January weather forecastEast Porterville, CA
January
Weather in January
January, the same as December, in East Porterville, California, is another refreshing winter month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 59.9°F (15.5°C).Temperature
January's presence marks an average high-temperature of a still mild 59.9°F (15.5°C), subtly varied from December's 57.6°F (14.2°C). East Porterville experiences an average nighttime temperature of 41.5°F (5.3°C) in the month of January.Humidity
With an average relative humidity of 64%, January is the most humid month.Rainfall
In East Porterville, during January, the rain falls for 6.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. In East Porterville, during the entire year, the rain falls for 52.3 days and collects up to 9.37" (238mm) of precipitation.Snowfall
In East Porterville, snow does not fall in January, March through December.Daylight
In East Porterville, the average length of the day in January is 10h and 2min.On the first day of January, sunrise is at 7:06 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:21 pm PST.
Sunshine
The average sunshine in January is 6.9h.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 3 in January transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
East Porterville, CA
- Average high temperature in January: 59.9°F
The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in January: 41.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (40.3°F).
Average pressure in January
East Porterville, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
East Porterville, CA
- Average wind speed in January: 3.9mph
The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest month (with the lowest average wind speed) is December (3.6mph).
Average humidity in January
East Porterville, CA
- Average humidity in January: 64%
The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is August (30%).
Average rainfall in January
East Porterville, CA
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is March (1.93").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in January
East Porterville, CA
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is March (9.3 days).
The month with the least rainy days is August (0.5 days).
Average snowfall days in January
East Porterville, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
East Porterville, CA
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in January
East Porterville, CA
- Average sunshine days in January: 23.1 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in January
East Porterville, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in January
East Porterville, CA
- Average cloud cover in January: 22
The month with the most cloud cover is March (Cloud cover 24).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in January
East Porterville, 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).





