January weather forecastNewcastle, CA
January
Weather in January
January, like December, in Newcastle, California, is a cool winter month, with an average temperature varying between 39.7°F (4.3°C) and 55°F (12.8°C).Temperature
The beginning of January records an average high-temperature of a still fresh 55°F (12.8°C), almost echoing the conditions of the previous month. Newcastle records an average nighttime low of 39.7°F (4.3°C) in January.Humidity
In Newcastle, California, the average relative humidity in January is 70%.Rainfall
In Newcastle, during January, the rain falls for 10.6 days and regularly aggregates up to 4.45" (113mm) of precipitation. In Newcastle, during the entire year, the rain falls for 84.8 days and collects up to 28.86" (733mm) of precipitation.Snowfall
In Newcastle, California, snow does not fall in January, April through November.Daylight
In Newcastle, the average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:53 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:24 pm PST.
Sunshine
January and December, with an average of 5.8h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Newcastle are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 3 during January morphs into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Newcastle, CA
- Average high temperature in January: 55°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.4°F).
- Average low temperature in January: 39.7°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in January
Newcastle, CA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Newcastle, CA
- Average wind speed in January: 5mph
The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in January
Newcastle, CA
- Average humidity in January: 70%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (38%).
Average rainfall in January
Newcastle, CA
- Average rainfall in January: 4.45"
The wettest month (with the highest rainfall) is March (5.63").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Newcastle, CA
- Average rainfall days in January: 10.6 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is July (1 days).
Average snowfall in January
Newcastle, CA
- Average snowfall in January: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Newcastle, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Newcastle, CA
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in January
Newcastle, CA
- Average sunshine days in January: 19.6 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in January
Newcastle, 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
Newcastle, CA
- Average cloud cover in January: 35
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Newcastle, 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).
