Casa Grande weather in July

In July, Casa Grande sees average daytime highs of 105°F and overnight lows near 81°F, with 0.8 in of rain across 3.9 wet days and about 13.9 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 105°F through the month. The sky is clear or mostly clear about 63% of the time in July, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Casa Grande's 9th-clearest and 5th-windiest month. For the whole year in context, see Casa Grande's year-round climate.

Daytime high
105°
1st warmest
Overnight low
81°
12th coldest
Rainfall
0.8 in
3.9 wet days
Daylight
14 hours
5:33 AM – 7:32 PM
Cloud cover
36%
9th clearest
Wind
5 mph
5th windiest
Solar energy
7.54 kWh/m²
Travel score
0.0
out of 10

Casa Grande is city in Pinal County, Arizona, United States.

Density
180/km²
people per km²
Founded
1879

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 105°F through the month.

A typical July day in Casa Grande reaches about 105°F in the afternoon and slips back to 81°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 98°F and 111°F. Set against its neighbours, July runs about 2°F warmer than June and about 2°F warmer than August.

70°80°90°100°110°151015202531
Avg high (°F)Avg low (°F)
110679
210680
310680
410680
510680
610680
710681
810681
910681
1010681
1110681
1210581
1310582
1410582
1510582
1610582
1710582
1810582
1910582
2010582
2110582
2210582
2310582
2410582
2510582
2610582
2710582
2810582
2910582
3010582
3110582

How July really feels in Casa Grande

Once humidity and wind are folded in, July averages 31 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
31
31 feel dangerously hot (≥ 102°F)
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Casa Grande weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan67° / 43°1.03.510.17.5
Feb71° / 47°1.13.710.87.8
Mar78° / 52°0.72.711.88.3
Apr85° / 57°0.21.112.86.8
May94° / 65°0.10.613.73.5
Jun104° / 74°0.10.514.10.4
Jul105° / 81°0.83.913.90.0
Aug103° / 81°1.14.313.20.2
Sep99° / 74°0.93.112.21.8
Oct89° / 63°0.52.111.25.5
Nov76° / 51°0.51.810.38.6
Dec66° / 43°0.93.69.97.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 17% of July, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28812
38713
48614
58515
68416
78317
88218
98218
108020
118020
128020
137822
147822
157822
167822
177723
187723
197723
207723
217624
227624
237624
247624
257525
267426
277426
287426
297426
307426
317426

Chance of precipitation in July

Any precipitation

Casa Grande gets around 0.8 in of rain over 3.9 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 15% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
17
27
38
49
59
610
711
811
911
1012
1112
1212
1312
1413
1513
1613
1713
1813
1913
2013
2113
2213
2314
2414
2514
2614
2714
2815
2915
3014
3114

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17312942
270131052
367141153
465141263
563151363
660161374
759161474
855171585
954181585
1052181695
1150191796
1249191796
13481917106
14462018106
15452018106
16432118117
17422119117
18412219127
19402219127
20382319137
21372320147
22362320147
23352320157
24342320167
25332320167
26322421177
27322421177
28312421177
29312421177
30312421176
31312422176

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 5:26 AM to 5:43 AM, and sunset from 7:35 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:267:35
214.15:267:35
314.15:277:35
414.15:277:35
514.15:287:34
614.15:287:34
714.15:297:34
814.15:297:34
914.15:307:34
1014.15:307:34
1114.05:317:33
1214.05:317:33
1314.05:327:33
1414.05:327:33
1514.05:337:32
1614.05:337:32
1714.05:347:31
1813.95:357:31
1913.95:357:31
2013.95:367:30
2113.95:377:30
2213.95:377:29
2313.85:387:28
2413.85:397:28
2513.85:397:27
2613.85:407:27
2713.85:417:26
2813.75:417:25
2913.75:427:25
3013.75:437:24
3113.75:437:23

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.54 kWh/m².

For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 8.47 kWh/m² in June across the year — July's 7.54 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.1Intense
28.1Intense
38.0Intense
48.0Intense
57.9Intense
67.9Intense
77.8Intense
87.8Intense
97.8Intense
107.7Intense
117.7Intense
127.7Intense
137.6Intense
147.6Intense
157.6Intense
167.5Intense
177.5Intense
187.5Intense
197.4Intense
207.4Intense
217.4Intense
227.4Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.2Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in July

Is July a good time to visit Casa Grande?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
12th-best month of the year
2.4
Beach & pool
12th-best month of the year

July is a weaker month for outdoor sightseeing in Casa Grande.

What to pack for Casa Grande in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Casa Grande sees daytime highs around 105°F and nights near 81°F. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Casa Grande in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Casa Grande peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJun 23UV 11Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Casa Grande in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Casa Grande is worst in June — around 28 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1626 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar14Moderate
Apr14Moderate
May14Moderate
Jun28Moderate
Jul14Moderate
Aug13Moderate
Sep13Moderate
Oct12Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Casa Grande?

Casa Grande sits at 32.9°N, 111.8°W, 1,398 ft above sea level, in United States. The nearest listed city is Eloy, 14 mi away.

Topography around Casa Grande

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Casa Grande.

Within 2 miles, the terrain around Casa Grande has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 1,398 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,182 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,928 ft.

The land around Casa Grande is covered by bare terrain (44%) and artificial surfaces (38%) within 2 miles, bare terrain (43%) and shrubs (25%) within 10 miles, and shrubs (59%) and bare terrain (20%) within 50 miles.

2 miles
102 ft
10 miles
2,182 ft
50 miles
4,928 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Eloy 14 mi · Maricopa 21 mi · Florence 24 mi · San Tan Valley 25 mi · Queen Creek 27 mi · Chandler 30 mi · Gilbert 33 mi · Ahwatukee Foothills 35 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Casa Grande (32.8795°, -111.7574°, elevation 1,398 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).