January weather forecast and climate
Fort Ross, CA

Weather in January

January, the same as December, in Fort Ross, California, is a moderate winter month, with average temperature fluctuating between 57.7°F (14.3°C) and 42.3°F (5.7°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still moderate 57.7°F (14.3°C). In Fort Ross, California, the average low-temperature is 42.3°F (5.7°C).

Humidity

In Fort Ross, the average relative humidity is 75%.

Rainfall

In Fort Ross, in January, it is raining for 8.1 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 60.1 rainfall days, and 12.87" (327mm) of precipitation is accumulated.

Daylight

In Fort Ross, the average length of the day is 9.9h.

Sunshine

The average sunshine in Fort Ross is 5.6h.

UV index

Months with the lowest UV index in Fort Ross are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in January in Fort Ross?

In January, in Fort Ross, the average high-temperature is 57.7°F (14.3°C), and the average low-temperature is 42.3°F (5.7°C).

What is the average humidity in January in Fort Ross?

In Fort Ross, the average relative humidity in January is 75%.

How many days does it rain in January in Fort Ross?

In Fort Ross, in January, during 8.1 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

How many hours of daylight does Fort Ross have in January?

The average length of the day in January in Fort Ross, California, is 9.9h.

How long on average sun shines in January in Fort Ross?

In January, the average sunshine in Fort Ross is 5.6h.

When is the lowest UV index in Fort Ross?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Fort Ross, California.

What is the UV index intensity in January in Fort Ross?

In Fort Ross, California, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in January
Fort Ross, CA

Average temperature in January - Fort Ross, CA
  • Average high temperature in January: 57.7°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in January: 42.3°F

Months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in January
Fort Ross, CA

Average pressure in January - Fort Ross, CA
  • Average pressure in January: 30.13"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in January
Fort Ross, CA

Average wind speed in January - Fort Ross, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).

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Average humidity in January
Fort Ross, CA

Average humidity in January - Fort Ross, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

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Average rainfall in January
Fort Ross, CA

Average rainfall in January - Fort Ross, CA
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in January
Fort Ross, CA

Average rainfall days in January - Fort Ross, CA
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in January /
Average sunshine in January
Fort Ross, CA

Average daylight in January / Average sunshine in January - Fort Ross, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 5.6h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in January
Fort Ross, CA

Average sunshine days in January - Fort Ross, CA
  • Average sunshine days in January: 22 days

The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).

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Average UV index in January
Fort Ross, CA

Average UV index in January - Fort Ross, CA
  • Average UV index in January: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
Fort Ross, CA

Average cloud cover in January - Fort Ross, CA
  • Average cloud cover in January: 38

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in January
Fort Ross, CA

Average visibility in January - Fort Ross, CA
  • Average visibility in January: 6mi

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

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