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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a wintry winter month in Roscoe, Montana, with temperature in the range of an average low of 18.7°F (-7.4°C) and an average high of 32°F (0°C). As January takes its course, Roscoe's average high-temperature registers at a wintry 32°F (0°C), closely aligning with the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Roscoe, is also a wintry month, with an average temperature fluctuating between 16.7°F (-8.5°C) and 32.4°F (0.2°C). Roscoe, Montana, commences February with an average high-temperature of a still cold 32.4°F (0.2°C), maintaining a close resemblance to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Roscoe, Montana, with an average temperature ranging between min 27.5°F (-2.5°C) and max 43.5°F (6.4°C). With the beginning of March, Roscoe's average high-temperature sees an increase, transitioning from an icy 32.4°F (0.2°C) in February to a chilly 43.5°F (6.4°C). Weather in March »
Weather in April
April is a cool spring month in Roscoe, Montana, with an average temperature varying between 33.3°F (0.7°C) and 51.3°F (10.7°C). April's arrival is noted with a slight increase in the average high-temperature, moving from a chilly 43.5°F (6.4°C) in March to a fresh 51.3°F (10.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Roscoe, Montana, with an average temperature varying between 61°F (16.1°C) and 41.4°F (5.2°C). In Roscoe, the onset of May comes with an increased average high-temperature, moving from April's cool 51.3°F (10.7°C) to an enjoyable 61°F (16.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Roscoe, Montana, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 49.6°F (9.8°C). Roscoe experiences a temperature shift with the start of June, with average high-temperatures moving from a comfortable 61°F (16.1°C) in May to an agreeable 72.7°F (22.6°C). Weather in June »
Weather in July
July is a warm summer month in Roscoe, Montana, with an average temperature ranging between max 82.9°F (28.3°C) and min 57.2°F (14°C). The month of July sees the highest average temperatures, reaching 82.9°F (28.3°C) at the peak and 57.2°F (14°C) at the low. July's mean heat index is evaluated at 82.4°F (28°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Roscoe, Montana, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 81.1°F (27.3°C). With the onset of August, the average high-temperature registers at a still moderately hot 81.1°F (27.3°C), subtly different from July's 82.9°F (28.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Roscoe, Montana, with an average temperature fluctuating between 50.2°F (10.1°C) and 72°F (22.2°C). September brings a decrease in the average high-temperature, shifting from a warm 81.1°F (27.3°C) in August to a pleasant 72°F (22.2°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Roscoe, Montana, with an average temperature varying between 37.9°F (3.3°C) and 55.2°F (12.9°C). As September transitions into October, Roscoe sees a clear drop in the average high-temperature, declining from a pleasant 72°F (22.2°C) to a fresh 55.2°F (12.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Roscoe, Montana, with an average temperature fluctuating between 26.8°F (-2.9°C) and 41.9°F (5.5°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a cool 55.2°F (12.9°C) in October to a wintry 41.9°F (5.5°C). Weather in November »
Weather in December
December, the first month of the winter in Roscoe, is also a subzero cold month, with an average temperature varying between 17.4°F (-8.1°C) and 30.7°F (-0.7°C). During the coldest month, December, temperatures average a high of 30.7°F (-0.7°C) and a low of 17.4°F (-8.1°C). Weather in December »
Updated: Jul 17, 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
What is the most humid month?
With an average relative humidity of 76%, January is the most humid month.
What is the driest month in Roscoe?
January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.51" (13mm) of precipitation.
How much does it rain?
In Roscoe, during the entire year, the rain falls for 108.1 days and collects up to 12.83" (326mm) of precipitation.
When does it snow?
January through June, September through December are months with snowfall.
How many days does it snow?
In Roscoe, during the entire year, snow falls for 61.5 days and aggregates up to 41.77" (1061mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 10.8 days and typically aggregates up to 6.81" (173mm) of snow.
What is the month with the least sunshine?
With an average of 6.2h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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.
What is the wettest month?
May is the month with the most rainfall in Roscoe. Rain falls for 16.3 days and accumulates 2.09" (53mm) of precipitation.
When are the longest days?
The month with the longest days in Roscoe is June, with an average of 15h and 36min of daylight.
What month is the hottest?
July, with an average high of 82.9°F (28.3°C) and a low of 57.2°F (14°C), signifies the warmest month of the year.
When it does not snow in Roscoe?
In Roscoe, snow does not fall in July and August.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.9h of sunshine.
What is the month with the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 6.
What is the least humid month?
With an average relative humidity of 41%, August is the least humid month.
What are the coldest months?
The lowest temperatures are recorded in December, with averages reaching a high of 30.7°F (-0.7°C) and a low of 17.4°F (-8.1°C).
What is the month with the shortest days?
With an average of 8h and 48min of daylight, December has the shortest days of the year in Roscoe.
Average temperature
Roscoe, MT
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure
Roscoe, MT
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Roscoe, MT
- Average wind speed in January:
8.7mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.9mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Roscoe, MT
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Roscoe, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.87" - Average rainfall in March:
1.1" - Average rainfall in April:
1.73" - Average rainfall in May:
2.09" - Average rainfall in June:
1.61"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.75" - Average rainfall in September:
0.79" - Average rainfall in October:
1.1" - Average rainfall in November:
0.83" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days
Roscoe, MT
- Average rainfall days in January:
6 days - Average rainfall days in February:
4 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
13 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
9.4 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
8 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall
Roscoe, MT
- Average snowfall in January:
3.58" - Average snowfall in February:
6.81" - Average snowfall in March:
5.91" - Average snowfall in April:
6.18" - Average snowfall in May:
2.83" - Average snowfall in June:
0.12"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days
Roscoe, MT
- Average snowfall days in January:
9.9 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
8.5 days - Average snowfall days in April:
6.6 days - Average snowfall days in May:
2.4 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:
0.8 days - Average snowfall days in October:
4.6 days - Average snowfall days in November:
8.2 days - Average snowfall days in December:
9.6 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Roscoe, MT
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 5min
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 2min - Average sunshine in February:
6h and 1min - Average sunshine in March:
8h and 2min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 3min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 4min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days
Roscoe, MT
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index
Roscoe, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Roscoe, MT
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Roscoe, 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).
Roscoe, Montana, USA
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