Whetstone, AZ climate
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.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Whetstone feels like
Winter
Spring
Summer
Fall
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 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Whetstone
Whetstone gets 14 inches of rain and melted snow a year. July is the wettest month and May the driest. Rain or snow falls on about 51 days a year.
About 237 frost-free days a year
In half of years the last 32° night comes by March 20 and the first one by November 15. That leaves about 237 frost-free days for gardens, longer than 88% of U.S. towns.
Heating and cooling a home in Whetstone
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Whetstone, 62% of that work is heating and 38% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Whetstone and its neighbors
Whetstone borders 2 towns with climate data. January nights across them vary by 1.1°. Huachuca City has both the coldest January nights (31°) and the hottest July afternoons (92°). Whetstone’s January low is 33° and its July high 93°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Whetstone compares
Compared with every U.S. town and city on TownTapestry, each counted once.
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°). The shift is larger than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Whetstone’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature 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.
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.