Photo: Turaliigo · CC BY-SA 4.0Willcox reaches 100° on about 26 days a year, more than 97% of U.S. towns
The depth of winter brings overnight lows near 28°. Temperatures cover 68° across the year, low to high. Its yearly precipitation falls short of 95% of U.S. towns. Radiators earn their keep from December to February, the months that average under 50°.
A year in Willcox at a glance
Each month’s typical high and low, and what it brings.
What stands out about Willcox’s climate
Compared with towns across the U.S., with Willcox’s place in Arizona beside it.
What a year in Willcox feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 204 frost-free days a year
In half of years the last 32° night comes by April 9 and the first by October 31. Frost and day counts come from NOAA’s station at Willcox, AZ, 0.2 miles from the town’s center, at about the same height.
The 2023 USDA map puts Willcox’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 14°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 2 inches of snow a winter
Snow, measured at Willcox, AZ, is heaviest from January through February, about 1 inches a month. Precipitation (rain plus melted snow) adds up to 12 inches a year; August is the wettest month and April the driest. Rain or snow falls on about 59 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Willcox
61% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Willcox, AZ.
Living with Willcox’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
204 frost-free days in zone 8a. The last frost comes by Apr 9 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 31.
Months with highs of 62–84° and lows of 40° or more: April and October. 1.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Willcox from natural hazards, river flooding is the largest share (81%); heat waves, cold waves, winter storms and ice storms together are 12%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Willcox and similar climates
TownRatings has no climate map of the towns around Willcox yet.
Climates most like Willcox’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Willcox, AZ | 28° | 95° | 12" | 1.7" |
| Andrews, TX | 30° | 95° | 15" | 1.7" |
| Truth or Consequences, NM | 29° | 94° | 10" | 0.9" |
| Guymon, OK | 22° | 94° | 18" | 2.7" |
| Mojave, CA | 33° | 97° | 8" | 1.2" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Willcox averaged 1.8° warmer than the 1900s. The biggest change is in March (+2.4°).
A bigger shift than in 82% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Willcox compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Willcox’s place among Arizona’s.
Willcox weather by month
Highs, lows and precipitation from NOAA’s grid at Willcox’s center; snow, wet days and snow on the ground from Willcox, AZ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 60° | 28° | 1.0" | 0.6" | 5 | 0 | 40° – 49° |
| February | 64° | 31° | 0.9" | 0.6" | 5 | 0 | 42° – 53° |
| March | 70° | 36° | 0.7" | 0.1" | 3 | 0 | 48° – 58° |
| April | 77° | 42° | 0.2" | 0.0" | 2 | 0 | 54° – 64° |
| May | 86° | 49° | 0.3" | 0.0" | 2 | 0 | 63° – 71° |
| June | 96° | 59° | 0.4" | 0.0" | 3 | 0 | 72° – 80° |
| July | 95° | 65° | 2.6" | 0.0" | 10 | 0 | 76° – 82° |
| August | 93° | 64° | 2.7" | 0.0" | 11 | 0 | 75° – 83° |
| September | 89° | 57° | 1.3" | 0.0" | 6 | 0 | 69° – 76° |
| October | 81° | 45° | 0.7" | 0.0" | 4 | 0 | 60° – 67° |
| November | 69° | 35° | 0.6" | 0.2" | 3 | 0 | 45° – 59° |
| December | 60° | 28° | 1.0" | 0.2" | 5 | 0 | 40° – 48° |
| Year | 78° | 45° | 12.4" | 1.7" | 59 | 0 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 45° to 59°. July is the most reliable, staying within 6°.
Where Willcox’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 Willcox’s center.
- Snow: Willcox, AZ (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Willcox, AZ, 0.2 miles from the town’s center, at about the same height; 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 Willcox’s climate
What is the weather like in Willcox?
A typical July afternoon reaches 95°, a January night drops to 28°, and about 2 inches of snow falls in a normal winter. Milder January nights than 70% of U.S. towns; hotter July afternoons than 95% of U.S. towns.
How cold does it get in Willcox in winter?
December nights average 28°. About 93 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 40°.
How much snow does Willcox get?
About 1.7 inches in a normal winter at Willcox, AZ, heaviest from January through February, about 1 inches a month, with snow on the ground about 0 days a year.
How hot does it get in Willcox?
July, with a typical high of 95° and a low of 65°. About 119 days a year reach 90° and 26 reach 100° (Willcox, AZ).
When is the first and last frost in Willcox?
In half of years the last spring frost (32°) comes by April 9 and the first fall frost by October 31, about 204 frost-free days, at Willcox, AZ.
What growing zone is Willcox in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 14°.
What is the best time of year to visit Willcox?
By one simple rule (highs of 62–84° and lows of 40° or more), April and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Willcox getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Willcox.
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.