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Climate in Prescott · NOAA 1991–2020 normals

Prescott’s winters are milder and less snowy than most of the U.S.

A typical July afternoon reaches 90°, a January night drops to 26°, and about 10 inches of snow falls in a normal winter.

Less snow than 65% of U.S. towns#110Least snow  of 129 in AZ
Milder January nights than 64% of U.S. towns#117Mildest winters  of 138 in AZ
All AZ rankings →

A year in Prescott at a glance

Each month’s typical high and low, and what it brings.

Jan53°26°
Feb56°28° 3" snow
Mar62°33°
Apr68°37° Last frost ~Apr 30
May77°45° 1 day 90°+
Jun88°53° 12 days 90°+
Jul90°60° 17 days 90°+
Aug88°59° 11 days 90°+Wettest
Sep83°52° 3 days 90°+
Oct73°41° First frost ~Oct 20
Nov now62°31°
Dec52°25°

What stands out about Prescott’s climate

Compared with towns across the U.S., with Prescott’s place in Arizona beside it.

A normal year

What a year in Prescott feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
54° / 26°
3 days with 1"+ of snow
Spring
69° / 38°
Last frost around Apr 30
Summer
89° / 57°
44 days reach 90°
Fall
73° / 41°
First frost around Oct 20
Best months to be outsideMaySepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 172 frost-free days a year

In half of years the last 32° night comes by April 30 and the first by October 20. Frost and day counts come from NOAA’s station at Prescott, AZ, 1.7 miles from the town’s center, 160 ft lower.

128
nights at or below 32° in a normal year
15th most of 137 in Arizona
More freezing nights than 66% of U.S. towns
<1
nights at or below 0°
117th fewest of 137 in Arizona
Fewer nights at or below 0° than 69% of U.S. towns
44
days that reach 90°
125th most of 137 in Arizona
More 90° days than 72% of U.S. towns
1
days that reach 100°
124th most of 137 in Arizona
More 100° days than 74% of U.S. towns
7bUSDA zone
Plant hardiness zone 7b

The 2023 USDA map puts Prescott’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 8°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

28
JFMAMJJASOND

90° days by month

Average days at 90° or more

17
JFMAMJJASOND
Rain & snow

About 10 inches of snow a winter

Snow, measured at Prescott, AZ, falls mostly in February. Precipitation (rain plus melted snow) adds up to 15 inches a year; August is the wettest month and June the driest. Rain or snow falls on about 63 days a year.

15"
Rain + melted snow a year
122nd driest of 138 in Arizona
Drier than 93% of U.S. towns
10"
Snow in a normal winter
110th least snowy of 129 in Arizona
Less snow than 65% of U.S. towns
4 days
With 1"+ of snow on the ground
110th fewest of 125 in Arizona
Fewer days with snow on the ground than 65% of U.S. towns

Rain + melted snow by month

Inches of water

2.7"
JFMAMJJASOND

Snowfall by month

Inches of snow

3"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Prescott

83% of the work is heating. Months averaging under 55° run from November through April.

4,388 heating degree daysLess heating than 68% of U.S. towns
916 cooling degree daysMore cooling than 50% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Prescott, AZ.

Living here

Living with Prescott’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

172 frost-free days in zone 7b. The last frost comes by Apr 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 20.

Get outside

Months with highs of 62–84° and lows of 40° or more: May, September and October. 146 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Prescott from natural hazards, river flooding is the largest share (68%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Prescott and its neighbors

Prescott Valley the hottest July afternoons (91°, 1° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.

Dewey-Humboldt: January low 28°, July high 93°Williamson: January low 26°, July high 91°Prescott Valley: January low 26°, July high 91°Prescott: January low 26°, July high 90°PrescottWilliamsonPrescott Valley
ColderMilder26° to 28°
Prescott25.5°
Williamson25.7° about the same
Prescott Valley26.3° about the same

Climates most like Prescott’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Prescott, AZ26°90°15"10"
Clovis, NM24°91°17"13"
Walla Walla, WA30°91°16"9.0"
Pendleton, OR28°90°14"16"
Carson City, NV23°90°11"14"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

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°).

+2.1°1991–2020 vs. 1901–2000

A bigger shift than in 93% of U.S. towns.

Winter+2.0°now 40°, was 38°
Spring+2.5°now 54°, was 51°
Summer+2.1°now 73°, was 71°
Fall+1.8°now 57°, was 55°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Prescott compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Prescott’s place among Arizona’s.

Summer heat90° July high
Hotter July afternoons than 79% of U.S. towns124th hottest of 138 in Arizona
Winter cold26° January low
Milder January nights than 64% of U.S. towns117th mildest of 138 in Arizona
Precipitation15" a year
Drier than 93% of U.S. towns122nd driest of 138 in Arizona
Snow10" a winter
Less snow than 65% of U.S. towns110th least snowy of 129 in Arizona
Hot days44 days at 90°+
More 90° days than 72% of U.S. towns125th most of 137 in Arizona
Freezing nights128 a year
More freezing nights than 66% of U.S. towns15th most of 137 in Arizona
Growing season172 frost-free days
A shorter frost-free season than 69% of U.S. towns16th shortest of 116 in Arizona
Month by month

Prescott weather by month

Highs, lows and precipitation from NOAA’s grid at Prescott’s center; snow, wet days and snow on the ground from Prescott, AZ. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January53°26°1.5"1.9"6135° – 45°
February56°28°1.6"3.1"6136° – 49°
March62°33°1.4"2.5"5040° – 54°
April68°37°0.6"0.4"3047° – 58°
May77°45°0.5"0.0"3055° – 66°
June88°53°0.3"0.0"2064° – 75°
July90°60°2.2"0.0"10072° – 78°
August88°59°2.7"0.0"10071° – 78°
September83°52°1.5"0.0"6064° – 70°
October73°41°1.0"0.0"4053° – 63°
November62°31°0.9"0.9"4040° – 53°
December52°25°1.3"1.4"5135° – 43°
Year71°41°15.4"10.2"634
Year to year

How much a month can swing

A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 40° to 53°. July is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Prescott’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Prescott’s center.
  • Snow: Prescott, AZ (NOAA station in town).
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Prescott, AZ, 1.7 miles from the town’s center, 160 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Prescott’s climate

What is the weather like in Prescott?

A typical July afternoon reaches 90°, a January night drops to 26°, and about 10 inches of snow falls in a normal winter. Milder January nights than 64% of U.S. towns; hotter July afternoons than 79% of U.S. towns.

How cold does it get in Prescott in winter?

December nights average 25°. About 128 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 35°.

How much snow does Prescott get?

About 10 inches in a normal winter at Prescott, AZ, most of it in February, with snow on the ground about 4 days a year.

How hot does it get in Prescott?

July, with a typical high of 90° and a low of 60°. About 44 days a year reach 90° and 1 reach 100° (Prescott, AZ).

When is the first and last frost in Prescott?

In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 20, about 172 frost-free days, at Prescott, AZ.

What growing zone is Prescott in?

Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 8°.

What is the best time of year to visit Prescott?

By one simple rule (highs of 62–84° and lows of 40° or more), May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Prescott getting warmer?

Yes: 1991–2020 averaged 2.1° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 93% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Prescott.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.