Clark (3 mi NE), Wyoming climate: Climate normals at a NOAA weather station
Clark (3 mi NE)'s normal year runs from 7°F January nights to 85°F July afternoons, with 7.7 inches of precipitation and 21 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.0°C, January lows of −14°C, July highs of 30°C, 196 mm of precipitation a year.
- NOAA stationClark (3 mi NE)
- Station IDUSC00481775
- Location44.94°N 109.14°W
- Elevation4,117 ft (1,255 m)
On October 22, the normal high in Clark (3 mi NE) is 57°F and the normal low 26°F, and the chance of measurable rain or snow is 13%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Clark (3 mi NE).
- Jan 37° 7°
- Feb 40° 11°
- Mar 51° 21°
- Apr 57° 30°
- May 66° 40°
- Jun 76° 48°
- Jul 85° 54°
- Aug 84° 51°
- Sep 73° 42°
- Oct 60° 29°
- Nov 47° 18°
- Dec 38° 8°
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 Clark (3 mi NE) each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 7°F. The most precipitation falls in May (1.41 in), the least in December (0.24 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 37°F | 7°F | 22.0°F | 0.25 | 4.1 | 3 | <1 | 31 | 9 h 10 min |
| February | 40°F | 11°F | 25.6°F | 0.30 | 4.5 | 3 | <1 | 27 | 10 h 20 min |
| March | 51°F | 21°F | 35.7°F | 0.33 | 2.5 | 3 | <1 | 27 | 11 h 50 min |
| April | 57°F | 30°F | 43.5°F | 0.74 | 1.8 | 5 | <1 | 19 | 13 h 30 min |
| May | 66°F | 40°F | 52.8°F | 1.41 | 0.1 | 9 | <1 | 5 | 14 h 50 min |
| June | 76°F | 48°F | 62.0°F | 1.30 | 0.0 | 8 | 3 | <1 | 15 h 30 min |
| July | 85°F | 54°F | 69.5°F | 0.79 | 0.0 | 7 | 10 | <1 | 15 h 20 min |
| August | 84°F | 51°F | 67.4°F | 0.66 | 0.0 | 6 | 8 | <1 | 14 h 10 min |
| September | 73°F | 42°F | 57.6°F | 0.78 | 0.0 | 5 | 2 | 3 | 12 h 40 min |
| October | 60°F | 29°F | 44.2°F | 0.58 | 1.2 | 5 | <1 | 21 | 11 h |
| November | 47°F | 18°F | 32.4°F | 0.34 | 3.0 | 4 | <1 | 27 | 9 h 40 min |
| December | 38°F | 8°F | 22.8°F | 0.24 | 3.9 | 3 | <1 | 30 | 8 h 50 min |
| Year (annual) | 59°F | 30°F | 44.6°F | 7.72 | 21.1 | 61 | 22 | 191 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −14°C | −5.6°C | 6 mm | 10 cm |
| February | 4°C | −12°C | −3.6°C | 8 mm | 11 cm |
| March | 10°C | −6°C | 2.1°C | 8 mm | 6 cm |
| April | 14°C | −1°C | 6.4°C | 19 mm | 5 cm |
| May | 19°C | 4°C | 11.6°C | 36 mm | 0 cm |
| June | 24°C | 9°C | 16.7°C | 33 mm | 0 cm |
| July | 30°C | 12°C | 20.8°C | 20 mm | 0 cm |
| August | 29°C | 11°C | 19.7°C | 17 mm | 0 cm |
| September | 23°C | 5°C | 14.2°C | 20 mm | 0 cm |
| October | 15°C | −2°C | 6.8°C | 15 mm | 3 cm |
| November | 8°C | −8°C | 0.2°C | 9 mm | 8 cm |
| December | 3°C | −13°C | −5.1°C | 6 mm | 10 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00481775; 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 Clark (3 mi NE)?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, September has the fewest days with rain (5).
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 USC00481775.
When is the last frost at Clark (3 mi NE)?
In Clark (3 mi NE), the last spring frost (32°F) comes after May 18 in half of years and after June 4 in one year in ten; the first autumn frost comes before September 22 in half of years and before September 8 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 181 year in 10 after June 4; 9 in 10 after May 6
- First autumn frost, half of years before
- September 221 year in 10 before September 8; 9 in 10 before October 4
NOAA puts the median frost-free season at 125 days, and the season without a hard freeze (28°F) at 146 days.
