Photo: Staplegunther at English Wikipedia · CC BY-SA 3.0Thompson Springs is among the driest of U.S. towns: 10 inches of precipitation a year
In January the night’s low is typically 17°. Its July heat outdoes that of 94% of U.S. towns. Compared with 1901–2000, the average now sits 2.3° higher. Tender plants can go out after about April 22; in half of years the first frost comes by October 20.
A year in Thompson Springs at a glance
Each month’s typical high and low, and what it brings.
What stands out about Thompson Springs’ climate
Compared with towns across the U.S., with Thompson Springs’ place in Utah beside it.
What a year in Thompson Springs feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 179 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 20. Frost and day counts come from Moab Canyonland Airport, 15 miles away.
The 2023 USDA map puts Thompson Springs’ center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 1°. 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 10 inches of rain a year
September is the wettest month and June the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Thompson Springs
79% of the work is heating. 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 Moab Canyonland Airport.
Living with Thompson Springs’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
179 frost-free days in zone 7a. The last frost comes by Apr 22 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 20.
Months with highs of 62–84° and lows of 40° or more: May and September. 4.6 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Thompson Springs from natural hazards, river flooding is the largest share (44%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Thompson Springs and similar climates
TownRatings has no climate map of the towns around Thompson Springs 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 Thompson Springs averaged 2.3° warmer than the 1900s. The biggest change is in January (+4.0°).
A bigger shift than in 98% 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 Thompson Springs compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Thompson Springs’ place among Utah’s.
Thompson Springs weather by month
Highs, lows and precipitation from NOAA’s grid at Thompson Springs’ center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 39° | 17° | 0.8" | 17° – 37° |
| February | 47° | 23° | 0.7" | 29° – 42° |
| March | 58° | 32° | 0.8" | 40° – 51° |
| April | 66° | 37° | 0.9" | 47° – 58° |
| May | 77° | 46° | 0.9" | 56° – 66° |
| June | 89° | 56° | 0.5" | 67° – 79° |
| July | 95° | 63° | 0.7" | 75° – 83° |
| August | 92° | 61° | 0.9" | 73° – 82° |
| September | 83° | 52° | 1.3" | 62° – 71° |
| October | 68° | 39° | 1.1" | 47° – 58° |
| November | 52° | 27° | 0.6" | 33° – 46° |
| December | 39° | 18° | 0.7" | 20° – 35° |
| Year | 67° | 39° | 9.8" |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 17° to 37°. July is the most reliable, staying within 8°.
Where Thompson Springs’ 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 Thompson Springs’ center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Moab Canyonland Airport, 15 miles from the town’s center, 540 ft lower; no station nearby passes every check; this is the nearest one in the same valley, flagged above.
- 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 Thompson Springs’ climate
What is the weather like in Thompson Springs?
A typical July afternoon reaches 95°, a January night drops to 17°. Colder January nights than 75% of U.S. towns; hotter July afternoons than 94% of U.S. towns.
How cold does it get in Thompson Springs in winter?
January nights average 17°. About 138 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How hot does it get in Thompson Springs?
July, with a typical high of 95° and a low of 63°. About 84 days a year reach 90° and 17 reach 100° (Moab Canyonland Airport).
When is the first and last frost in Thompson Springs?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 20, about 179 frost-free days, at Moab Canyonland Airport.
What growing zone is Thompson Springs in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 1°.
What is the best time of year to visit Thompson Springs?
By one simple rule (highs of 62–84° and lows of 40° or more), May and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Thompson Springs getting warmer?
Yes: 1991–2020 averaged 2.3° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 98% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Thompson Springs.
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.