Precipitation in Yarnell trails that of 90% of U.S. towns: 19 inches a year
The coldest hours of a January night bottom out at 34° on average. Winter and summer sit 57° apart. In July, afternoons here are warmer than in 84% of U.S. towns. Homes need heating from December to February, the months averaging under 50°.
A year in Yarnell at a glance
Each month’s typical high and low, and what it brings.
What stands out about Yarnell’s climate
Compared with towns across the U.S., with Yarnell’s place in Arizona beside it.
What a year in Yarnell feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 19 inches of rain a year
August is the wettest month and June the driest.
Rain + melted snow by month
Inches of water
Living with Yarnell’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 8b.
Months with highs of 62–84° and lows of 40° or more: April, May, October and November. 11 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Yarnell from natural hazards, river flooding is the largest share (67%); heat waves, cold waves, winter storms and ice storms together are 2%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Yarnell and similar climates
TownRatings has no climate map of the towns around Yarnell yet.
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 Yarnell averaged 1.8° warmer than the 1900s. The biggest change is in March (+2.9°).
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 Yarnell compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Yarnell’s place among Arizona’s.
Yarnell weather by month
Highs, lows and precipitation from NOAA’s grid at Yarnell’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 56° | 34° | 2.3" | 40° – 52° |
| February | 57° | 35° | 2.8" | 39° – 53° |
| March | 63° | 38° | 1.9" | 43° – 58° |
| April | 69° | 42° | 0.7" | 49° – 61° |
| May | 78° | 50° | 0.4" | 58° – 70° |
| June | 88° | 59° | 0.2" | 68° – 78° |
| July | 91° | 65° | 2.1" | 75° – 81° |
| August | 89° | 64° | 3.0" | 72° – 81° |
| September | 85° | 59° | 1.8" | 68° – 75° |
| October | 75° | 49° | 1.2" | 58° – 68° |
| November | 64° | 40° | 1.2" | 44° – 59° |
| December | 55° | 34° | 2.0" | 41° – 50° |
| Year | 72° | 47° | 19.3" |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 43° to 58°. July is the most reliable, staying within 6°.
Where Yarnell’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 Yarnell’s center.
- 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 Yarnell’s climate
What is the weather like in Yarnell?
A typical July afternoon reaches 91°, a January night drops to 34°. Milder January nights than 78% of U.S. towns; hotter July afternoons than 84% of U.S. towns.
How cold does it get in Yarnell in winter?
January nights average 34°. In the coldest January of the last 30 years the month averaged 40°.
How hot does it get in Yarnell?
July, with a typical high of 91°. 90° days are rare.
What growing zone is Yarnell in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 17°.
What is the best time of year to visit Yarnell?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Yarnell 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 Yarnell.
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.