August is the hottest month for Pleasanton with an average high temperature of 85.4°, which ranks it as cooler than most places in California. In Pleasanton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pleasanton are June, October and May.

September is the hottest month for Rohnert Park with an average high temperature of 82.7°, which ranks it as cooler than most places in California. In Rohnert Park, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rohnert Park are October, June and May.

January has the coldest nighttime temperatures for Pleasanton with an average of 39.3°. This is warmer than most places in California.

December has the coldest nighttime temperatures for Rohnert Park with an average of 38.0°. This is about average compared to other places in California.

In Pleasanton, there are 36.0 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Rohnert Park, there are 25.0 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Pleasanton, there are 11.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Rohnert Park, there are 18.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

In Pleasanton, 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 Rohnert Park, 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 Pleasanton with 3.5 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 18.7 inches in Pleasanton means that it is about average compared to other places in California.


December is the wettest month in Rohnert Park with 6.0 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 31.6 inches in Rohnert Park means that it is wetter than most places in California.

December is the rainiest month in Pleasanton with 11.0 days of rain, and July is the driest month with only 0.2 rainy days. There are 64.0 rainy days annually in Pleasanton, 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 2% chance of a rainy day.

January is the rainiest month in Rohnert Park with 12.6 days of rain, and July is the driest month with only 0.2 rainy days. There are 75.2 rainy days annually in Rohnert Park, which is rainier than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 2% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Pleasanton.

Any measurable snowfall is a rare occurance in Rohnert Park.

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