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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 Greenough, Montana, is a freezing cold winter month, with temperature in the range of an average high of 28.4°F (-2°C) and an average low of 13.5°F (-10.3°C). Greenough marks the arrival of January with an average high-temperature of a still subzero cold 28.4°F (-2°C), hardly different from December's 26.1°F (-3.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Greenough, Montana, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 28.6°F (-1.9°C). As January transitions into February, Greenough records an average high-temperature of a still freezing cold 28.6°F (-1.9°C), showing a gentle shift from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Greenough, Montana, with an average temperature varying between 37.6°F (3.1°C) and 21.2°F (-6°C). March indicates a change in the average high-temperature, moving up from a subzero cold 28.6°F (-1.9°C) in February to an icy 37.6°F (3.1°C). Weather in March »
Weather in April
April is a frosty spring month in Greenough, Montana, with temperature in the range of an average low of 26.2°F (-3.2°C) and an average high of 46.6°F (8.1°C). With the onset of April, Greenough experiences a temperature shift, with the average high-temperature moving from an icy 37.6°F (3.1°C) in March to a frosty 46.6°F (8.1°C). Weather in April »
Weather in May
May, the last month of the spring in Greenough, is a moderate month, with an average temperature ranging between max 59.2°F (15.1°C) and min 33.4°F (0.8°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a chilly 46.6°F (8.1°C) in April to a moderate 59.2°F (15.1°C). Weather in May »
Weather in June
June, the first month of the summer in Greenough, is a refreshing month, with an average temperature fluctuating between 67.6°F (19.8°C) and 40.3°F (4.6°C). With the transition into June, Greenough experiences a subtle uplift in average high-temperatures, adjusting from a mild 59.2°F (15.1°C) in May to a comfortable 67.6°F (19.8°C). Weather in June »
Weather in July
July is a moderately hot summer month in Greenough, Montana, with an average temperature fluctuating between 45.5°F (7.5°C) and 79.2°F (26.2°C). During the warmest month, July, temperatures average a high of 79.2°F (26.2°C) and a low of 45.5°F (7.5°C). Weather in July »
Weather in August
August, the last month of the summer in Greenough, is another warm month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 77.9°F (25.5°C). The onset of August marks an average high-temperature of a still warm 77.9°F (25.5°C), hardly differing from July's 79.2°F (26.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Greenough, is still a comfortable month, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 67.1°F (19.5°C). September brings a decrease in the average high-temperature, shifting from a moderately hot 77.9°F (25.5°C) in August to a comfortable 67.1°F (19.5°C). Weather in September »
Weather in October
October, like September, is a frosty autumn month in Greenough, Montana, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 49.8°F (9.9°C). October's arrival signals a significant decrease in average high-temperatures, falling from September's comfortable 67.1°F (19.5°C) to a frosty 49.8°F (9.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Greenough, is also an icy month, with temperature in the range of an average low of 20.5°F (-6.4°C) and an average high of 36°F (2.2°C). The arrival of November corresponds with a temperature reduction, down from October's chilly 49.8°F (9.9°C) to an icy 36°F (2.2°C). Weather in November »
Weather in December
December, the first month of the winter in Greenough, is still a freezing cold month, with temperature in the range of an average low of 12.2°F (-11°C) and an average high of 26.1°F (-3.3°C). In Greenough, the month of December is known for its lowest average temperatures, reaching a high of 26.1°F (-3.3°C) and a low of 12.2°F (-11°C). Weather in December »
Updated: Aug 1, 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?
January is the most humid month, with an average relative humidity of 91%.
How much does it rain?
Throughout the year, there are 46.4 rainfall days, and 2.4" (61mm) of precipitation is accumulated.
When does it snow in Greenough?
January through June, September through December are months with snowfall.
How much does it snow?
Throughout the year, there are 31.4 snowfall days, and 7.64" (194mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 5.2h of sunshine.
