Climate and monthly weather forecastPerris, CA
Climate and monthly weather forecast
Weather in January
January, like December, in Perris, California, is another refreshing winter month, with an average temperature varying between 44.2°F (6.8°C) and 63.5°F (17.5°C). As Perris welcomes January, the average high-temperature stabilizes at a still refreshing 63.5°F (17.5°C), showing little deviation from December's 61°F (16.1°C). Weather in January »Weather in February
The last month of the winter, February, is also an enjoyable month in Perris, California, with an average temperature fluctuating between 63°F (17.2°C) and 43.2°F (6.2°C). February begins with an average high-temperature of a still enjoyable 63°F (17.2°C), reflecting close similarity to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Perris, is still a refreshing month, with an average temperature ranging between max 66.7°F (19.3°C) and min 45.1°F (7.3°C). As February transitions into March, Perris records an average high-temperature of a still comfortable 66.7°F (19.3°C), showing a gentle shift from the preceding month. Weather in March »Weather in April
April in Perris, California, is an agreeable spring month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 47.8°F (8.8°C). In April, the average high-temperature registers at an agreeable 70.7°F (21.5°C), nearly identical to March's 66.7°F (19.3°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Perris, California, with an average temperature ranging between max 74.3°F (23.5°C) and min 51.3°F (10.7°C). April's transformation into May witnesses an average high-temperature of a moderately hot 74.3°F (23.5°C), noting a minor change from the preceding month. Weather in May »Weather in June
June, the first month of the summer in Perris, is still a warm month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 82.9°F (28.3°C). Perris perceives a slight temperature ascent during June, with average high-temperatures adjusting 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 is a tropical summer month in Perris, California, with an average temperature fluctuating between 61.9°F (16.6°C) and 88.2°F (31.2°C). Perris's shift into July is marked by a subtle change to a tropical 88.2°F (31.2°C) from June's 82.9°F (28.3°C) in temperature. Weather in July »Weather in August
The last month of the summer, August, is another hot month in Perris, California, with an average temperature varying between 89.6°F (32°C) and 63.3°F (17.4°C). Perris's August weather, marked by an average high temperature of 89.6°F (32°C) and an average low temperature of 63.3°F (17.4°C), is the warmest in the year. In August, the average heat index is estimated at a tropical 93.2°F (34°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Perris, California, with an average temperature varying between 61.3°F (16.3°C) and 85.8°F (29.9°C). During September, Perris records an average high-temperature of a moderately hot 85.8°F (29.9°C), marking a slight divergence from August's 89.6°F (32°C). Weather in September »Weather in October
October, like September, in Perris, California, is another warm autumn month, with an average temperature ranging between max 77.9°F (25.5°C) and min 54.5°F (12.5°C). The arrival of October is marked by a minor reduction in average high-temperature, sliding from 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
November, the last month of the autumn in Perris, is another pleasant month, with an average temperature ranging between min 48.4°F (9.1°C) and max 69.1°F (20.6°C). Perris's progression into November involves a gentle drop in the average high-temperature, 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
The first month of the winter, December, is still a comfortable month in Perris, California, with an average temperature fluctuating between 43°F (6.1°C) and 61°F (16.1°C). December, characterized by an average high temperature of 61°F (16.1°C) and a low temperature of 43°F (6.1°C), is generally the coldest month. Weather in December »Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Perris, during the entire year, the rain falls for 55.7 days and collects up to 7.05" (179mm) of precipitation.
In Perris, snow does not fall in January, March through December.
Throughout the year, 0.04" (1mm) of snow is accumulated.
The only month with snowfall is February.
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.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
With an average relative humidity of 60%, May is the most humid month.
June is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.04" (1mm) of precipitation.
June has the longest days of the year, with an average of 14h and 24min of daylight.
The month with the most sunshine is July, with an average of 12.1h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 7.
Perris, California, notes the warmest temperatures in August, with a average high of 89.6°F (32°C) and a low of 63.3°F (17.4°C).
The least humid month is August, with an average relative humidity of 47%.
December, with its high-temperature average of 61°F (16.1°C) and a low-temperature average of 43°F (6.1°C), is the coldest month.
December is the month with the most rainfall. Rain falls for 6.5 days and accumulates 1.38" (35mm) of precipitation.
The month with the shortest days is December, with an average of 10h and 0min of daylight.
December has the least sunshine of the year, with an average of 6.7h of sunshine.
The month with the lowest UV index is December, with an average maximum UV index of 3.
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).
Average pressure
Perris, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.07"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).
Average wind speed
Perris, CA
- Average wind speed in January:
5mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.3mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.2mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.8mph
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).
Average humidity
Perris, CA
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Perris, CA
- Average rainfall in January:
0.79" - Average rainfall in February:
1.34" - Average rainfall in March:
0.75" - Average rainfall in April:
0.55" - Average rainfall in May:
0.35" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.31" - Average rainfall in September:
0.2" - Average rainfall in October:
0.24" - Average rainfall in November:
0.67" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Perris, CA
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
5.8 days - Average rainfall days in May:
4.6 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
5 days - Average rainfall days in August:
3.8 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
3.3 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
6.5 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).
Average snowfall
Perris, CA
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").
Average snowfall days
Perris, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
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).
Average daylight / Average sunshine
Perris, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
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 48min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 36min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 24min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 36min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 42min
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).
Average sunshine days
Perris, CA
- Average sunshine days in January:
24.1 days - Average sunshine days in February:
21.6 days - Average sunshine days in March:
23.3 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
23.2 days - Average sunshine days in June:
26.9 days
- Average sunshine days in July:
21.9 days - Average sunshine days in August:
24.5 days - Average sunshine days in September:
23.4 days - Average sunshine days in October:
26.1 days - Average sunshine days in November:
25.1 days - Average sunshine days in December:
23.5 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).
Average UV index
Perris, CA
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Perris, CA
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).
Average visibility
Perris, CA
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).
