2025 Compare Climate & Weather:
Casa Grande, AZ vs Sierra Vista, AZ

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Highlights

On average, there are 284 sunny days per year in Sierra Vista. Casa Grande averages 295 sunny days per year. The US average is 205 sunny days.

Sierra Vista, Arizona gets 15.2 inches of rain, on average, per year. Casa Grande, Arizona gets 8.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sierra Vista averages 1.2 inches of snow per year. Casa Grande averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sierra Vista, Arizona
Summer High: the July high is around 91.5 degrees
Winter Low: the January low is 34.2
Rain: averages 15.2 inches of rain a year
Snow: averages 1.2 inches of snow a year

Casa Grande, Arizona
Summer High: the July high is around 106.8 degrees
Winter Low: the January low is 36.9
Rain: averages 8.9 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index
Sierra Vista

The annual BestPlaces Comfort Index for Sierra Vista is 8.4 (10=best), which means it is one of the most pleasant places in Arizona.

8.4 / 10
October, May and April are the most pleasant months in Sierra Vista, while July and January are the least comfortable months.

Casa Grande

The annual BestPlaces Comfort Index for Casa Grande is 7.2 (10=best), which means it is less comfortable than most places in Arizona.

7.2 / 10
March, November and April are the most pleasant months in Casa Grande, while July and August are the least comfortable months.

Today's Weather - Casa Grande, AZ

1 PM PST

Sunny

98°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSunny99° / 69°E 15 mph
SundayMostly Sunny101° / 70°SE 10 mph
MondayMostly Sunny99° / 69°SSW 5 to 20 mph
TuesdayMostly Sunny91° / 59°SW 5 to 20 mph
WednesdaySunny82° / 55°W 5 to 10 mph
ThursdaySunny87° / 57°SW 5 mph
FridaySunny90° / 59°SW 5 to 10 mph
Today's Weather - Sierra Vista, AZ

1 PM PST

Sunny

79°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSunny84° / 59°E 15 to 23 mph
SundaySunny90° / 64°ESE 7 to 16 mph
MondayMostly Sunny88° / 65°SSW 6 to 20 mph
TuesdayPatchy Blowing Dust85° / 60°SW 14 to 28 mph
WednesdayMostly Sunny79° / 53°WSW 9 to 18 mph
ThursdaySunny82° / 53°SSW 2 to 15 mph
FridaySunny83° / 54°SSW 3 to 15 mph
Average Monthly High / Low (°F)
MonthCasa Grande, AZSierra Vista, AZ
January68° / 37°61° / 34°
February72° / 40°64° / 37°
March79° / 44°70° / 41°
April87° / 51°77° / 47°
May97° / 59°85° / 55°
June105° / 68°93° / 63°
July107° / 76°92° / 66°
August105° / 75°89° / 65°
September101° / 68°87° / 61°
October90° / 56°79° / 51°
November77° / 43°69° / 41°
December67° / 36°61° / 35°
Hot, Freezing, Rainy, Snowy Days: Casa Grande / Sierra Vista
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 08 / 124 / 40 / 0
February0 / 03 / 64 / 40 / 0
March3 / 01 / 33 / 30 / 0
April12 / 10 / 12 / 20 / 0
May26 / 80 / 01 / 20 / 0
June30 / 220 / 01 / 30 / 0
July31 / 190 / 04 / 110 / 0
August31 / 130 / 05 / 120 / 0
September29 / 80 / 03 / 50 / 0
October17 / 10 / 02 / 30 / 0
November2 / 02 / 32 / 20 / 0
December0 / 09 / 103 / 30 / 0
July is the hottest month for Casa Grande with an average high temperature of 106.8°, which ranks it as warmer than most places in Arizona. In Casa Grande, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Casa Grande are March, November and February.

June is the hottest month for Sierra Vista with an average high temperature of 93.0°, which ranks it as cooler than most places in Arizona. In Sierra Vista, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sierra Vista are October, April and May.
December has the coldest nighttime temperatures for Casa Grande with an average of 36.2°. This is warmer than most places in Arizona.

January has the coldest nighttime temperatures for Sierra Vista with an average of 34.2°. This is about average compared to other places in Arizona.

In Casa Grande, there are 178.2 days annually when the high temperature is over 90°, which is one of the hottest places in Arizona.

In Sierra Vista, there are 72.1 days annually when the high temperature is over 90°, which is cooler than most places in Arizona.

In Casa Grande, there are 22.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Sierra Vista, there are 35.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Arizona.

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

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

August is the wettest month in Casa Grande with 1.5 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 33% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 8.9 inches in Casa Grande means that it is drier than most places in Arizona.


August is the wettest month in Sierra Vista with 3.7 inches of rain, and the driest month is May with 0.3 inches. The wettest season is Autumn with 50% of yearly precipitation and 9% occurs in Summer, which is the driest season. The annual rainfall of 15.2 inches in Sierra Vista means that it is wetter than most places in Arizona.

August is the rainiest month in Casa Grande with 4.6 days of rain, and June is the driest month with only 0.5 rainy days. There are 31.8 rainy days annually in Casa Grande, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 33% of the time and the driest is Summer with only a 19% chance of a rainy day.

August is the rainiest month in Sierra Vista with 11.6 days of rain, and May is the driest month with only 1.5 rainy days. There are 53.2 rainy days annually in Sierra Vista, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 47% of the time and the driest is Summer with only a 11% chance of a rainy day.

There is rarely any recorded snowfall in Casa Grande, ranking it as one of the least snowy places in Arizona.

An annual snowfall of 1.2 inches in Sierra Vista means that it is about average compared to other places in Arizona.
Any measurable snowfall is a rare occurance in Casa Grande.

January is the snowiest month in Sierra Vista with 0.5 inches of snow, and 1 month 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 Casa Grande    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 Casa Grande

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Reviews for Sierra Vista    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 Sierra Vista

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Zips In Casa Grande, Arizona
85122, 85194
Zips In SIERRA VISTA, ARIZONA
85635, 85613
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