January weather forecast
Westley, CA

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Weather in January

January, like December, is a moderate winter month in Westley, California, with an average temperature fluctuating between 57.4°F (14.1°C) and 41°F (5°C).

Temperature

January brings a marginal elevation to a still refreshing 57.4°F (14.1°C) from December's 55.4°F (13°C) in Westley's average high-temperatures. Westley, in January, experiences an average temperature of 41°F (5°C) at night.

Humidity

With an average relative humidity of 72%, January is the most humid month in Westley, California.

Rainfall

In Westley, during January, the rain falls for 6.9 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, in Westley, there are 49.1 rainfall days, and 2.8" (71mm) of precipitation is accumulated.

Daylight

In January, the average length of the day is 9h and 55min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:57 pm. On the last day of January, in Westley, sunrise is at 7:09 am and sunset at 5:27 pm PST.

Sunshine

In January, the average sunshine in Westley is 6.2h.

UV index

The months with the lowest UV index in Westley are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during January translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What are January temperatures in Westley?

An average high-temperature, in January, in Westley, is 57.4°F (14.1°C) and the average low-temperature is 41°F (5°C).

What is the most humid month in Westley?

With an average relative humidity of 72%, January is the most humid month.

What is the average humidity in January in Westley?

In Westley, California, the average relative humidity in January is 72%.

How many days does it rain in January in Westley?

In Westley, California, in January, it is raining for 6.9 days, with typically 0.39" (10mm) of accumulated precipitation.

How many hours of daylight does Westley have in January?

In Westley, California, the average day length in January is 9h and 55min.

When are sunrise and sunset in January in Westley?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:57 pm. On the last day of the month, in Westley, California, sunrise is at 7:09 am and sunset at 5:27 pm PST.

How many hours of sunshine does Westley have in January?

In January, the average sunshine duration in Westley is 6.2h.

When is the lowest UV index in Westley?

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

What is the UV index intensity in January in Westley?

In January, the average daily maximum UV index in Westley, California, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average low temperature
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Westley, CA

Average temperature in January - Westley, CA
  • Average high temperature in January: 57.4°F

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in January: 41°F

The months with the highest average low temperature are July and August (60.8°F).
The coldest months (with the lowest average low temperature) are January and December (41°F).

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Average pressure in January
Westley, CA

Average pressure in January - Westley, CA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Westley, CA

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

The windiest month (with the highest average wind speed) is June (6.7mph).
The calmest months (with the lowest average wind speed) are January and November (5.1mph).

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Average humidity in January
Westley, CA

Average humidity in January - Westley, CA
  • Average humidity in January: 72%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (39%).

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Average rainfall in January
Westley, CA

Average rainfall in January - Westley, CA
  • Average rainfall in January: 0.39"

The wettest months (with the highest rainfall) are March and December (0.47").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in January
Westley, CA

Average rainfall days in January - Westley, CA
  • Average rainfall days in January: 6.9 days

The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is June (1 days).

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

Average daylight in January / Average sunshine in January - Westley, CA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in January
Westley, CA

Average sunshine days in January - Westley, CA
  • Average sunshine days in January: 23 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (20.9 days).

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Average UV index in January
Westley, CA

Average UV index in January - Westley, CA
  • Average UV index in January: 3

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

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Average cloud cover in January
Westley, CA

Average cloud cover in January - Westley, CA
  • Average cloud cover in January: 32

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in January
Westley, CA

Average visibility in January - Westley, 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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Westley, California, USA

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