January weather forecastClaremont, CA

January
Weather in January
January, the same as December, is another refreshing winter month in Claremont, California, with an average temperature fluctuating between 47.8°F (8.8°C) and 65.5°F (18.6°C).Temperature
The onset of January brings with it an average high-temperature of a still refreshing 65.5°F (18.6°C), showing a negligible variation from the month before. Throughout the month of January, Claremont witnesses an average temperature of 47.8°F (8.8°C).Humidity
In Claremont, the average relative humidity in January is 49%.Rainfall
In Claremont, during January, the rain falls for 5.3 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Claremont, during the entire year, the rain falls for 48 days and collects up to 7.52" (191mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In Claremont, the average length of the day in January is 10h and 11min.On the first day of January, sunrise is at 6:56 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:19 pm PST.
Sunshine
The average sunshine in January is 7h.UV index
The months with the lowest UV index in Claremont are January, February, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during January morphs into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Claremont, CA
- Average high temperature in January: 65.5°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in January: 47.8°F
The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (46.8°F).
Average pressure in January
Claremont, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Claremont, CA
- Average wind speed in January: 5.2mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in January
Claremont, CA
- Average humidity in January: 49%
The month with the highest relative humidity is May (56%).
The months with the lowest relative humidity are August and November (45%).
Average rainfall in January
Claremont, CA
- Average rainfall in January: 1.22"
The wettest months (with the highest rainfall) are February and December (1.65").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in January
Claremont, CA
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall days in January
Claremont, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Claremont, CA
- Average daylight in January: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 7h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
Claremont, CA
- Average sunshine days in January: 24.7 days
The month with the most sunshine days is June (28.7 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in January
Claremont, CA
- Average UV index in January: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in January
Claremont, CA
- Average cloud cover in January: 20
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in January
Claremont, CA
- 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).





