January weather forecastSouthglenn, CO
January
Weather in January
January, the same as December, is another cold winter month in Southglenn, Colorado, with an average temperature ranging between min 22.1°F (-5.5°C) and max 42.1°F (5.6°C).Temperature
As January takes its course, Southglenn's average high-temperature registers at a still icy 42.1°F (5.6°C), closely aligning with the preceding month. Southglenn temperatures generally rest at a low of 22.1°F (-5.5°C) during the January nights.Humidity
In January, the average relative humidity is 63%.Rainfall
January and December are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 0.08" (2mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Southglenn, in January, snow falls for 3.1 days, with typically accumulated 0.67" (17mm) of snow. Throughout the year, in Southglenn, Colorado, there are 21 snowfall days, and 7.91" (201mm) of snow is accumulated.Daylight
In Southglenn, the average length of the day in January is 9h and 45min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:18 pm MST.
Sunshine
In January, the average sunshine in Southglenn, Colorado, is 7.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Southglenn, CO
- Average high temperature in January: 42.1°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (41°F).
- Average low temperature in January: 22.1°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is December (21°F).
Average pressure in January
Southglenn, CO
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in January
Southglenn, CO
- Average wind speed in January: 6.4mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest months (with the lowest average wind speed) are August, September and December (6.2mph).
Average humidity in January
Southglenn, CO
- Average humidity in January: 63%
The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June and August (41%).
Average rainfall in January
Southglenn, CO
- Average rainfall in January: 0.08"
The wettest month (with the highest rainfall) is July (0.51").
The driest months (with the least rainfall) are January and December (0.08").
Average rainfall days in January
Southglenn, CO
- Average rainfall days in January: 2.3 days
The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in January
Southglenn, CO
- Average snowfall in January: 0.67"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Southglenn, CO
- Average snowfall days in January: 3.1 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Southglenn, CO
- Average daylight in January: 9h and 48min
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: 7h and 6min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in January
Southglenn, CO
- Average sunshine days in January: 27.5 days
The month with the most sunshine days is December (28.3 days).
The month with the least sunshine days is July (19.7 days).
Average UV index in January
Southglenn, CO
- Average UV index in January: 2
The months with the highest UV index are June, 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
Southglenn, CO
- Average cloud cover in January: 20
The month with the most cloud cover is April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in January
Southglenn, CO
- 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).