What is the month with the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 5.8 days and typically aggregates up to 1.57" (40mm) of snow.
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 rainiest month in Greenough?
June is the month with the most rainfall. Rain falls for 4.7 days and accumulates 0.43" (11mm) of precipitation.
When are the longest days?
With an average of 15h and 48min of daylight, June has the longest days of the year in Greenough.
What are the months with the highest UV index?
The months with the highest UV index in Greenough, Montana, are June and July, with an average maximum UV index of 5.
What time of the year is the hottest?
In Greenough, July records the average highest temperatures, peaking at 79.2°F (26.2°C) and reaching a low of 45.5°F (7.5°C).
What are the least humid months?
The months with the lowest humidity in Greenough are July and August, with an average relative humidity of 51%.
When it does not snow?
July and August are months without snowfall.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 12h of sunshine.
What is the coldest time of year?
Greenough's coldest temperatures are experienced in December, with average high temperatures of 26.1°F (-3.3°C) and lows of 12.2°F (-11°C).
What is the driest month?
The month with the least rainfall is December, when the rain falls for 3.5 days and typically collects 0.08" (2mm) of precipitation.
What is the month with the shortest days in Greenough?
December has the shortest days of the year, with an average of 8h and 36min of daylight.
Average temperature
Greenough, MT
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.1°F).
The months with the highest average low temperature are July and August (45.5°F).
The coldest month (with the lowest average low temperature) is December (12.2°F).
Average pressure
Greenough, MT
- Average pressure in January:
30.18"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"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:
29.96"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Greenough, MT
- Average wind speed in January:
5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.3mph - Average wind speed in April:
6mph - Average wind speed in May:
5.4mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5mph - Average wind speed in October:
5.2mph - Average wind speed in November:
5mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Greenough, MT
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall
Greenough, MT
- Average rainfall in January:
0.16" - Average rainfall in February:
0.2" - Average rainfall in March:
0.12" - Average rainfall in April:
0.31" - Average rainfall in May:
0.28" - Average rainfall in June:
0.43"
The wettest month (with the highest rainfall) is June (0.43").
The driest month (with the least rainfall) is December (0.08").
Average rainfall days
Greenough, MT
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.5 days - Average rainfall days in March:
4.3 days - Average rainfall days in April:
6.8 days - Average rainfall days in May:
6.3 days - Average rainfall days in June:
4.7 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
3.2 days - Average rainfall days in September:
2.8 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
2.7 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is April (6.8 days).
The month with the least rainy days is January (2.3 days).
Average snowfall
Greenough, MT
- Average snowfall in January:
1.1" - Average snowfall in February:
1.57" - Average snowfall in March:
0.79" - Average snowfall in April:
1.1" - Average snowfall in May:
0.16" - Average snowfall in June:
0.51"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are July and August (0").
Average snowfall days
Greenough, MT
- Average snowfall days in January:
5.4 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
3.7 days - Average snowfall days in May:
0.5 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:
0.3 days - Average snowfall days in October:
2.4 days - Average snowfall days in November:
3.4 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Greenough, MT
- Average daylight in January:
9h and 0min - 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 1min - Average daylight in June:
15h and 5min
- 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 2min - Average daylight in December:
8h and 4min
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 1min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 3min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 5min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days
Greenough, MT
- Average sunshine days in January:
26.1 days - Average sunshine days in February:
22.5 days - Average sunshine days in March:
24.9 days - Average sunshine days in April:
21.9 days - Average sunshine days in May:
23 days - Average sunshine days in June:
24.7 days
- Average sunshine days in July:
27 days - Average sunshine days in August:
26.7 days - Average sunshine days in September:
26.7 days - Average sunshine days in October:
25.5 days - Average sunshine days in November:
25.6 days - Average sunshine days in December:
26.7 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (21.9 days).
Average UV index
Greenough, MT
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Greenough, MT
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility
Greenough, 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 and December (4mi).
Greenough, Montana, USA
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