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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, like December, is a freezing cold winter month in Happy Haven, Montana, with an average temperature varying between 14.4°F (-9.8°C) and 27.1°F (-2.7°C). In January, Happy Haven notes an average high-temperature of a still subzero cold 27.1°F (-2.7°C), hardly different from the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Happy Haven, is another freezing cold month, with an average temperature ranging between min 13.5°F (-10.3°C) and max 28.2°F (-2.1°C). The onset of February manifests an average high-temperature of a still freezing cold 28.2°F (-2.1°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Happy Haven, is a cold month, with an average temperature fluctuating between 36.1°F (2.3°C) and 21.6°F (-5.8°C). In March, the average high-temperature marginally rises from a freezing cold 28.2°F (-2.1°C) in February to an icy 36.1°F (2.3°C). Weather in March »
Weather in April
April is a chilly spring month in Happy Haven, Montana, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 46.6°F (8.1°C). With the transition into April, Happy Haven experiences an increase in average high-temperatures, moving up from an icy 36.1°F (2.3°C) in March to a frosty 46.6°F (8.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Happy Haven, Montana, with an average temperature fluctuating between 35.2°F (1.8°C) and 59.5°F (15.3°C). As Happy Haven enters May, the average high-temperature increases from the a chilly 46.6°F (8.1°C) of April to a mild 59.5°F (15.3°C). Weather in May »
Weather in June
The first month of the summer, June, is an enjoyable month in Happy Haven, Montana, with an average temperature ranging between max 66.4°F (19.1°C) and min 41.2°F (5.1°C). June comes with a subtle rise, with the average high-temperature adjusting from a refreshing 59.5°F (15.3°C) in May to an enjoyable 66.4°F (19.1°C). Weather in June »
Weather in July
July in Happy Haven, Montana, is a moderately hot summer month, with an average temperature fluctuating between 77.9°F (25.5°C) and 45.1°F (7.3°C). July is the warmest month, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 45.1°F (7.3°C). Weather in July »
Weather in August
August, the last month of the summer in Happy Haven, is also a moderately hot month, with an average temperature varying between 45.5°F (7.5°C) and 76.8°F (24.9°C). Entering August, Happy Haven's average high-temperature reads a still moderately hot 76.8°F (24.9°C), indicating a close resemblance to the previous month's climate. Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Happy Haven, Montana, with an average temperature ranging between max 65.5°F (18.6°C) and min 39.2°F (4°C). Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 76.8°F (24.9°C) to a refreshing 65.5°F (18.6°C). Weather in September »
Weather in October
October, the same as September, in Happy Haven, Montana, is a frosty autumn month, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 48.4°F (9.1°C). Happy Haven's weather in October is marked by a clear decrease in the average high-temperature, moving down from September's refreshing 65.5°F (18.6°C) to a chilly 48.4°F (9.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a wintry month in Happy Haven, Montana, with an average temperature ranging between min 23°F (-5°C) and max 34.5°F (1.4°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's frosty 48.4°F (9.1°C) to a cold 34.5°F (1.4°C). Weather in November »
Weather in December
December, the first month of the winter in Happy Haven, is also a subzero cold month, with an average temperature ranging between min 13.8°F (-10.1°C) and max 25.7°F (-3.5°C). The coldest month is December, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C). Weather in December »
Updated: Jul 20, 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 93%.
How much does it rain?
In Happy Haven, during the entire year, the rain falls for 126.4 days and collects up to 11.22" (285mm) of precipitation.
When does it snow?
January through May, September through December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 18.9 days and typically aggregates up to 7.72" (196mm) of snow.
How many days does it snow?
In Happy Haven, during the entire year, snow falls for 97 days and aggregates up to 33.86" (860mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year in Happy Haven, with an average of 3.5h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Happy Haven, 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?
June is the month with the most rainfall. Rain falls for 13.7 days and accumulates 1.42" (36mm) of precipitation.
When it does not snow?
In Happy Haven, snow does not fall in June through August.
When are the longest days?
With an average of 16h and 0min of daylight, June has the longest days of the year.
What month is the hottest in Happy Haven?
July, with its high-temperature average of 77.9°F (25.5°C) and a low-temperature average of 45.1°F (7.3°C), is the warmest month.
What month has the most sunshine?
With an average of 11.9h of sunshine, July has the most sunshine of the year.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 6.
What is the least humid month?
August is the least humid month, with an average relative humidity of 55%.
What is the driest month?
The month with the least rainfall is August, when the rain falls for 6.3 days and typically collects 0.43" (11mm) of precipitation.
What time of the year is the coldest?
In Happy Haven, December is known for its average lowest temperatures, reaching a high of 25.7°F (-3.5°C) and a low of 13.8°F (-10.1°C).
What is the month with the shortest days in Happy Haven?
With an average of 8h and 24min of daylight, December has the shortest days of the year.
Average temperature
Happy Haven, MT
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure
Happy Haven, MT
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Happy Haven, MT
- Average wind speed in January:
3.9mph - Average wind speed in February:
4mph - Average wind speed in March:
4.3mph - Average wind speed in April:
4.6mph - Average wind speed in May:
4.4mph - Average wind speed in June:
4.3mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).
Average humidity
Happy Haven, MT
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).
Average rainfall
Happy Haven, MT
- Average rainfall in January:
1.02" - Average rainfall in February:
0.87" - Average rainfall in March:
1.14" - Average rainfall in April:
0.98" - Average rainfall in May:
1.1" - Average rainfall in June:
1.42"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.43" - Average rainfall in September:
0.71" - Average rainfall in October:
0.91" - Average rainfall in November:
1.14" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days
Happy Haven, MT
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
7.7 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
6.9 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall
Happy Haven, MT
- Average snowfall in January:
7.72" - Average snowfall in February:
6.26" - Average snowfall in March:
5.08" - Average snowfall in April:
2.09" - Average snowfall in May:
0.55" - Average snowfall in June:
0"
The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Happy Haven, MT
- Average snowfall days in January:
18.9 days - Average snowfall days in February:
17.3 days - Average snowfall days in March:
15.7 days - Average snowfall days in April:
7.4 days - Average snowfall days in May:
1.5 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:
3.5 days - Average snowfall days in November:
13.2 days - Average snowfall days in December:
19.1 days
The month with the highest number of snowfall days is December (19.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Happy Haven, 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 0min
- 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 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Happy Haven, MT
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
10 days - Average sunshine days in March:
7.7 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
21.5 days - Average sunshine days in August:
21.4 days - Average sunshine days in September:
19 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
11.6 days - Average sunshine days in December:
11.8 days
The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).
Average UV index
Happy Haven, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Happy Haven, MT
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Happy Haven, MT
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Happy Haven, Montana, USA
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