January weather forecast and climate
Fort Irwin, CA

Weather in January

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

Temperature

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

Humidity

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

Rainfall

In Fort Irwin, in January, during 4.3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. 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. January is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.04" (1mm) of snow.

Daylight

In Fort Irwin, the average length of the day is 10.1h.

Sunshine

With an average of 7.1h of sunshine, January has the least sunshine of the year.

UV index

In January, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. 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 is 46%.

How much does it rain in Fort Irwin in January?

In January, the rain falls for 4.3 days. Throughout January, 0.31" (8mm) of precipitation is accumulated.

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 snowiest month in Fort Irwin?

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

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

In January, the average length of the day in Fort Irwin, California, is 10.1h.

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

The month with the least sunshine in Fort Irwin, California, is January, with an average of 7.1h of sunshine.

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

In January, the average sunshine in Fort Irwin is 7.1h.

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

In January, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.

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"

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

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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").
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

Months with the highest number of snowfall days are January and December (0.3 days).
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: 10.1h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in January: 7.1h

Months with the most sunshine are June, July and August (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 7.1h).

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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

Months with the highest UV index are June and July (UV index 8).
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

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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