Thayne gets about 88 inches of snow a winter, more than 96% of U.S. towns
Peak summer warmth arrives in July, with afternoons near 83°. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 75° apart. By precipitation alone, it ranks drier than 92% of U.S. towns. The heating season runs October to May: each of those months averages under 50°.
A year in Thayne at a glance
Each month’s typical high and low, and what it brings.
What stands out about Thayne’s climate
Compared with towns across the U.S., with Thayne’s place in Wyoming beside it.
What a year in Thayne feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
A freeze is possible in every month
About 238 nights a year fall to 32° or below, and 35 to 0° or below. Frost and day counts come from NOAA’s station at Bedford 3 Se, WY, 6 miles from the town’s center, 370 ft higher.
The 2023 USDA map puts Thayne’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −20°. 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 88 inches of snow a winter
Snow, measured at Afton, WY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 17 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 111 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Thayne
Nearly all of the work is heating: a normal year has almost no cooling days. Months averaging under 55° run from September through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Bedford 3 Se, WY.
Living with Thayne’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 5a, and frost can come in any month. The longest frost-free stretch in half of years is about 67 days.
Months with highs of 62–84° and lows of 40° or more: July and August. 0.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Thayne from natural hazards, avalanches are the largest share (75%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Thayne and similar climates
TownRatings has no climate map of the towns around Thayne yet.
Climates most like Thayne’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 |
|---|---|---|---|---|
| Thayne, WY | 8° | 83° | 17" | 88" |
| Hailey, ID | 10° | 84° | 14" | 102" |
| Bozeman, MT | 13° | 83° | 17" | 91" |
| Flagstaff, AZ | 16° | 84° | 18" | 90" |
| Craig, CO | 6° | 86° | 14" | 113" |
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 Thayne averaged 1.3° warmer than the 1900s. The biggest change is in March (+3.0°).
A smaller shift than in 55% 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 Thayne compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Thayne’s place among Wyoming’s.
Thayne weather by month
Highs, lows and precipitation from NOAA’s grid at Thayne’s center; snow, wet days and snow on the ground from Afton, WY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 29° | 8° | 1.5" | 21.8" | 12 | 31 | 12° – 25° |
| February | 34° | 10° | 1.2" | 15.0" | 11 | 27 | 17° – 29° |
| March | 44° | 18° | 1.2" | 12.2" | 9 | 23 | 25° – 38° |
| April | 53° | 26° | 1.6" | 5.0" | 10 | 6 | 32° – 45° |
| May | 64° | 34° | 2.1" | 0.8" | 11 | 1 | 43° – 54° |
| June | 74° | 39° | 1.5" | 0.2" | 8 | 0 | 52° – 62° |
| July | 83° | 45° | 0.9" | 0.0" | 7 | 0 | 54° – 69° |
| August | 82° | 43° | 1.1" | 0.0" | 6 | 0 | 58° – 66° |
| September | 73° | 36° | 1.3" | 0.2" | 7 | 0 | 51° – 58° |
| October | 58° | 27° | 1.5" | 3.7" | 9 | 2 | 34° – 49° |
| November | 42° | 18° | 1.4" | 11.4" | 10 | 11 | 21° – 37° |
| December | 30° | 8° | 1.5" | 17.5" | 13 | 29 | 14° – 26° |
| Year | 55° | 26° | 16.7" | 87.8" | 111 | 130 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 21° to 37°. September is the most reliable, staying within 7°.
Where Thayne’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 Thayne’s center.
- Snow: Afton, WY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bedford 3 Se, WY, 6 miles from the town’s center, 370 ft higher; 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 Thayne’s climate
What is the weather like in Thayne?
A typical July afternoon reaches 83°, a January night drops to 8°, and about 88 inches of snow falls in a normal winter. Colder January nights than 96% of U.S. towns; cooler July afternoons than 72% of U.S. towns.
How cold does it get in Thayne in winter?
January nights average 8°. About 238 nights a year reach 32° or below and 35 reach 0° or below. In the coldest January of the last 30 years the month averaged 12°.
How much snow does Thayne get?
About 88 inches in a normal winter at Afton, WY, most of it in January, with snow on the ground about 130 days a year.
How hot does it get in Thayne?
July, with a typical high of 83° and a low of 45°. About 2 days a year reach 90° (Bedford 3 Se, WY).
When is the first and last frost in Thayne?
There is no reliable frost-free season: at Bedford 3 Se, WY, every month has nights at 32° or below, about 238 a year. In half of years the longest stretch without a freeze is about 67 days.
What growing zone is Thayne in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −20°.
What is the best time of year to visit Thayne?
By one simple rule (highs of 62–84° and lows of 40° or more), July and August. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Thayne getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 55% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Thayne.
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.