January weather forecastDillon, CO
January
Weather in January
January in Dillon, Colorado experiences regular snowfall with a monthly accumulation of 8.5" (216mm). This chilly month begins the calendar year with white landscapes, offering a serene, frosty spectacle. The relatively lower sunshine hours contribute to a cooler month, making it perfect for various winter activities. However, without proper winter attire, the temperatures may seem harsh. The outdoor enthusiasts should keep in mind the high possibility of frostbite and hypothermia.Temperature
Shifting into January, Dillon records an average high-temperature of a still freezing cold 23.2°F (-4.9°C), presenting minor fluctuations compared to the previous month. Nightly average temperatures in January reveal a significant dip from daytime highs, registering a consistent an arctic cold 1°F (-17.2°C).Humidity
In January, the average relative humidity is 87%.Rainfall
January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 1.06" (27mm) of precipitation.Snowfall
Months with snowfall are January through December. In Dillon, during January, snow falls for 15.8 days and regularly aggregates up to 8.5" (216mm) of snow. Throughout the year, there are 149 snowfall days, and 108.54" (2757mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 45min.On the first day of January, sunrise is at 7:24 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:22 pm MST.
Sunshine
The average sunshine in January is 5.5h.UV index
The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during January translates into the following guidance:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dillon, CO
- Average high temperature in January: 23.2°F
The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.5°F).
- Average low temperature in January: 1°F
The month with the highest average low temperature is July (39.7°F).
The coldest month (with the lowest average low temperature) is December (0.9°F).
Average pressure in January
Dillon, CO
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in January
Dillon, CO
- Average wind speed in January: 6.7mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Dillon, CO
- Average humidity in January: 87%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (53%).
Average rainfall in January
Dillon, CO
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in January
Dillon, CO
- Average rainfall days in January: 3.4 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (2.8 days).
Average snowfall in January
Dillon, CO
- Average snowfall in January: 8.5"
The month with the highest snowfall is April (18.27").
The month with the least snowfall is July (0.47").
Average snowfall days in January
Dillon, CO
- Average snowfall days in January: 15.8 days
The month with the highest number of snowfall days is April (21 days).
The month with the least snowfall days is July (1.8 days).
Average daylight in January /
Average sunshine in January
Dillon, CO
- Average daylight in January: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in January
Dillon, CO
- Average sunshine days in January: 15.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (5.3 days).
Average UV index in January
Dillon, CO
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in January
Dillon, CO
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 19).
Average visibility in January
Dillon, CO
- Average visibility in January: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
