Casa Grande weather in April

In April, Casa Grande sees average daytime highs of 85°F and overnight lows near 57°F, with 0.2 in of rain across 1.1 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 82°F in the first days to 89°F by the end. The sky is clear or mostly clear about 72% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 18 min by month's end. Set against the rest of the year, April is Casa Grande's 5th-clearest and 1st-windiest month. For the whole year in context, see Casa Grande's year-round climate.

Daytime high
85°
7th warmest
Overnight low
57°
6th coldest
Rainfall
0.2 in
1.1 wet days
Daylight
12 h 48 min
6:03 AM – 6:52 PM
Cloud cover
26%
5th clearest
Wind
6 mph
1st windiest
Solar energy
7.46 kWh/m²
Travel score
6.8
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 82°F in the first days to 89°F by the end.

A typical April day in Casa Grande reaches about 85°F in the afternoon and slips back to 57°F overnight — a 28°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 95°F. Set against its neighbours, April runs about 7°F warmer than March and about 9°F cooler than May.

40°60°80°100°151015202530
Avg high (°F)Avg low (°F)
18154
28154
38255
48255
58255
68255
78355
88355
98356
108356
118456
128456
138456
148556
158557
168557
178657
188658
198658
208758
218758
228759
238859
248860
258960
268960
278961
288961
299061
309062

How April really feels in Casa Grande

Once humidity and wind are folded in, April averages 2 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
2
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Casa Grande weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 10th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 11% of April, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27723
37723
47822
57822
67921
78020
88020
98020
108020
118119
128119
138218
148218
158317
168317
178416
188416
198416
208515
218515
228515
238614
248614
258614
268713
278713
288713
298713
308713

Chance of precipitation in April

Any precipitation

Casa Grande gets around 0.2 in of rain over 1.1 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 7% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
17
27
36
46
55
65
75
84
94
104
114
123
133
143
153
163
173
183
193
203
213
223
233
242
252
262
272
282
292
302

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 6 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 6:23 AM to 5:47 AM, and sunset from 6:41 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:236:41
212.36:216:42
312.46:206:42
412.46:196:43
512.46:176:44
612.56:166:44
712.56:156:45
812.56:136:46
912.66:126:47
1012.66:116:47
1112.66:096:48
1212.76:086:49
1312.76:076:49
1412.76:056:50
1512.86:046:51
1612.86:036:52
1712.86:026:52
1812.96:006:53
1912.95:596:54
2012.95:586:55
2113.05:576:55
2213.05:566:56
2313.05:546:57
2413.15:536:57
2513.15:526:58
2613.15:516:59
2713.25:507:00
2813.25:497:00
2913.25:487:01
3013.35:477:02

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 7.46 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 — April's 7.46 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.9Intense
36.9Intense
47.0Intense
57.0Intense
67.1Intense
77.1Intense
87.2Intense
97.2Intense
107.3Intense
117.3Intense
127.3Intense
137.4Intense
147.4Intense
157.5Intense
167.5Intense
177.5Intense
187.6Intense
197.6Intense
207.6Intense
217.7Intense
227.7Intense
237.7Intense
247.8Intense
257.8Intense
267.8Intense
277.8Intense
287.9Intense
297.9Intense
307.9Intense
Planning a trip in April

Is April a good time to visit Casa Grande?

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

6.8
Sightseeing
6th-best month of the year
8.7
Beach & pool
1st-best month of the year

April is a reasonable time to visit Casa Grande for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Casa Grande in April

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

In April, Casa Grande sees daytime highs around 85°F and nights near 57°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Casa Grande in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 (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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).