January weather forecast
Fort Irwin, CA

Weather in January

January is a mild winter month in Fort Irwin, California, with an average temperature fluctuating between 56.8°F (13.8°C) and 41.2°F (5.1°C).

Temperature

In Fort Irwin, the average high-temperature in January is practically the same as in December - a moderate 56.8°F (13.8°C). The average low-temperature, in January, is 41.2°F (5.1°C).

Humidity

In January, the average relative humidity in Fort Irwin, California, is 46%.

Rainfall

In Fort Irwin, it is raining for 4.3 days, with typically 0.31" (8mm) of accumulated precipitation. In Fort Irwin, during the entire year, the rain falls for 39 days and collects up to 3.27" (83mm) of precipitation.

Snowfall

January is the only month when snow falls in Fort Irwin. The month with the most snowfall is January, when snow falls for 0.3 days and typically aggregates up to 0.04" (1mm) of snow.

Daylight

The average length of the day in January in Fort Irwin is 10h and 6min.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:45 pm. On the last day of January, in Fort Irwin, sunrise is at 6:46 am and sunset at 5:13 pm PST.

Sunshine

The month with the least sunshine is January, with an average of 7.1h of sunshine.

UV index

In January, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in January in Fort Irwin?

In January, the average high-temperature is 56.8°F (13.8°C), and the average low-temperature is 41.2°F (5.1°C).

What is the average humidity in January in Fort Irwin?

In January, the average relative humidity in Fort Irwin, California, is 46%.

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

In Fort Irwin, California, in January, during 4.3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

When does it snow the most in Fort Irwin?

The month with the most snowfall in Fort Irwin is January, when snow falls for 0.3 days and typically aggregates up to 0.04" (1mm) of snow.

When does it start to snow in Fort Irwin?

January is the first month it typically snows in Fort Irwin. Throughout January, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in January in Fort Irwin?

The average day length in January in Fort Irwin is 10h and 6min.

When are sunrise and sunset in January in Fort Irwin?

On the first day of January in Fort Irwin, California, sunrise is at 6:55 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 5:13 pm PST.

What is the month with the least sunshine in Fort Irwin?

January has the least sunshine of the year in Fort Irwin, California, with an average of 7.1h of sunshine.

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

The average sunshine duration in January is 7.1h.

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

In January, the average daily maximum UV index in Fort Irwin, California, is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Fort Irwin, CA

Average temperature in January - Fort Irwin, CA
  • Average high temperature in January: 56.8°F

The warmest month (with the highest average high temperature) is July (98.2°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in January: 41.2°F

The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

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Average pressure in January
Fort Irwin, CA

Average pressure in January - Fort Irwin, CA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

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Average wind speed in January
Fort Irwin, CA

Average wind speed in January - Fort Irwin, CA
  • Average wind speed in January: 6mph

The windiest month (with the highest average wind speed) is May (11.7mph).
The calmest month (with the lowest average wind speed) is January (6mph).

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Average humidity in January
Fort Irwin, CA

Average humidity in January - Fort Irwin, CA
  • Average humidity in January: 46%

The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (21%).

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Average rainfall in January
Fort Irwin, CA

Average rainfall in January - Fort Irwin, CA
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is December (0.51").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Fort Irwin, CA

Average rainfall days in January - Fort Irwin, CA
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is December (4.6 days).
The month with the least rainy days is June (0.6 days).

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Average snowfall in January
Fort Irwin, CA

Average snowfall in January - Fort Irwin, CA
  • Average snowfall in January: 0.04"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in January
Fort Irwin, CA

Average snowfall days in January - Fort Irwin, CA
  • Average snowfall days in January: 0.3 days

The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in January / Average sunshine in January - Fort Irwin, CA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 7h and 1min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

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Average sunshine days in January
Fort Irwin, CA

Average sunshine days in January - Fort Irwin, CA
  • Average sunshine days in January: 25.9 days

The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (23.5 days).

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Average UV index in January
Fort Irwin, CA

Average UV index in January - Fort Irwin, CA
  • Average UV index in January: 4

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in January
Fort Irwin, CA

Average cloud cover in January - Fort Irwin, CA
  • Average cloud cover in January: 17

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 4).

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Average visibility in January
Fort Irwin, CA

Average visibility in January - Fort Irwin, 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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