Climate and monthly weather forecastFallon, MT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Fallon, Montana, with an average temperature ranging between max 25.5°F (-3.6°C) and min 12.6°F (-10.8°C). The coldest time of the year is January, with temperatures averaging a high of 25.5°F (-3.6°C) and a low of 12.6°F (-10.8°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Fallon, Montana, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 26.2°F (-3.2°C). The transition into February shows a subtle variation to a still subzero cold 26.2°F (-3.2°C) from January's 25.5°F (-3.6°C) in the average high-temperature. Weather in February »Weather in March
The first month of the spring, March, is a cold month in Fallon, Montana, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 41.9°F (5.5°C). Fallon's weather in March is characterized by a distinct rise in the average high-temperature, escalating from a freezing cold 26.2°F (-3.2°C) in February to a cold 41.9°F (5.5°C). Weather in March »Weather in April
April is a fresh spring month in Fallon, Montana, with temperature in the range of an average high of 53.4°F (11.9°C) and an average low of 36.7°F (2.6°C). April's arrival sees a rise in the average high-temperature, jumping from March's wintry 41.9°F (5.5°C) to a fresh 53.4°F (11.9°C). Weather in April »Weather in May
May, the last month of the spring in Fallon, is an enjoyable month, with an average temperature ranging between max 64.9°F (18.3°C) and min 46.9°F (8.3°C). In Fallon, the onset of May comes with an increased average high-temperature, moving from April's cool 53.4°F (11.9°C) to a comfortable 64.9°F (18.3°C). Weather in May »Weather in June
June, the first month of the summer in Fallon, is a warm month, with an average temperature ranging between min 56.7°F (13.7°C) and max 76.3°F (24.6°C). Fallon's transition into June is marked by a rise in the average high-temperature, advancing from a refreshing 64.9°F (18.3°C) in May to a warm 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Fallon, Montana, with an average temperature ranging between max 84.7°F (29.3°C) and min 64°F (17.8°C). Fallon's temperature records reveal July as the warmest month, marked by average highs of 84.7°F (29.3°C) and lows of 64°F (17.8°C). For most parts of July, the heat index is evaluated at 84.2°F (29°C). Weather in July »Weather in August
August, the last month of the summer in Fallon, is also a moderately hot month, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 63.1°F (17.3°C). Fallon's average high-temperature in August is a still warm 83.3°F (28.5°C), indicating a subtle variation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Fallon, Montana, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73°F (22.8°C). September is characterized by a reduction in the average high-temperature, from a warm 83.3°F (28.5°C) in August to an agreeable 73°F (22.8°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Fallon, Montana, with an average temperature fluctuating between 40.1°F (4.5°C) and 54.7°F (12.6°C). The arrival of October brings a distinct temperature shift, with the average high-temperature dropping from a pleasant 73°F (22.8°C) in September to a fresh 54.7°F (12.6°C). Weather in October »Weather in November
November, the last month of the autumn in Fallon, is another cold month, with an average temperature varying between 40.5°F (4.7°C) and 27°F (-2.8°C). The onset of November coincides with a reduction in the average high-temperature, falling from a cool 54.7°F (12.6°C) in October to a wintry 40.5°F (4.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Fallon, Montana, with an average temperature varying between 14.2°F (-9.9°C) and 26.2°F (-3.2°C). Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from an icy 40.5°F (4.7°C) to a freezing cold 26.2°F (-3.2°C). Weather in December »Updated: Aug 29, 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
Fallon, Montana, experiences its average lowest temperatures in January, reaching a peak of 25.5°F (-3.6°C) and a minimum of 12.6°F (-10.8°C).
With an average relative humidity of 85%, January is the most humid month.
The month with the least rainfall is January, when the rain falls for 4.4 days and typically collects 0.51" (13mm) of precipitation.
Throughout the year, there are 102.6 rainfall days, and 13.35" (339mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
In Fallon, during the entire year, snow falls for 58.7 days and aggregates up to 17.28" (439mm) of snow.
The month with the most snowfall is February, when snow falls for 12 days and typically aggregates up to 3.62" (92mm) of snow.
The months with the least sunshine are February and December, with an average of 4.9h of sunshine.
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 13.7 days and typically aggregates up to 2.2" (56mm) of precipitation.
June through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 48min of daylight.
July, with its average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 64°F (17.8°C), holds the record as the warmest month in Fallon.
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, with an average maximum UV index of 7.
The least humid month is August, with an average relative humidity of 43%.
The months with the lowest UV index are November and December, with an average maximum UV index of 1.
With an average of 8h and 36min of daylight, December has the shortest days of the year in Fallon, Montana.
Average temperature
Fallon, MT
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Fallon, MT
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.91"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:
30.05"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed
Fallon, MT
- Average wind speed in January:
10.4mph - Average wind speed in February:
9.4mph - Average wind speed in March:
10.2mph - Average wind speed in April:
11.2mph - Average wind speed in May:
10.5mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.6mph - Average wind speed in August:
9.3mph - Average wind speed in September:
10.3mph - Average wind speed in October:
11.1mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity
Fallon, MT
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (43%).
Average rainfall
Fallon, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.59" - Average rainfall in March:
0.59" - Average rainfall in April:
1.3" - Average rainfall in May:
2.2" - Average rainfall in June:
1.81"
- Average rainfall in July:
1.46" - Average rainfall in August:
1.22" - Average rainfall in September:
1.73" - Average rainfall in October:
0.79" - Average rainfall in November:
0.55" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days
Fallon, MT
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
4 days - Average rainfall days in March:
8 days - Average rainfall days in April:
11.7 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
11.1 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
8.2 days - Average rainfall days in November:
5.2 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4 days).
Average snowfall
Fallon, MT
- Average snowfall in January:
2.87" - Average snowfall in February:
3.62" - Average snowfall in March:
2.01" - Average snowfall in April:
2.01" - Average snowfall in May:
0.79" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Fallon, MT
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
12 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
4.3 days - Average snowfall days in May:
1 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 days - Average snowfall days in October:
2.4 days - Average snowfall days in November:
7.2 days - Average snowfall days in December:
11.5 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight / Average sunshine
Fallon, MT
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 36min - Average sunshine in September:
10h and 12min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days
Fallon, MT
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
16.7 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index
Fallon, MT
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover
Fallon, MT
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility
Fallon, 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).
