January weather forecast and climate
Perris, CA

Landscape in the State Recreation Area on Lake Perris, California
Landscape in the State Recreation Area on Lake Perris, California

Weather in January

January, like December, in Perris, California, is another comfortable winter month, with average temperature varying between 44.2°F (6.8°C) and 63.5°F (17.5°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still comfortable 63.5°F (17.5°C). The average low-temperature, in January, is 44.2°F (6.8°C).

Humidity

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

Rainfall

In Perris, California, during January, the rain falls for 5.6 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Perris, during the entire year, the rain falls for 55.7 days and collects up to 7.05" (179mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

The average length of the day in January is 10.2h.

Sunshine

In Perris, the average sunshine in January is 6.8h.

UV index

In Perris, the average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Perris?

The average high-temperature, in January, in Perris, California, is 63.5°F (17.5°C), while the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in January in Perris?

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

How many days does it rain in January in Perris?

In Perris, California, during January, the rain falls for 5.6 days and regularly aggregates up to 0.79" (20mm) of precipitation.

Does it snow in Perris in January?

In Perris, in January, it doesn't snow. In February, it regularly snows.

When it does not snow in Perris?

January, March through December are months without snowfall in Perris.

How many hours of daylight does Perris have in January?

In Perris, the average length of the day in January is 10.2h.

How many hours of sunshine does Perris have in January?

In Perris, California, the average sunshine in January is 6.8h.

What is the UV index reading in January in Perris?

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

Average temperature in January
Perris, CA

Average temperature in January - Perris, CA
  • Average high temperature in January: 63.5°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is December (61°F).

  • Average low temperature in January: 44.2°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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Average pressure in January
Perris, CA

Average pressure in January - Perris, CA
  • Average pressure in January: 30.1"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in January
Perris, CA

Average wind speed in January - Perris, CA
  • Average wind speed in January: 5mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4.2mph).

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Average humidity in January
Perris, CA

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

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in January
Perris, CA

Average rainfall in January - Perris, CA
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Perris, CA

Average rainfall days in January - Perris, CA
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in January
Perris, CA

Average snowfall in January - Perris, CA
  • Average snowfall in January: 0"

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

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Average snowfall days in January
Perris, CA

Average snowfall days in January - Perris, CA
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is February (0.2 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in January / Average sunshine in January - Perris, CA
  • Average daylight in January: 10.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in January: 6.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in January
Perris, CA

Average sunshine days in January - Perris, CA
  • Average sunshine days in January: 24.1 days

The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21.6 days).

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Average UV index in January
Perris, CA

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Perris, CA

Average cloud cover in January - Perris, CA
  • Average cloud cover in January: 21

Months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in January
Perris, CA

Average visibility in January - Perris, 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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