Diamondville has some of the coldest winter nights among U.S. towns
Peak summer warmth arrives in July, with afternoons near 81°. From frosty January to warm July, readings climb 75°. It is a dry place: less rain and snow fall here than on 97% of U.S. towns. For walks and days out, July and August bring highs of 79–81°.
A year in Diamondville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Diamondville’s climate
Compared with towns across the U.S., with Diamondville’s place in Wyoming beside it.
What a year in Diamondville 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 246 nights a year fall to 32° or below, and 44 to 0° or below. Frost and day counts come from NOAA’s station at Kemmerer 2n, WY, 2.8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Diamondville’s center in zone 4b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −23°. 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 50 inches of snow a winter
Snow, measured at Kemmerer 2n, WY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 10 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 53 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Diamondville
99% of the work is heating, so the furnace matters far more than the air conditioner. 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 Kemmerer 2n, WY.
Living with Diamondville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 4b, and frost can come in any month. The longest frost-free stretch in half of years is about 66 days.
Months with highs of 62–84° and lows of 40° or more: July and August. 3.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Diamondville from natural hazards, river flooding is the largest share (76%); heat waves, cold waves, winter storms and ice storms together are 9%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Diamondville and similar climates
TownRatings has no climate map of the towns around Diamondville yet.
Climates most like Diamondville’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 |
|---|---|---|---|---|
| Diamondville, WY | 6° | 81° | 10" | 50" |
| Gunnison, CO | 0° | 82° | 12" | 50" |
| Minot, ND | 2° | 82° | 17" | 52" |
| Havre, MT | 6° | 85° | 13" | 41" |
| Taos, NM | 11° | 84° | 13" | 28" |
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 Diamondville averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.8°).
A bigger shift than in 72% 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 Diamondville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Diamondville’s place among Wyoming’s.
Diamondville weather by month
Highs, lows and precipitation from NOAA’s grid at Diamondville’s center; snow, wet days and snow on the ground from Kemmerer 2n, WY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 29° | 6° | 0.7" | 11.6" | 5 | 9° – 26° |
| February | 32° | 7° | 0.6" | 9.6" | 4 | 11° – 30° |
| March | 42° | 18° | 0.7" | 6.1" | 4 | 22° – 36° |
| April | 51° | 24° | 0.9" | 3.0" | 4 | 29° – 43° |
| May | 61° | 32° | 1.5" | 1.4" | 6 | 41° – 51° |
| June | 72° | 39° | 0.9" | 0.1" | 4 | 49° – 60° |
| July | 81° | 45° | 0.6" | 0.0" | 3 | 54° – 68° |
| August | 79° | 43° | 0.9" | 0.0" | 4 | 57° – 64° |
| September | 70° | 35° | 1.0" | 0.4" | 4 | 48° – 56° |
| October | 56° | 25° | 1.0" | 1.8" | 4 | 33° – 48° |
| November | 40° | 15° | 0.7" | 6.2" | 5 | 18° – 34° |
| December | 30° | 6° | 0.7" | 9.5" | 6 | 12° – 25° |
| Year | 53° | 25° | 10.2" | 49.7" | 53 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 11° to 30°. August is the most reliable, staying within 7°.
Where Diamondville’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 Diamondville’s center.
- Snow: Kemmerer 2n, WY.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Kemmerer 2n, WY, 2.8 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 Diamondville’s climate
What is the weather like in Diamondville?
A typical July afternoon reaches 81°, a January night drops to 6°, and about 50 inches of snow falls in a normal winter. Colder January nights than 98% of U.S. towns; cooler July afternoons than 88% of U.S. towns.
How cold does it get in Diamondville in winter?
January nights average 6°. About 246 nights a year reach 32° or below and 44 reach 0° or below. In the coldest January of the last 30 years the month averaged 9°.
How much snow does Diamondville get?
About 50 inches in a normal winter at Kemmerer 2n, WY, most of it in January.
How hot does it get in Diamondville?
July, with a typical high of 81° and a low of 45°. About 4 days a year reach 90° (Kemmerer 2n, WY).
When is the first and last frost in Diamondville?
There is no reliable frost-free season: at Kemmerer 2n, WY, every month has nights at 32° or below, about 246 a year. In half of years the longest stretch without a freeze is about 66 days.
What growing zone is Diamondville in?
Zone 4b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −23°.
What is the best time of year to visit Diamondville?
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 Diamondville getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Diamondville.
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.