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 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
The advent of January signifies a minor shift to an average high-temperature of a cool 51.3°F (10.7°C), aligning closely with December. Foresthill's average low-temperature in the month of January is recorded at an icy 35.6°F (2°C).Humidity
In Foresthill, the average relative humidity in January is 70%.Rainfall
In Foresthill, California, during January, the rain falls for 10.2 days and regularly aggregates up to 5.83" (148mm) of precipitation. Throughout the year, there are 85.5 rainfall days, and 35.94" (913mm) of precipitation is accumulated.Snowfall
Months with snowfall in Foresthill are January through May, November and December. In Foresthill, during January, snow falls for 3.9 days and regularly aggregates up to 8.58" (218mm) of snow. In Foresthill, during the entire year, snow falls for 22.8 days and aggregates up to 56.06" (1424mm) of snow.Daylight
In Foresthill, the average length of the day in January is 9h and 48min.On the first day of January, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:22 pm PST.
Sunshine
With an average of 5.7h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January in Foresthill is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in January interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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 much does it rain in Foresthill in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine in Foresthill?
How many hours of sunshine does Foresthill have in January?
What is the UV index intensity in January?
Average temperature in January
Foresthill, CA
- Average high temperature in January: 51.3°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in January: 35.6°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in January
Foresthill, CA
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Foresthill, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Foresthill, CA
- Average humidity in January: 70%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is July (38%).
Average rainfall in January
Foresthill, CA
- Average rainfall in January: 5.83"
The wettest month (with the highest rainfall) is March (7.01").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in January
Foresthill, CA
- Average rainfall days in January: 10.2 days
The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is July (1.4 days).
Average snowfall in January
Foresthill, CA
- Average snowfall in January: 8.58"
The month with the highest snowfall is March (17.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Foresthill, CA
- Average snowfall days in January: 3.9 days
The month with the highest number of snowfall days is March (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Foresthill, 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 30min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in January
Foresthill, CA
- Average sunshine days in January: 19 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.5 days).
Average UV index in January
Foresthill, 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 February, November and December (UV index 2).
Average cloud cover in January
Foresthill, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in January
Foresthill, 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).
Foresthill, California, USA
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