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 advent of January presents an average high-temperature of a still subzero cold 27.9°F (-2.3°C), maintaining a close correlation with the preceding month. January generally records an average low-temperature of 12.2°F (-11°C).Humidity
In January, the average relative humidity is 85%.Rainfall
January is the month with the least rainfall. Rain falls for 8 days and accumulates 0.51" (13mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In January, it is snowing for 13 days. Throughout January, 3.74" (95mm) of snow is accumulated. Throughout the year, there are 81.2 snowfall days, and 29.76" (756mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 13min.On the first day of the month, sunrise is at 8:09 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:52 am and sunset at 5:35 pm MST.
Sunshine
In January, the average sunshine is 6.2h.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January in Dillon?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Dillon have in January?
What is the UV index reading in January?
Average temperature in January
Dillon, MT
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in January: 12.2°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (10.6°F).
Average pressure in January
Dillon, MT
- Average pressure in January: 30.24"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Dillon, MT
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is November (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Dillon, MT
- Average humidity in January: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in January
Dillon, MT
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Dillon, MT
- Average rainfall days in January: 8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in January
Dillon, MT
- Average snowfall in January: 3.74"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Dillon, MT
- Average snowfall days in January: 13 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Dillon, 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 month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in January
Dillon, MT
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is July (18.2 days).
The month with the least sunshine days is April (10.1 days).
Average UV index in January
Dillon, MT
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Dillon, MT
- Average cloud cover in January: 38
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in January
Dillon, MT
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Dillon, Montana, USA
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