Riverside
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Riverside, CA

A dusk view of the neon-lit buildings of Riverside, California, and a part of the dusk sky and a silhouette of the high mountain in the back
A dusk view of the neon-lit buildings of Riverside, California, and a part of the dusk sky and a silhouette of the high mountain in the back
January, the same as December, is another enjoyable winter month in Riverside, California, with average temperature ranging between max 65.3°F (18.5°C) and min 47.3°F (8.5°C). In January, the average high-temperature is practically the same as in December - a still comfortable 65.3°F (18.5°C). Weather in January »

The last month of the winter, February, is another comfortable month in Riverside, California, with average temperature varying between 65.1°F (18.4°C) and 46°F (7.8°C). In Riverside, the average high-temperature is almost the same as in January - a still comfortable 65.1°F (18.4°C). Weather in February »

March, the first month of the spring, in Riverside, is an agreeable month, with average temperature ranging between min 47.5°F (8.6°C) and max 68.7°F (20.4°C). In Riverside, the average high-temperature in March is practically the same as in February - a pleasant 68.7°F (20.4°C). Weather in March »

April, the same as March, in Riverside, California, is another pleasant spring month, with average temperature ranging between max 73°F (22.8°C) and min 50.5°F (10.3°C). In Riverside, the average high-temperature in April is essentially the same as in March - a still agreeable 73°F (22.8°C). Weather in April »

The last month of the spring, May, is a moderately hot month in Riverside, California, with average temperature varying between 76.6°F (24.8°C) and 54°F (12.2°C). In May, the average high-temperature is practically the same as in April - a warm 76.6°F (24.8°C). Weather in May »

June, the first month of the summer, in Riverside, is still a warm month, with average temperature fluctuating between 84.2°F (29°C) and 58.6°F (14.8°C). In Riverside, the average high-temperature in June marginally rises, from a warm 76.6°F (24.8°C) in May, to a still moderately hot 84.2°F (29°C). Weather in June »

July in Riverside, California, is a tropical summer month, with average temperature varying between 64.8°F (18.2°C) and 90.1°F (32.3°C). In July, the average high-temperature marginally rises, from a moderately hot 84.2°F (29°C) in June, to a hot 90.1°F (32.3°C). Weather in July »

The last month of the summer, August, is another hot month in Riverside, California, with average temperature ranging between max 91.2°F (32.9°C) and min 66.4°F (19.1°C). With an average high-temperature of 91.2°F (32.9°C) and an average low-temperature of 66.4°F (19.1°C), August is the warmest month. In August, the average heat index is appraised at a tropical 93.7°F (34.3°C). Weather in August »

September, the first month of the autumn, in Riverside, is still a hot month, with average temperature ranging between max 88.3°F (31.3°C) and min 64°F (17.8°C). In September, the average high-temperature is relatively the same as in August - a still tropical 88.3°F (31.3°C). Weather in September »

October, like September, in Riverside, California, is another warm autumn month, with average temperature varying between 79.5°F (26.4°C) and 57.9°F (14.4°C). In October, the average high-temperature slightly decreases, from a tropical 88.3°F (31.3°C) in September, to a warm 79.5°F (26.4°C). Weather in October »

November, the last month of the autumn, in Riverside, is also an agreeable month, with average temperature ranging between min 52°F (11.1°C) and max 71.4°F (21.9°C). In November, the average high-temperature slightly decreases, from a warm 79.5°F (26.4°C) in October, to a pleasant 71.4°F (21.9°C). Weather in November »

December, the first month of the winter, in Riverside, is also an enjoyable month, with average temperature fluctuating between 45.9°F (7.7°C) and 63.3°F (17.4°C). December is the coldest month, with an average high-temperature of 63.3°F (17.4°C) and an average low-temperature of 45.9°F (7.7°C). Weather in December »

How many days does it rain in Riverside?

In Riverside, California, during the entire year, the rain falls for 49 days and collects up to 7.32" (186mm) of precipitation.

How many days does it snow in Riverside?

Throughout the year, in Riverside, California, there are 0.1 snowfall days.

When it does not snow in Riverside?

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

What is the wettest month in Riverside?

Months with the most rainfall are February and December, with an average 1.61" (41mm) of precipitation.

When does it snow in Riverside?

February is the only month when snow falls in Riverside.

When does it snow the most in Riverside?

The month with the most snowfall days is February when snow falls for 0.1 days.

What is the month with the least sunshine in Riverside?

Months with the least sunshine are February and December, with an average of 6.8h of sunshine.

What is the most humid month in Riverside?

The most humid month in Riverside is May, with an average relative humidity of 56%.

What is the driest month in Riverside?

June is the month with the least rainfall in Riverside. Rain falls for 1.1 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Riverside?

With an average of 14.4h of daylight, June has the longest days of the year in Riverside, California.

What are the months with the most sunshine in Riverside?

Months with the most sunshine in Riverside are July and August, with an average of 12.1h of sunshine.

When is the highest UV index in Riverside?

July and August, with an average maximum UV index of 7, are months with the highest UV index in Riverside, California.

What is the warmest month in Riverside?

With an average high-temperature of 91.2°F (32.9°C) and an average low-temperature of 66.4°F (19.1°C), August is the warmest month in Riverside, California.

What is the least humid month in Riverside?

With an average relative humidity of 43%, August is the least humid month.

What is the coldest month in Riverside?

With an average high-temperature of 63.3°F (17.4°C) and an average low-temperature of 45.9°F (7.7°C), December is the coldest month.

What is the month with the shortest days in Riverside?

December has the shortest days of the year in Riverside, California, with an average of 9.9h of daylight.

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

December is the month with the lowest UV index in Riverside, California, with an average maximum UV index of 3.
Average temperature - Riverside, CA
Average rainfall - Riverside, CA

Wettest months (with the highest rainfall) are February and December (1.61").
The driest month (with the lowest rainfall) is June (0.04").

Average rainfall days - Riverside, CA

The month with the highest number of rainy days is March (7.7 days).
The month with the lowest number of rainy days is June (1.1 days).

Average snowfall days - Riverside, CA

The month with the highest number of snowfall days is February (0.1 days).
Months with the lowest number of snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight / Average sunshine - Riverside, CA

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

Months with most sunshine are July and August (Average sunshine: 12.1h).
Months with least sunshine are February and December (Average sunshine: 6.8).