Hardly any U.S. towns collect less precipitation than Low Mountain: 9 inches a year
Expect July afternoons of about 89°. Rain follows the seasons: August brings about 9.6 times as much as June. In January, nights here are colder than in 80% of U.S. towns. Central heating does most of its work from November to April, in months below 50° on average.
A year in Low Mountain at a glance
Each month’s typical high and low, and what it brings.
What stands out about Low Mountain’s climate
Compared with towns across the U.S., with Low Mountain’s place in Arizona beside it.
What a year in Low Mountain feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 147 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by October 10. Frost and day counts come from NOAA’s station at Keams Canyon, AZ, 11 miles from the town’s center, 130 ft lower.
The 2023 USDA map puts Low Mountain’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −2°. 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 9 inches of rain a year
August is the wettest month and June the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Low Mountain
91% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Keams Canyon, AZ.
Living with Low Mountain’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
147 frost-free days in zone 6b. The last frost comes by May 16 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 10.
Months with highs of 62–84° and lows of 40° or more: September. 38 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Low Mountain from natural hazards, river flooding is the largest share (69%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Low Mountain and similar climates
TownRatings has no climate map of the towns around Low Mountain 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 Low Mountain averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.4°).
A smaller shift than in 56% 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 Low Mountain compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Low Mountain’s place among Arizona’s.
Low Mountain weather by month
Highs, lows and precipitation from NOAA’s grid at Low Mountain’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 43° | 16° | 0.8" | 22° – 36° |
| February | 48° | 21° | 0.7" | 29° – 40° |
| March | 57° | 26° | 0.8" | 37° – 46° |
| April | 64° | 31° | 0.4" | 43° – 53° |
| May | 74° | 39° | 0.4" | 51° – 61° |
| June | 86° | 48° | 0.1" | 63° – 70° |
| July | 89° | 56° | 1.1" | 69° – 76° |
| August | 86° | 55° | 1.3" | 67° – 75° |
| September | 80° | 47° | 0.9" | 58° – 66° |
| October | 67° | 35° | 0.8" | 46° – 56° |
| November | 54° | 24° | 0.5" | 32° – 46° |
| December | 43° | 16° | 0.7" | 23° – 36° |
| Year | 66° | 34° | 8.6" |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 32° to 46°. June is the most reliable, staying within 7°.
Where Low Mountain’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 Low Mountain’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Keams Canyon, AZ, 11 miles from the town’s center, 130 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 Low Mountain’s climate
What is the weather like in Low Mountain?
A typical July afternoon reaches 89°, a January night drops to 16°. Colder January nights than 80% of U.S. towns; hotter July afternoons than 73% of U.S. towns.
How cold does it get in Low Mountain in winter?
December nights average 16°. About 172 nights a year reach 32° or below and 3 reach 0° or below. In the coldest December of the last 30 years the month averaged 23°.
How hot does it get in Low Mountain?
July, with a typical high of 89° and a low of 56°. About 31 days a year reach 90° (Keams Canyon, AZ).
When is the first and last frost in Low Mountain?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by October 10, about 147 frost-free days, at Keams Canyon, AZ.
What growing zone is Low Mountain in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −2°.
What is the best time of year to visit Low Mountain?
By one simple rule (highs of 62–84° and lows of 40° or more), September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Low Mountain getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 56% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Low Mountain.
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.