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 marks an average high-temperature of an enjoyable 61°F (16.1°C), hardly distinguishable from the conditions in December. During the month of January, Mount Wilson anticipates a mean low-temperature of 44.2°F (6.8°C).Humidity
The average relative humidity in January in Mount Wilson, California, is 51%.Rainfall
In Mount Wilson, in January, it is raining for 5.3 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 50.3 rainfall days, and 8.7" (221mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Mount Wilson, in January, during 0.5 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, in Mount Wilson, there are 3.5 snowfall days, and 7.32" (186mm) of snow is accumulated.Daylight
In January, the average length of the day is 10h and 11min.On the first day of the month, sunrise is at 6:58 am and sunset at 4:53 pm. On the last day of January, in Mount Wilson, sunrise is at 6:50 am and sunset at 5:20 pm PST.
Sunshine
January, February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Mount Wilson.UV index
In Mount Wilson, the average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In January, a regular UV index of 4 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average January temperature in Mount Wilson?
What is the average humidity in January in Mount Wilson?
How many days does it rain in January in Mount Wilson?
How many days does it snow in January in Mount Wilson?
How many hours of daylight does Mount Wilson have in January?
When are sunrise and sunset in January in Mount Wilson?
What is the month with the least sunshine in Mount Wilson?
How long on average sun shines in January in Mount Wilson?
What is the UV index reading in January in Mount Wilson?
Average temperature in January
Mount Wilson, CA
- Average high temperature in January: 61°F
The warmest month (with the highest average high temperature) is August (86.2°F).
The month with the lowest average high temperature is December (58.5°F).
- Average low temperature in January: 44.2°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (43.3°F).
Average pressure in January
Mount Wilson, 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 (29.88"Hg).
Average wind speed in January
Mount Wilson, CA
- Average wind speed in January: 5.8mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in January
Mount Wilson, CA
- Average humidity in January: 51%
The month with the highest relative humidity is March (56%).
The month with the lowest relative humidity is August (45%).
Average rainfall in January
Mount Wilson, CA
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
Mount Wilson, CA
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is March (6.4 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in January
Mount Wilson, CA
- Average snowfall in January: 0.59"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Mount Wilson, CA
- Average snowfall days in January: 0.5 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Mount Wilson, 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: 6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
Mount Wilson, CA
- Average sunshine days in January: 25.1 days
The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.4 days).
Average UV index in January
Mount Wilson, CA
- Average UV index in January: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in January
Mount Wilson, CA
- Average cloud cover in January: 20
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Mount Wilson, 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).
Mount Wilson, California, USA
Weather forecast for your location
2. Allow the app to use your location
