2024 Compare Climate & Weather:
Chester, CA vs Grass Valley, CA
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Highlights
On average, there are 243 sunny days per year in Grass Valley. Chester averages 243 sunny days per year. The US average is 205 sunny days.
Grass Valley, California gets 55 inches of rain, on average, per year. Chester, California gets 40.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Grass Valley averages 11.3 inches of snow per year. Chester averages 121.4 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Grass Valley, California
Summer High: the July high is around 87.2 degrees
Winter Low: the January low is 34.2
Rain: averages 55 inches of rain a year
Snow: averages 11.3 inches of snow a year
Chester, California
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 22.3
Rain: averages 40.7 inches of rain a year
Snow: averages 121.4 inches of snow a year
BESTPLACES COMFORT INDEX
Grass ValleyThe annual BestPlaces Comfort Index for Grass Valley is 7.9 (10=best), which means it is less comfortable than most places in California.
7.9 / 10
June, September and August are the most pleasant months in Grass Valley, while December and January are the least comfortable months.
ChesterThe annual BestPlaces Comfort Index for Chester is 6.7 (10=best), which means it is one of the least comfortable places in California.
6.7 / 10
August, July and September are the most pleasant months in Chester, while January and December are the least comfortable months.
Today's Weather - Chester, CA
2 AM PST
Mostly Clear
32°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 29° / 67° | NNW 2 mph |
| Tuesday Night | Mostly Clear | 33° / 67° | NW 2 to 9 mph |
| Wednesday Night | Mostly Clear | 34° / 70° | N 2 to 6 mph |
| Thursday Night | Partly Cloudy | 38° / 70° | WNW 2 to 10 mph |
| Friday Night | Mostly Clear | 38° / 71° | WNW 3 to 9 mph |
| Saturday Night | Mostly Clear | 36° / 72° | NW 5 to 10 mph |
| Sunday Night | Partly Cloudy | 36° / 70° | NNW 5 to 10 mph |
Today's Weather - Grass Valley, CA
2 AM PST
Clear
46°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Clear | 42° / 67° | NE 5 mph |
| Tuesday Night | Mostly Clear | 47° / 70° | SE 5 mph |
| Wednesday Night | Mostly Clear | 49° / 72° | NNE 2 to 6 mph |
| Thursday Night | Partly Cloudy | 49° / 71° | ESE 3 to 9 mph |
| Friday Night | Mostly Clear | 48° / 71° | SSE 6 to 9 mph |
| Saturday Night | Mostly Clear | 48° / 72° | E 6 to 9 mph |
| Sunday Night | Partly Cloudy | 48° / 71° | E 6 to 10 mph |
Average Monthly High / Low (°F)
| Month | Chester, CA | Grass Valley, CA |
|---|
| January | 41° / 22° | 52° / 34° |
| February | 44° / 23° | 54° / 35° |
| March | 50° / 27° | 57° / 38° |
| April | 57° / 30° | 62° / 41° |
| May | 66° / 36° | 71° / 47° |
| June | 75° / 42° | 79° / 54° |
| July | 84° / 47° | 87° / 59° |
| August | 83° / 45° | 87° / 58° |
| September | 77° / 40° | 81° / 53° |
| October | 65° / 34° | 71° / 46° |
| November | 49° / 27° | 57° / 38° |
| December | 41° / 23° | 50° / 34° |
Hot, Freezing, Rainy, Snowy Days: Chester / Grass Valley
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 29 / 12 | 12 / 13 | 7 / 1 |
| February | 0 / 0 | 26 / 8 | 11 / 12 | 6 / 1 |
| March | 0 / 0 | 26 / 5 | 11 / 12 | 5 / 1 |
| April | 0 / 0 | 20 / 2 | 9 / 9 | 3 / 1 |
| May | 0 / 1 | 9 / 0 | 7 / 6 | 0 / 0 |
| June | 1 / 3 | 1 / 0 | 4 / 3 | 0 / 0 |
| July | 6 / 11 | 0 / 0 | 1 / 0 | 0 / 0 |
| August | 5 / 9 | 0 / 0 | 1 / 1 | 0 / 0 |
| September | 1 / 4 | 2 / 0 | 3 / 2 | 0 / 0 |
| October | 0 / 1 | 13 / 0 | 6 / 5 | 0 / 0 |
| November | 0 / 0 | 23 / 5 | 10 / 10 | 3 / 0 |
| December | 0 / 0 | 28 / 12 | 12 / 12 | 6 / 1 |
July is the hottest month for Chester with an average high temperature of 83.9°, which ranks it as cooler than most places in California. In Chester, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chester are September, June and August.
July is the hottest month for Grass Valley with an average high temperature of 87.2°, which ranks it as about average compared to other places in California. In Grass Valley, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grass Valley are June, September and May.
January has the coldest nighttime temperatures for Chester with an average of 22.3°. This is one of the coldest places in California.
December has the coldest nighttime temperatures for Grass Valley with an average of 34.0°. This is colder than most places in California.
In Chester, there are 11.9 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Grass Valley, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Chester, there are 176.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.
In Grass Valley, there are 45.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.
In Chester, there are 0.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.
In Grass Valley, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
December is the wettest month in Chester with 7.3 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 50% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 40.7 inches in Chester means that it is wetter than most places in California.
December is the wettest month in Grass Valley with 10.4 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 53% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 55.0 inches in Grass Valley means that it is one of the wettest places in California.
December is the rainiest month in Chester with 11.5 days of rain, and July is the driest month with only 1.0 rainy days. There are 83.2 rainy days annually in Chester, which is one of the rainiest places in California. The rainiest season is Spring when it rains 40% of the time and the driest is Autumn with only a 7% chance of a rainy day.
January is the rainiest month in Grass Valley with 12.7 days of rain, and July is the driest month with only 0.3 rainy days. There are 83.8 rainy days annually in Grass Valley, which is one of the rainiest places in California. The rainiest season is Spring when it rains 44% of the time and the driest is Autumn with only a 4% chance of a rainy day.
An annual snowfall of 121.4 inches in Chester means that it is one of the snowiest places in California.
An annual snowfall of 11.3 inches in Grass Valley means that it is snowier than most places in California.
January is the snowiest month in Chester with 31.1 inches of snow, and 8 months of the year have significant snowfall.
February is the snowiest month in Grass Valley with 3.7 inches of snow, and 6 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Chester 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Chester
Reviews for Grass Valley 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Grass Valley
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