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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 in Joliet, Montana, is a wintry winter month, with an average temperature varying between 18.7°F (-7.4°C) and 32°F (0°C). Joliet's January reports an average high-temperature of a wintry 32°F (0°C), exhibiting a minor difference from December. Weather in January »
Weather in February
February, the last month of the winter in Joliet, is also an icy month, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 32.4°F (0.2°C). Joliet notes an average high-temperature of a still wintry 32.4°F (0.2°C) in February, hardly diverging from January. Weather in February »
Weather in March
March, the first month of the spring in Joliet, is a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 27.5°F (-2.5°C). The start of March is characterized by an increase in the average high-temperature, transitioning from a wintry 32.4°F (0.2°C) in February to a chilly 43.5°F (6.4°C). Weather in March »
Weather in April
April in Joliet, Montana, is a cool spring month, with temperature in the range of an average high of 51.3°F (10.7°C) and an average low of 33.3°F (0.7°C). April's onset is marked by a subtle temperature increase, moving from a frosty 43.5°F (6.4°C) in March to a cool 51.3°F (10.7°C). Weather in April »
Weather in May
May, the last month of the spring in Joliet, is a comfortable month, with temperature in the range of an average low of 41.4°F (5.2°C) and an average high of 61°F (16.1°C). As Joliet transitions into May, the average high-temperature shows a change, moving from a cool 51.3°F (10.7°C) in April to a comfortable 61°F (16.1°C). Weather in May »
Weather in June
June, the first month of the summer in Joliet, is an agreeable month, with an average temperature varying between 49.6°F (9.8°C) and 72.7°F (22.6°C). The onset of June brings a rise in the average high-temperature, elevating from an enjoyable 61°F (16.1°C) in May to a pleasant 72.7°F (22.6°C). Weather in June »
Weather in July
July is a moderately hot summer month in Joliet, Montana, with an average temperature varying between 82.9°F (28.3°C) and 57.2°F (14°C). Joliet experiences its highest temperatures in July, with an average peak of 82.9°F (28.3°C) and a low of 57.2°F (14°C). In July, the average heat index is calculated to be 82.4°F (28°C). Weather in July »
Weather in August
August, the last month of the summer in Joliet, is another warm month, with an average temperature fluctuating between 81.1°F (27.3°C) and 57.2°F (14°C). The initiation of August sees an average high-temperature of a still moderately hot 81.1°F (27.3°C), showing minor variations from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Joliet, is also an agreeable month, with an average temperature fluctuating between 50.2°F (10.1°C) and 72°F (22.2°C). September's onset brings a reduction in the average high-temperature, from a moderately hot 81.1°F (27.3°C) in August to a pleasant 72°F (22.2°C). Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Joliet, Montana, with an average temperature ranging between min 37.9°F (3.3°C) and max 55.2°F (12.9°C). The arrival of October is marked by a notable decrease in high-temperatures, falling from a pleasant 72°F (22.2°C) in September to a fresh 55.2°F (12.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Joliet, Montana, with an average temperature ranging between min 26.8°F (-2.9°C) and max 41.9°F (5.5°C). The arrival of November corresponds with a shift in temperature, down from a cool 55.2°F (12.9°C) in October to an icy 41.9°F (5.5°C). Weather in November »
Weather in December
December, the first month of the winter in Joliet, is also a subzero cold month, with an average temperature ranging between min 17.4°F (-8.1°C) and max 30.7°F (-0.7°C). Joliet experiences its lowest temperatures in December, with an average peak of 30.7°F (-0.7°C) and a low of 17.4°F (-8.1°C). Weather in December »
Updated: Jun 24, 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 in Joliet?
January is the most humid month, with an average relative humidity of 76%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.51" (13mm) of precipitation.
How many days does it rain?
In Joliet, during the entire year, the rain falls for 108.1 days and collects up to 12.83" (326mm) of precipitation.
When does it snow?
Months with snowfall in Joliet are January through June, September through December.
How many days does it snow?
In Joliet, during the entire year, snow falls for 61.5 days and aggregates up to 41.77" (1061mm) of snow.
What are the months with the lowest UV index in Joliet?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 10.8 days and typically aggregates up to 6.81" (173mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 6.2h 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 wettest month?
The month with the most rainfall is May, when the rain falls for 16.3 days and typically aggregates up to 2.09" (53mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 15h and 36min of daylight.
What is the warmest month?
July is the month when Joliet's temperatures reach their peak, with averages of 82.9°F (28.3°C) and lows of 57.2°F (14°C).
When it does not snow?
July and August are months without snowfall in Joliet.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.9h of sunshine.
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?
The least humid month is August, with an average relative humidity of 41%.
What month is the coldest?
December, with an average high of 30.7°F (-0.7°C) and a low of 17.4°F (-8.1°C), signifies the coldest month of the year.
What is the month with the shortest days?
With an average of 8h and 48min of daylight, December has the shortest days of the year.
Average temperature
Joliet, MT
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure
Joliet, MT
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"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:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Joliet, MT
- Average wind speed in January:
8.7mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.9mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Joliet, MT
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Joliet, MT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.87" - Average rainfall in March:
1.1" - Average rainfall in April:
1.73" - Average rainfall in May:
2.09" - Average rainfall in June:
1.61"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.75" - Average rainfall in September:
0.79" - Average rainfall in October:
1.1" - Average rainfall in November:
0.83" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days
Joliet, MT
- Average rainfall days in January:
6 days - Average rainfall days in February:
4 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
13 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
9.4 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
8 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall
Joliet, MT
- Average snowfall in January:
3.58" - Average snowfall in February:
6.81" - Average snowfall in March:
5.91" - Average snowfall in April:
6.18" - Average snowfall in May:
2.83" - Average snowfall in June:
0.12"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days
Joliet, MT
- Average snowfall days in January:
9.9 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
8.5 days - Average snowfall days in April:
6.6 days - Average snowfall days in May:
2.4 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:
0.8 days - Average snowfall days in October:
4.6 days - Average snowfall days in November:
8.2 days - Average snowfall days in December:
9.6 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Joliet, MT
- Average daylight in January:
9h and 1min - 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:
14h and 5min - Average daylight in June:
15h and 4min
- 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 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
6h and 1min - Average sunshine in March:
8h and 2min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 3min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 4min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days
Joliet, MT
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index
Joliet, 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
Joliet, MT
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Joliet, 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).
Joliet, Montana, USA
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