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 snowfall in January
- Average snowfall 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
January commences with an average high-temperature of a still comfortable 63.5°F (17.5°C), showing little deviation from December's 61°F (16.1°C). In the month of January, Winchester experiences an average low-temperature of 44.2°F (6.8°C).Humidity
In January, the average relative humidity is 53%.Rainfall
In Winchester, in January, during 5.6 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Winchester, during the entire year, the rain falls for 55.7 days and collects up to 7.05" (179mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In Winchester, the average length of the day in January is 10h and 13min.On the first day of January, sunrise is at 6:52 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 5:18 pm PST.
Sunshine
In Winchester, the average sunshine in January is 6.8h.UV index
In Winchester, California, the average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in January leads to these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
When it does not snow?
Does it snow in Winchester in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
How high is the UV index in January in Winchester?
Average temperature in January
Winchester, CA
- Average high temperature in January: 63.5°F
The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is December (61°F).
- Average low temperature in January: 44.2°F
The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43°F).
Average pressure in January
Winchester, 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 (29.85"Hg).
Average wind speed in January
Winchester, CA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4.2mph).
Average humidity in January
Winchester, CA
- Average humidity in January: 53%
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).
Average rainfall in January
Winchester, CA
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Winchester, CA
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in January
Winchester, 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
Winchester, 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
Winchester, 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: 10h and 0min).
- Average sunshine in January: 6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Winchester, CA
- Average sunshine days in January: 24.1 days
The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in January
Winchester, CA
- Average UV index in January: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Winchester, CA
- Average cloud cover in January: 21
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Winchester, 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).
Winchester, California, USA
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