Monthly 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). In January, the average high-temperature is practically the same as in December - a still comfortable 63.5°F (17.5°C). Weather in January »

Weather in February

February, the last month of the winter, in Perris, is also an enjoyable month, with average temperature ranging between max 63°F (17.2°C) and min 43.2°F (6.2°C). In February, the average high-temperature is essentially the same as in January - a still enjoyable 63°F (17.2°C). Weather in February »

Weather in March

The first month of the spring, March, is also an enjoyable month in Perris, California, with average temperature varying between 45.1°F (7.3°C) and 66.7°F (19.3°C). In March, the average high-temperature is relatively the same as in February - a still enjoyable 66.7°F (19.3°C). Weather in March »

Weather in April

April is a pleasant spring month in Perris, California, with average temperature ranging between min 47.8°F (8.8°C) and max 70.7°F (21.5°C). In Perris, the average high-temperature in April is relatively the same as in March - an agreeable 70.7°F (21.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Perris, California, with average temperature ranging between max 74.3°F (23.5°C) and min 51.3°F (10.7°C). In May, the average high-temperature is almost the same as in April - a warm 74.3°F (23.5°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Perris, California, with average temperature varying between 82.9°F (28.3°C) and 55.4°F (13°C). In Perris, the average high-temperature in June slightly increases, from 74.3°F (23.5°C) in May, to a still moderately hot 82.9°F (28.3°C). Weather in June »

Weather in July

July in Perris, California, is a tropical summer month, with average temperature varying between 88.2°F (31.2°C) and 61.9°F (16.6°C). In July, the average high-temperature is practically the same as in June - a tropical 88.2°F (31.2°C). Weather in July »

Weather in August

August, the last month of the summer, in Perris, is another tropical month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 89.6°F (32°C). The warmest month is August, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 63.3°F (17.4°C). In August, the average heat index is evaluated at a tropical 92.7°F (33.7°C). Weather in August »

Weather in September

September, the first month of the autumn, in Perris, is still a warm month, with average temperature varying between 61.3°F (16.3°C) and 85.8°F (29.9°C). In Perris, California, the average high-temperature is relatively the same as in August - a warm 85.8°F (29.9°C). Weather in September »

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). 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). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Perris, California, with temperature in the range of an average low of 48.4°F (9.1°C) and an average high of 69.1°F (20.6°C). In Perris, California, the average high-temperature marginally drops, from a moderately hot 77.9°F (25.5°C) in October, to an agreeable 69.1°F (20.6°C). Weather in November »

Weather in December

December, the first month of the winter, in Perris, is still a comfortable month, with average temperature varying between 43°F (6.1°C) and 61°F (16.1°C). The coldest month is December, with an average high-temperature of 61°F (16.1°C) and an average low-temperature of 43°F (6.1°C). Weather in December »
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FAQ

How many days does it rain in Perris?

Throughout the year, there are 55.7 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

How much does it snow in Perris?

In Perris, during the entire year, snow aggregates up to 0.04" (1mm).

When it does not snow in Perris?

January, March through December are months without snowfall.

When does it snow in Perris?

The only month with snowfall is February.

When does it snow the most in Perris?

The month with the most snowfall is February when snow falls for 0.2 days and typically aggregates up to 0.04" (1mm) of snow.

What is the most humid month in Perris?

May is the most humid month in Perris, with an average relative humidity of 60%.

What is the driest month in Perris?

The month with the least rainfall in Perris, California, is June when the rain falls for 1.3 days and typically collects 0.04" (1mm) of precipitation.

When are the longest days in Perris?

The month with the longest days in Perris, California, is June, with an average of 14.4h of daylight.

What month has the most sunshine in Perris?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Perris, California.

When is the highest UV index in Perris?

With an average maximum UV index of 7, July is the month with the highest UV index in Perris.

What is the warmest month in Perris?

August is the warmest month in Perris, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 63.3°F (17.4°C).

What is the least humid month in Perris?

August is the least humid month in Perris, California, with an average relative humidity of 47%.

What is the coldest month in Perris?

With an average high-temperature of 61°F (16.1°C) and an average low-temperature of 43°F (6.1°C), December is the coldest month.

What is the rainiest month in Perris?

December is the month with the most rainfall. Rain falls for 6.5 days and accumulates 1.38" (35mm) of precipitation.

What is the month with the shortest days in Perris?

The month with the shortest days is December, with an average of 9.9h of daylight.

What is the month with the least sunshine in Perris?

The month with the least sunshine is December, with an average of 6.7h of sunshine.

What is the month with the lowest UV index in Perris?

The month with the lowest UV index in Perris, California, is December, with an average maximum UV index of 3.

Average temperature
Perris, CA

Average temperature - Perris, CA

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).

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
Perris, CA

Average pressure - Perris, CA

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
Perris, CA

Average wind speed - Perris, CA

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 rainfall
Perris, CA

Average rainfall - Perris, CA

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
Perris, CA

Average rainfall days - Perris, CA

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
Perris, CA

Average snowfall - Perris, CA

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
Perris, CA

Average snowfall days - Perris, CA

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 / Average sunshine
Perris, CA

Average daylight / Average sunshine - Perris, CA

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

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
Perris, CA

Average sunshine days - Perris, CA

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 visibility
Perris, CA

Average visibility - Perris, CA

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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