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
January's average high-temperature stands at a still cool 54.7°F (12.6°C), showing little deviation from December's 52.3°F (11.3°C). In Upper Lake, January nights cool down to an average of 38.7°F (3.7°C).Humidity
The average relative humidity in January is 72%.Rainfall
In Upper Lake, during January, the rain falls for 11.6 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, there are 92 rainfall days, and 21.02" (534mm) of precipitation is accumulated.Snowfall
Months with snowfall in Upper Lake, California, are January through March, November and December. The months with the most snowfall are January and February, with an average 0.47" (12mm) of accumulated snow.Daylight
In Upper Lake, California, the average length of the day in January is 9h and 47min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:59 pm. On the last day of January, in Upper Lake, sunrise is at 7:19 am and sunset at 5:30 pm PST.
Sunshine
In Upper Lake, the average sunshine in January is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Upper Lake. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 in January translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What are the temperatures in Upper Lake in January?
What is the average humidity in January in Upper Lake?
How many days does it rain in January in Upper Lake?
When does it snow the most in Upper Lake?
How much does it snow in Upper Lake in January?
How many hours of daylight does Upper Lake have in January?
When are sunrise and sunset in January in Upper Lake?
How long on average sun shines in January in Upper Lake?
What is the month with the lowest UV index in Upper Lake?
What is the UV index reading in January in Upper Lake?
Average temperature in January
Upper Lake, CA
- Average high temperature in January: 54.7°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (52.3°F).
- Average low temperature in January: 38.7°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in January
Upper Lake, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in January
Upper Lake, CA
- Average wind speed in January: 4.5mph
The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is November (4.1mph).
Average humidity in January
Upper Lake, CA
- Average humidity in January: 72%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (47%).
Average rainfall in January
Upper Lake, CA
- Average rainfall in January: 3.74"
The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in January
Upper Lake, CA
- Average rainfall days in January: 11.6 days
The month with the highest number of rainy days is March (15.9 days).
The months with the least rainy days are July and August (1.3 days).
Average snowfall in January
Upper Lake, CA
- Average snowfall in January: 0.47"
The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Upper Lake, CA
- Average snowfall days in January: 0.2 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Upper Lake, 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 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Upper Lake, CA
- Average sunshine days in January: 18 days
The months with the most sunshine days are July and August (28.3 days).
The month with the least sunshine days is March (13.7 days).
Average UV index in January
Upper Lake, 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
Upper Lake, CA
- Average cloud cover in January: 41
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in January
Upper Lake, CA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are March and December (5mi).
Upper Lake, California, USA
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