January weather forecastManteca, CA
January
Weather in January
January in Manteca, California, is a mild winter month, with an average temperature ranging between min 41°F (5°C) and max 56.8°F (13.8°C).Temperature
Manteca greets January with an average high-temperature of a mild 56.8°F (13.8°C), marking a slight deviation from the preceding month. Throughout the month of January, Manteca sees a steady low-temperature average of 41°F (5°C).Humidity
The most humid month is January, with an average relative humidity of 73%.Rainfall
In Manteca, during January, the rain falls for 8.5 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Manteca, during the entire year, the rain falls for 67.8 days and collects up to 11.22" (285mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In January, the average length of the day is 9h and 54min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:56 pm. On the last day of January, in Manteca, sunrise is at 7:09 am and sunset at 5:26 pm PST.
Sunshine
The average sunshine in January is 6.2h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during January leads to these instructions:
Take precautions - Protection against sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. 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
Average temperature in January
Manteca, CA
- Average high temperature in January: 56.8°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in January: 41°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).
Average pressure in January
Manteca, CA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Manteca, CA
- Average wind speed in January: 4.9mph
The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in January
Manteca, CA
- Average humidity in January: 73%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is July (42%).
Average rainfall in January
Manteca, CA
- Average rainfall in January: 1.81"
The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in January
Manteca, CA
- Average rainfall days in January: 8.5 days
The month with the highest number of rainy days is March (12 days).
The month with the least rainy days is August (1.2 days).
Average snowfall days in January
Manteca, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Manteca, CA
- Average daylight in January: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 6h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in January
Manteca, CA
- Average sunshine days in January: 21.5 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in January
Manteca, 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
Manteca, CA
- Average cloud cover in January: 31
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Manteca, 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).





