Snake Rvr, WY Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Snake Rvr's primary NOAA station, SNAKE RVR.
The climate verdict for Snake Rvr
Snake Rvr, Wyoming has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 34°F. At 47/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 17% of scores.
- 34°F
- annual average temperature (NOAA normal)
- 47/100
- comfort score, above 17% of station-mapped location scores
- 32.8"
- annual precipitation · 294" snow
Snake Rvr: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00488315 · Snake Rvr, WY 34°F mean · 32.8" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 34°F
- RANK-COOL #69
- PHOTO-FINISH ≈ Electric Lake
- PRCP-MID 32.8"
- SWING-MID 44°F
- COMF-LOW 47/100
- LOAD-HEAT 11,149 HDD
- STN-1 USC00488315
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Electric Lake, UT ( -0.1 °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.
- Hot Skwentna, AK 35°F
- Snake Rvr (this station) 34°F
- Cold Kenai, AK 34°F
- Near Electric Lake, UT 34°F
- Near Silver Gate, MT 34°F
Snake Rvr 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 · Snake Rvr
Snake Rvr: 18/100 · grade F
Snake Rvr publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Snake Rvr, not an official NOAA rating. Rankings still use Comfort Score 47/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 32.8 in · 2.2 from 35 in | 91/100 · A |
| Annual temperature balance | 34.4°F · 33.1° from 67.5°F | 0/100 · F |
| Normal heat + freeze calendar | 279 calendar days | 0/100 · F |
| Snowfall burden | 293.6 inches/year | 0/100 · F |
Snake Rvr · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Snake Rvr is a continental Köppen climate: Dfc
Coldest-month mean 13.3°F and warmest-month mean 57.4°F place this station in continental, no dry season, cool summer climates (Dfc). Class Dfc is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, cool summer.
- Köppen code
- Dfc
- Group
- Continental
- Warmest month
- 57.4°F
- Coldest month
- 13.3°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 Snake Rvr sits across the climate record
Three NOAA fields for Snake Rvr's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 99%
- Among 6,861 stations, Snake Rvr sits in the cooler third of annual means.
- Annual precipitation
- 44th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 54th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Snake Rvr compares across U.S. station-mapped locations
Snake Rvr's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
47 17th percentile score exceeds 17% 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%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 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
Snake Rvr's measured station temperature trend
MethodologyAcross 49 complete annual observations from 1910 to 2025, SNAKE RVR warmed at a fitted rate of 0.16°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Snake Rvr primary station fitted change +0.16 °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 | 26°F (-3°C) | 1°F (-17°C) | 13°F (-10°C) | 3.9" | 65.0" | 31.0 | 0.0 |
| February | 30°F (-1°C) | 3°F (-16°C) | 16°F (-9°C) | 3.1" | 50.2" | 28.0 | 0.0 |
| March | 39°F (4°C) | 11°F (-12°C) | 25°F (-4°C) | 3.0" | 31.0" | 30.7 | 0.0 |
| April | 46°F (8°C) | 20°F (-6°C) | 33°F (0°C) | 2.8" | 25.9" | 29.3 | 0.0 |
| May | 56°F (14°C) | 28°F (-2°C) | 42°F (6°C) | 2.8" | 5.0" | 25.8 | 0.0 |
| June | 66°F (19°C) | 34°F (1°C) | 50°F (10°C) | 2.4" | 0.3" | 13.7 | 0.0 |
| July | 77°F (25°C) | 38°F (3°C) | 57°F (14°C) | 1.4" | 0.0" | 5.6 | 0.5 |
| August | 76°F (25°C) | 35°F (2°C) | 56°F (13°C) | 1.6" | 0.0" | 10.9 | 0.2 |
| September | 66°F (19°C) | 28°F (-2°C) | 47°F (8°C) | 1.9" | 0.2" | 24.1 | 0.0 |
| October | 51°F (10°C) | 21°F (-6°C) | 36°F (2°C) | 2.3" | 8.9" | 29.7 | 0.0 |
| November | 35°F (2°C) | 11°F (-12°C) | 23°F (-5°C) | 3.5" | 42.4" | 29.7 | 0.0 |
| December | 25°F (-4°C) | 2°F (-17°C) | 14°F (-10°C) | 4.2" | 64.7" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 79°F around July 27, short of 90°F on every date, while 279 dates carry a normal low at or below freezing, the coldest 0°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into June 1, then returns to freezing around August 28, covering 279 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 December 16, when 63% of years recorded at least a hundredth of an inch. The driest is August 13 at 29%. Summed across the calendar, that is about 161 wet dates a year.
The widest day
August 13 carries the biggest normal gap between afternoon and dawn, 41°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Snake Rvr.
Where Snake Rvr Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 279 nights a year, placing this among the most frost-prone tenth of ranked stations.
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 41°F, sharper than nine in ten ranked stations see.
Snake Rvr 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: 65.0"
18.0 days with precipitation
Snow: 50.2"
16.0 days with precipitation
Snow: 31.0"
14.8 days with precipitation
Snow: 25.9"
14.8 days with precipitation
Snow: 5.0"
12.5 days with precipitation
Snow: 0.3"
12.7 days with precipitation
9.0 days with precipitation
9.2 days with precipitation
Snow: 0.2"
8.7 days with precipitation
Snow: 8.9"
10.2 days with precipitation
Snow: 42.4"
14.9 days with precipitation
Snow: 64.7"
19.6 days with precipitation
Snake Rvr spreads its precipitation across the year
Neither half of the year dominates here: June through August take 17% of the annual total and December through February 34%, with neither reaching the 35% that would mark a distinct wet season. Snake Rvr has no dry season to plan around, though it does carry a 44.1°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 4.2" and July 1.4". The three wettest months together take 35% 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.
How Snake Rvr's precipitation splits across the calendar
About 160 days a year record measurable precipitation here, carrying 32.8" between them, or roughly 0.20 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Snake Rvr
Snake Rvr averages 293.6 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 92 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: 293.6 inches of depth.
- Days recording measurable snow: about 92 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 89% 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
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
11,149
Higher = more heating needed
Cooling Degree Days
7
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Snake Rvr 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 (34°F here).
- Stanley, ID 34°F · 0.0°F off
- Silver Gate, MT 34°F · 0.1°F off
- Skwentna, AK 35°F · 0.1°F off
- Cooke City, MT 34°F · 0.2°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (32.8" here), excluding temperature-peer places.
- Ashland, WI 32.8" · 0.0" off
- Big Bay, MI 32.8" · 0.0" off
- Northport, MI 32.9" · 0.0" off
- Pocahontas, IA 32.8" · 0.0" off
Snow and freeze rhythm
When cold and snow define Snake Rvr
heating led · moderate · mid swing
Snake Rvr's energy balance leans toward cold weather: 11,149 annual heating degree days against 7 for cooling. Its 44.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
A frost-free growing-season length is not available for Snake Rvr. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
-
1. Snake Rvr coldest normal
January
Averaging 13°F (-10°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Snake Rvr typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Snake Rvr snow peak
January
Snake Rvr averages 293.6 inches of snow a year, with January the snowiest month on the normals.
Questions about Snake Rvr's climate
How much snow does Snake Rvr get? ▼
How cold does Snake Rvr get in winter? ▼
How much energy does heating and cooling require in Snake Rvr? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Snake Rvr's primary station: SNAKE RVR (USC00488315). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Snake Rvr; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Snake Rvr 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.