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's onset sees an average high-temperature of a moderate 55.9°F (13.3°C), exhibiting a slight fluctuation from the previous month. An average low-temperature of 39.7°F (4.3°C) is recorded in the month of January.Humidity
January and December, with an average relative humidity of 48%, are the most humid months.Rainfall
In Barstow, during January, the rain falls for 4.6 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Barstow, during the entire year, the rain falls for 36.5 days and collects up to 3.11" (79mm) of precipitation.Snowfall
January and November are months with snowfall. January is the first month it typically snows. Throughout January, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 1.3 snowfall days, and 0.47" (12mm) of snow is accumulated.Daylight
In January, the average length of the day is 10h and 8min.On the first day of the month, sunrise is at 6:55 am and sunset at 4:47 pm. On the last day of January, sunrise is at 6:47 am and sunset at 5:15 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 7.1h of sunshine.UV index
The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In January, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - It is urged to ward off sun damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January?
When does it start snowing?
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 long on average sun shines in January?
What is the UV index reading in January in Barstow?
Average temperature in January
Barstow, CA
- Average high temperature in January: 55.9°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in January: 39.7°F
The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is December (38.7°F).
Average pressure in January
Barstow, CA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in January
Barstow, CA
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in January
Barstow, CA
- Average humidity in January: 48%
The months with the highest relative humidity are January and December (48%).
The month with the lowest relative humidity is August (23%).
Average rainfall in January
Barstow, CA
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is December (0.55").
The driest month (with the least rainfall) is June (0").
Average rainfall days in January
Barstow, CA
- Average rainfall days in January: 4.6 days
The month with the highest number of rainy days is December (5.6 days).
The month with the least rainy days is June (0.2 days).
Average snowfall in January
Barstow, CA
- Average snowfall in January: 0.08"
The month with the highest snowfall is November (0.39").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").
Average snowfall days in January
Barstow, CA
- Average snowfall days in January: 0.4 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Barstow, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 7h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in January
Barstow, CA
- Average sunshine days in January: 25.2 days
The month with the most sunshine days is June (29.8 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in January
Barstow, CA
- Average UV index in January: 4
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in January
Barstow, CA
- Average cloud cover in January: 18
The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in January
Barstow, 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).
Barstow, California, USA
Weather forecast for your location
2. Allow the app to use your location