average snowfall days in December:
22.1 days
The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Trego, MT
- Average daylight in January:
8h and 48min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 18min - Average daylight in June:
16h and 6min
- Average daylight in July:
15h and 42min - 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 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
3h and 6min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
11h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 24min - Average sunshine in November:
4h and 30min - Average sunshine in December:
3h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Trego, MT
- Average sunshine days in January:
9 days - Average sunshine days in February:
6.5 days - Average sunshine days in March:
6.3 days - Average sunshine days in April:
8.2 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
21 days - Average sunshine days in August:
21.6 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
9.3 days - Average sunshine days in December:
8.5 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).
Average UV index
Trego, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Trego, MT
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Trego, MT
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).





