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
As January takes hold, the average high-temperature is a still cold 40.3°F (4.6°C), nearly mirroring that of the previous month. During January, Louisville's temperature falls to a steady low-temperature average of 21.6°F (-5.8°C).Humidity
In Louisville, the average relative humidity in January is 64%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 0.16" (4mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Louisville, Colorado, during January, snow falls for 5.8 days and regularly aggregates up to 1.1" (28mm) of snow. In Louisville, during the entire year, snow falls for 36.7 days and aggregates up to 13.98" (355mm) of snow.Daylight
The average length of the day in January in Louisville is 9h and 43min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:45 pm. On the last day of January, in Louisville, sunrise is at 7:09 am and sunset at 5:17 pm MST.
Sunshine
In Louisville, the average sunshine in January is 7h.UV index
The months with the lowest UV index in Louisville are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is January cold in Louisville?
What is the average humidity in January in Louisville?
What is the driest month in Louisville?
How many days does it rain in January in Louisville?
How many days does it snow in January in Louisville?
What is the average length of the day in January in Louisville?
What time are sunrise and sunset in January in Louisville?
How many hours of sunshine does Louisville have in January?
What are the months with the lowest UV index in Louisville?
What is the UV index reading in January in Louisville?
Average temperature in January
Louisville, CO
- Average high temperature in January: 40.3°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).
Average pressure in January
Louisville, 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
Louisville, CO
- Average wind speed in January: 6.3mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in January
Louisville, CO
- Average humidity in January: 64%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in January
Louisville, CO
- Average rainfall in January: 0.16"
The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in January
Louisville, CO
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in January
Louisville, CO
- Average snowfall in January: 1.1"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Louisville, CO
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Louisville, CO
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 7h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in January
Louisville, CO
- Average sunshine days in January: 23.6 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in January
Louisville, CO
- Average UV index in January: 2
The months with the highest UV index are 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
Louisville, CO
- Average cloud cover in January: 21
The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in January
Louisville, 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).
Louisville, Colorado, USA
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