2025 Compare Climate & Weather:
Chatham township, NJ vs San Luis Obispo, CA

Highlights

On average, there are 287 sunny days per year in San Luis Obispo. Chatham township averages 206 sunny days per year. The US average is 205 sunny days.

San Luis Obispo, California gets 20 inches of rain, on average, per year. Chatham township, New Jersey gets 50.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

San Luis Obispo averages 0 inches of snow per year. Chatham township averages 25.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

San Luis Obispo, California
Summer High: the July high is around 73.7 degrees
Winter Low: the January low is 42.8
Rain: averages 20 inches of rain a year
Snow: averages 0 inches of snow a year

Chatham township, New Jersey
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 19.2
Rain: averages 50.4 inches of rain a year
Snow: averages 25.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for San Luis Obispo is 8.8 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Chatham is 7.1 (10=best), which means it is less comfortable than most places in New Jersey.

Today's Weather - Chatham township, NJ

46°F

Today's Weather - San Luis Obispo, CA

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Chatham township / San Luis Obispo

July is the hottest month for Chatham with an average high temperature of 85.3°, which ranks it as about average compared to other places in New Jersey. In Chatham, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chatham are September, June and May.

September is the hottest month for San Luis Obispo with an average high temperature of 75.3°, which ranks it as one of the coolest places in California. In San Luis Obispo, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Luis Obispo are September, August and July.

January has the coldest nighttime temperatures for Chatham with an average of 19.2°. This is colder than most places in New Jersey.

December has the coldest nighttime temperatures for San Luis Obispo with an average of 42.2°. This is warmer than most places in California.

In Chatham, there are 17.5 days annually when the high temperature is over 90°, which is about average compared to other places in New Jersey.

In San Luis Obispo, there are 6.3 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Chatham, there are 122.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Jersey.

In San Luis Obispo, there are 3.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Chatham, there are 1.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.

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

July is the wettest month in Chatham with 4.8 inches of rain, and the driest month is February with 3.0 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 50.4 inches in Chatham means that it is one of the wettest places in New Jersey.


February is the wettest month in San Luis Obispo with 4.2 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 20.0 inches in San Luis Obispo means that it is about average compared to other places in California.

May is the rainiest month in Chatham with 11.9 days of rain, and February is the driest month with only 8.3 rainy days. There are 118.4 rainy days annually in Chatham, which is rainier than most places in New Jersey. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

February is the rainiest month in San Luis Obispo with 9.2 days of rain, and July is the driest month with only 0.4 rainy days. There are 50.5 rainy days annually in San Luis Obispo, which is about average compared to other places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 3% chance of a rainy day.

An annual snowfall of 25.1 inches in Chatham means that it is snowier than most places in New Jersey.

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

February is the snowiest month in Chatham with 8.0 inches of snow, and 6 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in San Luis Obispo.