Flowing Wells reaches 100° on about 80 days a year, more than all but 90 U.S. towns
A typical July afternoon reaches 102°, a January night drops to 38°, and snow is almost unheard of.
A year in Flowing Wells at a glance
Each month’s typical high and low, and what it brings.
What stands out about Flowing Wells’ climate
Compared with towns across the U.S., with Flowing Wells’ place in Arizona beside it.
What a year in Flowing Wells feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 293 frost-free days a year
In half of years the last 32° night comes by February 11 and the first by December 2. Frost and day counts come from NOAA’s station at Tucson U Of A #1, AZ, 2.5 miles from the town’s center, at about the same height.
The 2023 USDA map puts Flowing Wells’ center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 25°. 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 11 inches of rain a year
August is the wettest month and May the driest. Rain falls on about 48 days a year. Snow is rare: about 0.0" in a normal year at Tucson U Of A #1, AZ, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Flowing Wells
29% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Tucson U Of A #1, AZ.
Living with Flowing Wells’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
293 frost-free days in zone 9a. The last frost comes by Feb 11 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Dec 2.
Months with highs of 62–84° and lows of 40° or more: February, March and November. 2.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Flowing Wells from natural hazards, river flooding is the largest share (83%); heat waves, cold waves, winter storms and ice storms together are 15%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Flowing Wells and its neighbors
Every town next door is within a degree of Flowing Wells in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Flowing Wells’, 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 |
|---|---|---|---|---|
| Flowing Wells, AZ | 38° | 102° | 11" | 0.0" |
| Hillcrest, CA | 40° | 100° | 10" | 0.1" |
| Summerlin South, NV | 35° | 102° | 5" | 0.2" |
| Washington, UT | 32° | 102° | 11" | 1.2" |
| Eagle Pass, TX | 41° | 98° | 19" | 0.0" |
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.
Warmer than it used to be
The last 30 years in Flowing Wells averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.4°).
A smaller shift than in 53% 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 Flowing Wells compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Flowing Wells’ place among Arizona’s.
Flowing Wells weather by month
Highs, lows and precipitation from NOAA’s grid at Flowing Wells’ center; snow, wet days and snow on the ground from Tucson U Of A #1, AZ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 67° | 38° | 1.1" | 0.0" | 4 | 0 | 49° – 58° |
| February | 70° | 41° | 1.0" | 0.0" | 5 | 0 | 50° – 61° |
| March | 77° | 46° | 0.7" | 0.0" | 4 | 0 | 55° – 67° |
| April | 84° | 51° | 0.3" | 0.0" | 2 | 0 | 61° – 73° |
| May | 93° | 59° | 0.2" | 0.0" | 2 | 0 | 71° – 80° |
| June | 102° | 69° | 0.2" | 0.0" | 2 | 0 | 81° – 89° |
| July | 102° | 75° | 1.8" | 0.0" | 7 | 0 | 85° – 91° |
| August | 100° | 74° | 2.1" | 0.0" | 9 | 0 | 84° – 92° |
| September | 97° | 68° | 1.2" | 0.0" | 4 | 0 | 78° – 85° |
| October | 87° | 56° | 0.6" | 0.0" | 3 | 0 | 69° – 76° |
| November | 76° | 45° | 0.7" | 0.0" | 3 | 0 | 52° – 68° |
| December | 66° | 38° | 1.1" | 0.0" | 5 | 0 | 48° – 56° |
| Year | 85° | 55° | 10.9" | 0.0" | 48 | 0 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 52° to 68°. July is the most reliable, staying within 6°.
Where Flowing Wells’ 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 Flowing Wells’ center.
- Snow: Tucson U Of A #1, AZ.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Tucson U Of A #1, AZ, 2.5 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 Flowing Wells’ climate
What is the weather like in Flowing Wells?
A typical July afternoon reaches 102°, a January night drops to 38°, and snow is almost unheard of. Milder January nights than 86% of U.S. towns; hotter July afternoons than all but 103 U.S. towns.
How cold does it get in Flowing Wells in winter?
December nights average 38°. About 21 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 48°.
How much snow does Flowing Wells get?
About 0.0 inches in a normal winter at Tucson U Of A #1, AZ, so most winters see none.
How hot does it get in Flowing Wells?
July, with a typical high of 102° and a low of 75°. About 167 days a year reach 90° and 80 reach 100° (Tucson U Of A #1, AZ).
When is the first and last frost in Flowing Wells?
In half of years the last spring frost (32°) comes by February 11 and the first fall frost by December 2, about 293 frost-free days, at Tucson U Of A #1, AZ.
What growing zone is Flowing Wells in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 25°.
What is the best time of year to visit Flowing Wells?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Flowing Wells getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 53% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Flowing Wells.
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.