Lusk, Wyoming climate: Normal weather by month, frost dates and records
Lusk's normal year runs from 13°F January nights to 84°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.9°C, January lows of −11°C, July highs of 29°C.
- NOAA stationLusk (2 mi SW)
- Station IDUSC00485830
- Location42.75°N 104.48°W
- Elevation5,090 ft (1,551 m)
- Population1,401
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Lusk.
- