Climate and monthly weather forecastHarlowton, MT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Harlowton, Montana, is a freezing cold winter month, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 31.1°F (-0.5°C). The average high-temperature during January is a still freezing cold 31.1°F (-0.5°C), almost matching the conditions of the preceding month. Weather in January »Weather in February
February, the last month of the winter in Harlowton, is another freezing cold month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 16.3°F (-8.7°C). The start of February sees the average high-temperature at a still subzero cold 30.4°F (-0.9°C), showing little difference from January's 31.1°F (-0.5°C). Weather in February »Weather in March
March, the first month of the spring in Harlowton, is a wintry month, with an average temperature fluctuating between 41°F (5°C) and 25.3°F (-3.7°C). Harlowton's weather shows a temperature rise with the arrival of March, moving from a freezing cold 30.4°F (-0.9°C) in February to a cold 41°F (5°C). Weather in March »Weather in April
April is a frosty spring month in Harlowton, Montana, with an average temperature fluctuating between 31.8°F (-0.1°C) and 49.3°F (9.6°C). The shift from March to April is marked by a slight increase in the average high-temperature, moving from an icy 41°F (5°C) to a chilly 49.3°F (9.6°C). Weather in April »Weather in May
May, the last month of the spring in Harlowton, is a mild month, with an average temperature varying between 39.7°F (4.3°C) and 59.4°F (15.2°C). May's arrival coincides with a rise in the average high-temperature, moving from April's chilly 49.3°F (9.6°C) to a mild 59.4°F (15.2°C). Weather in May »Weather in June
June, the first month of the summer in Harlowton, is an agreeable month, with an average temperature ranging between min 47.7°F (8.7°C) and max 70°F (21.1°C). The transition from May to June brings a temperature rise, with average high-temperatures increasing from a refreshing 59.4°F (15.2°C) to a pleasant 70°F (21.1°C). Weather in June »Weather in July
July in Harlowton, Montana, is a warm summer month, with an average temperature fluctuating between 80.1°F (26.7°C) and 54.3°F (12.4°C). July, noted for its average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C), is considered the warmest month. Weather in July »Weather in August
August, the last month of the summer in Harlowton, is another warm month, with an average temperature ranging between min 54.3°F (12.4°C) and max 78.3°F (25.7°C). A minor adjustment in Harlowton's average high-temperature is noted with the start of August, touching a still warm 78.3°F (25.7°C) from July's 80.1°F (26.7°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Harlowton, Montana, with an average temperature varying between 68.5°F (20.3°C) and 47.1°F (8.4°C). September brings a decrease in the average high-temperature, shifting from a warm 78.3°F (25.7°C) in August to an agreeable 68.5°F (20.3°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Harlowton, Montana, with an average temperature varying between 52.5°F (11.4°C) and 34.9°F (1.6°C). In Harlowton, stepping into October signifies a significant temperature decrement, moving down from September's pleasant 68.5°F (20.3°C) to a cool 52.5°F (11.4°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Harlowton, Montana, with an average temperature fluctuating between 39.6°F (4.2°C) and 25.2°F (-3.8°C). With the onset of November, Harlowton's average high-temperature adjusts, receding from October's fresh 52.5°F (11.4°C) to an icy 39.6°F (4.2°C). Weather in November »Weather in December
December, the first month of the winter in Harlowton, is still a freezing cold month, with an average temperature ranging between max 29.3°F (-1.5°C) and min 16.7°F (-8.5°C). In Harlowton, December is the coldest month, with temperatures averaging a high of 29.3°F (-1.5°C) and a low of 16.7°F (-8.5°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
With an average relative humidity of 78%, January is the most humid month.
In Harlowton, Montana, during the entire year, the rain falls for 128.6 days and collects up to 12.8" (325mm) of precipitation.
Months with snowfall are January through May, September through December.
Throughout the year, there are 72.8 snowfall days, and 33.5" (851mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Harlowton.
The month with the least sunshine is February, with an average of 6.4h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Harlowton, 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.
The month with the most snowfall is April, when snow falls for 8.6 days and typically aggregates up to 6.61" (168mm) of snow.
The month with the most rainfall is May, when the rain falls for 18.7 days and typically aggregates up to 2.4" (61mm) of precipitation.
In Harlowton, snow does not fall in June through August.
The month with the longest days in Harlowton is June, with an average of 15h and 48min of daylight.
The warmest month in Harlowton, Montana, is July, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C).
With an average of 11.8h of sunshine, July has the most sunshine of the year.
With an average maximum UV index of 6, July is the month with the highest UV index in Harlowton, Montana.
August is the least humid month in Harlowton, Montana, with an average relative humidity of 45%.
With average temperatures fluctuating between a high of 29.3°F (-1.5°C) and a low of 16.7°F (-8.5°C), December stands out as the coldest month in Harlowton.
The month with the least rainfall in Harlowton, Montana, is December, when the rain falls for 7.2 days and typically collects 0.47" (12mm) of precipitation.
With an average of 8h and 42min of daylight, December has the shortest days of the year in Harlowton, Montana.
Average temperature
Harlowton, MT
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (29.3°F).
The months with the highest average low temperature are July and August (54.3°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).
Average pressure
Harlowton, MT
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"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:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Harlowton, MT
- Average wind speed in January:
10.9mph - Average wind speed in February:
9.3mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.9mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Harlowton, MT
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (45%).
Average rainfall
Harlowton, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.75" - Average rainfall in March:
1.02" - Average rainfall in April:
1.69" - Average rainfall in May:
2.4" - Average rainfall in June:
1.81"
- Average rainfall in July:
1.1" - Average rainfall in August:
0.83" - Average rainfall in September:
0.94" - Average rainfall in October:
0.63" - Average rainfall in November:
0.63" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days
Harlowton, MT
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
10.8 days - Average rainfall days in August:
9.3 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and December (7.2 days).
Average snowfall
Harlowton, MT
- Average snowfall in January:
3.98" - Average snowfall in February:
5.83" - Average snowfall in March:
5.59" - Average snowfall in April:
6.61" - Average snowfall in May:
1.18" - Average snowfall in June:
0"
The month with the highest snowfall is April (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Harlowton, MT
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
14.2 days - Average snowfall days in March:
10.5 days - Average snowfall days in April:
8.6 days - Average snowfall days in May:
2.5 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:
0.6 days - Average snowfall days in October:
4.3 days - Average snowfall days in November:
8.8 days - Average snowfall days in December:
11.4 days
The month with the highest number of snowfall days is February (14.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Harlowton, MT
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 42min
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 42min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
6h and 24min - Average sunshine in March:
8h and 18min - Average sunshine in April:
10h and 6min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 18min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days
Harlowton, MT
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
12 days - Average sunshine days in April:
9 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
16.5 days - Average sunshine days in August:
17.3 days - Average sunshine days in September:
19.2 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is April (9 days).
Average UV index
Harlowton, 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
Harlowton, MT
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Harlowton, 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).
