Second Mesa, AZ climate
Second Mesa has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 19°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Second Mesa feels like
Winter
Spring
Summer
Fall
Second Mesa weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 44° | 19° | 0.8" | 24° – 37° |
| February | 50° | 23° | 0.8" | 31° – 42° |
| March | 58° | 29° | 0.8" | 39° – 48° |
| April | 66° | 34° | 0.4" | 44° – 55° |
| May | 76° | 42° | 0.4" | 52° – 63° |
| June | 87° | 51° | 0.1" | 64° – 73° |
| July | 90° | 59° | 1.1" | 70° – 78° |
| August | 88° | 58° | 1.4" | 69° – 78° |
| September | 81° | 50° | 1.0" | 61° – 69° |
| October | 69° | 37° | 0.8" | 49° – 58° |
| November | 55° | 26° | 0.5" | 34° – 47° |
| December | 43° | 18° | 0.7" | 24° – 37° |
| Year | 67° | 37° | 8.8" |
“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 Second Mesa
Second Mesa gets 9 inches of rain and melted snow a year. August is the wettest month and June the driest.
About 147 frost-free days a year
In half of years the last 32° night comes by May 16 and the first one by October 10. That leaves about 147 frost-free days for gardens, shorter than 83% of U.S. towns.
Heating and cooling a home in Second Mesa
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Second Mesa, 91% of that work is heating and 9% is cooling, so the furnace matters far more than the air conditioner.
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.
How Second Mesa 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 Second Mesa averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.5°). The shift is larger than in 59% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Second Mesa’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 34° to 47°. July is the most reliable, staying within 8°.
Common questions about Second Mesa’s climate
What is the coldest month in Second Mesa?
December, with a typical high of 43° and a low of 18°.
What is the hottest month in Second Mesa?
July, with a typical high of 90° and a low of 59°. About 31 days a year reach 90°.
When is the first frost in Second Mesa?
In half of years the first 32° night comes by October 10, and the last spring frost by May 16.
What is the rainiest month in Second Mesa?
August, with 1.4 inches of rain and melted snow. The year totals 9 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Second Mesa itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Keams Canyon, AZ (17 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.