Darwin Rch, WY Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Darwin Rch's primary NOAA station, DARWIN RCH.
The climate verdict for Darwin Rch
Dryness leads the climate profile for Darwin Rch, Wyoming, with 16.7 inches of precipitation a year. NOAA records an annual average of 31°F. At 35/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 4% of scores.
- 31°F
- average temperature, NOAA 1991-2020 normal
- 35/100
- comfort score, above 4% of station-mapped location scores
- 16.7"
- annual precipitation · 109" snow
Darwin Rch: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00482375 · Darwin Rch, WY 31°F mean · 16.7" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 31°F
- RANK-COOL #69
- PHOTO-FINISH ≈ Fort Knox Mine
- PRCP-DRY 16.7"
- SWING-MID 44°F
- COMF-LOW 35/100
- LOAD-HEAT 12,256 HDD
- STN-1 USC00482375
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Fort Knox Mine, AK ( -0.8 °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 Daniel Fish Hat…, WY 33°F
- Near Climax, CO 32°F
- Darwin Rch (this station) 31°F
- Near Fort Knox Mine, AK 31°F
- Cold Puntilla, AK 30°F
Darwin Rch 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 · Darwin Rch
Darwin Rch: 7/100 · grade F
Darwin Rch publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Darwin Rch, not an official NOAA rating. Rankings still use Comfort Score 35/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 16.7 in · 18.3 from 35 in | 35/100 · F |
| Annual temperature balance | 31.3°F · 36.2° from 67.5°F | 0/100 · F |
| Normal heat + freeze calendar | 299 calendar days | 0/100 · F |
| Snowfall burden | 108.6 inches/year | 0/100 · F |
Darwin Rch · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Darwin Rch is a continental Köppen climate: Dfc
Coldest-month mean 10.2°F and warmest-month mean 53.8°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
- 53.8°F
- Coldest month
- 10.2°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 Darwin Rch sits across the climate record
Three NOAA fields for Darwin Rch'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, Darwin Rch sits in the cooler third of annual means.
- Annual precipitation
- Drier than 79%
- Darwin Rch's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 51st percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Darwin Rch compares across U.S. station-mapped locations
Darwin Rch's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
35 4th percentile score exceeds 4% 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%). This entry sits in this band.
- 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
Darwin Rch's measured station temperature trend
MethodologyAcross 36 complete annual observations from 1975 to 2025, DARWIN RCH warmed at a fitted rate of 0.30°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Darwin Rch primary station fitted change +0.30 °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) | -6°F (-21°C) | 10°F (-12°C) | 1.1" | 14.5" | 31.0 | 0.0 |
| February | 29°F (-2°C) | -4°F (-20°C) | 12°F (-11°C) | 1.1" | 15.7" | 28.0 | 0.0 |
| March | 36°F (2°C) | 5°F (-15°C) | 21°F (-6°C) | 1.2" | 16.0" | 30.9 | 0.0 |
| April | 43°F (6°C) | 16°F (-9°C) | 30°F (-1°C) | 1.4" | 13.3" | 29.8 | 0.0 |
| May | 54°F (12°C) | 26°F (-3°C) | 40°F (4°C) | 1.7" | 5.2" | 27.8 | 0.0 |
| June | 64°F (18°C) | 32°F (0°C) | 48°F (9°C) | 1.8" | 1.4" | 17.0 | 0.0 |
| July | 72°F (22°C) | 36°F (2°C) | 54°F (12°C) | 1.2" | 0.0" | 8.2 | 0.0 |
| August | 71°F (22°C) | 34°F (1°C) | 52°F (11°C) | 1.4" | 0.0" | 12.5 | 0.0 |
| September | 62°F (17°C) | 28°F (-2°C) | 45°F (7°C) | 1.9" | 1.9" | 23.4 | 0.0 |
| October | 48°F (9°C) | 19°F (-7°C) | 34°F (1°C) | 1.5" | 8.6" | 29.9 | 0.0 |
| November | 35°F (1°C) | 6°F (-14°C) | 20°F (-6°C) | 1.2" | 15.1" | 29.9 | 0.0 |
| December | 25°F (-4°C) | -5°F (-20°C) | 10°F (-12°C) | 1.2" | 16.9" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 73°F around July 23, short of 90°F on every date, while 299 dates carry a normal low at or below freezing, the coldest -6°F near December 24.
The freezing stretch
The normal low stays at or below 32°F into June 19, then returns to freezing around August 26, covering 299 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 26, when 37% of years recorded at least a hundredth of an inch. The driest is October 22 at 25%. Summed across the calendar, that is about 111 wet dates a year.
The widest day
July 29 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Darwin Rch.
Where Darwin Rch Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 299 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 37°F, sharper than nine in ten ranked stations see.
Darwin Rch 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: 14.5"
9.3 days with precipitation
Snow: 15.7"
8.8 days with precipitation
Snow: 16.0"
9.5 days with precipitation
Snow: 13.3"
10.2 days with precipitation
Snow: 5.2"
11.1 days with precipitation
Snow: 1.4"
10.1 days with precipitation
8.1 days with precipitation
8.7 days with precipitation
Snow: 1.9"
8.2 days with precipitation
Snow: 8.6"
8.1 days with precipitation
Snow: 15.1"
8.6 days with precipitation
Snow: 16.9"
10.5 days with precipitation
Darwin Rch 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 20%, with neither reaching the 35% that would mark a distinct wet season. Darwin Rch has no dry season to plan around, though it does carry a 43.6°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 1.9" and January 1.1". The three wettest months together take 32% 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.
Darwin Rch is dry, and what does fall arrives gently
Only about 111 days a year record measurable precipitation here, 30% of the calendar, and they carry 16.7" between them. At roughly 0.15 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 11 wet days; the driest is July at about 8.
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 Darwin Rch
Darwin Rch averages 108.6 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 58 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: 108.6 inches of depth.
- Days recording measurable snow: about 58 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 65% 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
12,256
Higher = more heating needed
Cooling Degree Days
0
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WY closest to Darwin Rch 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 (31°F here).
- Bethel, AK 31°F · 0.1°F off
- College, AK 31°F · 0.7°F off
- Big Delta, AK 30°F · 1.3°F off
- Mccarthy, AK 30°F · 1.4°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (16.7" here), excluding temperature-peer places.
- Minot, ND 16.7" · 0.0" off
- Bushnell, NE 16.7" · 0.0" off
- Lewistown, MT 16.8" · 0.0" off
- Elida, NM 16.7" · 0.0" off
Snow and freeze rhythm
When cold and snow define Darwin Rch
heating led · dry · mid swing
Darwin Rch's energy balance leans toward cold weather: 12,256 annual heating degree days against 0 for cooling. Its 43.6°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 Darwin Rch. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
-
1. Darwin Rch coldest normal
December
Averaging 10°F (-12°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Darwin Rch typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Darwin Rch snow peak
December
Darwin Rch averages 108.6 inches of snow a year, with December the snowiest month on the normals.
Questions about Darwin Rch's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Darwin Rch's primary station: DARWIN RCH (USC00482375). 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 Darwin Rch; 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 Darwin Rch 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.