Photo: Steven Baltakatei Sandoval · CC BY-SA 4.0Aneth reaches 100° on about 16 days a year, more than 94% of U.S. towns
The coldest hours of a January night bottom out at 21° on average. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 76° apart. It is a dry place: less rain and snow fall here than on almost every U.S. town. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in Aneth at a glance
Each month’s typical high and low, and what it brings.
What stands out about Aneth’s climate
Compared with towns across the U.S., with Aneth’s place in Utah beside it.
What a year in Aneth feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 172 frost-free days a year
In half of years the last 32° night comes by April 24 and the first by October 13. Frost and day counts come from NOAA’s station at Bluff, UT, 22 miles from the town’s center, 280 ft lower.
The 2023 USDA map puts Aneth’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. 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 12 inches of snow a winter
Snow, measured at Hovenweep Nm, UT, falls mostly in February and December. Precipitation (rain plus melted snow) adds up to 8 inches a year; September is the wettest month and June the driest. Rain or snow falls on about 58 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Aneth
79% of the work is heating. Months averaging under 55° run from November 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 Bluff, UT.
Living with Aneth’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
172 frost-free days in zone 7a. The last frost comes by Apr 24 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 13.
Months with highs of 62–84° and lows of 40° or more: May and October. 10 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Aneth from natural hazards, avalanches are the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 15%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Aneth and similar climates
TownRatings has no climate map of the towns around Aneth yet.
Climates most like Aneth’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 |
|---|---|---|---|---|
| Aneth, UT | 21° | 97° | 8" | 12" |
| Roswell, NM | 25° | 96° | 12" | 9.6" |
| Fallon, NV | 22° | 96° | 4" | 4.5" |
| Payette, ID | 23° | 94° | 10" | 15" |
| Ontario, OR | 23° | 93° | 10" | 15" |
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 Aneth averaged 1.6° warmer than the 1900s. The biggest change is in January (+2.6°).
A bigger shift than in 65% 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 Aneth compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Aneth’s place among Utah’s.
Aneth weather by month
Highs, lows and precipitation from NOAA’s grid at Aneth’s center; snow, wet days and snow on the ground from Hovenweep Nm, UT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 44° | 21° | 0.7" | 3.1" | 5 | 9 | 24° – 39° |
| February | 52° | 26° | 0.7" | 3.5" | 5 | 4 | 34° – 46° |
| March | 62° | 32° | 0.5" | 0.8" | 5 | 0 | 43° – 52° |
| April | 70° | 38° | 0.5" | 0.3" | 4 | 0 | 50° – 59° |
| May | 81° | 48° | 0.6" | 0.1" | 5 | 0 | 59° – 68° |
| June | 92° | 57° | 0.2" | 0.0" | 2 | 0 | 70° – 79° |
| July | 97° | 64° | 0.7" | 0.0" | 6 | 0 | 76° – 84° |
| August | 94° | 62° | 0.9" | 0.0" | 6 | 0 | 75° – 82° |
| September | 85° | 53° | 0.9" | 0.0" | 6 | 0 | 64° – 72° |
| October | 72° | 40° | 0.8" | 0.4" | 5 | 0 | 51° – 60° |
| November | 57° | 28° | 0.5" | 0.7" | 3 | 0 | 37° – 49° |
| December | 45° | 20° | 0.7" | 3.3" | 5 | 6 | 26° – 38° |
| Year | 71° | 41° | 7.6" | 12.2" | 58 | 19 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 24° to 39°. August is the most reliable, staying within 7°.
Where Aneth’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 Aneth’s center.
- Snow: Hovenweep Nm, UT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bluff, UT, 22 miles from the town’s center, 280 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 Aneth’s climate
What is the weather like in Aneth?
A typical July afternoon reaches 97°, a January night drops to 21°, and about 12 inches of snow falls in a normal winter. Colder January nights than 55% of U.S. towns; hotter July afternoons than 97% of U.S. towns.
How cold does it get in Aneth in winter?
December nights average 20°. About 140 nights a year reach 32° or below and 1 reach 0° or below. In the coldest December of the last 30 years the month averaged 26°.
How much snow does Aneth get?
About 12 inches in a normal winter at Hovenweep Nm, UT, most of it in February and December, with snow on the ground about 19 days a year.
How hot does it get in Aneth?
July, with a typical high of 97° and a low of 64°. About 90 days a year reach 90° and 16 reach 100° (Bluff, UT).
When is the first and last frost in Aneth?
In half of years the last spring frost (32°) comes by April 24 and the first fall frost by October 13, about 172 frost-free days, at Bluff, UT.
What growing zone is Aneth in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit Aneth?
By one simple rule (highs of 62–84° and lows of 40° or more), May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Aneth getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Aneth.
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.