October 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 October

October, like September, in Perris, California, is a moderately hot autumn month, with average temperature ranging between min 54.5°F (12.5°C) and max 77.9°F (25.5°C).

Temperature

In Perris, the average high-temperature in October marginally drops, from a warm 85.8°F (29.9°C) in September, to a still moderately hot 77.9°F (25.5°C). The average low-temperature, in Perris, is 54.5°F (12.5°C).

Humidity

The average relative humidity in Perris, California, is 51%.

Rainfall

In Perris, in October, it is raining for 3.3 days, with typically 0.24" (6mm) of accumulated precipitation. In Perris, California, 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 in Perris.

Daylight

In October, the average length of the day in Perris is 11.3h.

Sunshine

In October, the average sunshine in Perris is 8.8h.

UV index

In October, the average daily maximum UV index in Perris is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. 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 October in Perris?

In October, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 54.5°F (12.5°C).

What is the average humidity in October in Perris?

In October, the average relative humidity in Perris, California, is 51%.

How much does it rain in Perris in October?

In Perris, in October, it is raining for 3.3 days, with typically 0.24" (6mm) of accumulated precipitation.

When it does not snow in Perris?

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

How many hours of daylight does Perris have in October?

In Perris, California, the average length of the day in October is 11.3h.

How many hours of sunshine does Perris have in October?

The average sunshine in October in Perris, California, is 8.8h.

How high is the UV index in October in Perris?

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

Average temperature in October
Perris, CA

Average temperature in October - Perris, CA
  • Average high temperature in October: 77.9°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 October: 54.5°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 October
Perris, CA

Average pressure in October - Perris, CA
  • Average pressure in October: 29.93"

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 October
Perris, CA

Average wind speed in October - Perris, CA
  • Average wind speed in October: 4.3mph

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 October
Perris, CA

Average humidity in October - Perris, CA
  • Average humidity in October: 51%

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 October
Perris, CA

Average rainfall in October - Perris, CA
  • Average rainfall in October: 0.24"

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 October
Perris, CA

Average rainfall days in October - Perris, CA
  • Average rainfall days in October: 3.3 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 October
Perris, CA

Average snowfall in October - Perris, CA
  • Average snowfall in October: 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 October
Perris, CA

Average snowfall days in October - Perris, CA
  • Average snowfall days in October: 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 October /
Average sunshine in October
Perris, CA

Average daylight in October / Average sunshine in October - Perris, CA
  • Average daylight in October: 11.3h

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 October: 8.8h

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 October
Perris, CA

Average sunshine days in October - Perris, CA
  • Average sunshine days in October: 26.1 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 October
Perris, CA

Average UV index in October - Perris, CA
  • Average UV index in October: 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 October
Perris, CA

Average cloud cover in October - Perris, CA
  • Average cloud cover in October: 12

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 October
Perris, CA

Average visibility in October - Perris, CA
  • Average visibility in October: 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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