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
The shift from December to January is characterized by an average high-temperature of a still refreshing 57.7°F (14.3°C), not significantly different from the 56.3°F (13.5°C) of December. During the nights in January, Jenner observes an average low-temperature of 42.3°F (5.7°C).Humidity
In Jenner, California, the average relative humidity in January is 75%.Rainfall
In Jenner, in January, during 8.1 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Jenner, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.Daylight
In Jenner, the average length of the day in January is 9h and 51min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:33 pm PST.
Sunshine
In January, the average sunshine is 5.6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 3 in January translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
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 are sunrise and 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
Jenner, CA
- Average high temperature in January: 57.7°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in January: 42.3°F
The months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in January
Jenner, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in January
Jenner, CA
- Average wind speed in January: 5.3mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).
Average humidity in January
Jenner, CA
- Average humidity in January: 75%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall in January
Jenner, CA
- Average rainfall in January: 1.97"
The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Jenner, CA
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in January /
Average sunshine in January
Jenner, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Jenner, CA
- Average sunshine days in January: 22 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).
Average UV index in January
Jenner, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Jenner, CA
- Average cloud cover in January: 38
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in January
Jenner, 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).
Jenner, California, USA
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