Climate and monthly weather forecastRollins, MT
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Rollins, Montana, with an average temperature varying between 17.6°F (-8°C) and 28.9°F (-1.7°C). The advent of January sees the average high-temperature at a still freezing cold 28.9°F (-1.7°C), subtly shifted from December's 27.5°F (-2.5°C). Weather in January »Weather in February
February, the last month of the winter in Rollins, is also a subzero cold month, with an average temperature fluctuating between 16.9°F (-8.4°C) and 29.1°F (-1.6°C). Rollins in February witnesses an average high-temperature of a still freezing cold 29.1°F (-1.6°C), indicating a slight variation from January's 28.9°F (-1.7°C). Weather in February »Weather in March
March, the first month of the spring in Rollins, is a wintry month, with an average temperature fluctuating between 37.8°F (3.2°C) and 24.3°F (-4.3°C). As Rollins welcomes March, the average high-temperature sees a modest rise, transitioning from a subzero cold 29.1°F (-1.6°C) in February to a wintry 37.8°F (3.2°C). Weather in March »Weather in April
April is a chilly spring month in Rollins, Montana, with temperature in the range of an average low of 30.2°F (-1°C) and an average high of 47.3°F (8.5°C). April's arrival is marked by an increase in the average high-temperature, moving from an icy 37.8°F (3.2°C) in March to a chilly 47.3°F (8.5°C). Weather in April »Weather in May
May, the last month of the spring in Rollins, is a moderate month, with an average temperature fluctuating between 58.8°F (14.9°C) and 37°F (2.8°C). The transition to May introduces an increase in the average high-temperature, shifting from a frosty 47.3°F (8.5°C) in April to a moderate 58.8°F (14.9°C). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Rollins, Montana, with an average temperature ranging between max 65.8°F (18.8°C) and min 43°F (6.1°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from a moderate 58.8°F (14.9°C) in May to a still refreshing 65.8°F (18.8°C). Weather in June »Weather in July
July in Rollins, Montana, is a warm summer month, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 76.6°F (24.8°C). July, characterized by an average high temperature of 76.6°F (24.8°C) and a low temperature of 48.7°F (9.3°C), is generally the warmest month. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Rollins, Montana, with an average temperature varying between 48.2°F (9°C) and 76.5°F (24.7°C). Rollins, Montana, commences August with an average high-temperature of a still warm 76.5°F (24.7°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
September, the first month of the autumn in Rollins, is also an enjoyable month, with an average temperature fluctuating between 66.2°F (19°C) and 41.9°F (5.5°C). September ushers in a slight temperature change, with average high-temperatures reducing from August's moderately hot 76.5°F (24.7°C) to an enjoyable 66.2°F (19°C). Weather in September »Weather in October
October, like September, is another chilly autumn month in Rollins, Montana, with an average temperature varying between 49.6°F (9.8°C) and 32.9°F (0.5°C). The arrival of October signals a clear decrease in the average high-temperature, falling from a comfortable 66.2°F (19°C) in September to a chilly 49.6°F (9.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Rollins, Montana, with an average temperature varying between 25°F (-3.9°C) and 36.1°F (2.3°C). As November arrives, Rollins's weather displays a decrease in high-temperatures, transitioning from October's chilly 49.6°F (9.8°C) to a wintry 36.1°F (2.3°C). Weather in November »Weather in December
December, the first month of the winter in Rollins, is also a subzero cold month, with an average temperature fluctuating between 16.7°F (-8.5°C) and 27.5°F (-2.5°C). December is the coldest month, with the temperature often reaching an average high of 27.5°F (-2.5°C) and an average low of 16.7°F (-8.5°C). Weather in December »Updated: Jul 23, 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
January is the most humid month, with an average relative humidity of 91%.
Throughout the year, in Rollins, there are 153.5 rainfall days, and 19.76" (502mm) of precipitation is accumulated.
Months with snowfall are January through May, September through December.
In Rollins, during the entire year, snow falls for 94.5 days and aggregates up to 52.6" (1336mm) of snow.
With an average of 4.1h of sunshine, January has the least sunshine of the year.
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.
The month with the most rainfall is June, when the rain falls for 16 days and typically aggregates up to 2.36" (60mm) of precipitation.
In Rollins, snow does not fall in June through August.
With an average of 16h and 0min of daylight, June has the longest days of the year.
Rollins's temperature records reveal July as the warmest month, marked by average highs of 76.6°F (24.8°C) and lows of 48.7°F (9.3°C).
The months with the least rainfall are July and August Rain falls for 8.6 days and accumulates 0.63" (16mm) of rain.
With an average of 11.8h of sunshine, July has the most sunshine of the year.
The month with the highest UV index is July, with an average maximum UV index of 5.
With an average relative humidity of 53%, August is the least humid month in Rollins.
December, with its average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 16.7°F (-8.5°C), holds the record as the coldest month.
December is the month with the most snowfall in Rollins. Snow falls for 20.1 days and accumulates 12.32" (313mm) of snow.
The month with the shortest days is December, with an average of 8h and 30min of daylight.
Average temperature
Rollins, MT
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (27.5°F).
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure
Rollins, 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:
29.95"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.04"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
Rollins, MT
- Average wind speed in January:
4.3mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.6mph - Average wind speed in April:
4.9mph - Average wind speed in May:
4.5mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.8mph - Average wind speed in September:
4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.6mph - Average wind speed in December:
4.3mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity
Rollins, MT
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (53%).
Average rainfall
Rollins, MT
- Average rainfall in January:
1.89" - Average rainfall in February:
1.89" - Average rainfall in March:
2.01" - Average rainfall in April:
2.09" - Average rainfall in May:
1.77" - Average rainfall in June:
2.36"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.63" - Average rainfall in September:
1.1" - Average rainfall in October:
1.77" - Average rainfall in November:
1.65" - Average rainfall in December:
1.97"
The wettest month (with the highest rainfall) is June (2.36").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days
Rollins, MT
- Average rainfall days in January:
10 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
17.8 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
8.6 days - Average rainfall days in August:
7.2 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
12.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is April (18.8 days).
The month with the least rainy days is August (7.2 days).
Average snowfall
Rollins, MT
- Average snowfall in January:
11.61" - Average snowfall in February:
11.57" - Average snowfall in March:
6.61" - Average snowfall in April:
3.11" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is December (12.32").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Rollins, MT
- Average snowfall days in January:
18.8 days - Average snowfall days in February:
17.8 days - Average snowfall days in March:
13.9 days - Average snowfall days in April:
7 days - Average snowfall days in May:
0.8 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:
0.2 days - Average snowfall days in October:
3.6 days - Average snowfall days in November:
12.3 days - Average snowfall days in December:
20.1 days
The month with the highest number of snowfall days is December (20.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Rollins, MT
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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 30min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 42min - Average sunshine in May:
10h and 18min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Rollins, MT
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
7.8 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
8.7 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
20.2 days - Average sunshine days in August:
18.9 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
9.2 days
The month with the most sunshine days is July (20.2 days).
The months with the least sunshine days are February and March (7.8 days).
Average UV index
Rollins, MT
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Rollins, MT
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Rollins, MT
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
