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 start of January sees the average high-temperature at a refreshing 55.9°F (13.3°C), showing little difference from December's 55°F (12.8°C). Walnut Grove encounters a steady low-temperature average of 41.5°F (5.3°C) throughout the month of January.Humidity
January and March, with an average relative humidity of 74%, are the most humid months.Rainfall
In Walnut Grove, in January, during 8.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Walnut Grove, there are 68.7 rainfall days, and 11.18" (284mm) of precipitation is accumulated.Daylight
The average length of the day in January in Walnut Grove is 9h and 52min.On the first day of January in Walnut Grove, California, sunrise is at 7:22 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:27 pm PST.
Sunshine
In January, the average sunshine is 6.1h.UV index
The months with the lowest UV index in Walnut Grove 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 unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 3 translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Walnut Grove?
What is the most humid month in Walnut Grove?
What is the average humidity in January in Walnut Grove?
How many days does it rain in January in Walnut Grove?
How many hours of daylight does Walnut Grove have in January?
What time are sunrise and sunset in January in Walnut Grove?
How long on average sun shines in January in Walnut Grove?
When is the lowest UV index in Walnut Grove?
What is the UV index reading in January in Walnut Grove?
Average temperature in January
Walnut Grove, CA
- Average high temperature in January: 55.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in January: 41.5°F
The month with the highest average low temperature is September (58.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in January
Walnut Grove, 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 (29.91"Hg).
Average wind speed in January
Walnut Grove, CA
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in January
Walnut Grove, CA
- Average humidity in January: 74%
The months with the highest relative humidity are January and March (74%).
The month with the lowest relative humidity is September (49%).
Average rainfall in January
Walnut Grove, CA
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is February (2.17").
The driest month (with the least rainfall) is August (0").
Average rainfall days in January
Walnut Grove, CA
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (0.7 days).
Average daylight in January /
Average sunshine in January
Walnut Grove, 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 36min).
- Average sunshine in January: 6h and 1min
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 54min).
Average sunshine days in January
Walnut Grove, CA
- Average sunshine days in January: 21.1 days
The month with the most sunshine days is August (29.9 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in January
Walnut Grove, 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
Walnut Grove, CA
- Average cloud cover in January: 34
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Walnut Grove, 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).
Walnut Grove, California, USA
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