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
Arnold signifies an average high-temperature of a cool 50.7°F (10.4°C) in January, closely mirroring the 48°F (8.9°C) of December. Throughout January, Arnold registers a consistent average low-temperature of 34°F (1.1°C).Humidity
In January, the average relative humidity is 68%.Rainfall
In Arnold, in January, it is raining for 7.8 days, with typically 4.33" (110mm) of accumulated precipitation. Throughout the year, there are 69 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 4.8 days. Throughout January, 11.69" (297mm) of snow is accumulated. In Arnold, during the entire year, snow falls for 31 days and aggregates up to 79.92" (2030mm) of snow.Daylight
In Arnold, the average length of the day in January is 9h and 52min.On the first day of January, sunrise is at 7:18 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:22 pm PST.
Sunshine
The average sunshine in January is 6.1h.UV index
In Arnold, the average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In January, a daily UV index of 3 turns into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Arnold in January?
What is the average humidity in January?
How many days does it rain in January in Arnold?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Arnold?
How many hours of sunshine does Arnold have in January?
What is the UV index intensity in January?
Average temperature in January
Arnold, CA
- Average high temperature in January: 50.7°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48°F).
- Average low temperature in January: 34°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (32°F).
Average pressure in January
Arnold, 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 (29.91"Hg).
Average wind speed in January
Arnold, CA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Arnold, CA
- Average humidity in January: 68%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (36%).
Average rainfall in January
Arnold, CA
- Average rainfall in January: 4.33"
The wettest month (with the highest rainfall) is March (5.98").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in January
Arnold, CA
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in January
Arnold, CA
- Average snowfall in January: 11.69"
The month with the highest snowfall is March (21.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Arnold, CA
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is March (7.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Arnold, CA
- Average daylight in January: 9h and 5min
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 36min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in January
Arnold, CA
- Average sunshine days in January: 20.2 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is March (14.5 days).
Average UV index in January
Arnold, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in January
Arnold, CA
- Average cloud cover in January: 31
The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in January
Arnold, 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).
Arnold, California, USA
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