Wamsutter, WY Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Wamsutter's primary NOAA station, WAMSUTTER.
The climate verdict for Wamsutter
Dryness leads the climate profile for Wamsutter, Wyoming, with 8.4 inches of precipitation a year. NOAA records an annual average of 42°F. At 24/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 0% of scores.
- 42°F
- yearly average temperature, NOAA normal
- 24/100
- comfort score, above 0% of station-mapped location scores
- 8.4"
- annual precipitation · 51" snow
- 101 days
- frost-free growing season
Wamsutter: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00489459 · Wamsutter, WY 42°F mean · 8.4" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 42°F
- RANK-COOL #686
- PHOTO-FINISH ≈ Munsing Lakesho…
- PRCP-ARID 8.4"
- SWING-WIDE 49°F
- COMF-LOW 24/100
- LOAD-HEAT 8,458 HDD
- STN-1 USC00489459
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Munsing Lakeshore, MI (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every WY station list.
- Wamsutter (this station) 42°F
- Cold Trout Lake, MI 42°F
- Hot Evanston Burns…, WY 42°F
- Near Munsing Lakesho…, MI 42°F
- Near Altamont, UT 42°F
Wamsutter sits in Wyoming, the #5 coldest U.S. state at 43.3°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Wamsutter
Wamsutter: 9/100 · grade F
Wamsutter publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Wamsutter, not an official NOAA rating. Rankings still use Comfort Score 24/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 50.8 inches/year | 21/100 · F |
| Annual temperature balance | 42.3°F · 25.2° from 67.5°F | 10/100 · F |
| Normal heat + freeze calendar | 213 calendar days | 8/100 · F |
| Precipitation balance | 8.4 in · 26.6 from 35 in | 8/100 · F |
| Frost-free season | 101 days/year | 0/100 · F |
Wamsutter · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Wamsutter's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 67.6°F
- Coldest month
- 19.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Wamsutter sits across the climate record
Three NOAA fields for Wamsutter's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 90%
- Among 6,861 stations, Wamsutter sits in the cooler third of annual means.
- Annual precipitation
- Drier than 96%
- Wamsutter's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 76%
- Warmest-to-coldest month gap for Wamsutter is large versus 6,861 complete station-years.
How Wamsutter compares across U.S. station-mapped locations
Wamsutter's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
24 0th percentile score exceeds 0% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). This entry sits in this band.
- 30–40: 280 station-mapped locations (5%). Above this entry.
- 40–50: 1,113 station-mapped locations (18%). Above this entry.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Wamsutter's measured station temperature trend
MethodologyAcross 41 complete annual observations from 1951 to 2025, WAMSUTTER warmed at a fitted rate of 0.17°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Wamsutter primary station fitted change +0.17 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 30°F (-1°C) | 9°F (-13°C) | 19°F (-7°C) | 0.4" | 7.8" | 30.6 | 0.0 |
| February | 33°F (1°C) | 11°F (-11°C) | 22°F (-5°C) | 0.4" | 7.6" | 27.8 | 0.0 |
| March | 45°F (7°C) | 21°F (-6°C) | 33°F (1°C) | 0.5" | 7.2" | 29.4 | 0.0 |
| April | 55°F (13°C) | 27°F (-3°C) | 41°F (5°C) | 0.8" | 6.1" | 23.6 | 0.0 |
| May | 65°F (18°C) | 35°F (2°C) | 50°F (10°C) | 1.4" | 2.5" | 11.8 | 0.0 |
| June | 77°F (25°C) | 43°F (6°C) | 60°F (16°C) | 0.8" | 0.1" | 1.7 | 1.0 |
| July | 85°F (30°C) | 50°F (10°C) | 68°F (20°C) | 0.7" | 0.0" | 0.1 | 5.3 |
| August | 83°F (28°C) | 48°F (9°C) | 65°F (19°C) | 0.7" | 0.0" | 0.2 | 2.3 |
| September | 73°F (23°C) | 39°F (4°C) | 56°F (13°C) | 0.9" | 0.7" | 4.7 | 0.1 |
| October | 58°F (15°C) | 29°F (-2°C) | 44°F (6°C) | 0.8" | 3.0" | 20.0 | 0.0 |
| November | 42°F (6°C) | 18°F (-8°C) | 30°F (-1°C) | 0.6" | 7.0" | 28.1 | 0.0 |
| December | 30°F (-1°C) | 9°F (-13°C) | 20°F (-7°C) | 0.5" | 8.8" | 30.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 22, short of 90°F on every date, while 213 dates carry a normal low at or below freezing, the coldest 8°F near December 26.
