January weather forecast
Perris, CA

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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 enjoyable winter month, with an average temperature ranging between max 63.5°F (17.5°C) and min 44.2°F (6.8°C).

Temperature

The arrival of January sees an average high-temperature of a still enjoyable 63.5°F (17.5°C), hardly diverging from December's 61°F (16.1°C). Perris experiences an average temperature drop to a chilly 44.2°F (6.8°C) during January nights.

Humidity

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

Rainfall

In Perris, during January, the rain falls for 5.6 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 55.7 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Snowfall

In Perris, snow does not fall in January, March through December.

Daylight

The average length of the day in January in Perris, California, is 10h and 13min.
On the first day of January, sunrise is at 6:53 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 5:18 pm PST.

Sunshine

The average sunshine in January is 6.8h.

UV index

In January, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during January leads to these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are the temperatures in Perris in January?

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

What is the average humidity in January in Perris?

The average relative humidity in January is 53%.

How many days does it rain in January in Perris?

In Perris, California, in January, during 5.6 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When it does not snow in Perris?

January, March through December are months without snowfall.

Does it snow in Perris in January?

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

How many hours of daylight does Perris have in January?

In January, the average day length in Perris, California, is 10h and 13min.

When are sunrise and sunset in January in Perris?

In January, on the first day of the month, sunrise is at 6:53 am and sunset at 4:51 pm. On the last day of the month, in Perris, California, sunrise is at 6:46 am and sunset at 5:18 pm PST.

How long on average sun shines in January in Perris?

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

What is the UV index reading in January in Perris?

In January, the average daily maximum UV index in Perris is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
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"Hg

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

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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").
The 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).
The 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: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 6h and 5min

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 42min).

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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

The 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

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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Perris, California, USA

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