Prescott, WA climate
Prescott has mild winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 29°, and about 7 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Prescott feels like
Winter
Spring
Summer
Fall
Prescott 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 | 41° | 29° | 1.6" | 1.0" | 13 | 3 | 22° – 43° |
| February | 47° | 30° | 1.2" | 2.2" | 11 | 2 | 27° – 45° |
| March | 56° | 35° | 1.4" | 0.2" | 12 | 0 | 37° – 50° |
| April | 63° | 39° | 1.4" | 0 | 11 | 0 | 46° – 56° |
| May | 72° | 46° | 1.3" | 0 | 10 | 0 | 54° – 64° |
| June | 79° | 52° | 0.9" | 0 | 7 | 0 | 61° – 74° |
| July | 90° | 59° | 0.3" | 0 | 3 | 0 | 67° – 78° |
| August | 89° | 58° | 0.3" | 0 | 3 | 0 | 68° – 76° |
| September | 79° | 50° | 0.5" | 0 | 4 | 0 | 61° – 69° |
| October | 64° | 40° | 1.1" | 0.1" | 9 | 0 | 47° – 58° |
| November | 49° | 33° | 1.7" | 0.3" | 13 | 1 | 35° – 47° |
| December | 40° | 28° | 1.8" | 2.7" | 14 | 3 | 28° – 39° |
| Year | 64° | 42° | 13.4" | 6.5" | 109 | 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 Prescott
Prescott gets 13 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 109 days a year. Snow covers the ground about 9 days of the year.
About 219 frost-free days a year
In half of years the last 32° night comes by March 27 and the first one by October 31. That leaves about 219 frost-free days for gardens, longer than 82% of U.S. towns.
Heating and cooling a home in Prescott
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Prescott, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.
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 Prescott 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 Prescott averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.0°). The shift is larger than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Prescott’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 22° to 43°. August is the most reliable, staying within 8°.
Common questions about Prescott’s climate
What is the coldest month in Prescott?
December, with a typical high of 40° and a low of 28°.
What is the hottest month in Prescott?
July, with a typical high of 90° and a low of 59°. About 42 days a year reach 90°.
How much snow does Prescott get?
About 7 inches in a normal winter, most of it in December.
When is the first frost in Prescott?
In half of years the first 32° night comes by October 31, and the last spring frost by March 27.
What is the rainiest month in Prescott?
December, with 1.8 inches of rain and melted snow. The year totals 13 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Prescott itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Walla Walla Rgnl Airport, WA (14 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.