January weather forecast
Alpine, CA

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Weather in January

January, like December, in Alpine, California, is another comfortable winter month, with an average temperature varying between 45°F (7.2°C) and 63.9°F (17.7°C).

Temperature

January's advent presents an average high-temperature of a still enjoyable 63.9°F (17.7°C), indicating a slight variation from the conditions of the previous month. An average low-temperature of 45°F (7.2°C) is observed in Alpine during the January nights.

Humidity

In Alpine, the average relative humidity in January is 53%.

Rainfall

In Alpine, in January, during 5.1 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Daylight

In Alpine, the average length of the day in January is 10h and 17min.
On the first day of January in Alpine, California, sunrise is at 6:49 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 5:18 pm PST.

Sunshine

The average sunshine in January is 6.9h.

UV index

In Alpine, the average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 4 in January transforms into this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in January?

The average high-temperature and low-temperature during January are 63.9°F (17.7°C) and 45°F (7.2°C) respectively.

What is the average humidity in January in Alpine?

In Alpine, the average relative humidity in January is 53%.

How much does it rain in January?

In Alpine, in January, it is raining for 5.1 days, with typically 0.75" (19mm) of accumulated precipitation.

How many hours of daylight does Alpine have in January?

In Alpine, the average day length in January is 10h and 17min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 6:49 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 5:18 pm PST.

How many hours of sunshine does Alpine have in January?

In Alpine, California, the average sunshine duration in January is 6.9h.

How high is the UV index in January?

The average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Alpine, CA

Average temperature in January - Alpine, CA
  • Average high temperature in January: 63.9°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in January: 45°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

Average pressure in January
Alpine, CA

Average pressure in January - Alpine, CA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in January
Alpine, CA

Average wind speed in January - Alpine, CA
  • Average wind speed in January: 5.1mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

Average humidity in January
Alpine, CA

Average humidity in January - Alpine, CA
  • Average humidity in January: 53%

The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).

Average rainfall in January
Alpine, CA

Average rainfall in January - Alpine, CA
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in January
Alpine, CA

Average rainfall days in January - Alpine, CA
  • Average rainfall days in January: 5.1 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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

Average daylight in January / Average sunshine in January - Alpine, CA
  • Average daylight in January: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 6h and 5min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in January
Alpine, CA

Average sunshine days in January - Alpine, CA
  • Average sunshine days in January: 24.3 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

Average UV index in January
Alpine, CA

Average UV index in January - Alpine, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).

Average cloud cover in January
Alpine, CA

Average cloud cover in January - Alpine, CA
  • Average cloud cover in January: 20

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in January
Alpine, CA

Average visibility in January - Alpine, 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).

Alpine, California, USA

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