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
Challenge marks the arrival of January with an average high-temperature of a still fresh 54.7°F (12.6°C), hardly different from December's 52.5°F (11.4°C). Challenge reports a consistent average low-temperature of 39.7°F (4.3°C) throughout January nights.Humidity
In Challenge, the average relative humidity in January is 69%.Rainfall
In January, the rain falls for 10.3 days. Throughout January, 4.49" (114mm) of precipitation is accumulated. Throughout the year, there are 88.4 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
In Challenge, snow does not fall in January, March through October.Daylight
In Challenge, California, the average length of the day in January is 9h and 46min.On the first day of January, sunrise is at 7:25 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:23 pm PST.
Sunshine
In Challenge, the average sunshine in January is 5.8h.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 vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In January, the average maximum UV index of 3 translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
When it does not snow?
Does it snow in January?
How many hours of daylight does Challenge have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index reading in January in Challenge?
Average temperature in January
Challenge, CA
- Average high temperature in January: 54.7°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in January: 39.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in January
Challenge, CA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Challenge, CA
- Average wind speed in January: 5.9mph
The windiest months (with the highest average wind speed) are February, March and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Challenge, CA
- Average humidity in January: 69%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (34%).
Average rainfall in January
Challenge, CA
- Average rainfall in January: 4.49"
The wettest month (with the highest rainfall) is March (6.02").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in January
Challenge, CA
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is July (1.4 days).
Average snowfall in January
Challenge, CA
- Average snowfall in January: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").
Average snowfall days in January
Challenge, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Challenge, 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: 5h and 5min
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 42min).
Average sunshine days in January
Challenge, CA
- Average sunshine days in January: 19.2 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.5 days).
Average UV index in January
Challenge, 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
Challenge, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Challenge, 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).
Challenge, California, USA
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