2025 Compare Climate & Weather:
Casey, IL vs Ukiah, CA

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Highlights

On average, there are 215 sunny days per year in Ukiah. Casey averages 196 sunny days per year. The US average is 205 sunny days.

Ukiah, California gets 40.5 inches of rain, on average, per year. Casey, Illinois gets 43.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ukiah averages 0 inches of snow per year. Casey averages 14.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ukiah, California
Summer High: the July high is around 91.8 degrees
Winter Low: the January low is 36.5
Rain: averages 40.5 inches of rain a year
Snow: averages 0 inches of snow a year

Casey, Illinois
Summer High: the July high is around 86.5 degrees
Winter Low: the January low is 20.5
Rain: averages 43.3 inches of rain a year
Snow: averages 14.1 inches of snow a year

BestPlaces Comfort Index

Ukiah

The annual BestPlaces Comfort Index for Ukiah is 7.9 (10=best), which means it is less comfortable than most places in California.

7.9 / 10

June, May and October are the most pleasant months in Ukiah, while December and January are the least comfortable months.

Casey

The annual BestPlaces Comfort Index for Casey is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

7.2 / 10

September, May and June are the most pleasant months in Casey, while January and December are the least comfortable months.

Average Monthly High / Low (°F)

Month	Casey, IL	Ukiah, CA
January	37° / 21°	56° / 37°
February	42° / 24°	60° / 38°
March	54° / 33°	64° / 40°
April	66° / 44°	69° / 42°
May	75° / 53°	77° / 47°
June	83° / 62°	83° / 52°
July	87° / 66°	92° / 56°
August	85° / 64°	91° / 54°
September	79° / 56°	87° / 50°
October	67° / 45°	77° / 45°
November	53° / 35°	62° / 40°
December	40° / 24°	55° / 36°

Hot, Freezing, Rainy, Snowy Days: Casey / Ukiah

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	26 / 10	8 / 13	4 / 0
February	0 / 0	22 / 5	8 / 12	2 / 0
March	0 / 0	15 / 2	10 / 11	1 / 0
April	0 / 1	4 / 1	11 / 8	0 / 0
May	0 / 3	0 / 0	11 / 5	0 / 0
June	4 / 7	0 / 0	10 / 2	0 / 0
July	8 / 19	0 / 0	8 / 0	0 / 0
August	7 / 18	0 / 0	7 / 0	0 / 0
September	2 / 12	0 / 0	7 / 2	0 / 0
October	0 / 3	3 / 0	8 / 5	0 / 0
November	0 / 0	12 / 4	10 / 11	0 / 0
December	0 / 0	24 / 11	10 / 13	3 / 0

July is the hottest month for Casey with an average high temperature of 86.5°, which ranks it as warmer than most places in Illinois. In Casey, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Casey are September, May and June.

July is the hottest month for Ukiah with an average high temperature of 91.8°, which ranks it as about average compared to other places in California. In Ukiah, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ukiah are October, May and June.

January has the coldest nighttime temperatures for Casey with an average of 20.5°. This is warmer than most places in Illinois.

December has the coldest nighttime temperatures for Ukiah with an average of 35.9°. This is colder than most places in California.

In Casey, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Ukiah, there are 62.0 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Casey, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Ukiah, there are 31.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Casey, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

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

May is the wettest month in Casey with 4.6 inches of rain, and the driest month is February with 2.4 inches. The wettest season is Summer with 28% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 43.3 inches in Casey means that it is wetter than most places in Illinois.

December is the wettest month in Ukiah with 7.8 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 40.5 inches in Ukiah means that it is wetter than most places in California.

May is the rainiest month in Casey with 11.3 days of rain, and September is the driest month with only 6.8 rainy days. There are 106.9 rainy days annually in Casey, which is about average compared to other places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Winter with only a 23% chance of a rainy day.

December is the rainiest month in Ukiah with 13.4 days of rain, and July is the driest month with only 0.2 rainy days. There are 81.2 rainy days annually in Ukiah, which is rainier than most places in California. The rainiest season is Spring when it rains 47% of the time and the driest is Autumn with only a 2% chance of a rainy day.

An annual snowfall of 14.1 inches in Casey means that it is less snowy than most places in Illinois.

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

January is the snowiest month in Casey with 5.5 inches of snow, and 4 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Ukiah.

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 Casey 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

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Reviews for Ukiah 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 Ukiah

See all reviews

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2025 Compare Climate & Weather:
Casey, IL vs Ukiah, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Casey / Ukiah

January has the coldest nighttime temperatures for Casey with an average of 20.5°. This is warmer than most places in Illinois.

December has the coldest nighttime temperatures for Ukiah with an average of 35.9°. This is colder than most places in California.

In Casey, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Ukiah, there are 62.0 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Casey, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Ukiah, there are 31.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Casey, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

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

An annual snowfall of 14.1 inches in Casey means that it is less snowy than most places in Illinois.

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

January is the snowiest month in Casey with 5.5 inches of snow, and 4 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Ukiah.

DID YOU KNOW?

Reviews for Casey 2 Reviews

Reviews for Ukiah 2 Reviews

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2025 Compare Climate & Weather:Casey, IL vs Ukiah, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Casey / Ukiah

January has the coldest nighttime temperatures for Casey with an average of 20.5°. This is warmer than most places in Illinois.December has the coldest nighttime temperatures for Ukiah with an average of 35.9°. This is colder than most places in California.

In Casey, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.In Ukiah, there are 62.0 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Casey, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.In Ukiah, there are 31.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Casey, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.In Ukiah, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

An annual snowfall of 14.1 inches in Casey means that it is less snowy than most places in Illinois.There is rarely any recorded snowfall in Ukiah, ranking it as one of the least snowy places in California.

January is the snowiest month in Casey with 5.5 inches of snow, and 4 months of the year have significant snowfall.Any measurable snowfall is a rare occurance in Ukiah.

DID YOU KNOW?

Reviews for Casey 2 Reviews

Reviews for Ukiah 2 Reviews

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Zips In Casey, Illinois

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2025 Compare Climate & Weather:
Casey, IL vs Ukiah, CA

January has the coldest nighttime temperatures for Casey with an average of 20.5°. This is warmer than most places in Illinois.

December has the coldest nighttime temperatures for Ukiah with an average of 35.9°. This is colder than most places in California.

In Casey, there are 20.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Ukiah, there are 62.0 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Casey, there are 103.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Ukiah, there are 31.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Casey, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

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

An annual snowfall of 14.1 inches in Casey means that it is less snowy than most places in Illinois.

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

January is the snowiest month in Casey with 5.5 inches of snow, and 4 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Ukiah.