The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Grass Valley, CA vs Ann Arbor, MI

2025 Compare Climate & Weather:
Grass Valley, CA vs Ann Arbor, MI

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Highlights

On average, there are 178 sunny days per year in Ann Arbor. Grass Valley averages 243 sunny days per year. The US average is 205 sunny days.

Ann Arbor, Michigan gets 36 inches of rain, on average, per year. Grass Valley, California gets 55 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ann Arbor averages 43 inches of snow per year. Grass Valley averages 11.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ann Arbor, Michigan
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 16.5
Rain: averages 36 inches of rain a year
Snow: averages 43 inches of snow a year

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

BestPlaces Comfort Index
Ann Arbor

The annual BestPlaces Comfort Index for Ann Arbor is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

6.7 / 10
August, July and June are the most pleasant months in Ann Arbor, while January and December are the least comfortable months.

Grass Valley

The 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.

Average Monthly High / Low (°F)
MonthGrass Valley, CAAnn Arbor, MI
January52° / 34°31° / 17°
February54° / 35°35° / 18°
March57° / 38°45° / 26°
April62° / 41°59° / 36°
May71° / 47°70° / 47°
June79° / 54°79° / 56°
July87° / 59°83° / 61°
August87° / 58°81° / 59°
September81° / 53°74° / 51°
October71° / 46°61° / 40°
November57° / 38°48° / 31°
December50° / 34°35° / 22°
Hot, Freezing, Rainy, Snowy Days: Grass Valley / Ann Arbor
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 012 / 2913 / 141 / 10
February0 / 08 / 2612 / 111 / 8
March0 / 05 / 2512 / 111 / 5
April0 / 02 / 99 / 121 / 1
May1 / 00 / 16 / 120 / 0
June3 / 10 / 03 / 110 / 0
July11 / 30 / 00 / 100 / 0
August9 / 10 / 01 / 100 / 0
September4 / 00 / 02 / 100 / 0
October1 / 00 / 65 / 110 / 0
November0 / 05 / 1610 / 120 / 2
December0 / 012 / 2812 / 141 / 8
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.

July is the hottest month for Ann Arbor with an average high temperature of 82.8°, which ranks it as warmer than most places in Michigan. In Ann Arbor, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ann Arbor are June, August and September.
December has the coldest nighttime temperatures for Grass Valley with an average of 34.0°. This is colder than most places in California.

January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

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 Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

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 Ann Arbor, there are 140.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Michigan.

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.

In Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

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.


June is the wettest month in Ann Arbor with 3.7 inches of rain, and the driest month is February with 2.2 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 36.0 inches in Ann Arbor means that it is wetter than most places in Michigan.

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.

December is the rainiest month in Ann Arbor with 13.9 days of rain, and September is the driest month with only 9.6 rainy days. There are 136.9 rainy days annually in Ann Arbor, which is rainier than most places in Michigan. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 11.3 inches in Grass Valley means that it is snowier than most places in California.

An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.
February is the snowiest month in Grass Valley with 3.7 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Ann Arbor with 12.4 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 Grass Valley    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Grass Valley

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Reviews for Ann Arbor    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Ann Arbor

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Zips In Grass Valley, California
95945
Zips In ANN ARBOR, MICHIGAN
48103, 48104, 48105, 48109
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