Photo: Brian Basgen · CC BY-SA 3.0Sahuarita reaches 100° on about 54 days a year, more than all but 136 U.S. towns
Midwinter brings lows of about 37°. It is a dry place: less rain and snow fall here than on 96% of U.S. towns. Compared with 1901–2000, the average now sits 1.4° higher. Garden planting can start around February 25; autumn frost returns near November 27.
A year in Sahuarita at a glance
Each month’s typical high and low, and what it brings.
What stands out about Sahuarita’s climate
Compared with towns across the U.S., with Sahuarita’s place in Arizona beside it.
What a year in Sahuarita feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 276 frost-free days a year
In half of years the last 32° night comes by February 25 and the first by November 27. Frost and day counts come from NOAA’s station at Green Valley, AZ, 3 miles from the town’s center, 110 ft higher.
The 2023 USDA map puts Sahuarita’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 25°. 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 12 inches of rain a year
July is the wettest month and May the driest. Rain falls on about 51 days a year. Snow is rare: about 0.1" in a normal year at Green Valley, AZ, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Sahuarita
36% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Green Valley, AZ.
Living with Sahuarita’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
276 frost-free days in zone 9a. The last frost comes by Feb 25 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 27.
Months with highs of 62–84° and lows of 40° or more: March, April and November. 50 miles of trails are waiting.
Parks & trails →Heat waves are 36% of the yearly building losses FEMA expects in Sahuarita from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Sahuarita and similar climates
TownRatings has no climate map of the towns around Sahuarita yet.
Climates most like Sahuarita’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 |
|---|---|---|---|---|
| Sahuarita, AZ | 37° | 99° | 12" | 0.1" |
| Orange Cove, CA | 39° | 98° | 12" | 0.0" |
| Ivins, UT | 32° | 100° | 11" | 1.2" |
| Monahans, TX | 30° | 98° | 12" | 0.7" |
| Summerlin South, NV | 35° | 102° | 5" | 0.2" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Sahuarita averaged 1.4° warmer than the 1900s. The biggest change is in March (+2.2°).
A bigger shift than in 51% 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 Sahuarita compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Sahuarita’s place among Arizona’s.
Sahuarita weather by month
Highs, lows and precipitation from NOAA’s grid at Sahuarita’s center; snow, wet days and snow on the ground from Green Valley, AZ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 67° | 37° | 0.8" | 0.0" | 4 | 0 | 47° – 57° |
| February | 69° | 39° | 0.8" | 0.0" | 4 | 0 | 49° – 60° |
| March | 75° | 44° | 0.5" | 0.1" | 3 | 0 | 54° – 65° |
| April | 83° | 49° | 0.3" | 0.0" | 2 | 0 | 60° – 70° |
| May | 91° | 57° | 0.1" | 0.0" | 1 | 0 | 68° – 78° |
| June | 100° | 66° | 0.2" | 0.0" | 2 | 0 | 78° – 86° |
| July | 99° | 72° | 2.5" | 0.0" | 10 | 0 | 83° – 88° |
| August | 97° | 71° | 2.3" | 0.0" | 10 | 0 | 82° – 89° |
| September | 94° | 66° | 1.6" | 0.0" | 5 | 0 | 76° – 82° |
| October | 86° | 54° | 0.8" | 0.0" | 3 | 0 | 67° – 74° |
| November | 75° | 43° | 0.7" | 0.0" | 2 | 0 | 51° – 66° |
| December | 66° | 37° | 1.0" | 0.0" | 4 | 0 | 47° – 56° |
| Year | 84° | 53° | 11.7" | 0.1" | 51 | 0 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 51° to 66°. July is the most reliable, staying within 6°.
Where Sahuarita’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 Sahuarita’s center.
- Snow: Green Valley, AZ.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Green Valley, AZ, 3 miles from the town’s center, 110 ft higher; 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 Sahuarita’s climate
What is the weather like in Sahuarita?
A typical July afternoon reaches 99°, a January night drops to 37°, and snow is almost unheard of. Milder January nights than 85% of U.S. towns; hotter July afternoons than all but 156 U.S. towns.
How cold does it get in Sahuarita in winter?
December nights average 37°. About 24 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 47°.
How much snow does Sahuarita get?
About 0.1 inches in a normal winter at Green Valley, AZ, so most winters see none.
How hot does it get in Sahuarita?
July, with a typical high of 99° and a low of 72°. About 151 days a year reach 90° and 54 reach 100° (Green Valley, AZ).
When is the first and last frost in Sahuarita?
In half of years the last spring frost (32°) comes by February 25 and the first fall frost by November 27, about 276 frost-free days, at Green Valley, AZ.
What growing zone is Sahuarita in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 25°.
What is the best time of year to visit Sahuarita?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Sahuarita getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 51% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Sahuarita.
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.