Photo: ZTAT6 · CC BY-SA 4.0Arizona City reaches 100° on about 103 days a year, more than all but 64 U.S. towns
January mornings start at about 39°. From frosty January to warm July, readings climb 67°. By precipitation alone, it ranks drier than almost every U.S. town. For walks and days out, February, March and November bring highs of 71–78°.
A year in Arizona City at a glance
Each month’s typical high and low, and what it brings.
What stands out about Arizona City’s climate
Compared with towns across the U.S., with Arizona City’s place in Arizona State beside it.
What a year in Arizona City feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 266 frost-free days a year
In half of years the last 32° night comes by February 28 and the first by November 21. Frost and day counts come from NOAA’s station at Arizona City, AZ, 1.7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Arizona City’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 23°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 8 inches of rain a year
August is the wettest month and June the driest. Rain falls on about 31 days a year. Snow is rare: about 0.0" in a normal year at Casa Grande, AZ, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Arizona City
36% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Arizona City, AZ.
Living with Arizona City’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
266 frost-free days in zone 9a. The last frost comes by Feb 28 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 21.
Months with highs of 62–84° and lows of 40° or more: February, March and November.
Parks & trails →Of the yearly building losses FEMA expects in Arizona City from natural hazards, river flooding is the largest share (76%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Arizona City and its neighbors
Every town next door is within a degree of Arizona City in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Arizona City’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Arizona City, AZ | 39° | 105° | 8" | 0.0" |
| Henderson, NV | 40° | 105° | 5" | 0.2" |
| Desert Hot Springs, CA | 42° | 105° | 7" | 0.8" |
| St. George, UT | 33° | 103° | 8" | 1.2" |
| Eagle Pass, TX | 41° | 98° | 19" | 0.0" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Arizona City averaged 1.8° warmer than the 1900s. The biggest change is in March (+2.7°).
A bigger shift than in 80% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Arizona City compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Arizona City’s place among Arizona State’s.
Arizona City weather by month
Highs, lows and precipitation from NOAA’s grid at Arizona City’s center; snow, wet days and snow on the ground from Casa Grande, AZ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 68° | 39° | 0.9" | 0.0" | 4 | 0 | 50° – 58° |
| February | 71° | 42° | 0.9" | 0.0" | 4 | 0 | 51° – 61° |
| March | 78° | 47° | 0.8" | 0.0" | 3 | 0 | 55° – 69° |
| April | 86° | 52° | 0.2" | 0.0" | 1 | 0 | 63° – 74° |
| May | 95° | 61° | 0.2" | 0.0" | 1 | 0 | 72° – 83° |
| June | 104° | 70° | 0.1" | 0.0" | 1 | 0 | 81° – 91° |
| July | 105° | 77° | 1.1" | 0.0" | 3 | 0 | 89° – 94° |
| August | 104° | 77° | 1.5" | 0.0" | 5 | 0 | 87° – 94° |
| September | 99° | 70° | 0.9" | 0.0" | 3 | 0 | 81° – 87° |
| October | 89° | 58° | 0.4" | 0.0" | 2 | 0 | 70° – 79° |
| November | 77° | 46° | 0.6" | 0.0" | 2 | 0 | 53° – 68° |
| December | 66° | 38° | 0.9" | 0.0" | 4 | 0 | 49° – 56° |
| Year | 87° | 56° | 8.3" | 0.0" | 31 | 0 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 53° to 68°. July is the most reliable, staying within 5°.
Where Arizona City’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Arizona City’s center.
- Snow: Casa Grande, AZ.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Arizona City, AZ, 1.7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Arizona City’s climate
What is the weather like in Arizona City?
A typical July afternoon reaches 105°, a January night drops to 39°, and snow is almost unheard of. Milder January nights than 87% of U.S. towns; hotter July afternoons than all but 64 U.S. towns.
How cold does it get in Arizona City in winter?
December nights average 38°. About 33 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 49°.
How much snow does Arizona City get?
About 0.0 inches in a normal winter at Casa Grande, AZ, so most winters see none.
How hot does it get in Arizona City?
July, with a typical high of 105° and a low of 77°. About 173 days a year reach 90° and 103 reach 100° (Arizona City, AZ).
When is the first and last frost in Arizona City?
In half of years the last spring frost (32°) comes by February 28 and the first fall frost by November 21, about 266 frost-free days, at Arizona City, AZ.
What growing zone is Arizona City in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 23°.
What is the best time of year to visit Arizona City?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Arizona City getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 80% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Arizona City.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.