2025 Compare Climate & Weather:
Holtville, CA vs Ajo, AZ

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Highlights

On average, there are 286 sunny days per year in Ajo. Holtville averages 315 sunny days per year. The US average is 205 sunny days.

Ajo, Arizona gets 8.1 inches of rain, on average, per year. Holtville, California gets 2.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ajo averages 0.1 inches of snow per year. Holtville averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ajo, Arizona
Summer High: the July high is around 103.5 degrees
Winter Low: the January low is 43.8
Rain: averages 8.1 inches of rain a year
Snow: averages 0.1 inches of snow a year

Holtville, California
Summer High: the July high is around 106.8 degrees
Winter Low: the January low is 41.7
Rain: averages 2.8 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

Ajo

The annual BestPlaces Comfort Index for Ajo is 7.4 (10=best), which means it is less comfortable than most places in Arizona.

7.4 / 10

November, April and March are the most pleasant months in Ajo, while August and July are the least comfortable months.

Holtville

The annual BestPlaces Comfort Index for Holtville is 7.5 (10=best), which means it is less comfortable than most places in California.

7.5 / 10

March, November and April are the most pleasant months in Holtville, while August and July are the least comfortable months.

Average Monthly High / Low (°F)

Month	Holtville, CA	Ajo, AZ
January	70° / 42°	68° / 44°
February	74° / 45°	71° / 46°
March	80° / 50°	77° / 50°
April	86° / 55°	85° / 56°
May	95° / 62°	93° / 64°
June	103° / 69°	101° / 71°
July	107° / 77°	104° / 77°
August	106° / 78°	102° / 77°
September	101° / 71°	99° / 72°
October	90° / 60°	89° / 62°
November	78° / 48°	77° / 51°
December	69° / 41°	67° / 44°

Hot, Freezing, Rainy, Snowy Days: Holtville / Ajo

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	1 / 1	2 / 3	0 / 0
February	0 / 0	0 / 1	2 / 3	0 / 0
March	3 / 2	0 / 0	2 / 3	0 / 0
April	9 / 8	0 / 0	1 / 1	0 / 0
May	24 / 20	0 / 0	0 / 1	0 / 0
June	29 / 29	0 / 0	0 / 1	0 / 0
July	31 / 31	0 / 0	1 / 4	0 / 0
August	31 / 30	0 / 0	2 / 6	0 / 0
September	28 / 27	0 / 0	1 / 3	0 / 0
October	17 / 15	0 / 0	1 / 2	0 / 0
November	1 / 2	0 / 0	1 / 2	0 / 0
December	0 / 0	1 / 1	2 / 3	0 / 0

July is the hottest month for Holtville with an average high temperature of 106.8°, which ranks it as one of the hottest places in California. In Holtville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Holtville are November, March and February.

July is the hottest month for Ajo with an average high temperature of 103.5°, which ranks it as warmer than most places in Arizona. In Ajo, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ajo are March, November and April.

December has the coldest nighttime temperatures for Holtville with an average of 41.0°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Ajo with an average of 43.8°. This is one of the warmest places in Arizona.

In Holtville, there are 173.1 days annually when the high temperature is over 90°, which is one of the hottest places in California.

In Ajo, there are 164.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Holtville, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Ajo, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Arizona.

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

January is the wettest month in Holtville with 0.5 inches of rain, and the driest month is May with 0.0 inches. The wettest season is Spring with 46% of yearly precipitation and 14% occurs in Summer, which is the driest season. The annual rainfall of 2.8 inches in Holtville means that it is one of the driest places in California.

August is the wettest month in Ajo with 1.9 inches of rain, and the driest month is May with 0.0 inches. The wettest season is Autumn with 37% of yearly precipitation and 13% occurs in Summer, which is the driest season. The annual rainfall of 8.1 inches in Ajo means that it is drier than most places in Arizona.

February is the rainiest month in Holtville with 2.4 days of rain, and June is the driest month with only 0.1 rainy days. There are 14.1 rainy days annually in Holtville, which is one of the least rainy places in California. The rainiest season is Spring when it rains 46% of the time and the driest is Autumn with only a 15% chance of a rainy day.

August is the rainiest month in Ajo with 6.1 days of rain, and June is the driest month with only 0.5 rainy days. There are 30.2 rainy days annually in Ajo, which is less rainy than most places in Arizona. The rainiest season is Autumn when it rains 34% of the time and the driest is Summer with only a 15% chance of a rainy day.

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

An annual snowfall of 0.1 inches in Ajo means that it is less snowy than most places in Arizona.

Any measurable snowfall is a rare occurance in Holtville.

January is the snowiest month in Ajo with 0.1 inches of snow, and no 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 Holtville 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 Holtville

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Reviews for Ajo 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 Ajo

See all reviews

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2025 Compare Climate & Weather:
Holtville, CA vs Ajo, AZ

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Holtville / Ajo

December has the coldest nighttime temperatures for Holtville with an average of 41.0°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Ajo with an average of 43.8°. This is one of the warmest places in Arizona.

In Holtville, there are 173.1 days annually when the high temperature is over 90°, which is one of the hottest places in California.

In Ajo, there are 164.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Holtville, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Ajo, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Arizona.

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

An annual snowfall of 0.1 inches in Ajo means that it is less snowy than most places in Arizona.

Any measurable snowfall is a rare occurance in Holtville.

January is the snowiest month in Ajo with 0.1 inches of snow, and no months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Holtville 2 Reviews

Reviews for Ajo 2 Reviews

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2025 Compare Climate & Weather:Holtville, CA vs Ajo, AZ

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Holtville / Ajo

December has the coldest nighttime temperatures for Holtville with an average of 41.0°. This is warmer than most places in California.January has the coldest nighttime temperatures for Ajo with an average of 43.8°. This is one of the warmest places in Arizona.

In Holtville, there are 173.1 days annually when the high temperature is over 90°, which is one of the hottest places in California.In Ajo, there are 164.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Holtville, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.In Ajo, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Arizona.

There is rarely any recorded snowfall in Holtville, ranking it as one of the least snowy places in California.An annual snowfall of 0.1 inches in Ajo means that it is less snowy than most places in Arizona.

Any measurable snowfall is a rare occurance in Holtville.January is the snowiest month in Ajo with 0.1 inches of snow, and no months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Holtville 2 Reviews

Reviews for Ajo 2 Reviews

Most Recent Searches On Compare Climate & Weather

Compare Cost of Living

Zips In Holtville, California

Zips In AJO, ARIZONA

Learn More About HOLTVILLE, CALIFORNIA

Learn More About Ajo, Arizona

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BestPlaces Tools

About BestPlaces

Follow Us

2025 Compare Climate & Weather:
Holtville, CA vs Ajo, AZ

December has the coldest nighttime temperatures for Holtville with an average of 41.0°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Ajo with an average of 43.8°. This is one of the warmest places in Arizona.

In Holtville, there are 173.1 days annually when the high temperature is over 90°, which is one of the hottest places in California.

In Ajo, there are 164.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Holtville, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Ajo, there are 2.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Arizona.

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

An annual snowfall of 0.1 inches in Ajo means that it is less snowy than most places in Arizona.

Any measurable snowfall is a rare occurance in Holtville.

January is the snowiest month in Ajo with 0.1 inches of snow, and no months of the year have significant snowfall.