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
With the transition into January, Stonyford notes an average high-temperature of a moderate 55.4°F (13°C), closely resembling December. Stonyford, during the month of January, experiences an average low-temperature of 40.8°F (4.9°C).Humidity
In January, the average relative humidity is 67%.Rainfall
In Stonyford, in January, it is raining for 8.5 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Stonyford, there are 71.4 rainfall days, and 14.02" (356mm) of precipitation is accumulated.Daylight
In January, the average length of the day is 9h and 46min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:28 pm PST.
Sunshine
The average sunshine in January is 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 estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 3 during January, leads to the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stonyford in January?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January in Stonyford?
When is the sunrise / sunset in January?
How many hours of sunshine does Stonyford have in January?
When is the lowest UV index?
What is the UV index intensity in January in Stonyford?
Average temperature in January
Stonyford, CA
- Average high temperature in January: 55.4°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in January: 40.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in January
Stonyford, CA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).
Average wind speed in January
Stonyford, CA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Stonyford, CA
- Average humidity in January: 67%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are July, August and September (35%).
Average rainfall in January
Stonyford, CA
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is February (2.68").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in January
Stonyford, CA
- Average rainfall days in January: 8.5 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is July (1 days).
Average daylight in January /
Average sunshine in January
Stonyford, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 6h and 0min
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 48min).
Average sunshine days in January
Stonyford, CA
- Average sunshine days in January: 21.6 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (17 days).
Average UV index in January
Stonyford, CA
- Average UV index in January: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Stonyford, CA
- Average cloud cover in January: 33
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Stonyford, 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).
Stonyford, California, USA
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