January weather forecast
Mountain Ranch, CA

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Weather in January

January in Mountain Ranch, California, is a mild winter month, with an average temperature ranging between min 38.5°F (3.6°C) and max 55.6°F (13.1°C).

Temperature

The average high-temperature during January registers at a refreshing 55.6°F (13.1°C), closely corresponding to the preceding month. January's nights observe an average temperature of 38.5°F (3.6°C).

Humidity

In January, the average relative humidity in Mountain Ranch is 69%.

Rainfall

In Mountain Ranch, in January, it is raining for 8.4 days, with typically 1.89" (48mm) of accumulated precipitation. In Mountain Ranch, during the entire year, the rain falls for 73.3 days and collects up to 16.42" (417mm) of precipitation.

Daylight

In January, the average length of the day is 9h and 52min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:23 pm PST.

Sunshine

The average sunshine in January is 6.3h.

UV index

The months with the lowest UV index 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 unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 3 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in January?

The high-temperature, in January, in Mountain Ranch, records 55.6°F (13.1°C), while the low-temperature is 38.5°F (3.6°C).

What is the average humidity in January?

In January, the average relative humidity is 69%.

How many days does it rain in January?

In Mountain Ranch, during January, the rain falls for 8.4 days and regularly aggregates up to 1.89" (48mm) of precipitation.

What is the average length of the day in January?

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

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:23 pm PST.

How many hours of sunshine does Mountain Ranch have in January?

In Mountain Ranch, California, the average sunshine duration in January is 6.3h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the UV index intensity in January?

In Mountain Ranch, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Mountain Ranch, CA

Average temperature in January - Mountain Ranch, CA
  • Average high temperature in January: 55.6°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in January: 38.5°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).

Average pressure in January
Mountain Ranch, CA

Average pressure in January - Mountain Ranch, 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
Mountain Ranch, CA

Average wind speed in January - Mountain Ranch, CA
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest months (with the lowest average wind speed) are August and September (4.4mph).

Average humidity in January
Mountain Ranch, CA

Average humidity in January - Mountain Ranch, CA
  • Average humidity in January: 69%

The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is July (37%).

Average rainfall in January
Mountain Ranch, CA

Average rainfall in January - Mountain Ranch, CA
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is March (3.39").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in January
Mountain Ranch, CA

Average rainfall days in January - Mountain Ranch, CA
  • Average rainfall days in January: 8.4 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (1.7 days).

Average daylight in January /
Average sunshine in January
Mountain Ranch, CA

Average daylight in January / Average sunshine in January - Mountain Ranch, 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 2min

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
Mountain Ranch, CA

Average sunshine days in January - Mountain Ranch, CA
  • Average sunshine days in January: 21.8 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (16.9 days).

Average UV index in January
Mountain Ranch, CA

Average UV index in January - Mountain Ranch, CA
  • Average UV index in January: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in January
Mountain Ranch, CA

Average cloud cover in January - Mountain Ranch, CA
  • Average cloud cover in January: 30

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in January
Mountain Ranch, CA

Average visibility in January - Mountain Ranch, 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).

Mountain Ranch, California, USA

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