January weather forecastCentennial, WY
January
Weather in January
January, the same as December, in Centennial, Wyoming, is another subzero cold winter month, with an average temperature ranging between max 28.9°F (-1.7°C) and min 14.7°F (-9.6°C).Temperature
During January, Centennial observes a subtle ascent to a still freezing cold 28.9°F (-1.7°C) from December's 28.2°F (-2.1°C) in the average high-temperature. In January, Centennial encounters an average low-temperature of 14.7°F (-9.6°C) during the night.Humidity
The average relative humidity in January in Centennial is 75%.Rainfall
January is the month with the least rainfall. Rain falls for 5.5 days and accumulates 0.51" (13mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In January, it is snowing for 11.1 days. Throughout January, 3.46" (88mm) of snow is accumulated. In Centennial, during the entire year, snow falls for 89 days and aggregates up to 49.8" (1265mm) of snow.Daylight
In January, the average length of the day in Centennial, Wyoming, is 9h and 36min.On the first day of January, sunrise is at 7:30 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:19 pm MST.
Sunshine
The average sunshine in January in Centennial is 6.8h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Centennial. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during January translates into the following guidance:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Centennial, WY
- Average high temperature in January: 28.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in January: 14.7°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).
Average pressure in January
Centennial, WY
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Centennial, WY
- Average wind speed in January: 14.1mph
The windiest month (with the highest average wind speed) is January (14.1mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in January
Centennial, WY
- Average humidity in January: 75%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (43%).
Average rainfall in January
Centennial, WY
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Centennial, WY
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (4 days).
Average snowfall in January
Centennial, WY
- Average snowfall in January: 3.46"
The month with the highest snowfall is April (9.84").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Centennial, WY
- Average snowfall days in January: 11.1 days
The month with the highest number of snowfall days is April (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Centennial, 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 month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in January
Centennial, WY
- Average sunshine days in January: 19.4 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is May (9 days).
Average UV index in January
Centennial, WY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Centennial, WY
- Average cloud cover in January: 28
The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in January
Centennial, 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).
