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 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 advent of January signifies a minor shift to an average high-temperature of a still enjoyable 64.6°F, aligning closely with December. In Montclair, January's nights observe an average temperature dip to a frosty 46.8°F.Humidity
In Montclair, the average relative humidity in January is 49%.Rainfall
In Montclair, in January, during 5.4 rainfall days, 1.18" of precipitation is typically accumulated. Throughout the year, in Montclair, there are 49.6 rainfall days, and 7.8" of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Montclair.Daylight
In January, the average length of the day in Montclair is 10h and 11min.On the first day of the month, sunrise is at 6:56 am and sunset at 4:52 pm. On the last day of January, sunrise is at 6:48 am and sunset at 5:20 pm PST.
Sunshine
In January, the average sunshine is 7h.UV index
The average daily maximum UV index in January in Montclair is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 4 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
FAQ
What is the usual temperature for Montclair in January?
What is the average humidity in January in Montclair?
How many days does it rain in January in Montclair?
When it does not snow in Montclair?
Does it snow in Montclair in January?
What is the average length of the day in January in Montclair?
What time are sunrise and sunset in January in Montclair?
How long on average sun shines in January in Montclair?
What is the UV index intensity in January in Montclair?
Average temperature in January
Montclair, CA
- Average high temperature in January: 64.6°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).
- Average low temperature in January: 46.8°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in January
Montclair, 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 (29.86"Hg).
Average wind speed in January
Montclair, CA
- Average wind speed in January: 5.3mph
The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in January
Montclair, CA
- Average humidity in January: 49%
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).
Average rainfall in January
Montclair, CA
- Average rainfall in January: 1.18"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Montclair, CA
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in January
Montclair, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.1 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
Montclair, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
Montclair, CA
- Average sunshine days in January: 24.6 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in January
Montclair, CA
- Average UV index in January: 4
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Montclair, CA
- Average cloud cover in January: 19
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Montclair, 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).
Montclair, California, USA
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