January weather forecastManchester, CA
January
Weather in January
January, like December, in Manchester, California, is a cool winter month, with an average temperature varying between 55.2°F (12.9°C) and 38.8°F (3.8°C).Temperature
The average high-temperature is a still fresh 55.2°F (12.9°C) in January, hardly different from the 53.6°F (12°C) recorded in December. During the month of January, the nighttime temperature falls to an average of 38.8°F (3.8°C).Humidity
The average relative humidity in January is 75%.Rainfall
In Manchester, in January, it is raining for 11.3 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, in Manchester, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In Manchester, snow does not fall in January, March through December.Daylight
In Manchester, the average length of the day in January is 9h and 49min.On the first day of January, sunrise is at 7:33 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:34 pm PST.
Sunshine
The average sunshine in January in Manchester is 5.5h.UV index
In January, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during January leads to these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. 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
Manchester, CA
- Average high temperature in January: 55.2°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).
- Average low temperature in January: 38.8°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure in January
Manchester, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in January
Manchester, CA
- Average wind speed in January: 4.6mph
The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in January
Manchester, CA
- Average humidity in January: 75%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).
Average rainfall in January
Manchester, CA
- Average rainfall in January: 2.91"
The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in January
Manchester, CA
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in January
Manchester, CA
- Average snowfall in January: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Manchester, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.3 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
Manchester, CA
- Average daylight in January: 9h and 48min
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 30min).
- Average sunshine in January: 5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Manchester, CA
- Average sunshine days in January: 18.5 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in January
Manchester, CA
- Average UV index in January: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover in January
Manchester, CA
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in January
Manchester, CA
- Average visibility in January: 5mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).





