Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, having an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 9.3°F (-12.6°C), is the coldest month.Humidity
With an average relative humidity of 82%, January is the most humid month.Rainfall
In San Luis, during January, the rain falls for 3.2 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 72.2 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In San Luis, during January, snow falls for 9.3 days and regularly aggregates up to 3.7" (94mm) of snow. Throughout the year, there are 57.6 snowfall days, and 28.58" (726mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 57min.On the first day of January, sunrise is at 7:15 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:24 pm MST.
Sunshine
January has the least sunshine of the year, with an average of 6.5h of sunshine.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during January leads to these advisories:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in San Luis in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January in San Luis?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does San Luis have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
San Luis, CO
- Average high temperature in January: 30.6°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in January: 9.3°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in January
San Luis, CO
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).
Average wind speed in January
San Luis, CO
- Average wind speed in January: 5.6mph
The windiest months (with the highest average wind speed) are April and May (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in January
San Luis, CO
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (38%).
Average rainfall in January
San Luis, CO
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is November (0.43").
Average rainfall days in January
San Luis, CO
- Average rainfall days in January: 3.2 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (1.3 days).
Average snowfall in January
San Luis, CO
- Average snowfall in January: 3.7"
The month with the highest snowfall is March (5.55").
The months with the least snowfall are July and August (0").
Average snowfall days in January
San Luis, CO
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
San Luis, CO
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 6h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in January
San Luis, CO
- Average sunshine days in January: 21.4 days
The month with the most sunshine days is October (24.1 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in January
San Luis, CO
- 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, October, November and December (UV index 2).
Average cloud cover in January
San Luis, 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 October (Cloud cover 14).
Average visibility in January
San Luis, CO
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
San Luis, Colorado, USA
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