Casa Grande weather in October: Casa Grande, Arizona: normal highs, lows, rain and records for October
Casa Grande in October has a normal high of 91°F and a normal low of 57°F, a daily mean of 74°F, falling from 96°F on the 1st to 85°F by the 31st. Measurable precipitation falls on 2 days in a normal October, 0.48 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 33°C and low of 14°C, 12 mm of precipitation in October.
- NOAA stationCasa Grande
- Station IDUSC00021306
- Location32.89°N 111.71°W
- Elevation1,400 ft (427 m)
- From the center3 miles
- Population68,927
- Jan 69° 39°
- Feb 73° 42°
- Mar 80° 47°
- Apr 88° 53°
- May 96° 60°
- Jun 106° 70°
- Jul 107° 78°
- Aug 105° 77°
- Sep 100° 71°
- Oct 91° 57°
- Nov 78° 45°
- Dec 68° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Casa Grande in October?
The normal high is 91°F and the normal low 57°F, for a daily mean of 73.8°F. October is 11.7°F cooler than September and 12.4°F warmer than November. October is the 6th warmest month of the year in Casa Grande and the 8th wettest. Across the month the normal high falls 11°F, from 96°F on October 1 to 85°F on October 31. From one year to the next October's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 72°F and 76°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 7%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 96°F | 64°F | 6% | 3% |
| October 8 | 94°F | 60°F | 6% | 3% |
| October 15 | 91°F | 57°F | 6% | 3% |
| October 22 | 89°F | 54°F | 7% | 4% |
| October 31 | 85°F | 51°F | 7% | 4% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 96°F | 64°F | 6% | 3% | 11 h 50 min |
| October 2 | 96°F | 64°F | 6% | 3% | 11 h 50 min |
| October 3 | 95°F | 63°F | 6% | 3% | 11 h 50 min |
| October 4 | 95°F | 62°F | 6% | 3% | 11 h 50 min |
| October 5 | 95°F | 62°F | 6% | 3% | 11 h 50 min |
| October 6 | 94°F | 61°F | 6% | 3% | 11 h 40 min |
| October 7 | 94°F | 61°F | 6% | 3% | 11 h 40 min |
| October 8 | 94°F | 60°F | 6% | 3% | 11 h 40 min |
| October 9 | 93°F | 60°F | 6% | 3% | 11 h 40 min |
| October 10 | 93°F | 60°F | 6% | 3% | 11 h 40 min |
| October 11 | 93°F | 59°F | 6% | 3% | 11 h 30 min |
| October 12 | 92°F | 59°F | 6% | 3% | 11 h 30 min |
| October 13 | 92°F | 58°F | 6% | 3% | 11 h 30 min |
| October 14 | 92°F | 58°F | 6% | 3% | 11 h 30 min |
| October 15 | 91°F | 57°F | 6% | 3% | 11 h 30 min |
| October 16 | 91°F | 57°F | 6% | 3% | 11 h 20 min |
| October 17 | 91°F | 56°F | 6% | 3% | 11 h 20 min |
| October 18 | 90°F | 56°F | 6% | 3% | 11 h 20 min |
| October 19 | 90°F | 55°F | 7% | 3% | 11 h 20 min |
| October 20 | 89°F | 55°F | 7% | 3% | 11 h 20 min |
| October 21 | 89°F | 55°F | 7% | 4% | 11 h 10 min |
| October 22 | 89°F | 54°F | 7% | 4% | 11 h 10 min |
| October 23 | 88°F | 54°F | 7% | 4% | 11 h 10 min |
| October 24 | 88°F | 53°F | 7% | 4% | 11 h 10 min |
| October 25 | 88°F | 53°F | 7% | 4% | 11 h 10 min |
| October 26 | 87°F | 53°F | 7% | 4% | 11 h |
| October 27 | 87°F | 52°F | 7% | 4% | 11 h |
| October 28 | 86°F | 52°F | 7% | 4% | 11 h |
| October 29 | 86°F | 51°F | 7% | 4% | 11 h |
| October 30 | 85°F | 51°F | 7% | 4% | 11 h |
| October 31 | 85°F | 51°F | 7% | 4% | 10 h 50 min |
- Normal high
- 91°FOctober average
- Normal low
- 57°FOctober average
- Precipitation
- 0.48 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 19
- Daylight
- 11 h 50 min to 10 h 50 minOctober 1 to October 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 28
- Sunshine
- 94%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00021306; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Casa Grande in October?
On a given October day the chance of 0.01 inch or more is 6% on average, highest around October 29 (7%). In all, 0.48 in falls on 2 days of a normal October.
In a normal October in Casa Grande, 19 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00021306.
What are the records for October in Casa Grande?
The warmest October temperature on this station's record (since 1903) is 110°F, on October 1, 2024; the coldest is 27°F, on October 14, 1906. The wettest October brought 5.08 in (1957).
The October mean against the 1991-2020 normal of 73.8°F: 2024 78.6°F (+4.8), 2025 74.5°F (+0.7). 2 of 2 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2024 | 78.6°F | +4.8°F | 0.00 in |
| 2025 | 74.5°F | +0.7°F | 1.46 in |
Source: records: ACIS, station USC00021306; recent months: ACIS, station USC00021306. Records and recent months use complete months only.
How does October in Casa Grande compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, October normal highs run from 61°F in Greer to 93°F in Gila Bend; Casa Grande's is 91°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Casa Grande in September100°F by day, 71°F at night
- Casa Grande in November78°F by day, 45°F at night
- Casa Grande through the yearEvery month, frost dates, records and recent years
- Arizona in OctoberThe statewide normal and the warmest and coolest places
- Gila Bend: Arizona's warmest Octobernormal high 93°F