Climate and monthly weather forecastValleytown, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Valleytown, Montana, with an average temperature ranging between min 10.8°F (-11.8°C) and max 24.6°F (-4.1°C). The commencement of January introduces an average high-temperature of a still freezing cold 24.6°F (-4.1°C), closely mirroring the preceding month. Weather in January »Weather in February
February, the last month of the winter in Valleytown, is another freezing cold month, with temperature in the range of an average high of 24.4°F (-4.2°C) and an average low of 10°F (-12.2°C). February is the month that records the lowest temperatures, with averages ranging from a high of 24.4°F (-4.2°C) to a low of 10°F (-12.2°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Valleytown, Montana, with an average temperature fluctuating between 24.3°F (-4.3°C) and 38.3°F (3.5°C). March witnesses an increase in the average high-temperature, moving from a subzero cold 24.4°F (-4.2°C) in February to an icy 38.3°F (3.5°C). Weather in March »Weather in April
April in Valleytown, Montana, is a cool spring month, with an average temperature ranging between max 53.1°F (11.7°C) and min 36.1°F (2.3°C). Valleytown's weather in April is characterized by a distinct rise in the average high-temperature, escalating from a cold 38.3°F (3.5°C) in March to a fresh 53.1°F (11.7°C). Weather in April »Weather in May
May, the last month of the spring in Valleytown, is a refreshing month, with an average temperature varying between 65.8°F (18.8°C) and 46.9°F (8.3°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from a cool 53.1°F (11.7°C) to an enjoyable 65.8°F (18.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Valleytown, Montana, with an average temperature varying between 75°F (23.9°C) and 55.4°F (13°C). June signals a shift in the average high-temperature, moving from May's enjoyable 65.8°F (18.8°C) to a moderately hot 75°F (23.9°C). Weather in June »Weather in July
July, like June, in Valleytown, Montana, is a moderately hot summer month, with an average temperature varying between 63.1°F (17.3°C) and 84°F (28.9°C). In Valleytown, the highest average temperatures are observed in July, with a high of 84°F (28.9°C) and a low of 63.1°F (17.3°C). For July, the heat index is computed to be 84.2°F (29°C). Weather in July »Weather in August
August, the last month of the summer in Valleytown, is another warm month, with an average temperature fluctuating between 82.8°F (28.2°C) and 62.1°F (16.7°C). August's weather records an average high-temperature of a still moderately hot 82.8°F (28.2°C), showing little deviation from July. Weather in August »Weather in September
September, the first month of the autumn in Valleytown, is still a pleasant month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.2°F (11.8°C). The start of September signals a decrease in the average high-temperature, transitioning from a moderately hot 82.8°F (28.2°C) in August to an agreeable 71.1°F (21.7°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Valleytown, Montana, with an average temperature varying between 39.4°F (4.1°C) and 54.3°F (12.4°C). Valleytown's weather undergoes a significant change with the arrival of October, as the average high-temperature drops from a pleasant 71.1°F (21.7°C) in September to a fresh 54.3°F (12.4°C). Weather in October »Weather in November
November, the last month of the autumn in Valleytown, is also a wintry month, with an average temperature varying between 25.7°F (-3.5°C) and 38.8°F (3.8°C). As Valleytown steps into November, a marked temperature drop is observed, with the average high-temperature reducing from October's cool 54.3°F (12.4°C) to an icy 38.8°F (3.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Valleytown, Montana, with an average temperature varying between 24.8°F (-4°C) and 12.7°F (-10.7°C). Valleytown's weather in December involves a decrease in the average high-temperature, moving down from November's cold 38.8°F (3.8°C) to a freezing cold 24.8°F (-4°C). Weather in December »Updated: Jul 16, 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
The most humid month is January, with an average relative humidity of 85%.
Throughout the year, in Valleytown, there are 91.8 rainfall days, and 10.63" (270mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, there are 56.9 snowfall days, and 17.95" (456mm) of snow is accumulated.
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
February, with an average high of 24.4°F (-4.2°C) and a low of 10°F (-12.2°C), signifies the coldest month of the year.
The month with the least rainfall is February, when the rain falls for 3.3 days and typically collects 0.43" (11mm) of precipitation.
With an average of 4.6h of sunshine, February has the least sunshine of the year.
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.
The month with the most rainfall is May, when the rain falls for 12.7 days and typically aggregates up to 1.73" (44mm) of precipitation.
In Valleytown, snow does not fall in June through September.
With an average of 16h and 6min of daylight, June has the longest days of the year.
Valleytown reaches its average highest temperatures in July, measuring 84°F (28.9°C) at the peak and 63.1°F (17.3°C) at the lowest.
July has the most sunshine of the year, with an average of 11.7h of sunshine.
July is the month with the highest UV index in Valleytown, with an average maximum UV index of 7.
The least humid month is August, with an average relative humidity of 41%.
The month with the most snowfall is December, when snow falls for 11.8 days and typically aggregates up to 3.43" (87mm) of snow.
The month with the shortest days is December, with an average of 8h and 24min of daylight.
Average temperature
Valleytown, MT
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).
Average pressure
Valleytown, MT
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.83"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed
Valleytown, MT
- Average wind speed in January:
9.2mph - Average wind speed in February:
8.3mph - Average wind speed in March:
9.4mph - Average wind speed in April:
11.3mph - Average wind speed in May:
10.6mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.6mph - Average wind speed in September:
10mph - Average wind speed in October:
10.7mph - Average wind speed in November:
9.4mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).
Average humidity
Valleytown, MT
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Valleytown, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.43" - Average rainfall in March:
0.59" - Average rainfall in April:
0.94" - Average rainfall in May:
1.73" - Average rainfall in June:
1.69"
- Average rainfall in July:
0.91" - Average rainfall in August:
0.91" - Average rainfall in September:
1.1" - Average rainfall in October:
0.71" - Average rainfall in November:
0.59" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days
Valleytown, MT
- Average rainfall days in January:
3.9 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
7.3 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
11.6 days
- Average rainfall days in July:
9.3 days - Average rainfall days in August:
9.2 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
7.3 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Valleytown, MT
- Average snowfall in January:
3.19" - Average snowfall in February:
2.76" - Average snowfall in March:
2.2" - Average snowfall in April:
1.77" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Valleytown, MT
- Average snowfall days in January:
12.3 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
8 days - Average snowfall days in April:
4.2 days - Average snowfall days in May:
0.3 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:
0.1 days - Average snowfall days in October:
2 days - Average snowfall days in November:
6.9 days - Average snowfall days in December:
11.8 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Valleytown, 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:
4h and 54min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 48min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 30min - Average sunshine in September:
9h and 48min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Valleytown, MT
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
16 days - Average sunshine days in April:
15.4 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
16.9 days
- Average sunshine days in July:
19 days - Average sunshine days in August:
19.9 days - Average sunshine days in September:
20.6 days - Average sunshine days in October:
21 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).
Average UV index
Valleytown, MT
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Valleytown, MT
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility
Valleytown, MT
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
