January weather forecastCovina, CA
January
Weather in January
January, the same as December, is another refreshing winter month in Covina, California, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 47.7°F (8.7°C).Temperature
The shift to January signals an average high-temperature of a still refreshing 65.1°F (18.4°C), subtly varied from December's 63.1°F (17.3°C). Covina usually reports an average low-temperature of 47.7°F (8.7°C) during the month of January.Humidity
In Covina, the average relative humidity in January is 50%.Rainfall
In Covina, California, in January, it is raining for 5.1 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 47.3 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Daylight
The average length of the day in January in Covina is 10h and 11min.On the first day of the month, sunrise is at 6:57 am and sunset at 4:52 pm. On the last day of January, in Covina, California, sunrise is at 6:49 am and sunset at 5:20 pm PST.
Sunshine
In January, the average sunshine in Covina, California, is 7h.UV index
In January, the average daily maximum UV index in Covina is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 4 in January leads to these recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Covina, CA
- Average high temperature in January: 65.1°F
The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in January: 47.7°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is February (46.4°F).
Average pressure in January
Covina, 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 (29.87"Hg).
Average wind speed in January
Covina, CA
- Average wind speed in January: 5.3mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in January
Covina, CA
- Average humidity in January: 50%
The month with the highest relative humidity is May (56%).
The month with the lowest relative humidity is November (45%).
Average rainfall in January
Covina, CA
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is December (1.5").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Covina, CA
- Average rainfall days in January: 5.1 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.3 days).
Average daylight in January /
Average sunshine in January
Covina, CA
- Average daylight in January: 10h and 12min
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: 7h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
Covina, CA
- Average sunshine days in January: 25.1 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (22 days).
Average UV index in January
Covina, CA
- Average UV index in January: 4
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Covina, CA
- Average cloud cover in January: 19
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in January
Covina, 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).
