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 registers an average high-temperature of a still fresh 54.7°F (12.6°C), slightly varied from December's 52.3°F (11.3°C). In January, the recorded average low-temperature is a wintry 38.7°F (3.7°C).Humidity
In January, the average relative humidity is 72%.Rainfall
In January, the rain falls for 11.6 days. Throughout January, 3.74" (95mm) of precipitation is accumulated. In Glenhaven, during the entire year, the rain falls for 92 days and collects up to 21.02" (534mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The months with the most snowfall are January and February, with an average 0.47" (12mm) of accumulated snow.Daylight
In January, the average length of the day is 9h and 48min.On the first day of January in Glenhaven, sunrise is at 7:29 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:30 pm PST.
Sunshine
In January, the average sunshine is 5.4h.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 health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 in January interprets into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Glenhaven?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Glenhaven have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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
Glenhaven, 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).
Glenhaven, California, USA
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