Casa Grande, AZ weather and climate in 2025
Day
40 °C
Night
20 °C
Sea
0 °C
Precipitation
2 mm
in month
Rainy days
1 days
in month
Daylight
14 hours
average
Sunshine
13 hours
average
Humidity
20 %
Day
40 °C
Night
20 °C
Sea
0 °C
Precipitation
2 mm
in month
Rainy days
1 days
in month
Daylight
14 hours
average
Sunshine
13 hours
average
Humidity
20 %
Overview: Casa Grande, AZ
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.Weather charts for Casa Grande, AZ
Find more destinations like this
Closest destinations for Casa Grande, AZ
Closest cities for Casa Grande, AZ
Weather overview for Casa Grande, AZ
Weather overview
Casa Grande in Arizona, with its Sonoran Desert climate, offers hot summers and mild winters. The temperatures peak in July with a scorching 41 °C (106 °F), while cool relief can be found in December, January, and February with daytime highs in the lower 20 °C (68 °F) range. Rainfall is a rare commodity in this desert town, particularly striking in June when it averages merely 2 mm (0.06 in). The dry air, showcased by an average relative humidity around 20 % in June, couples with long sunny days throughout the year.
January weather
January in Casa Grande is known for its pleasant days and crisp nights. With an average night temperature of 3 °C (38 °F), you can expect chilly evenings. The daytime temperature warms up to 20 °C (68 °F), setting the tone for comfortable outdoor activities. The month also typically sees about 4 days of rainfall.
February weather
February sees a slight uptick in daily temperatures in Casa Grande, reaching approximately 22 °C (72 °F). Nights remain cool with 5 °C (41 °F) on average. Casa Grande typically enjoys clear skies this month, with rare rain occurrences totaling about 4 days.
March weather
March heralds the approach of spring with daytime temperatures ascending to a comfortable 25 °C (78 °F). Nights are cool but not cold, averaging 8 °C (46 °F). Rain is still a rare event in Casa Grande, with the area experiencing only about 4 days of rainfall.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.April weather
In April, Casa Grande's desert heats up with daytime highs reaching 30 °C (86 °F), inviting residents and visitors to enjoy warm outdoor excursions. At night, the temperature cools down to an average of 11 °C (51 °F). The arid climate continues with a scarce 2 days of rain.
May weather
May turns the heat up in Casa Grande as temperatures soar to an average high of 35 °C (95 °F). The nights offer respite with average lows at 16 °C (60 °F). The dry conditions persist with just over 1 day of rainfall and extremely low humidity.
June weather
Casa Grande experiences its driest month in June, with the heat peaking at an average of 40 °C (104 °F) during the day. With minimal rainfall at just 2 mm (0.06 in) and a night-time average of 20 °C (68 °F), the heat is on, but the nights offer a cooler, comfortable climate.
July weather
July arrives with the highest average temperatures for Casa Grande at a scorching 41 °C (106 °F). Evening temperatures remain warm at 25 °C (76 °F). Stepping into the monsoon season, the area sees an increase in rainy days with about 6 days of precipitation.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.August weather
Casa Grande's weather in August mirrors that of July, with high day temperatures around 40 °C (104 °F) and humid nights averaging 24 °C (75 °F). Given the monsoon season, there are about 7 days of rainy days, which can bring sudden thunderstorms.
September weather
September marks the beginning of a gradual cooldown in Casa Grande, though days still remain hot with an average peak of 38 °C (100 °F). Night temperatures average a more bearable 20 °C (69 °F). Monsoon season tapers off, but the place still sees around 4 days of rain.
October weather
October offers more respite from the heat in Casa Grande with average high temperatures around 32 °C (90 °F), making it a pleasant month for various fall activities. The evening chill sets in with averages of 14 °C (56 °F). The desert also starts to dry up again with only around 2 days of precipitation.
November weather
In November, the mild climate settles in over Casa Grande with day temperatures slipping to a comfortable 25 °C (78 °F). Nighttime cools off to an average low of 7 °C (45 °F), excellent for cozy evenings. The desert maintains its dry persona with only 2 days of rain.
December weather
December brings the coolest daytime temperatures of the year to Casa Grande, with averages peaking at 20 °C (67 °F). The nights can be cold, averaging 3 °C (38 °F). There's an uptick in wet weather during the winter month with an average of 4 days of rainfall.
FAQs
How many layers should I wear in Casa Grande during January?
In January in Casa Grande, you'd want to dress in layers due to chilly nights averaging 3 °C (38 °F) and comfortably warm days around 20 °C (68 °F). Layering allows you to adjust to the temperature swings throughout the day.
Is February significantly warmer than January in Casa Grande?
February in Casa Grande is marginally warmer than January, with daytime temperatures increasing to an average high of 22 °C (72 °F), ensuring an extra degree of warmth for outdoor enjoyment.
What kind of outdoor activities are suitable for March in Casa Grande?
March weather in Casa Grande is ideal for outdoor activities like hiking or golfing, with beautiful daytime highs around 25 °C (78 °F) and the desert flora beginning to bloom.
How do the temperatures in Casa Grande change from March to April?
The transition from March to April in Casa Grande welcomes a noticeable warm-up, with daily temperatures jumping to a toasty 30 °C (86 °F), signalling the onset of the desert's warm season.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.How hot does it get in Casa Grande during May?
May in Casa Grande starts to sizzle with daytime temperatures rocketing to a sweltering 35 °C (95 °F), signaling the impending summer heat.
Should I expect any rain in June in Casa Grande?
Rain in June in Casa Grande is nearly non-existent, with an average of less than 2 mm (0.06 in) of rainfall, making it exceptionally dry.
Is July the hottest month in Casa Grande?
Indeed, July stands as the apex of heat in Casa Grande with mercury climbing to a blistering 41 °C (106 °F), making indoor activities or poolside relaxation preferred choices.
Does August see a continuation of the monsoon season in Casa Grande?
August in Casa Grande does continue the monsoon trend with similar conditions to July, including increased rainfall averaging around 7 days of rain.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.As September arrives, does the temperature in Casa Grande begin to decrease?
With the arrival of September, Casa Grande starts to inch towards cooler weather, but daytime temperatures remain quite high, averaging 38 °C (100 °F).
Is October an enjoyable month to spend time outdoors in Casa Grande?
October’s moderate temperatures, averaging 32 °C (90 °F), make it a delightful time for outdoor activities and enjoying the mild Autumn climate of Casa Grande.
Can I expect cold nights in Casa Grande in November?
Nights in November do grow cooler in Casa Grande, dipping to an average of 7 °C (45 °F), so you might want a sweater or light jacket for evening outings.
What are the chances of having a white Christmas in Casa Grande?
A white Christmas is highly unlikely in Casa Grande with its desert climate. December may be cooler with an average high of 20 °C (67 °F), but snowfall is extremely rare if not almost non-existent.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.