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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 Heron, Montana, is a freezing cold winter month, with an average temperature ranging between max 30.7°F (-0.7°C) and min 19.6°F (-6.9°C). The commencement of January records an average high-temperature of a still freezing cold 30.7°F (-0.7°C), barely varying from December's 29.3°F (-1.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Heron, Montana, with an average temperature varying between 32°F (0°C) and 19.8°F (-6.8°C). With the arrival of February, Heron's average high-temperature registers at a wintry 32°F (0°C), indicating a subtle variation from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Heron, is still a cold month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 24.8°F (-4°C). A gentle upsurge in temperatures occurs as February gives way to March, with average highs shifting from a wintry 32°F (0°C) to a still icy 39.2°F (4°C). Weather in March »
Weather in April
April is a frosty spring month in Heron, Montana, with an average temperature ranging between max 48.7°F (9.3°C) and min 30.6°F (-0.8°C). As Heron enters April, the average high-temperature increases from the an icy 39.2°F (4°C) of March to a frosty 48.7°F (9.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Heron, Montana, with an average temperature varying between 61.3°F (16.3°C) and 37.9°F (3.3°C). With the onset of May, Heron's average high-temperature experiences a rise, moving from April's frosty 48.7°F (9.3°C) to a comfortable 61.3°F (16.3°C). Weather in May »
Weather in June
The first month of the summer, June, is still a refreshing month in Heron, Montana, with an average temperature fluctuating between 43°F (6.1°C) and 66.7°F (19.3°C). The shift from May to June introduces a subtle increase in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) to a still refreshing 66.7°F (19.3°C). Weather in June »
Weather in July
July is a moderately hot summer month in Heron, Montana, with an average temperature ranging between max 77.7°F (25.4°C) and min 48.7°F (9.3°C). The commencement of July sees a shift in the average high-temperature, moving from a refreshing 66.7°F (19.3°C) in June to a warm 77.7°F (25.4°C). Weather in July »
Weather in August
August, the last month of the summer in Heron, is another warm month, with an average temperature varying between 78.3°F (25.7°C) and 49.1°F (9.5°C). The warmest period tends to be August, when average temperatures fluctuate between a high of 78.3°F (25.7°C) and a low of 49.1°F (9.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Heron, is still a refreshing month, with an average temperature ranging between min 41.7°F (5.4°C) and max 67.8°F (19.9°C). The transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 78.3°F (25.7°C) in August to a refreshing 67.8°F (19.9°C). Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Heron, Montana, with an average temperature varying between 33.3°F (0.7°C) and 51.1°F (10.6°C). The onset of October brings a distinct decrease in the average high-temperature, receding from an enjoyable 67.8°F (19.9°C) in September to a cool 51.1°F (10.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Heron, Montana, with an average temperature varying between 37.8°F (3.2°C) and 26.4°F (-3.1°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a fresh 51.1°F (10.6°C) to a cold 37.8°F (3.2°C). Weather in November »
Weather in December
December, the first month of the winter in Heron, is also a subzero cold month, with temperature in the range of an average low of 18.7°F (-7.4°C) and an average high of 29.3°F (-1.5°C). December, marked by an average high-temperature of 29.3°F (-1.5°C) and a low-temperature of 18.7°F (-7.4°C), is the coldest month. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Heron?
January is the most humid month in Heron, Montana, with an average relative humidity of 94%.
How much does it rain in Heron?
Throughout the year, there are 161.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.
When does it snow in Heron?
January through May, September through December are months with snowfall.
When does it snow the most in Heron?
January is the month with the most snowfall. Snow falls for 15.9 days and accumulates 15.87" (403mm) of snow.
How many days does it snow in Heron?
Throughout the year, in Heron, Montana, there are 80.8 snowfall days, and 60" (1524mm) of snow is accumulated.
What is the month with the least sunshine in Heron?
January has the least sunshine of the year in Heron, with an average of 3.2h of sunshine.
What are the months with the lowest UV index in Heron?
The months with the lowest UV index in Heron, Montana, are January, February, November and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Heron?
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.
When it does not snow in Heron?
In Heron, Montana, snow does not fall in June through August.
When are the longest days in Heron?
The month with the longest days in Heron is June, with an average of 16h and 0min of daylight.
When is the highest UV index in Heron?
July is the month with the highest UV index, with an average maximum UV index of 6.
What month is the hottest in Heron?
August proves to be the warmest month, recording an average peak temperature of 78.3°F (25.7°C) and a minimum temperature of 49.1°F (9.5°C).
What is the least humid month in Heron?
The least humid month in Heron is August, with an average relative humidity of 52%.
What is the driest month in Heron?
August is the month with the least rainfall. Rain falls for 6.9 days and accumulates 0.55" (14mm) of precipitation.
What month has the most sunshine in Heron?
The month with the most sunshine in Heron, Montana, is August, with an average of 11.8h of sunshine.
What is the coldest month in Heron?
The coldest period is December, when temperatures fluctuate between an average high of 29.3°F (-1.5°C) and a low of 18.7°F (-7.4°C).
What is the rainiest month in Heron?
The month with the most rainfall in Heron is December, when the rain falls for 11.2 days and typically aggregates up to 3.66" (93mm) of precipitation.
What is the month with the shortest days in Heron?
The month with the shortest days in Heron, Montana, is December, with an average of 8h and 24min of daylight.
Average temperature
Heron, MT
The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is December (29.3°F).
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure
Heron, MT
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed
Heron, MT
- Average wind speed in January:
3.6mph - Average wind speed in February:
3.8mph - Average wind speed in March:
4.2mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.3mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.9mph - Average wind speed in September:
3.9mph - Average wind speed in October:
3.8mph - Average wind speed in November:
3.8mph - Average wind speed in December:
3.5mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity
Heron, MT
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (52%).
Average rainfall
Heron, MT
- Average rainfall in January:
3.54" - Average rainfall in February:
2.36" - Average rainfall in March:
3.11" - Average rainfall in April:
2.52" - Average rainfall in May:
2.4" - Average rainfall in June:
2.13"
- Average rainfall in July:
0.67" - Average rainfall in August:
0.55" - Average rainfall in September:
1.14" - Average rainfall in October:
2.48" - Average rainfall in November:
2.91" - Average rainfall in December:
3.66"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days
Heron, MT
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
11.2 days - Average rainfall days in March:
18.9 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
15.6 days - Average rainfall days in November:
15.5 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.9 days).
Average snowfall
Heron, MT
- Average snowfall in January:
15.87" - Average snowfall in February:
12.2" - Average snowfall in March:
8.03" - Average snowfall in April:
1.97" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (15.87").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Heron, MT
- Average snowfall days in January:
15.9 days - Average snowfall days in February:
16.3 days - Average snowfall days in March:
11.6 days - Average snowfall days in April:
5.2 days - Average snowfall days in May:
0.3 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:
1.6 days - Average snowfall days in November:
10.1 days - Average snowfall days in December:
19.5 days
The month with the highest number of snowfall days is December (19.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Heron, MT
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - 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 1min - Average sunshine in February:
3h and 4min - Average sunshine in March:
4h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 5min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
11h and 3min - Average sunshine in August:
11h and 5min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Heron, MT
- Average sunshine days in January:
10.2 days - Average sunshine days in February:
7.3 days - Average sunshine days in March:
7.1 days - Average sunshine days in April:
7.6 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
20.9 days - Average sunshine days in August:
20.8 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
9.2 days - Average sunshine days in December:
8.4 days
The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is March (7.1 days).
Average UV index
Heron, 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
Heron, MT
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility
Heron, MT
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Heron, Montana, USA
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