Apache Junction, AZ climate
Apache Junction has warm winters and scorching summers, with very little rain. A typical July afternoon reaches 105°, a January night drops to 42°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Apache Junction feels like
Winter
Spring
Summer
Fall
Apache Junction 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 | 66° | 42° | 1.3" | 0 | 5 | 0 | 50° – 60° |
| February | 70° | 43° | 1.4" | 0 | 5 | 0 | 51° – 62° |
| March | 77° | 48° | 1.2" | 0 | 4 | 0 | 55° – 69° |
| April | 84° | 53° | 0.4" | 0 | 2 | 0 | 63° – 73° |
| May | 93° | 61° | 0.3" | 0 | 2 | 0 | 72° – 82° |
| June | 103° | 70° | 0.0" | 0 | 1 | 0 | 81° – 90° |
| July | 105° | 78° | 0.9" | 0 | 4 | 0 | 88° – 94° |
| August | 103° | 77° | 1.2" | 0 | 6 | 0 | 87° – 94° |
| September | 99° | 71° | 0.9" | 0 | 4 | 0 | 80° – 87° |
| October | 88° | 59° | 0.6" | 0 | 3 | 0 | 70° – 78° |
| November | 75° | 48° | 0.7" | 0 | 3 | 0 | 53° – 67° |
| December | 65° | 41° | 1.2" | 0 | 4 | 0 | 50° – 57° |
| Year | 86° | 57° | 10.2" | 0.0" | 40 | 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 Apache Junction
Apache Junction gets 10 inches of rain and melted snow a year. February is the wettest month and June the driest. Rain or snow falls on about 40 days a year.
About 304 frost-free days a year
In half of years the last 32° night comes by February 11 and the first one by December 10. That leaves about 304 frost-free days for gardens, longer than 95% of U.S. towns.
Heating and cooling a home in Apache Junction
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Apache Junction, 24% of that work is heating and 76% is cooling, so air conditioning is the bigger bill.
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.
Apache Junction and its neighbors
Apache Junction borders 3 towns with climate data. January nights across them vary by 1.1°. Mesa has both the coldest January nights (40°) and the hottest July afternoons (106°). Apache Junction’s January low is 42° and its July high 105°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Apache Junction 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 Apache Junction averaged 2.1° warmer than the 1900s. The biggest change is in March (+2.9°). The shift is larger than in 96% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Apache Junction’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 53° to 67°. July is the most reliable, staying within 5°.
Common questions about Apache Junction’s climate
What is the coldest month in Apache Junction?
December, with a typical high of 65° and a low of 41°.
What is the hottest month in Apache Junction?
July, with a typical high of 105° and a low of 78°. About 168 days a year reach 90°.
How much snow does Apache Junction get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Apache Junction?
In half of years the first 32° night comes by December 10, and the last spring frost by February 11.
What is the rainiest month in Apache Junction?
February, with 1.4 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Apache Junction itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Apache Junction 5 Ne, AZ (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.