Darwin Ranch, Wyoming climate: Climate normals at a NOAA weather station
Darwin Ranch's normal year runs from −5°F December nights to 72°F July afternoons, with 16.7 inches of precipitation and 109 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of −0.4°C, December lows of −20°C, July highs of 22°C, 425 mm of precipitation a year.
- NOAA stationDarwin Ranch
- Station IDUSC00482375
- Location43.41°N 110.16°W
- Elevation8,190 ft (2,496 m)
On October 23, the normal high in Darwin Ranch is 45°F and the normal low 17°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Darwin Ranch.
- Jan 26° -6°
- Feb 29° -4°
- Mar 36° 5°
- Apr 43° 16°
- May 54° 26°
- Jun 64° 32°
- Jul 72° 36°
- Aug 71° 34°
- Sep 62° 28°
- Oct 48° 19°
- Nov 35° 6°
- Dec 25° -5°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Darwin Ranch each month?
July is the warmest month, with normal highs of 72°F; December the coldest, with normal lows of −5°F. The most precipitation falls in September (1.88 in), the least in January (1.07 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 26°F | −6°F | 10.4°F | 1.07 | 14.5 | 9 | <1 | 31 | 9 h 20 min |
| February | 29°F | −4°F | 12.3°F | 1.12 | 15.7 | 9 | <1 | 28 | 10 h 30 min |
| March | 36°F | 5°F | 20.7°F | 1.24 | 16.0 | 10 | <1 | 31 | 11 h 50 min |
| April | 43°F | 16°F | 29.5°F | 1.39 | 13.3 | 10 | <1 | 30 | 13 h 20 min |
| May | 54°F | 26°F | 39.8°F | 1.67 | 5.2 | 11 | <1 | 28 | 14 h 40 min |
| June | 64°F | 32°F | 47.7°F | 1.82 | 1.4 | 10 | <1 | 17 | 15 h 20 min |
| July | 72°F | 36°F | 53.8°F | 1.20 | 0.0 | 8 | <1 | 8 | 15 h 10 min |
| August | 71°F | 34°F | 52.3°F | 1.39 | 0.0 | 9 | <1 | 13 | 14 h |
| September | 62°F | 28°F | 45.0°F | 1.88 | 1.9 | 8 | <1 | 23 | 12 h 30 min |
| October | 48°F | 19°F | 33.6°F | 1.52 | 8.6 | 8 | <1 | 30 | 11 h 10 min |
| November | 35°F | 6°F | 20.4°F | 1.19 | 15.1 | 9 | <1 | 30 | 9 h 40 min |
| December | 25°F | −5°F | 10.2°F | 1.23 | 16.9 | 11 | <1 | 31 | 9 h |
| Year (annual) | 47°F | 16°F | 31.3°F | 16.72 | 108.6 | 111 | <1 | 299 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −3°C | −21°C | −12.0°C | 27 mm | 37 cm |
| February | −2°C | −20°C | −10.9°C | 28 mm | 40 cm |
| March | 2°C | −15°C | −6.3°C | 31 mm | 41 cm |
| April | 6°C | −9°C | −1.4°C | 35 mm | 34 cm |
| May | 12°C | −3°C | 4.3°C | 42 mm | 13 cm |
| June | 18°C | 0°C | 8.7°C | 46 mm | 4 cm |
| July | 22°C | 2°C | 12.1°C | 30 mm | 0 cm |
| August | 22°C | 1°C | 11.3°C | 35 mm | 0 cm |
| September | 17°C | −2°C | 7.2°C | 48 mm | 5 cm |
| October | 9°C | −7°C | 0.9°C | 39 mm | 22 cm |
| November | 1°C | −14°C | −6.4°C | 30 mm | 38 cm |
| December | −4°C | −20°C | −12.1°C | 31 mm | 43 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482375; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Darwin Ranch?
Normal highs sit between 65°F and 85°F in July and August. Of those, July has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482375.
How hot and how cold does it get at Darwin Ranch?
In a normal year in Darwin Ranch, a 90°F day is rare, 299 nights fall to 32°F or colder and 111 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 299a normal year
- Days that stay below freezing
- 91high of 32°F or less
- Days with 0.01 inch of precipitation
- 111a normal year
- Days with 1 inch of snow or more
- 37a normal year
The highest temperature in this station's record (since 1974) is 87°F, on July 12, 2002; the lowest is −53°F, on January 1, 1979.
The wettest calendar year on that record is 2011, with 28.17 in; the snowiest season is 2016–17, with 181.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00482375; records: ACIS (NOAA Regional Climate Centers), station USC00482375. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Darwin Ranch?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds at Darwin Ranch, 4.4 kWh per square metre a day. July is the sunniest month (85%) and December the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 2.0 |
| February | 72% | 2.9 |
| March | 72% | 4.2 |
| April | 72% | 5.4 |
| May | 69% | 5.9 |
| June | 77% | 7.0 |
| July | 85% | 7.4 |
| August | 83% | 6.3 |
| September | 80% | 4.8 |
| October | 70% | 3.1 |
| November | 65% | 2.0 |
| December | 64% | 1.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Darwin Ranch record?
A normal year at Darwin Ranch brings 12,256 heating degree days, 2.3 times the median U.S. place (5,373), and 0 cooling degree days, 100% fewer than the median (908). Twelve months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 287 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,693 | 0 |
| February | 1,476 | 0 |
| March | 1,373 | 0 |
| April | 1,067 | 0 |
| May | 780 | 0 |
| June | 518 | 0 |
| July | 347 | 0 |
| August | 394 | 0 |
| September | 600 | 0 |
| October | 975 | 0 |
| November | 1,338 | 0 |
| December | 1,697 | 0 |
| Year (annual) | 12,256 | 0 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482375. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Darwin Ranch been warmer than normal?
2025 averaged 33.8°F, 2.5°F above the 1991-2020 normal of 31.3°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 33.0°F | +1.7°F | 12.85 | 89.6 |
| 2023 | 31.3°F | at normal | 17.66 | 90.5 |
| 2024 | 33.0°F | +1.7°F | 13.56 | 151.3 |
| 2025 | 33.8°F | +2.5°F | 15.20 | 116.9 |
Over 36 complete years from 1975 to 2025, the station's annual mean temperature rose at a fitted 5.4°F per century (+0.30°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00482375; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Darwin Ranch's climate compare?
Darwin Ranch is warmer than 0 of the 71 places with their own NOAA record in Wyoming, and wetter than 50. Across the 7,247 U.S. stations with normals, its annual mean of 31.3°F is warmer than 1%.
In the Köppen classification computed from these normals, Darwin Ranch is Dfc: continental, no dry season, cool summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Darwin Ranch's climate
What is the coldest month at Darwin Ranch?
December, with a normal high of 25°F and a normal low of −5°F. The warmest is July (72°F by day, 36°F at night).
Does it snow at Darwin Ranch?
Yes: 109 inches in a normal year, falling on 58 days with 0.1 inch or more, the most in December (16.9 inches).
What is the rainiest month at Darwin Ranch?
September, with 1.88 in of precipitation in a normal year; the driest is January with 1.07 in.
What plant hardiness zone is Darwin Ranch in?
By the same method at the station, the coldest night of a typical year reaches −36°F (28 years, 1991-2020): zone 3a.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Bondurant, WY19 miles from this station, 37.5°F a year
- Dubois, WY27 miles from this station, 40.5°F a year
- Jackson, WY30 miles from this station, 37.9°F a year
- Moose, WY32 miles from this station, 38.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made