Whetstone has mild winters and hot summers, with very little rain
A typical July afternoon reaches 93°, a January night drops to 33°, and snow is almost unheard of.
A year in Whetstone at a glance
Each month’s typical high and low, and what it brings.
What stands out about Whetstone’s climate
Read from where Whetstone sits among Arizona’s towns. The page puts what stands out first.
Rain and snow in Whetstone
July is the wettest month and May the driest. Rain or snow falls on about 51 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
About 0.4" in a normal year, so most winters see none.
What a year in Whetstone feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 237 frost-free days a year
In half of years the last 32° night comes by March 20 and the first by November 15.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Whetstone’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
237 frost-free days. The last frost comes by Mar 20 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 15.
About 0.4" in a normal winter.
Months averaging under 55° run from November through February. Heating is 62% of the year’s heating-and-cooling load.
About 79 days a year reach 90°, and July afternoons average 93°.
The nicest months are April and October. 54 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Whetstone and its neighbors
Huachuca City has the coldest January nights next door (31°) and Huachuca City the hottest July afternoons (92°). Tap a town to see its climate.
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 Whetstone averaged 1.5° warmer than the 1900s. The biggest change is in March (+2.4°).
A bigger shift than in 72% of U.S. towns.
Change by month
How Whetstone compares
Against every U.S. town on TownTapestry, each counted once, with its place in Arizona.
Whetstone weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 62° | 33° | 0.9" | 0.4" | 4 | 0 | 42° – 52° |
| February | 65° | 35° | 0.9" | 0 | 4 | 0 | 45° – 55° |
| March | 71° | 39° | 0.6" | 0 | 2 | 0 | 50° – 60° |
| April | 78° | 44° | 0.3" | 0 | 1 | 0 | 56° – 66° |
| May | 86° | 52° | 0.2" | 0 | 1 | 0 | 63° – 73° |
| June | 95° | 61° | 0.4" | 0 | 2 | 0 | 73° – 81° |
| July | 93° | 66° | 3.5" | 0 | 12 | 0 | 77° – 83° |
| August | 91° | 65° | 3.1" | 0 | 11 | 0 | 75° – 84° |
| September | 89° | 59° | 1.8" | 0 | 5 | 0 | 70° – 77° |
| October | 81° | 49° | 0.7" | 0 | 3 | 0 | 62° – 68° |
| November | 70° | 38° | 0.7" | 0 | 2 | 0 | 47° – 62° |
| December | 61° | 32° | 0.9" | 0 | 3 | 0 | 42° – 52° |
| Year | 79° | 48° | 13.8" | 0.4" | 51 | 0 |
Heating and cooling a home in Whetstone
62% of the work is heating.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 47° to 62°. July is the most reliable, staying within 6°.
Common questions about Whetstone’s climate
What is the coldest month in Whetstone?
December, with a typical high of 61° and a low of 32°.
What is the hottest month in Whetstone?
June, with a typical high of 95° and a low of 61°. About 79 days a year reach 90°.
How much snow does Whetstone get?
Almost none. A normal year brings 0.4 inches.
When is the first frost in Whetstone?
In half of years the first 32° night comes by November 15, and the last spring frost by March 20.
What is the rainiest month in Whetstone?
July, with 3.5 inches of rain and melted snow. The year totals 14 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Whetstone.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Whetstone itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sierra Vista, AZ (13 mi, snow) and Kartchner Caverns, AZ (9 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.