January weather forecastHillsdale, WY
January
Weather in January
January, like December, in Hillsdale, Wyoming, is another cold winter month, with an average temperature fluctuating between 22.3°F (-5.4°C) and 36.9°F (2.7°C).Temperature
Transitioning from December to January, Hillsdale observes an average high-temperature of a still icy 36.9°F (2.7°C), differing subtly from the previous month. In Hillsdale, an average temperature of 22.3°F (-5.4°C) is noted during January nights.Humidity
In January, the average relative humidity is 61%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.7 days and typically collects 0.43" (11mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 8.9 days. Throughout January, 2.28" (58mm) of snow is accumulated. Throughout the year, there are 62 snowfall days, and 30.51" (775mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 37min.On the first day of January, sunrise is at 7:23 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:12 pm MST.
Sunshine
In January, the average sunshine is 6.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In January, an average UV index of 2 transforms into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Hillsdale, WY
- Average high temperature in January: 36.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in January
Hillsdale, WY
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Hillsdale, WY
- Average wind speed in January: 14.2mph
The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in January
Hillsdale, WY
- Average humidity in January: 61%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).
Average rainfall in January
Hillsdale, WY
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in January
Hillsdale, WY
- Average rainfall days in January: 4.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in January
Hillsdale, WY
- Average snowfall in January: 2.28"
The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hillsdale, WY
- Average snowfall days in January: 8.9 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Hillsdale, WY
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 6h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in January
Hillsdale, WY
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in January
Hillsdale, WY
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Hillsdale, WY
- Average cloud cover in January: 26
The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in January
Hillsdale, WY
- 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).





