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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 Helmville, Montana, is a freezing cold winter month, with an average temperature ranging between max 28.8°F and min 14.5°F. An average high-temperature of a still subzero cold 28.8°F marks January, exhibiting a close resemblance to the conditions in December. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Helmville, Montana, with an average temperature varying between 13.3°F and 28.6°F. The transition from January to February brings an average high-temperature of a still freezing cold 28.6°F, barely different from January's 28.8°F. Weather in February »
Weather in March
March, the first month of the spring in Helmville, is a cold month, with an average temperature varying between 37°F and 20.7°F. Helmville's weather in March presents a minor rise in the average high-temperature, moving from a subzero cold 28.6°F in February to a wintry 37°F. Weather in March »
Weather in April
April in Helmville, Montana, is a frosty spring month, with an average temperature fluctuating between 45.3°F and 26.1°F. A soft shift in the average high-temperature is noticeable in April, transitioning from a wintry 37°F in March to a frosty 45.3°F. Weather in April »
Weather in May
May, the last month of the spring in Helmville, is a refreshing month, with temperature in the range of an average high of 57.4°F and an average low of 33.1°F. May's onset brings a rise in the average high-temperature, moving from a chilly 45.3°F in April to a refreshing 57.4°F. Weather in May »
Weather in June
The first month of the summer, June, is an enjoyable month in Helmville, Montana, with an average temperature ranging between min 39.9°F and max 66.7°F. The start of June is characterized by an increase in the average high-temperature, transitioning from a refreshing 57.4°F in May to a comfortable 66.7°F. Weather in June »
Weather in July
July is a warm summer month in Helmville, Montana, with an average temperature ranging between max 78.1°F and min 46°F. Temperature readings reach their annual highs in July, averaging 78.1°F and a minimum average of 46°F. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Helmville, Montana, with an average temperature varying between 46.6°F and 77°F. August's onset records a minor alteration in the average high-temperature to a still moderately hot 77°F from July's 78.1°F. Weather in August »
Weather in September
September, the first month of the autumn in Helmville, is still a refreshing month, with an average temperature ranging between min 40.3°F and max 66.4°F. Helmville, Montana, in September undergoes a mild reduction in the average high-temperature, shifting from August's moderately hot 77°F to a refreshing 66.4°F. Weather in September »
Weather in October
October, like September, is another chilly autumn month in Helmville, Montana, with temperature in the range of an average high of 49.8°F and an average low of 30°F. October's onset is marked by a clear temperature decrease, falling from a comfortable 66.4°F in September to a chilly 49.8°F. Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Helmville, Montana, with an average temperature fluctuating between 20.3°F and 36.3°F. With November's arrival, Helmville's weather changes as the average high-temperature falls from a chilly 49.8°F in October to a wintry 36.3°F. Weather in November »
Weather in December
December, the first month of the winter in Helmville, is also a subzero cold month, with an average temperature ranging between max 26.6°F and min 12.6°F. December stands out as Helmville's coldest month, with temperatures ranging between an average high of 26.6°F and a low of 12.6°F. Weather in December »
[Resources]FAQ
What are the most humid months in Helmville?
January and February, with an average relative humidity of 89%, are most humid months.
How much does it rain in Helmville?
In Helmville, during the entire year, the rain falls for 114.8 days and collects up to 12.13" of precipitation.
When does it snow in Helmville?
January through June, September through December are months with snowfall.
How much does it snow in Helmville?
Throughout the year, there are 86.9 snowfall days, and 39.96" of snow is accumulated.
What are the months with the least sunshine in Helmville?
January and December, with an average of 5.6h of sunshine, are months with the least sunshine in Helmville, Montana.
What is the month with the lowest UV index in Helmville?
The month with the lowest UV index is January, with an average maximum UV index of 1.
When does it snow the most in Helmville?
The month with the most snowfall in Helmville, Montana, is February, when snow falls for 18.1 days and typically aggregates up to 9.76" of snow.
When is Daylight Saving Time (DST) in Helmville?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from MDT to MST.
What is the wettest month in Helmville?
June is the month with the most rainfall in Helmville. Rain falls for 13.3 days and accumulates 1.81" of precipitation.
When are the longest days in Helmville?
The month with the longest days in Helmville, Montana, is June, with an average of 15h and 48min of daylight.
What month is the hottest in Helmville?
Helmville, Montana, witnesses the warmest weather in July, with temperatures averaging a high of 78.1°F and a low of 46°F.
What is the least humid month in Helmville?
The months with the lowest humidity are July and August, with an average relative humidity of 49%.
When it does not snow in Helmville?
In Helmville, Montana, snow does not fall in July and August.
What month has the most sunshine in Helmville?
The month with the most sunshine in Helmville, Montana, is July, with an average of 11.9h of sunshine.
When is the highest UV index in Helmville?
With an average maximum UV index of 5, July is the month with the highest UV index in Helmville.
What is the driest month in Helmville?
The months with the least rainfall are August through October Rain falls for 7 days and accumulates 0.59" of rain.
What time of the year is the coldest in Helmville?
December, marked by an average high-temperature of 26.6°F and a low-temperature of 12.6°F, is the coldest month in Helmville.
What is the month with the shortest days in Helmville?
The month with the shortest days in Helmville, Montana, is December, with an average of 8h and 36min of daylight.
Average temperature
Helmville, MT
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is December (26.6°F).
The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure
Helmville, MT
- Average pressure in January:
30.19"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:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Helmville, MT
- Average wind speed in January:
5.7mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.6mph - Average wind speed in April:
6mph - Average wind speed in May:
5.4mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
5.6mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.5mph
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
Helmville, MT
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall
Helmville, MT
- Average rainfall in January:
1.02" - Average rainfall in February:
1.38" - Average rainfall in March:
1.14" - Average rainfall in April:
1.34" - Average rainfall in May:
1.3" - Average rainfall in June:
1.81"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.59" - Average rainfall in September:
0.59" - Average rainfall in October:
0.59" - Average rainfall in November:
0.71" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is June (1.81").
The driest months (with the least rainfall) are August, September and October (0.59").
Average rainfall days
Helmville, MT
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
13 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
7 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
8.8 days
The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is November (6.5 days).
Average snowfall
Helmville, MT
- Average snowfall in January:
6.85" - Average snowfall in February:
9.76" - Average snowfall in March:
5.87" - Average snowfall in April:
4.09" - Average snowfall in May:
0.55" - Average snowfall in June:
0.98"
The month with the highest snowfall is February (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days
Helmville, MT
- Average snowfall days in January:
16.8 days - Average snowfall days in February:
18.1 days - Average snowfall days in March:
13.2 days - Average snowfall days in April:
7.9 days - Average snowfall days in May:
1.6 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:
0.5 days - Average snowfall days in October:
3.9 days - Average snowfall days in November:
9.3 days - Average snowfall days in December:
15.5 days
The month with the highest number of snowfall days is February (18.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Helmville, 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 4min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 2min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 5min - 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 2min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days
Helmville, MT
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
8.5 days - Average sunshine days in March:
11.5 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
15.2 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
20.7 days - Average sunshine days in August:
21.4 days - Average sunshine days in September:
21.9 days - Average sunshine days in October:
20 days - Average sunshine days in November:
18 days - Average sunshine days in December:
14.6 days
The month with the most sunshine days is September (21.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index
Helmville, MT
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Helmville, MT
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility
Helmville, MT
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Helmville, Montana, USA
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