January weather forecastGrand Junction, CO
January
Weather in January
January in Grand Junction, Colorado sees a mingling of chilly temperatures and moderate humidity. The city experiences the year's coldest temperatures with highest around 34.9°F (1.6°C) and lowest around 18.3°F (-7.6°C). An overall sense of freshness pervades as snowfalls are not uncommon, adding to the overall humidity. Despite cold conditions, the city enjoys an average of 9.8 hours of daylight with 6.3 hours of sunshine. Contrasting greatly with temperatures, January yields the highest atmospheric pressure, promising fair, albeit cold, weather.Temperature
January is the month when Grand Junction experiences its coldest temperatures, averaging a high of 34.9°F (1.6°C) and a low of 18.3°F (-7.6°C).Humidity
The most humid month is January, with an average relative humidity of 78%.Rainfall
In January, the rain falls for 7.3 days. Throughout January, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 93.6 rainfall days, and 8.46" (215mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Grand Junction. In Grand Junction, during January, snow falls for 7.9 days and regularly aggregates up to 2.83" (72mm) of snow. In Grand Junction, during the entire year, snow falls for 28.3 days and aggregates up to 11.5" (292mm) of snow.Daylight
In January, the average length of the day is 9h and 48min.On the first day of the month, sunrise is at 7:33 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:21 am and sunset at 5:33 pm MST.
Sunshine
January has the least sunshine of the year, with an average of 6.3h of sunshine.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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Grand Junction, CO
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in January: 18.3°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in January
Grand Junction, CO
- Average pressure in January: 30.27"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).
Average wind speed in January
Grand Junction, CO
- Average wind speed in January: 4.2mph
The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in January
Grand Junction, CO
- Average humidity in January: 78%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is June (29%).
Average rainfall in January
Grand Junction, CO
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is March (1.06").
The driest month (with the least rainfall) is June (0.51").
Average rainfall days in January
Grand Junction, CO
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is November (5.5 days).
Average snowfall in January
Grand Junction, CO
- Average snowfall in January: 2.83"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Grand Junction, CO
- Average snowfall days in January: 7.9 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grand Junction, 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 30min).
- Average sunshine in January: 6h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in January
Grand Junction, CO
- Average sunshine days in January: 18.5 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in January
Grand Junction, 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
Grand Junction, CO
- Average cloud cover in January: 31
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 11).
Average visibility in January
Grand Junction, CO
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
