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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 Harlem, Montana, is a freezing cold winter month, with temperature in the range of an average high of 26.8°F (-2.9°C) and an average low of 14.2°F (-9.9°C). In Harlem, January's average high-temperature stands at a still subzero cold 26.8°F (-2.9°C), closely related to the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Harlem, Montana, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 26.2°F (-3.2°C). The month of February sees the lowest average temperatures, reaching 26.2°F (-3.2°C) at the peak and 12.6°F (-10.8°C) at the low. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Harlem, Montana, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 24.8°F (-4°C). March's arrival coincides with a temperature rise, moving from February's freezing cold 26.2°F (-3.2°C) to a wintry 38.8°F (3.8°C). Weather in March »
Weather in April
April in Harlem, Montana, is a fresh spring month, with an average temperature fluctuating between 35.6°F (2°C) and 52.5°F (11.4°C). Harlem's weather shows a temperature rise with the arrival of April, moving from a wintry 38.8°F (3.8°C) in March to a cool 52.5°F (11.4°C). Weather in April »
Weather in May
May, the last month of the spring in Harlem, is a refreshing month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 64°F (17.8°C). The arrival of May brings an increase in high-temperatures, moving from a cool 52.5°F (11.4°C) in April to a comfortable 64°F (17.8°C). Weather in May »
Weather in June
June, the first month of the summer in Harlem, is a pleasant month, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 52.9°F (11.6°C). June showcases a minor temperature ascent, adjusting from May's comfortable 64°F (17.8°C) to a pleasant 72.9°F (22.7°C). Weather in June »
Weather in July
July is a moderately hot summer month in Harlem, Montana, with an average temperature fluctuating between 59.7°F (15.4°C) and 82°F (27.8°C). With an average high-temperature of 82°F (27.8°C) and an average low-temperature of 59.7°F (15.4°C), July is the warmest month. For July, the heat index is calculated to be 82.4°F (28°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Harlem, Montana, with an average temperature fluctuating between 60.3°F (15.7°C) and 81.1°F (27.3°C). Harlem observes an average high-temperature of a still warm 81.1°F (27.3°C) in August, barely different from 82°F (27.8°C) in July. Weather in August »
Weather in September
September, the first month of the autumn in Harlem, is also an agreeable month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 52°F (11.1°C). The beginning of September marks a decrease in the average high-temperature, transitioning from a warm 81.1°F (27.3°C) in August to a pleasant 70°F (21.1°C). Weather in September »
Weather in October
October, like September, in Harlem, Montana, is another fresh autumn month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 53.6°F (12°C). October brings a significant decrease in the average high-temperature, moving down from an agreeable 70°F (21.1°C) in September to a fresh 53.6°F (12°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a wintry month in Harlem, Montana, with an average temperature ranging between max 39.6°F (4.2°C) and min 26.8°F (-2.9°C). The shift from October to November involves a decrease in the average high-temperature, from a cool 53.6°F (12°C) to an icy 39.6°F (4.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Harlem, Montana, with an average temperature ranging between max 26.6°F (-3°C) and min 14.9°F (-9.5°C). Onset of December comes with a temperature decline, the average high falling from a cold 39.6°F (4.2°C) in November to a freezing cold 26.6°F (-3°C). Weather in December »
Updated: Jul 30, 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?
The most humid month is January, with an average relative humidity of 82%.
How many days does it rain?
In Harlem, Montana, during the entire year, the rain falls for 99.1 days and collects up to 10.12" (257mm) of precipitation.
When does it snow?
January through May, September through December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 12.4 days and accumulates 4.02" (102mm) of snow.
How much does it snow in Harlem?
In Harlem, during the entire year, snow falls for 57.6 days and aggregates up to 21.69" (551mm) of snow.
What is the month with the lowest UV index?
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
What month is the coldest?
In Harlem, February registers the lowest temperatures, averaging 26.2°F (-3.2°C) at the peak and 12.6°F (-10.8°C) at the lowest.
What is the driest month?
The months with the least rainfall in Harlem, Montana, are February, March and December Rain falls for 4.6 days and accumulates 0.55" (14mm) of rain.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 5.2h of sunshine.
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?
June is the month with the most rainfall. Rain falls for 13 days and accumulates 1.85" (47mm) of precipitation.
When it does not snow?
In Harlem, snow does not fall in June through August.
When are the longest days?
June has the longest days of the year, with an average of 16h and 6min of daylight.
When is the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Harlem.
What is the hottest time of year?
July tends to be the warmest month, with temperatures averaging a daily high of 82°F (27.8°C) and a low of 59.7°F (15.4°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12h of sunshine.
What is the least humid month in Harlem?
August is the least humid month, with an average relative humidity of 42%.
What is the month with the shortest days in Harlem?
December has the shortest days of the year, with an average of 8h and 24min of daylight.
Average temperature
Harlem, MT
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (26.2°F).
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is February (12.6°F).
Average pressure
Harlem, MT
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"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:
30.03"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed
Harlem, MT
- Average wind speed in January:
10.6mph - Average wind speed in February:
9.2mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.8mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
8.7mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity
Harlem, MT
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Harlem, MT
- Average rainfall in January:
0.63" - Average rainfall in February:
0.55" - Average rainfall in March:
0.55" - Average rainfall in April:
1.02" - Average rainfall in May:
1.42" - Average rainfall in June:
1.85"
- Average rainfall in July:
0.71" - Average rainfall in August:
0.75" - Average rainfall in September:
0.79" - Average rainfall in October:
0.67" - Average rainfall in November:
0.63" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are February, March and December (0.55").
Average rainfall days
Harlem, MT
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
8.9 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
13.2 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
7.4 days - Average rainfall days in September:
7.1 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
5 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.6 days).
Average snowfall
Harlem, MT
- Average snowfall in January:
4.02" - Average snowfall in February:
3.74" - Average snowfall in March:
2.13" - Average snowfall in April:
2.8" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Harlem, MT
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
11.7 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
5 days - Average snowfall days in May:
0.6 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:
0.3 days - Average snowfall days in October:
2.3 days - Average snowfall days in November:
6 days - Average snowfall days in December:
11.1 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Harlem, MT
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
5h and 1min - Average sunshine in March:
7h and 2min - Average sunshine in April:
9h and 3min - Average sunshine in May:
10h and 2min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 4min - 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:
5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Harlem, MT
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
21.6 days - Average sunshine days in August:
21.1 days - Average sunshine days in September:
21 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17 days
The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is April (12.5 days).
Average UV index
Harlem, MT
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Harlem, MT
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility
Harlem, 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).
Harlem, Montana, USA
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