A hard freeze (28°F) comes after May 7 in half of springs and before October 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Clark (3 mi NE) in zone 5a in ZIP code 82435, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 4b: the coldest night of a typical year reaches −24°F (29 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00481775; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Clark (3 mi NE)?
In a normal year in Clark (3 mi NE), 22 days a year reach 90°F (1 of them 100°F or more), 191 nights fall to 32°F or colder and 61 days bring measurable precipitation.
- Days at 90°F or more
- 22a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 191a normal year
- Days that stay below freezing
- 36high of 32°F or less
- Days with 0.01 inch of precipitation
- 61a normal year
- Days with 1 inch of snow or more
- 9a normal year
The highest temperature in this station's record (since 1961) is 111°F, on July 13, 2026; the lowest is −44°F, on December 21, 1990.
The wettest calendar year on that record is 2018, with 11.91 in; the snowiest season is 1975–76, with 68.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00481775; records: ACIS (NOAA Regional Climate Centers), station USC00481775. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Clark (3 mi NE)?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Clark (3 mi NE), 4.3 kWh per square metre a day. July is the sunniest month (82%) and May the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 2.0 |
| February | 76% | 3.0 |
| March | 74% | 4.2 |
| April | 71% | 5.2 |
| May | 67% | 5.7 |
| June | 75% | 6.7 |
| July | 82% | 7.0 |
| August | 80% | 5.9 |
| September | 78% | 4.6 |
| October | 69% | 3.0 |
| November | 68% | 2.0 |
| December | 69% | 1.6 |
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 Clark (3 mi NE) record?
A normal year at Clark (3 mi NE) brings 7,765 heating degree days, 45% more than the median U.S. place (5,373), and 370 cooling degree days, 59% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,029 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,335 | 0 |
| February | 1,105 | 0 |
| March | 908 | 0 |
| April | 647 | 0 |
| May | 382 | 5 |
| June | 137 | 48 |
| July | 28 | 167 |
| August | 50 | 125 |
| September | 245 | 24 |
| October | 645 | 1 |
| November | 978 | 0 |
| December | 1,306 | 0 |
| Year (annual) | 7,765 | 370 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00481775. 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 Clark (3 mi NE) been warmer than normal?
2025 averaged 45.7°F, 1.1°F above the 1991-2020 normal of 44.6°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 45.8°F | +1.2°F | 5.12 | 22.0 |
| 2022 | 43.7°F | −0.9°F | 6.55 | 23.4 |
| 2023 | 44.9°F | +0.3°F | 11.05 | 22.4 |
| 2024 | 46.5°F | +1.9°F | 7.26 | 9.3 |
| 2025 | 45.7°F | +1.1°F | 7.35 | 34.8 |
Over 40 complete years from 1962 to 2025, the station's annual mean temperature rose at a fitted 3.6°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00481775; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Clark (3 mi NE)'s climate compare?
Clark (3 mi NE) is warmer than 36 of the 71 places with their own NOAA record in Wyoming, and wetter than 8. Across the 7,247 U.S. stations with normals, its annual mean of 44.6°F is warmer than 18%.
In the Köppen classification computed from these normals, Clark (3 mi NE) is BWk: cold desert. 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.
Which places near Clark (3 mi NE) share this climate record?
Belfry has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Belfry, MT240 people · 15 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Clark (3 mi NE)'s climate
What is the coldest month at Clark (3 mi NE)?
January, with a normal high of 37°F and a normal low of 7°F. The warmest is July (85°F by day, 54°F at night).
Does it snow at Clark (3 mi NE)?
Yes: 21 inches in a normal year, falling on 15 days with 0.1 inch or more, the most in February (4.5 inches).
What is the rainiest month at Clark (3 mi NE)?
May, with 1.41 in of precipitation in a normal year; the driest is December with 0.24 in.
What plant hardiness zone is Clark (3 mi NE) in?
The USDA's 2023 map puts Clark (3 mi NE) in zone 5a in ZIP code 82435, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −24°F (29 years, 1991-2020): zone 4b.
How late can frost come at Clark (3 mi NE)?
In half of years the last 32°F night comes after May 18; in one year in ten it comes after June 4. Waiting until June 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Red Lodge, MT17 miles from this station, 43.4°F a year
- Heart Mountain, WY18 miles from this station, 45.6°F a year
- Powell, WY22 miles from this station, 43.2°F a year
- Deaver, WY27 miles from this station, 46.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made