Tonalea, AZ climate
Tonalea has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 20°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Tonalea feels like
Winter
Spring
Summer
Fall
Tonalea 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° | 20° | 0.8" | 27° – 37° |
| February | 50° | 24° | 0.7" | 31° – 43° |
| March | 59° | 31° | 0.7" | 39° – 50° |
| April | 67° | 36° | 0.3" | 46° – 56° |
| May | 77° | 45° | 0.4" | 54° – 65° |
| June | 88° | 53° | 0.1" | 65° – 76° |
| July | 93° | 61° | 1.0" | 72° – 80° |
| August | 90° | 59° | 1.2" | 71° – 80° |
| September | 82° | 51° | 1.0" | 62° – 70° |
| October | 69° | 39° | 0.7" | 50° – 59° |
| November | 55° | 28° | 0.5" | 34° – 48° |
| December | 43° | 19° | 0.5" | 23° – 36° |
| Year | 68° | 39° | 7.9" |
“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 Tonalea
Tonalea gets 8 inches of rain and melted snow a year. August is the wettest month and June the driest.
About 193 frost-free days a year
In half of years the last 32° night comes by April 16 and the first one by October 28. That leaves about 193 frost-free days for gardens, longer than 67% of U.S. towns.
Heating and cooling a home in Tonalea
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Tonalea, 76% of that work is heating and 24% 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 Tonalea 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 Tonalea averaged 1.4° warmer than the 1900s. The biggest change is in March (+2.6°). The shift is larger than in 64% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Tonalea’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 48°. July is the most reliable, staying within 8°.
Common questions about Tonalea’s climate
What is the coldest month in Tonalea?
December, with a typical high of 43° and a low of 19°.
What is the hottest month in Tonalea?
July, with a typical high of 93° and a low of 61°. About 76 days a year reach 90°.
When is the first frost in Tonalea?
In half of years the first 32° night comes by October 28, and the last spring frost by April 16.
What is the rainiest month in Tonalea?
August, with 1.2 inches of rain and melted snow. The year totals 8 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Tonalea itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Tuba City, AZ (20 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.