The freezing stretch
The normal low stays at or below 32°F into May 7, then returns to freezing around October 8, covering 213 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 17, when 24% of years recorded at least a hundredth of an inch. The driest is July 9 at 13%. Summed across the calendar, that is about 62 wet dates a year.
The widest day
July 5 carries the biggest normal gap between afternoon and dawn, 35°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Wamsutter.
Where Wamsutter Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 213 nights a year, placing this among the most frost-prone tenth of ranked stations.
Aridity defines the water calendar: about 9 inches in a normal year lands this among the driest tenth of ranked stations.
Wamsutter earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 7.8"
4.5 days with precipitation
Snow: 7.6"
4.7 days with precipitation
Snow: 7.2"
4.9 days with precipitation
Snow: 6.1"
6.6 days with precipitation
Snow: 2.5"
7.3 days with precipitation
Snow: 0.1"
4.5 days with precipitation
4.3 days with precipitation
4.9 days with precipitation
Snow: 0.7"
5.2 days with precipitation
Snow: 3.0"
4.3 days with precipitation
Snow: 7.0"
4.6 days with precipitation
Snow: 8.8"
5.0 days with precipitation
Wamsutter spreads its precipitation across the year
Neither half of the year dominates here: June through August take 26% of the annual total and December through February 16%, with neither reaching the 35% that would mark a distinct wet season. Wamsutter has no dry season to plan around, though it does carry a wide 48.6°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 1.4" and February 0.4". The three wettest months together take 36% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Wamsutter is dry, and what does fall arrives gently
Only about 61 days a year record measurable precipitation here, 17% of the calendar, and they carry 8.4" between them. At roughly 0.14 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is May at about 7 wet days; the driest is July at about 4.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Wamsutter
Wamsutter averages 50.8 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 24 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 50.8 inches of depth.
- Days recording measurable snow: about 24 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 60% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 14
50% probability date
Last Spring Freeze
June 5
50% probability date
Growing Season
101 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,458
Higher = more heating needed
Cooling Degree Days
204
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Wamsutter on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (42°F here).
- Bowman, ND 42°F · 0.0°F off
- Britton, SD 42°F · 0.0°F off
- Cascade, MT 42°F · 0.0°F off
- Center, CO 42°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (8.4" here), excluding temperature-peer places.
- Selah, WA 8.4" · 0.0" off
- Wikieup, AZ 8.4" · 0.0" off
- Loa, UT 8.4" · 0.0" off
- Winnemucca, NV 8.5" · 0.1" off
Snow and freeze rhythm
When cold and snow define Wamsutter
heating led · dry · mid swing
Wamsutter's energy balance leans toward cold weather: 8,458 annual heating degree days against 204 for cooling. Its 48.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 101 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Wamsutter coldest normal
January
Averaging 19°F (-7°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Wamsutter typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Wamsutter snow peak
December
Wamsutter averages 50.8 inches of snow a year, with December the snowiest month on the normals.
Questions about Wamsutter's climate
How much snow does Wamsutter get? ▼
How cold does Wamsutter get in winter? ▼
How much energy does heating and cooling require in Wamsutter? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Wamsutter's primary station: WAMSUTTER (USC00489459). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 5681300). Match rule for Wamsutter: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Wamsutter comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.