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
The start of January sees the average high-temperature at a moderate 56.8°F (13.8°C), showing little difference from December's 54.5°F (12.5°C). Throughout the month of January, Cajon Junction expects an average low of 40.6°F (4.8°C).Humidity
In Cajon Junction, the average relative humidity in January is 51%.Rainfall
In Cajon Junction, in January, it is raining for 2.6 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, there are 32.3 rainfall days, and 2.52" (64mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Cajon Junction, in January, snow falls for 1 days, with typically accumulated 0.24" (6mm) of snow. In Cajon Junction, during the entire year, snow falls for 7.8 days and aggregates up to 5.59" (142mm) of snow.Daylight
In January, the average length of the day is 10h and 10min.On the first day of January in Cajon Junction, sunrise is at 6:56 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:18 pm PST.
Sunshine
The average sunshine in January is 7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in January interprets into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Cajon Junction?
What is the average humidity in January in Cajon Junction?
How much does it rain in Cajon Junction in January?
How much does it snow in Cajon Junction in January?
How many hours of daylight does Cajon Junction have in January?
When is the sunrise / sunset in January in Cajon Junction?
How many hours of sunshine does Cajon Junction have in January?
What is the month with the lowest UV index in Cajon Junction?
What is the UV index intensity in January in Cajon Junction?
Average temperature in January
Cajon Junction, CA
- Average high temperature in January: 56.8°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in January: 40.6°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in January
Cajon Junction, CA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Cajon Junction, CA
- Average wind speed in January: 6.3mph
The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).
Average humidity in January
Cajon Junction, CA
- Average humidity in January: 51%
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is August (33%).
Average rainfall in January
Cajon Junction, CA
- Average rainfall in January: 0.2"
The wettest month (with the highest rainfall) is December (0.47").
The driest month (with the least rainfall) is June (0").
Average rainfall days in January
Cajon Junction, CA
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is March (4.9 days).
The month with the least rainy days is June (0.7 days).
Average snowfall in January
Cajon Junction, CA
- Average snowfall in January: 0.24"
The month with the highest snowfall is December (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Cajon Junction, CA
- Average snowfall days in January: 1 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Cajon Junction, 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: 9h and 54min).
- Average sunshine in January: 7h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in January
Cajon Junction, CA
- Average sunshine days in January: 26.6 days
The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (23.6 days).
Average UV index in January
Cajon Junction, CA
- Average UV index in January: 3
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Cajon Junction, CA
- Average cloud cover in January: 19
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Cajon Junction, 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).
Cajon Junction, California, USA
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