January weather forecast
Arnold, CA

Weather in January

January in Arnold, California, is a fresh winter month, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 50.7°F (10.4°C).

Temperature

In January, the average high-temperature is practically the same as in December - a fresh 50.7°F (10.4°C). In Arnold, in January, the average low-temperature is 34°F (1.1°C).

Humidity

In January, the average relative humidity is 68%.

Rainfall

In January, the rain falls for 7.8 days. Throughout January, 4.33" (110mm) of precipitation is accumulated. In Arnold, during the entire year, the rain falls for 69 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Arnold, during January, snow falls for 4.8 days and regularly aggregates up to 11.69" (297mm) of snow. Throughout the year, in Arnold, there are 31 snowfall days, and 79.92" (2030mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 52min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:23 pm PST.

Sunshine

In January, the average sunshine 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 rays for ordinary individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in January in Arnold?

In Arnold, California, the average relative humidity in January is 68%.

How much does it rain in Arnold in January?

In Arnold, California, in January, during 7.8 rainfall days, 4.33" (110mm) of precipitation is typically accumulated.

How many days does it snow in January in Arnold?

In Arnold, California, during January, snow falls for 4.8 days and regularly aggregates up to 11.69" (297mm) of snow.

How many hours of daylight does Arnold have in January?

In Arnold, the average day length in January is 9h and 52min.

What time are sunrise and sunset in January in Arnold?

On the first day of January in Arnold, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:23 pm PST.

How many hours of sunshine does Arnold have in January?

The average sunshine duration in January is 6.1h.

What is the UV index intensity in January in Arnold?

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Arnold, CA

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).

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Average pressure in January
Arnold, CA

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).

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Average wind speed in January
Arnold, CA

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).

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Average humidity in January
Arnold, CA

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%).

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Average rainfall in January
Arnold, CA

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").

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Average rainfall days in January
Arnold, CA

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).

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Average snowfall in January
Arnold, CA

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").

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Average snowfall days in January
Arnold, CA

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).

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Average daylight in January /
Average sunshine in January
Arnold, CA

Average daylight in January / Average sunshine in January - Arnold, CA
  • Average daylight in January: 9h and 52min

The month with the longest days is June (Average daylight: 14h and 47min).
The month with the shortest days is December (Average daylight: 9h and 34min).

  • Average sunshine in January: 6h and 6min

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).

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Average sunshine days in January
Arnold, CA

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).

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Average UV index in January
Arnold, CA

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).

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Average cloud cover in January
Arnold, CA

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).

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Average visibility in January
Arnold, CA

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).

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