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
In the transition from December to January, Riverside reports an average high-temperature of a still subzero cold 21.9°F (-5.6°C), indicating a close resemblance to the prior month. During January, the average low-temperature is a frigid cold 6.1°F (-14.4°C).Humidity
In January, the average relative humidity is 94%.Rainfall
In Riverside, during January, the rain falls for 2.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 109.2 rainfall days, and 23.15" (588mm) of precipitation is accumulated.Snowfall
January through July, September through December are months with snowfall. In January, it is snowing for 22.8 days. Throughout January, 17.36" (441mm) of snow is accumulated. Throughout the year, in Riverside, there are 159.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.Daylight
In Riverside, the average length of the day in January is 9h and 17min.On the first day of the month, sunrise is at 8:01 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:44 am and sunset at 5:30 pm MST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 3.3h of sunshine.UV index
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: During January, 1 as the daily maximum UV index converts into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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?
How many days does it rain in January?
How many days does it snow in January in Riverside?
How many hours of daylight does Riverside have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Riverside have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Riverside, MT
- Average high temperature in January: 21.9°F
The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).
- Average low temperature in January: 6.1°F
The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).
Average pressure in January
Riverside, 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
Riverside, MT
- Average wind speed in January: 6.2mph
The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Riverside, MT
- Average humidity in January: 94%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).
Average rainfall in January
Riverside, MT
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in January
Riverside, MT
- Average rainfall days in January: 2.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in January
Riverside, MT
- Average snowfall in January: 17.36"
The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").
Average snowfall days in January
Riverside, MT
- Average snowfall days in January: 22.8 days
The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in January /
Average sunshine in January
Riverside, MT
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).
Average sunshine days in January
Riverside, MT
- Average sunshine days in January: 8.6 days
The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in January
Riverside, MT
- Average UV index in January: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in January
Riverside, MT
- Average cloud cover in January: 71
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in January
Riverside, MT
- Average visibility in January: 3mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).
Riverside, Montana, USA
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