Pinal, AZ climate
Pinal has mild winters and hot summers, with very little rain. A typical July afternoon reaches 98°, a January night drops to 34°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Pinal feels like
Winter
Spring
Summer
Fall
Pinal 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 | 60° | 34° | 1.9" | 0 | 5 | 0 | 42° – 52° |
| February | 63° | 36° | 1.9" | 0 | 5 | 0 | 44° – 55° |
| March | 69° | 41° | 1.3" | 0 | 4 | 0 | 48° – 61° |
| April | 77° | 46° | 0.4" | 0 | 3 | 0 | 55° – 67° |
| May | 86° | 53° | 0.4" | 0 | 2 | 0 | 63° – 75° |
| June | 96° | 62° | 0.2" | 0 | 2 | 0 | 73° – 83° |
| July | 98° | 69° | 2.2" | 0 | 7 | 0 | 80° – 86° |
| August | 96° | 68° | 2.3" | 0 | 9 | 0 | 79° – 86° |
| September | 91° | 61° | 1.2" | 0 | 4 | 0 | 72° – 79° |
| October | 81° | 50° | 1.1" | 0 | 4 | 0 | 62° – 71° |
| November | 68° | 40° | 1.0" | 0 | 3 | 0 | 47° – 61° |
| December | 58° | 33° | 1.6" | 0 | 5 | 0 | 42° – 50° |
| Year | 79° | 49° | 15.4" | 0.0" | 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 Pinal
Pinal gets 15 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 51 days a year.
About 253 frost-free days a year
In half of years the last 32° night comes by March 11 and the first one by November 21. That leaves about 253 frost-free days for gardens, longer than 91% of U.S. towns.
Heating and cooling a home in Pinal
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Pinal, 55% of that work is heating and 45% 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.
Pinal and its neighbors
Pinal borders 1 town with climate data. January nights across them vary by 0.6°. Globe has both the coldest January nights (33°) and the hottest July afternoons (98°). Pinal’s January low is 34° and its July high 98°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Pinal 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 Pinal averaged 1.8° warmer than the 1900s. The biggest change is in March (+2.8°). The shift is larger than in 89% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Pinal’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 61°. July is the most reliable, staying within 6°.
Common questions about Pinal’s climate
What is the coldest month in Pinal?
December, with a typical high of 58° and a low of 33°.
What is the hottest month in Pinal?
July, with a typical high of 98° and a low of 69°. About 114 days a year reach 90°.
How much snow does Pinal get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Pinal?
In half of years the first 32° night comes by November 21, and the last spring frost by March 11.
What is the rainiest month in Pinal?
August, with 2.3 inches of rain and melted snow. The year totals 15 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Pinal itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Miami, AZ (7 mi, snow) and Globe #3, AZ (2 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.