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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 another subzero cold winter month in Kirby, Montana, with an average temperature varying between 31.8°F (-0.1°C) and 16.2°F (-8.8°C). The arrival of January records an average high-temperature of a still freezing cold 31.8°F (-0.1°C), closely related to the 31.1°F (-0.5°C) observed in December. Weather in January »
Weather in February
February, the last month of the winter in Kirby, is another freezing cold month, with temperature in the range of an average high of 31.6°F (-0.2°C) and an average low of 16.2°F (-8.8°C). The average high-temperature is a still freezing cold 31.6°F (-0.2°C) in February, hardly different from the 31.8°F (-0.1°C) recorded in January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Kirby, Montana, with an average temperature varying between 28.2°F (-2.1°C) and 45°F (7.2°C). With the onset of March, Kirby experiences a temperature shift, with the average high-temperature moving from a subzero cold 31.6°F (-0.2°C) in February to a chilly 45°F (7.2°C). Weather in March »
Weather in April
April in Kirby, Montana, is a fresh spring month, with an average temperature ranging between max 53.1°F (11.7°C) and min 34.2°F (1.2°C). As March gives way to April, the average high-temperature displays a slight ascent, adjusting from a frosty 45°F (7.2°C) to a fresh 53.1°F (11.7°C). Weather in April »
Weather in May
May, the last month of the spring in Kirby, is a refreshing month, with temperature in the range of an average high of 63.7°F (17.6°C) and an average low of 43.5°F (6.4°C). Kirby sees an increase in the average high-temperature with the arrival of May, moving from April's cool 53.1°F (11.7°C) to a refreshing 63.7°F (17.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Kirby, Montana, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 75.7°F (24.3°C). The shift into June is characterized by a rise in the average high-temperature, transitioning from May's comfortable 63.7°F (17.6°C) to a moderately hot 75.7°F (24.3°C). Weather in June »
Weather in July
July, like June, in Kirby, Montana, is a moderately hot summer month, with an average temperature ranging between max 85.5°F (29.7°C) and min 61.5°F (16.4°C). July proves to be the warmest month, recording an average peak temperature of 85.5°F (29.7°C) and a minimum temperature of 61.5°F (16.4°C). In July, the heat index is calculated to be a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Kirby, Montana, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 83.7°F (28.7°C). The onset of August brings an average high-temperature of a still moderately hot 83.7°F (28.7°C), nearly matching the July temperature. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Kirby, Montana, with an average temperature fluctuating between 52.7°F (11.5°C) and 74.1°F (23.4°C). Onset of September witnesses a reduction in the average high-temperature, falling from 83.7°F (28.7°C) in August to a still moderately hot 74.1°F (23.4°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Kirby, Montana, with an average temperature varying between 39°F (3.9°C) and 56.8°F (13.8°C). The start of October is characterized by a significant decrease in the average high-temperature, moving from a warm 74.1°F (23.4°C) in September to a refreshing 56.8°F (13.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Kirby, is also a frosty month, with an average temperature varying between 27.1°F (-2.7°C) and 43.3°F (6.3°C). A shift in Kirby's weather is observed as October turns into November, with the average high temperature reducing from a refreshing 56.8°F (13.8°C) to a frosty 43.3°F (6.3°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Kirby, Montana, with an average temperature varying between 16.7°F (-8.5°C) and 31.1°F (-0.5°C). Kirby's December weather, with an average high temperature of 31.1°F (-0.5°C) and an average low temperature of 16.7°F (-8.5°C), tends to be the coldest of the year. Weather in December »
Updated: Jul 30, 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 are the most humid months?
January and February, with an average relative humidity of 79%, are most humid months.
How many days does it rain?
In Kirby, during the entire year, the rain falls for 127.6 days and collects up to 14.25" (362mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How much does it snow?
Throughout the year, in Kirby, Montana, there are 65.3 snowfall days, and 28.82" (732mm) of snow is accumulated.
When is the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 14.3 days and typically aggregates up to 5.2" (132mm) of snow.
What is the month with the least sunshine?
With an average of 5.7h of sunshine, February has the least sunshine of the year.
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?
May is the month with the most rainfall in Kirby. Rain falls for 18 days and accumulates 2.64" (67mm) of precipitation.
When it does not snow?
In Kirby, snow does not fall in June through August.
When are the longest days?
With an average of 15h and 36min of daylight, June has the longest days of the year.
What is the warmest month?
In Kirby, July records the average highest temperatures, peaking at 85.5°F (29.7°C) and reaching a low of 61.5°F (16.4°C).
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 11.9h of sunshine.
When is the highest UV index?
With an average maximum UV index of 7, July is the month with the highest UV index.
What is the least humid month?
The least humid month is August, with an average relative humidity of 40%.
What part of the year is the coldest?
Kirby's December weather, marked by an average high temperature of 31.1°F (-0.5°C) and an average low temperature of 16.7°F (-8.5°C), is the coldest in the year.
What is the driest month?
December is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.67" (17mm) of precipitation.
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
Kirby, MT
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (31.1°F).
The month with the highest average low temperature is July (61.5°F).
The coldest months (with the lowest average low temperature) are January and February (16.2°F).
Average pressure
Kirby, MT
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Kirby, MT
- Average wind speed in January:
7.4mph - Average wind speed in February:
7mph - Average wind speed in March:
7.6mph - Average wind speed in April:
9.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
7mph - Average wind speed in September:
7.6mph - Average wind speed in October:
8.3mph - Average wind speed in November:
7mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and December (6.8mph).
Average humidity
Kirby, MT
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).
Average rainfall
Kirby, MT
- Average rainfall in January:
0.75" - Average rainfall in February:
0.83" - Average rainfall in March:
1.14" - Average rainfall in April:
2.01" - Average rainfall in May:
2.64" - Average rainfall in June:
1.46"
- Average rainfall in July:
1.14" - Average rainfall in August:
1.1" - Average rainfall in September:
0.83" - Average rainfall in October:
0.94" - Average rainfall in November:
0.75" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days
Kirby, MT
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
7.7 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
10.7 days - Average rainfall days in August:
11.6 days - Average rainfall days in September:
8.6 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Kirby, MT
- Average snowfall in January:
4.45" - Average snowfall in February:
5.2" - Average snowfall in March:
4.29" - Average snowfall in April:
5.08" - Average snowfall in May:
0.87" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Kirby, MT
- Average snowfall days in January:
12 days - Average snowfall days in February:
14.3 days - Average snowfall days in March:
9.5 days - Average snowfall days in April:
6.3 days - Average snowfall days in May:
1.3 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:
0.2 days - Average snowfall days in October:
2.8 days - Average snowfall days in November:
7.7 days - Average snowfall days in December:
11.2 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Kirby, 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 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - 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 1min - Average sunshine in February:
5h and 4min - Average sunshine in March:
8h and 1min - Average sunshine in April:
9h and 5min - 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 5min - Average sunshine in September:
10h and 5min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days
Kirby, MT
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
12 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
9.6 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is May (9.6 days).
Average UV index
Kirby, MT
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Kirby, MT
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility
Kirby, 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).
Kirby, Montana, USA
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