Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
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. During January, the nighttime temperature averages of 16.2°F (-8.8°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 79%.Rainfall
In Kirby, in January, during 6.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 127.6 rainfall days, and 14.25" (362mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Kirby, in January, during 12 snowfall days, 4.45" (113mm) of snow is typically accumulated. Throughout the year, in Kirby, there are 65.3 snowfall days, and 28.82" (732mm) of snow is accumulated.Daylight
In Kirby, Montana, the average length of the day in January is 9h and 13min.On the first day of the month, sunrise is at 7:47 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:12 pm MST.
Sunshine
The average sunshine in January is 6.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in January translates into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Kirby?
How many hours of sunshine does Kirby have in January?
When is the lowest UV index in Kirby?
How high is the UV index in January?
Average temperature in January
Kirby, MT
- Average high temperature in January: 31.8°F
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).
- Average low temperature in January: 16.2°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 in January
Kirby, MT
- Average pressure in January: 30.13"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 in January
Kirby, MT
- Average wind speed in January: 7.4mph
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 in January
Kirby, MT
- Average humidity in January: 79%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).
Average rainfall in January
Kirby, MT
- Average rainfall in January: 0.75"
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 in January
Kirby, MT
- Average rainfall days in January: 6.3 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 in January
Kirby, MT
- Average snowfall in January: 4.45"
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 in January
Kirby, MT
- Average snowfall days in January: 12 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 in January /
Average sunshine in January
Kirby, MT
- Average daylight in January: 9h and 1min
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
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 in January
Kirby, MT
- Average sunshine days in January: 15.3 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 in January
Kirby, MT
- Average UV index in January: 2
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 in January
Kirby, MT
- Average cloud cover in January: 36
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 in January
Kirby, MT
- Average visibility in January: 6mi
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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