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 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
At the onset of January, San Bernardino records an average high-temperature of a comfortable 62.2°F (16.8°C), showing little deviation from the preceding month. During the January nights, an average temperature of 44.6°F (7°C) is observed in San Bernardino.Humidity
The average relative humidity in January is 48%.Rainfall
In San Bernardino, during January, the rain falls for 5.8 days and regularly aggregates up to 0.91" (23mm) of precipitation. In San Bernardino, during the entire year, the rain falls for 46.6 days and collects up to 6.18" (157mm) of precipitation.Snowfall
January, March through December are months without snowfall in San Bernardino.Daylight
The average length of the day in January in San Bernardino is 10h and 11min.On the first day of January in San Bernardino, sunrise is at 6:54 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 5:18 pm PST.
Sunshine
In San Bernardino, the average sunshine in January is 7h.UV index
In San Bernardino, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in January translates into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in San Bernardino?
What is the average humidity in January in San Bernardino?
How much does it rain in San Bernardino in January?
When it does not snow in San Bernardino?
Does it snow in San Bernardino in January?
How many hours of daylight does San Bernardino have in January?
When is the sunrise / sunset in January in San Bernardino?
How long on average sun shines in January in San Bernardino?
How high is the UV index in January in San Bernardino?
Average temperature in January
San Bernardino, CA
- Average high temperature in January: 62.2°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in January: 44.6°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in January
San Bernardino, 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 (29.85"Hg).
Average wind speed in January
San Bernardino, CA
- Average wind speed in January: 5.3mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in January
San Bernardino, CA
- Average humidity in January: 48%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall in January
San Bernardino, CA
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
San Bernardino, CA
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in January
San Bernardino, 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
San Bernardino, CA
- Average daylight in January: 10h and 1min
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 month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
San Bernardino, CA
- Average sunshine days in January: 24.2 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in January
San Bernardino, CA
- Average UV index in January: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
San Bernardino, CA
- Average cloud cover in January: 19
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
San Bernardino, 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).
San Bernardino, California, USA
Weather forecast for your location
2. Allow the app to use your location