Wapiti (1 mi WSW), Wyoming climate: Climate normals at a NOAA weather station
Wapiti (1 mi WSW)'s normal year runs from 19°F December nights to 83°F July afternoons, with 10.3 inches of precipitation and 31 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.2°C, December lows of −7°C, July highs of 28°C, 263 mm of precipitation a year.
- NOAA stationWapiti (1 mi WSW)
- Station IDUSC00489467
- Location44.46°N 109.42°W
- Elevation5,558 ft (1,694 m)
On October 23, the normal high in Wapiti (1 mi WSW) is 54°F and the normal low 31°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 Wapiti (1 mi WSW).
- Jan 39° 19°
- Feb 39° 17°
- Mar 47° 24°
- Apr 53° 29°
- May 62° 37°
- Jun 73° 44°
- Jul 83° 51°
- Aug 81° 49°
- Sep 71° 42°
- Oct 57° 33°
- Nov 45° 25°
- Dec 38° 19°
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 Wapiti (1 mi WSW) each month?
July is the warmest month, with normal highs of 83°F; December the coldest, with normal lows of 19°F. The most precipitation falls in June (1.44 in), the least in February (0.42 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 19°F | 28.6°F | 0.50 | 5.7 | 3 | <1 | 27 | 9 h 10 min |
| February | 39°F | 17°F | 28.3°F | 0.42 | 3.9 | 3 | <1 | 26 | 10 h 30 min |
| March | 47°F | 24°F | 35.6°F | 0.50 | 4.3 | 4 | <1 | 25 | 11 h 50 min |
| April | 53°F | 29°F | 41.2°F | 1.08 | 4.4 | 6 | <1 | 19 | 13 h 30 min |
| May | 62°F | 37°F | 49.7°F | 1.43 | 0.7 | 7 | <1 | 9 | 14 h 50 min |
| June | 73°F | 44°F | 58.4°F | 1.44 | 0.0 | 7 | 1 | 1 | 15 h 30 min |
| July | 83°F | 51°F | 67.0°F | 0.85 | 0.0 | 5 | 5 | <1 | 15 h 10 min |
| August | 81°F | 49°F | 65.4°F | 0.84 | 0.0 | 6 | 2 | <1 | 14 h 10 min |
| September | 71°F | 42°F | 56.7°F | 1.11 | 0.2 | 4 | <1 | 4 | 12 h 40 min |
| October | 57°F | 33°F | 45.2°F | 0.94 | 3.6 | 5 | <1 | 13 | 11 h |
| November | 45°F | 25°F | 35.2°F | 0.62 | 4.1 | 4 | <1 | 23 | 9 h 40 min |
| December | 38°F | 19°F | 28.1°F | 0.61 | 3.7 | 4 | <1 | 28 | 8 h 50 min |
| Year (annual) | 57°F | 33°F | 45.0°F | 10.34 | 30.6 | 59 | 8 | 174 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −7°C | −1.9°C | 13 mm | 14 cm |
| February | 4°C | −8°C | −2.1°C | 11 mm | 10 cm |
| March | 8°C | −4°C | 2.0°C | 13 mm | 11 cm |
| April | 12°C | −2°C | 5.1°C | 27 mm | 11 cm |
| May | 17°C | 3°C | 9.8°C | 36 mm | 2 cm |
| June | 23°C | 7°C | 14.7°C | 37 mm | 0 cm |
| July | 28°C | 11°C | 19.4°C | 22 mm | 0 cm |
| August | 27°C | 10°C | 18.6°C | 21 mm | 0 cm |
| September | 22°C | 6°C | 13.7°C | 28 mm | 1 cm |
| October | 14°C | 1°C | 7.3°C | 24 mm | 9 cm |
| November | 7°C | −4°C | 1.8°C | 16 mm | 10 cm |
| December | 3°C | −7°C | −2.2°C | 15 mm | 9 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00489467; 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 Wapiti (1 mi WSW)?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (4).
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 USC00489467.
When is the last frost at Wapiti (1 mi WSW)?
In Wapiti (1 mi WSW), the last spring frost (32°F) comes after May 27 in half of years and after June 12 in one year in ten; the first autumn frost comes before September 25 in half of years and before September 7 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 271 year in 10 after June 12; 9 in 10 after May 11
- First autumn frost, half of years before
- September 251 year in 10 before September 7; 9 in 10 before October 9
NOAA puts the median frost-free season at 121 days, and the season without a hard freeze (28°F) at 146 days.
A hard freeze (28°F) comes after May 11 in half of springs and before October 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wapiti (1 mi WSW) in zone 5a in ZIP code 82450, the nearest ZIP area.
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00489467; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Wapiti (1 mi WSW)?
In a normal year in Wapiti (1 mi WSW), 8 days a year reach 90°F, 174 nights fall to 32°F or colder and 59 days bring measurable precipitation.
- Days at 90°F or more
- 8a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 174a normal year
- Days that stay below freezing
- 33high of 32°F or less
- Days with 0.01 inch of precipitation
- 59a normal year
- Days with 1 inch of snow or more
- 13a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00489467.
How sunny is it at Wapiti (1 mi WSW)?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Wapiti (1 mi WSW), 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 Wapiti (1 mi WSW) record?
A normal year at Wapiti (1 mi WSW) brings 7,509 heating degree days, 40% more than the median U.S. place (5,373), and 229 cooling degree days, 75% 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 1,684 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,127 | 0 |
| February | 1,027 | 0 |
| March | 912 | 0 |
| April | 714 | 0 |
| May | 475 | 1 |
| June | 216 | 17 |
| July | 52 | 113 |
| August | 70 | 82 |
| September | 265 | 16 |
| October | 614 | 0 |
| November | 894 | 0 |
| December | 1,144 | 0 |
| Year (annual) | 7,509 | 229 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00489467. 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.
How does Wapiti (1 mi WSW)'s climate compare?
Wapiti (1 mi WSW) is warmer than 42 of the 71 places with their own NOAA record in Wyoming, and wetter than 22. Across the 7,247 U.S. stations with normals, its annual mean of 45.0°F is warmer than 19%.
In the Köppen classification computed from these normals, Wapiti (1 mi WSW) is BSk: cold semi-arid steppe. 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 Wapiti (1 mi WSW)'s climate
What is the coldest month at Wapiti (1 mi WSW)?
December, with a normal high of 38°F and a normal low of 19°F. The warmest is July (83°F by day, 51°F at night).
Does it snow at Wapiti (1 mi WSW)?
Yes: 31 inches in a normal year, falling on 16 days with 0.1 inch or more, the most in January (5.7 inches).
What is the rainiest month at Wapiti (1 mi WSW)?
June, with 1.44 in of precipitation in a normal year; the driest is February with 0.42 in.
What plant hardiness zone is Wapiti (1 mi WSW) in?
The USDA's 2023 map puts Wapiti (1 mi WSW) in zone 5a in ZIP code 82450, the nearest ZIP area.
How late can frost come at Wapiti (1 mi WSW)?
In half of years the last 32°F night comes after May 27; in one year in ten it comes after June 12. Waiting until June 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Buffalo Bill Dam, WY12 miles from this station, 46.0°F a year
- Cody, WY16 miles from this station, 46.8°F a year
- Pahaska, WY27 miles from this station, 38.0°F a year
- Heart Mountain, WY29 miles from this station, 45.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made