January weather forecast
Potter Valley, CA

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Weather in January

January, the same as December, is another fresh winter month in Potter Valley, California, with an average temperature fluctuating between 53.2°F (11.8°C) and 36.3°F (2.4°C).

Temperature

As December transitions into January, the average high-temperature rests at a still fresh 53.2°F (11.8°C), maintaining a close resemblance to the previous month. In Potter Valley, the average low-temperature during the month of January is a wintry 36.3°F (2.4°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Potter Valley, in January, during 8.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 61.6 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

January through March and November are months with snowfall in Potter Valley. January is the month with the most snowfall. Snow falls for 0.2 days and accumulates 1.02" (26mm) of snow.

Daylight

The average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:31 pm PST.

Sunshine

In January, the average sunshine is 5.4h.

UV index

In January, the average daily maximum UV index in Potter Valley is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 3 in January leads to these guidelines:
Take precautions - Protection against sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in January?

During January, Potter Valley experiences an average high-temperature of 53.2°F (11.8°C) and a low-temperature of 36.3°F (2.4°C).

What is the average humidity in January?

In Potter Valley, the average relative humidity in January is 75%.

How many days does it rain in January?

In Potter Valley, in January, during 8.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 0.2 days and accumulates 1.02" (26mm) of snow.

When does it start to snow?

January is the first month it typically snows. Throughout January, in the average 0.2 snowfall days, it receives 1.02" (26mm) of snow.

How many hours of daylight does Potter Valley have in January?

In January, the average day length is 9h and 47min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:31 pm PST.

How long on average sun shines in January?

In Potter Valley, California, the average sunshine duration in January is 5.4h.

What is the UV index reading in January?

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

Average temperature in January
Potter Valley, CA

Average temperature in January - Potter Valley, CA
  • Average high temperature in January: 53.2°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (51.3°F).

  • Average low temperature in January: 36.3°F

The month with the highest average low temperature is July (53.4°F).
The coldest months (with the lowest average low temperature) are February, March and December (35.2°F).

Average pressure in January
Potter Valley, CA

Average pressure in January - Potter Valley, CA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in January
Potter Valley, CA

Average wind speed in January - Potter Valley, CA
  • Average wind speed in January: 4.3mph

The windiest months (with the highest average wind speed) are March and April (4.6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in January
Potter Valley, CA

Average humidity in January - Potter Valley, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is July (54%).

Average rainfall in January
Potter Valley, CA

Average rainfall in January - Potter Valley, CA
  • Average rainfall in January: 1.85"

The wettest month (with the highest rainfall) is February (2.28").
The driest months (with the least rainfall) are July, August and September (0.08").

Average rainfall days in January
Potter Valley, CA

Average rainfall days in January - Potter Valley, CA
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is March (10.3 days).
The months with the least rainy days are August and September (1.8 days).

Average snowfall in January
Potter Valley, CA

Average snowfall in January - Potter Valley, CA
  • Average snowfall in January: 1.02"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

Average snowfall days in January
Potter Valley, CA

Average snowfall days in January - Potter Valley, CA
  • Average snowfall days in January: 0.2 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

Average daylight in January /
Average sunshine in January
Potter Valley, CA

Average daylight in January / Average sunshine in January - Potter Valley, CA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in January
Potter Valley, CA

Average sunshine days in January - Potter Valley, CA
  • Average sunshine days in January: 21.2 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (20.2 days).

Average UV index in January
Potter Valley, CA

Average UV index in January - Potter Valley, CA
  • Average UV index in January: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in January
Potter Valley, CA

Average cloud cover in January - Potter Valley, CA
  • Average cloud cover in January: 43

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in January
Potter Valley, CA

Average visibility in January - Potter Valley, CA
  • Average visibility in January: 5mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).

Potter Valley, California, USA

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