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
The coldest temperatures occur during January, when averages reach a peak of 35.1°F (1.7°C) and a low of 19.8°F (-6.8°C).Humidity
The most humid month in Lewis is January, with an average relative humidity of 73%.Rainfall
The wettest months in Lewis are January and December, with an average 1.26" (32mm) of rainfall.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 8.5 days and accumulates 8.11" (206mm) of snow.Daylight
In January, the average length of the day in Lewis is 9h and 56min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:37 pm MST.
Sunshine
January and December, with an average of 6.5h of sunshine, are months with the least sunshine in Lewis.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lewis. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 2 in January transforms into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To guard against the harmful effects of the Sun, minimize exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Lewis?
How cold is it in Lewis in January?
What is the most humid month in Lewis?
What is the average humidity in January in Lewis?
What is the rainiest month in Lewis?
How much does it rain in Lewis in January?
What is the snowiest month in Lewis?
How much does it snow in Lewis in January?
How many hours of daylight does Lewis have in January?
What time are sunrise and sunset in January in Lewis?
What is the month with the least sunshine in Lewis?
How many hours of sunshine does Lewis have in January?
When is the lowest UV index in Lewis?
How high is the UV index in January in Lewis?
Average temperature in January
Lewis, CO
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
Lewis, CO
- Average pressure in January: 30.23"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Lewis, CO
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in January
Lewis, CO
- Average humidity in January: 73%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).
Average rainfall in January
Lewis, CO
- Average rainfall in January: 1.26"
The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in January
Lewis, CO
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).
Average snowfall in January
Lewis, CO
- Average snowfall in January: 8.11"
The month with the highest snowfall is January (8.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Lewis, CO
- Average snowfall days in January: 8.5 days
The months with the highest number of snowfall days are January and December (8.5 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
Lewis, CO
- Average daylight in January: 9h and 5min
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 36min).
- Average sunshine in January: 6h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 30min).
Average sunshine days in January
Lewis, CO
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).
Average UV index in January
Lewis, 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
Lewis, CO
- Average cloud cover in January: 27
The months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in January
Lewis, 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).
Lewis, Colorado, USA
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