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 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
Whittier notes an average high-temperature of a still enjoyable 67.1°F (19.5°C) in January, hardly diverging from December. Throughout January, Whittier witnesses a consistent average low-temperature of 50.5°F (10.3°C).Humidity
The average relative humidity in January in Whittier is 51%.Rainfall
In Whittier, during January, the rain falls for 4.3 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Whittier, during the entire year, the rain falls for 38.2 days and collects up to 5.28" (134mm) of precipitation.Daylight
The average length of the day in January is 10h and 12min.On the first day of January in Whittier, sunrise is at 6:57 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 5:21 pm PST.
Sunshine
The average sunshine in January is 6.8h.UV index
In Whittier, the average daily maximum UV index in January is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in January translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. To protect against the Sun's most potent rays, avoid direct exposure around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Whittier?
What is the average humidity in January in Whittier?
How much does it rain in Whittier in January?
How many hours of daylight does Whittier have in January?
When is the sunrise / sunset in January in Whittier?
How long on average sun shines in January in Whittier?
How high is the UV index in January in Whittier?
Average temperature in January
Whittier, CA
- Average high temperature in January: 67.1°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (64.9°F).
- Average low temperature in January: 50.5°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).
Average pressure in January
Whittier, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Whittier, CA
- Average wind speed in January: 5.4mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity in January
Whittier, CA
- Average humidity in January: 51%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (47%).
Average rainfall in January
Whittier, CA
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Whittier, CA
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is March (5.1 days).
The month with the least rainy days is June (1 days).
Average daylight in January /
Average sunshine in January
Whittier, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in January
Whittier, CA
- Average sunshine days in January: 26.3 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (22.6 days).
Average UV index in January
Whittier, CA
- Average UV index in January: 5
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).
Average cloud cover in January
Whittier, CA
- Average cloud cover in January: 21
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in January
Whittier, 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).
Whittier, California, USA
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