Douglas, AZ climate
Douglas has mild winters and hot summers, with very little rain. A typical July afternoon reaches 94°, a January night drops to 31°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Douglas feels like
Winter
Spring
Summer
Fall
Douglas 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 | 63° | 31° | 0.8" | 0.2" | 3 | 0 | 42° – 51° |
| February | 67° | 34° | 0.7" | 0.1" | 4 | 0 | 45° – 56° |
| March | 73° | 39° | 0.6" | 0 | 2 | 0 | 52° – 60° |
| April | 80° | 44° | 0.1" | 0 | 1 | 0 | 57° – 67° |
| May | 88° | 52° | 0.2" | 0 | 1 | 0 | 64° – 75° |
| June | 97° | 62° | 0.6" | 0 | 2 | 0 | 74° – 82° |
| July | 94° | 67° | 3.1" | 0 | 9 | 0 | 77° – 83° |
| August | 93° | 66° | 3.0" | 0 | 9 | 0 | 76° – 85° |
| September | 90° | 60° | 1.3" | 0 | 4 | 0 | 71° – 78° |
| October | 82° | 48° | 0.7" | 0 | 3 | 0 | 62° – 70° |
| November | 72° | 37° | 0.6" | 0.1" | 2 | 0 | 49° – 61° |
| December | 62° | 31° | 0.9" | 0.1" | 3 | 0 | 42° – 50° |
| Year | 80° | 48° | 12.6" | 0.5" | 42 | 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 Douglas
Douglas gets 13 inches of rain and melted snow a year. July is the wettest month and April the driest. Rain or snow falls on about 42 days a year.
About 235 frost-free days a year
In half of years the last 32° night comes by March 18 and the first one by November 13. That leaves about 235 frost-free days for gardens, longer than 87% of U.S. towns.
Heating and cooling a home in Douglas
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Douglas, 52% of that work is heating and 48% 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.
How Douglas 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 Douglas averaged 1.7° warmer than the 1900s. The biggest change is in March (+2.3°). The shift is larger than in 79% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Douglas’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 49° to 61°. July is the most reliable, staying within 6°.
Common questions about Douglas’s climate
What is the coldest month in Douglas?
December, with a typical high of 62° and a low of 31°.
What is the hottest month in Douglas?
June, with a typical high of 97° and a low of 62°. About 116 days a year reach 90°.
How much snow does Douglas get?
Almost none. A normal year brings 0.5 inches.
When is the first frost in Douglas?
In half of years the first 32° night comes by November 13, and the last spring frost by March 18.
What is the rainiest month in Douglas?
July, with 3.1 inches of rain and melted snow. The year totals 13 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Douglas itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mc Neal, AZ (16 mi, snow) and Douglas, AZ (4 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.