August is the hottest month for Rialto with an average high temperature of 96.0°, which ranks it as warmer than most places in California. In Rialto, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rialto are April, May and November.

July is the hottest month for Sacramento with an average high temperature of 92.6°, which ranks it as about average compared to other places in California. In Sacramento, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sacramento are October, May and April.

December has the coldest nighttime temperatures for Rialto with an average of 40.9°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Sacramento with an average of 38.6°. This is about average compared to other places in California.

In Rialto, there are 102.2 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Sacramento, there are 71.2 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Rialto, there are 3.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Sacramento, there are 12.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

In Rialto, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In Sacramento, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

February is the wettest month in Rialto with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 14.4 inches in Rialto means that it is drier than most places in California.


February is the wettest month in Sacramento with 3.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 19.9 inches in Sacramento means that it is about average compared to other places in California.

February is the rainiest month in Rialto with 7.1 days of rain, and August is the driest month with only 0.6 rainy days. There are 40.1 rainy days annually in Rialto, which is less rainy than most places in California. The rainiest season is Spring when it rains 46% of the time and the driest is Autumn with only a 5% chance of a rainy day.

January is the rainiest month in Sacramento with 11.2 days of rain, and July is the driest month with only 0.1 rainy days. There are 62.7 rainy days annually in Sacramento, which is rainier than most places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 3% chance of a rainy day.

There is rarely any recorded snowfall in Rialto, ranking it as one of the least snowy places in California.

There is rarely any recorded snowfall in Sacramento, ranking it as one of the least snowy places in California.

Any measurable snowfall is a rare occurance in Rialto.

Any measurable snowfall is a rare occurance in Sacramento.

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