Climate and monthly weather forecastTroy, MT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Troy, Montana, is another subzero cold winter month, with temperature in the range of an average high of 28.8°F (-1.8°C) and an average low of 15.3°F (-9.3°C). Troy signifies an average high-temperature of a still freezing cold 28.8°F (-1.8°C) in January, closely mirroring the 27.1°F (-2.7°C) of December. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Troy, Montana, with an average temperature varying between 15.8°F (-9°C) and 29.7°F (-1.3°C). The transition from January to February sees average high-temperatures adjusting to a still freezing cold 29.7°F (-1.3°C), from a not significantly different 28.8°F (-1.8°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Troy, Montana, with an average temperature fluctuating between 22.6°F (-5.2°C) and 37°F (2.8°C). As Troy welcomes March, the average high-temperature displays a subtle shift, adjusting from a freezing cold 29.7°F (-1.3°C) in February to a cold 37°F (2.8°C). Weather in March »Weather in April
April in Troy, Montana, is a chilly spring month, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 46.2°F (7.9°C). In April, the average high-temperature increases from an icy 37°F (2.8°C) in March to a frosty 46.2°F (7.9°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Troy, Montana, with an average temperature varying between 36.1°F (2.3°C) and 59.5°F (15.3°C). Troy sees an increase in average high-temperatures during May, moving from a chilly 46.2°F (7.9°C) in April to a moderate 59.5°F (15.3°C). Weather in May »Weather in June
June, the first month of the summer in Troy, is a comfortable month, with an average temperature ranging between max 66.2°F (19°C) and min 41.5°F (5.3°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a moderate 59.5°F (15.3°C) to a still refreshing 66.2°F (19°C). Weather in June »Weather in July
July in Troy, Montana, is a moderately hot summer month, with an average temperature ranging between min 46.8°F (8.2°C) and max 77.4°F (25.2°C). The beginning of July signals a rise in the average high-temperature, moving from a comfortable 66.2°F (19°C) in June to a moderately hot 77.4°F (25.2°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Troy, Montana, with an average temperature ranging between max 77.5°F (25.3°C) and min 47.3°F (8.5°C). August, with its high-temperature average of 77.5°F (25.3°C) and a low-temperature average of 47.3°F (8.5°C), is the warmest month. Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Troy, Montana, with an average temperature fluctuating between 39.7°F (4.3°C) and 66°F (18.9°C). Observing a mild shift, the average high-temperature during September reduces from August's warm 77.5°F (25.3°C) to a refreshing 66°F (18.9°C). Weather in September »Weather in October
October, like September, is another chilly autumn month in Troy, Montana, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 49.6°F (9.8°C). Troy sees a considerable decrease in average high-temperatures during October, falling from an enjoyable 66°F (18.9°C) in September to a frosty 49.6°F (9.8°C). Weather in October »Weather in November
November, the last month of the autumn in Troy, is also an icy month, with an average temperature fluctuating between 23°F (-5°C) and 36°F (2.2°C). Welcoming November, Troy observes a shift in the average high-temperature, falling from October's chilly 49.6°F (9.8°C) to a wintry 36°F (2.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Troy, Montana, with an average temperature varying between 15.1°F (-9.4°C) and 27.1°F (-2.7°C). With average high and low temperatures of 27.1°F (-2.7°C) and 15.1°F (-9.4°C) respectively, December is Troy's coldest month. Weather in December »Updated: Jul 15, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the most humid month, with an average relative humidity of 94%.
Throughout the year, there are 138.8 rainfall days, and 18.15" (461mm) of precipitation is accumulated.
January through May, September through December are months with snowfall.
The month with the most snowfall is January, when snow falls for 18.1 days and typically aggregates up to 11.34" (288mm) of snow.
Throughout the year, there are 91.8 snowfall days, and 49.33" (1253mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
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.
In Troy, snow does not fall in June through August.
June has the longest days of the year, with an average of 16h and 0min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
July and August, with an average of 11.6h of sunshine, are months with the most sunshine.
August, having an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 47.3°F (8.5°C), is the warmest month.
The least humid month is August, with an average relative humidity of 53%.
The month with the least rainfall is August, when the rain falls for 5.9 days and typically collects 0.43" (11mm) of precipitation.
Troy records the coldest temperatures in December, averaging a high of 27.1°F (-2.7°C) and a low of 15.1°F (-9.4°C).
December is the month with the most rainfall. Rain falls for 9.6 days and accumulates 2.24" (57mm) of precipitation.
With an average of 8h and 24min of daylight, December has the shortest days of the year.
Average temperature
Troy, MT
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.1°F).
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure
Troy, MT
- Average pressure in January:
30.18"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:
29.92"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:
30.11"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Troy, MT
- Average wind speed in January:
3.6mph - Average wind speed in February:
3.7mph - Average wind speed in March:
4.2mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
3.9mph - Average wind speed in October:
3.8mph - Average wind speed in November:
3.9mph - Average wind speed in December:
3.5mph
The windiest months (with the highest average wind speed) are April and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity
Troy, MT
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (53%).
Average rainfall
Troy, MT
- Average rainfall in January:
2.05" - Average rainfall in February:
1.77" - Average rainfall in March:
2.09" - Average rainfall in April:
1.69" - Average rainfall in May:
1.73" - Average rainfall in June:
1.54"
- Average rainfall in July:
0.55" - Average rainfall in August:
0.43" - Average rainfall in September:
0.91" - Average rainfall in October:
1.57" - Average rainfall in November:
1.57" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is December (2.24").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days
Troy, MT
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
17.1 days - Average rainfall days in April:
17.5 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
7.1 days - Average rainfall days in August:
5.9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
12.8 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is April (17.5 days).
The month with the least rainy days is August (5.9 days).
Average snowfall
Troy, MT
- Average snowfall in January:
11.34" - Average snowfall in February:
10.71" - Average snowfall in March:
6.57" - Average snowfall in April:
2.36" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is January (11.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Troy, MT
- Average snowfall days in January:
18.1 days - Average snowfall days in February:
18.1 days - Average snowfall days in March:
14.3 days - Average snowfall days in April:
5.8 days - Average snowfall days in May:
0.9 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:
2.5 days - Average snowfall days in November:
11.7 days - Average snowfall days in December:
20 days
The month with the highest number of snowfall days is December (20 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Troy, MT
- Average daylight in January:
8h and 54min - 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 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:
3h and 0min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 24min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 24min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
Troy, MT
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
7.4 days - Average sunshine days in March:
7.5 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
22.7 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
19.5 days - Average sunshine days in October:
15.4 days - Average sunshine days in November:
9.8 days - Average sunshine days in December:
8.6 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (7.4 days).
Average UV index
Troy, MT
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Troy, 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
Troy, MT
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
