Swift Trail Junction, AZ climate
Swift Trail Junction has mild winters and hot summers, with very little rain. A typical July afternoon reaches 98°, a January night drops to 32°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Swift Trail Junction feels like
Winter
Spring
Summer
Fall
Swift Trail 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 | 61° | 32° | 0.8" | 0.2" | 5 | 0 | 42° – 52° |
| February | 66° | 35° | 0.7" | 0 | 4 | 0 | 45° – 56° |
| March | 73° | 40° | 0.5" | 0 | 3 | 0 | 49° – 61° |
| April | 81° | 46° | 0.3" | 0 | 2 | 0 | 57° – 68° |
| May | 89° | 54° | 0.2" | 0 | 2 | 0 | 66° – 76° |
| June | 99° | 63° | 0.3" | 0 | 2 | 0 | 76° – 85° |
| July | 98° | 70° | 1.8" | 0 | 8 | 0 | 81° – 87° |
| August | 96° | 68° | 2.1" | 0 | 8 | 0 | 79° – 88° |
| September | 92° | 62° | 1.4" | 0 | 4 | 0 | 73° – 80° |
| October | 83° | 49° | 0.7" | 0 | 4 | 0 | 63° – 71° |
| November | 70° | 38° | 0.5" | 0 | 3 | 0 | 47° – 61° |
| December | 60° | 31° | 0.9" | 0 | 5 | 0 | 42° – 49° |
| Year | 81° | 49° | 10.0" | 0.2" | 49 | 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 Swift Trail Junction
Swift Trail Junction gets 10 inches of rain and melted snow a year. August is the wettest month and May the driest. Rain or snow falls on about 49 days a year.
About 228 frost-free days a year
In half of years the last 32° night comes by March 25 and the first one by November 9. That leaves about 228 frost-free days for gardens, longer than 85% of U.S. towns.
Heating and cooling a home in Swift Trail Junction
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Swift Trail Junction, 49% of that work is heating and 51% 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 Swift Trail 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 Swift Trail Junction averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.2°). The shift is larger than in 60% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Swift Trail 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 47° to 61°. July is the most reliable, staying within 6°.
Common questions about Swift Trail Junction’s climate
What is the coldest month in Swift Trail Junction?
December, with a typical high of 60° and a low of 31°.
What is the hottest month in Swift Trail Junction?
June, with a typical high of 99° and a low of 63°. About 142 days a year reach 90°.
How much snow does Swift Trail Junction get?
Almost none. A normal year brings 0.2 inches.
When is the first frost in Swift Trail Junction?
In half of years the first 32° night comes by November 9, and the last spring frost by March 25.
What is the rainiest month in Swift Trail Junction?
August, with 2.1 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Swift Trail Junction itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Safford Ag Ctr, AZ (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.