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 experiences a subtle adjustment in high-temperatures to a still fresh 54.7°F (12.6°C) with the onset of January, maintaining near parity with December's 52.5°F (11.4°C). The nighttime temperature in Challenge dips to a wintry 39.7°F (4.3°C) on average during January.Humidity
In Challenge, the average relative humidity in January is 69%.Rainfall
In Challenge, during January, the rain falls for 10.3 days and regularly aggregates up to 4.49" (114mm) of precipitation. 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 January, the average length of the day in Challenge is 9h and 46min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:51 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:23 pm PST.
Sunshine
The average sunshine in January is 5.8h.UV index
The months with the lowest UV index in Challenge, California, are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 3 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are January temperatures in Challenge?
What is the average humidity in January in Challenge?
How much does it rain in Challenge in January?
When it does not snow in Challenge?
Does it snow in Challenge in January?
What is the average length of the day in January in Challenge?
When is the sunrise / sunset in January in Challenge?
How long on average sun shines in January in Challenge?
What are the months with the lowest UV index in Challenge?
How high is the UV index 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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