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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, the same as December, in Greycliff, Montana, is a freezing cold winter month, with an average temperature varying between 30.6°F (-0.8°C) and 17.8°F (-7.9°C). January's average high-temperature stands at a still freezing cold 30.6°F (-0.8°C), showing little deviation from December's 28.4°F (-2°C). Weather in January »
Weather in February
February, the last month of the winter in Greycliff, is another freezing cold month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 15.3°F (-9.3°C). The shift to February signals an average high-temperature of a still freezing cold 29.7°F (-1.3°C), subtly varied from January's 30.6°F (-0.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Greycliff, Montana, with an average temperature varying between 24.3°F (-4.3°C) and 39.4°F (4.1°C). March comes with an increase, with the average high-temperature moving from a subzero cold 29.7°F (-1.3°C) in February to an icy 39.4°F (4.1°C). Weather in March »
Weather in April
April in Greycliff, Montana, is a frosty spring month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 46.6°F (8.1°C). As April arrives, Greycliff's weather shows a minor increase in high-temperatures, edging from March's cold 39.4°F (4.1°C) to a frosty 46.6°F (8.1°C). Weather in April »
Weather in May
May, the last month of the spring in Greycliff, is a mild month, with an average temperature fluctuating between 37.4°F (3°C) and 56.8°F (13.8°C). Greycliff's transition into May sees a rise in the average high-temperature, advancing from a frosty 46.6°F (8.1°C) in April to a mild 56.8°F (13.8°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Greycliff, Montana, with an average temperature varying between 46°F (7.8°C) and 68°F (20°C). Entering June, Greycliff sees a temperature rise, with the average high-temperature advancing from May's refreshing 56.8°F (13.8°C) to an agreeable 68°F (20°C). Weather in June »
Weather in July
July is a warm summer month in Greycliff, Montana, with an average temperature fluctuating between 78.6°F (25.9°C) and 52.5°F (11.4°C). The warmest temperatures occur during July, when averages reach a peak of 78.6°F (25.9°C) and a low of 52.5°F (11.4°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Greycliff, Montana, with an average temperature ranging between min 52.9°F (11.6°C) and max 76.6°F (24.8°C). August registers an average high-temperature of a still moderately hot 76.6°F (24.8°C), slightly varied from July's 78.6°F (25.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Greycliff, is still a comfortable month, with an average temperature varying between 45.3°F (7.4°C) and 66.7°F (19.3°C). The transition into September involves a decrease in the average high-temperature, falling from a warm 76.6°F (24.8°C) in August to an enjoyable 66.7°F (19.3°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Greycliff, Montana, with an average temperature varying between 34.3°F (1.3°C) and 51.1°F (10.6°C). October signals a clear decrease in the average high-temperature, dropping from September's comfortable 66.7°F (19.3°C) to a fresh 51.1°F (10.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Greycliff, Montana, with an average temperature fluctuating between 23.9°F (-4.5°C) and 38.1°F (3.4°C). The onset of November is marked by a decrease in temperature, transitioning from a cool 51.1°F (10.6°C) in October to an icy 38.1°F (3.4°C). Weather in November »
Weather in December
December, the first month of the winter in Greycliff, is still a freezing cold month, with an average temperature varying between 16°F (-8.9°C) and 28.4°F (-2°C). December proves to be the coldest month, recording an average maximum temperature of 28.4°F (-2°C) and a minimum temperature of 16°F (-8.9°C). Weather in December »
Updated: Feb 13, 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 driest month in Greycliff?
January is the month with the least rainfall. Rain falls for 5.3 days and accumulates 0.47" (12mm) of precipitation.
How much does it rain in Greycliff?
In Greycliff, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.
When does it snow in Greycliff?
January through May, September through December are months with snowfall.
How much does it snow in Greycliff?
Throughout the year, there are 67.6 snowfall days, and 38.19" (970mm) of snow is accumulated.
What are the months with the least sunshine in Greycliff?
January, February and December, with an average of 6.2h of sunshine, are months with the least sunshine.
What is the month with the lowest UV index in Greycliff?
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month in Greycliff?
February is the most humid month in Greycliff, with an average relative humidity of 80%.
When does it snow the most in Greycliff?
The month with the most snowfall is March, when snow falls for 10.1 days and typically aggregates up to 7.09" (180mm) of snow.
When is Daylight Saving Time (DST) in Greycliff?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Greycliff, Montana, 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 in Greycliff?
May is the month with the most rainfall. Rain falls for 19.8 days and accumulates 3.15" (80mm) of precipitation.
When it does not snow in Greycliff?
In Greycliff, Montana, snow does not fall in June through August.
When are the longest days in Greycliff?
With an average of 15h and 42min of daylight, June has the longest days of the year in Greycliff.
What time of the year is the hottest in Greycliff?
July is the month when Greycliff, Montana, experiences its warmest temperatures, averaging a high of 78.6°F (25.9°C) and a low of 52.5°F (11.4°C).
What month has the most sunshine in Greycliff?
July has the most sunshine of the year in Greycliff, Montana, with an average of 11.8h of sunshine.
When is the highest UV index in Greycliff?
July is the month with the highest UV index in Greycliff, Montana, with an average maximum UV index of 6.
What is the least humid month in Greycliff?
The least humid month in Greycliff is August, with an average relative humidity of 47%.
What part of the year is the coldest in Greycliff?
December, with its average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16°F (-8.9°C), holds the record as the coldest month in Greycliff.
What is the month with the shortest days in Greycliff?
December has the shortest days of the year in Greycliff, Montana, with an average of 8h and 42min of daylight.
Average temperature
Greycliff, MT
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure
Greycliff, MT
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.94"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:
30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Greycliff, MT
- Average wind speed in January:
11.1mph - Average wind speed in February:
9.2mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.9mph - Average wind speed in October:
9.1mph - Average wind speed in November:
10.1mph - Average wind speed in December:
10.5mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Greycliff, MT
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Greycliff, MT
- Average rainfall in January:
0.47" - Average rainfall in February:
0.83" - Average rainfall in March:
1.3" - Average rainfall in April:
1.81" - Average rainfall in May:
3.15" - Average rainfall in June:
2.2"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Greycliff, MT
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
19.8 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
6.3 days - Average rainfall days in December:
5.3 days
The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and December (5.3 days).
Average snowfall
Greycliff, MT
- Average snowfall in January:
3.27" - Average snowfall in February:
6.34" - Average snowfall in March:
7.09" - Average snowfall in April:
6.38" - Average snowfall in May:
1.3" - Average snowfall in June:
0"
The month with the highest snowfall is March (7.09").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Greycliff, MT
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
12.9 days - Average snowfall days in March:
10.1 days - Average snowfall days in April:
7.9 days - Average snowfall days in May:
1.9 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:
1 days - Average snowfall days in October:
4.9 days - Average snowfall days in November:
8.8 days - Average snowfall days in December:
10.5 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Greycliff, 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:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - 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 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
6h and 1min - Average sunshine in March:
8h and 0min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 5min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 3min - Average sunshine in September:
10h and 1min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 12min).
Average sunshine days
Greycliff, MT
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
7.7 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index
Greycliff, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Greycliff, MT
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility
Greycliff, 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).
Greycliff, Montana, USA
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