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 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
San Joaquin's weather, upon January's arrival, documents an average high-temperature of a still refreshing 59°F (15°C), nearly identical to the prior month. San Joaquin throughout January, records an average low-temperature of 43.7°F (6.5°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 66%.Rainfall
In San Joaquin, in January, during 4.9 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 37.2 rainfall days, and 2.48" (63mm) of precipitation is accumulated.Daylight
The average length of the day in January is 10h and 0min.On the first day of the month, sunrise is at 7:12 am and sunset at 4:55 pm. On the last day of January, in San Joaquin, sunrise is at 7:03 am and sunset at 5:25 pm PST.
Sunshine
In San Joaquin, the average sunshine in January is 6.6h.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 3 during January, leads to the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Joaquin in January?
What is the most humid month in San Joaquin?
What is the average humidity in January?
How many days does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
San Joaquin, CA
- Average high temperature in January: 59°F
The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in January: 43.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in January
San Joaquin, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
San Joaquin, CA
- Average wind speed in January: 5.1mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in January
San Joaquin, CA
- Average humidity in January: 66%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in January
San Joaquin, CA
- Average rainfall in January: 0.31"
The wettest months (with the highest rainfall) are February and March (0.43").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in January
San Joaquin, CA
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is March (7 days).
The months with the least rainy days are August and September (0.5 days).
Average daylight in January /
Average sunshine in January
San Joaquin, CA
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 6h and 4min
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 24min).
Average sunshine days in January
San Joaquin, CA
- Average sunshine days in January: 25.5 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is February (22 days).
Average UV index in January
San Joaquin, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in January
San Joaquin, CA
- Average cloud cover in January: 27
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in January
San Joaquin, 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 Joaquin, California, USA
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