Prescott, AZ climate
Prescott has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 26°, and about 10 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 | 53° | 26° | 1.5" | 1.9" | 6 | 1 | 35° – 45° |
| February | 56° | 28° | 1.6" | 3.1" | 6 | 1 | 36° – 49° |
| March | 62° | 33° | 1.4" | 2.5" | 5 | 0 | 40° – 54° |
| April | 68° | 37° | 0.6" | 0.4" | 3 | 0 | 47° – 58° |
| May | 77° | 45° | 0.5" | 0 | 3 | 0 | 55° – 66° |
| June | 88° | 53° | 0.3" | 0 | 2 | 0 | 64° – 75° |
| July | 90° | 60° | 2.2" | 0 | 10 | 0 | 72° – 78° |
| August | 88° | 59° | 2.7" | 0 | 10 | 0 | 71° – 78° |
| September | 83° | 52° | 1.5" | 0 | 6 | 0 | 64° – 70° |
| October | 73° | 41° | 1.0" | 0 | 4 | 0 | 53° – 63° |
| November | 62° | 31° | 0.9" | 0.9" | 4 | 0 | 40° – 53° |
| December | 52° | 25° | 1.3" | 1.4" | 5 | 1 | 35° – 43° |
| Year | 71° | 41° | 15.4" | 10.2" | 63 | 4 |
“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 15 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 63 days a year.
About 188 frost-free days a year
In half of years the last 32° night comes by April 20 and the first one by October 27. That leaves about 188 frost-free days for gardens, longer than 62% 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, 79% of that work is heating and 21% 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.
Prescott and its neighbors
Prescott borders 2 towns with climate data. January nights across them vary by 0.8°. Williamson has the coldest January nights (26°) and Prescott Valley the hottest July afternoons (91°). Prescott’s January low is 26° and its July high 90°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
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 2.1° warmer than the 1900s. The biggest change is in March (+3.2°). The shift is larger than in 96% 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. November swings the most: between 1991 and 2020 its average temperature ranged from 40° to 53°. July is the most reliable, staying within 6°.
Common questions about Prescott’s climate
What is the coldest month in Prescott?
December, with a typical high of 52° and a low of 25°.
What is the hottest month in Prescott?
July, with a typical high of 90° and a low of 60°. About 50 days a year reach 90°.
How much snow does Prescott get?
About 10 inches in a normal winter, most of it in February.
When is the first frost in Prescott?
In half of years the first 32° night comes by October 27, and the last spring frost by April 20.
What is the rainiest month in Prescott?
August, with 2.7 inches of rain and melted snow. The year totals 15 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 Prescott, AZ (2 mi, snow) and Prescott Love Fld, AZ (4 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.