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 onset of January marks an average high-temperature of a chilly 43.3°F (6.3°C), hardly differing from December's 41°F (5°C). Throughout January, the average low-temperature records at a freezing cold 28.8°F (-1.8°C).Humidity
In January, the average relative humidity is 80%.Rainfall
In January, in Callahan, the rain falls for 9.8 days. Throughout January, 3.86" (98mm) of precipitation is accumulated. In Callahan, during the entire year, the rain falls for 107.9 days and collects up to 24.76" (629mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Callahan, during January, snow falls for 8.3 days and regularly aggregates up to 13.9" (353mm) of snow. Throughout the year, there are 47.5 snowfall days, and 57.4" (1458mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 36min.On the first day of January, sunrise is at 7:36 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:25 pm PST.
Sunshine
In January, the average sunshine is 5.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is January cold in Callahan?
What is the average humidity in January in Callahan?
How many days does it rain in January in Callahan?
How many days does it snow in January in Callahan?
How many hours of daylight does Callahan have in January?
When is the sunrise / sunset in January in Callahan?
How many hours of sunshine does Callahan have in January?
What is the month with the lowest UV index in Callahan?
How high is the UV index in January in Callahan?
Average temperature in January
Callahan, CA
- Average high temperature in January: 43.3°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is December (41°F).
- Average low temperature in January: 28.8°F
The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in January
Callahan, CA
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in January
Callahan, CA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in January
Callahan, CA
- Average humidity in January: 80%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (45%).
Average rainfall in January
Callahan, CA
- Average rainfall in January: 3.86"
The wettest month (with the highest rainfall) is March (4.17").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in January
Callahan, CA
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is August (3.1 days).
Average snowfall in January
Callahan, CA
- Average snowfall in January: 13.9"
The month with the highest snowfall is March (14.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Callahan, CA
- Average snowfall days in January: 8.3 days
The month with the highest number of snowfall days is March (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Callahan, CA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Callahan, CA
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in January
Callahan, CA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Callahan, CA
- Average cloud cover in January: 40
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in January
Callahan, CA
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Callahan, California, USA
Weather forecast for your location
2. Allow the app to use your location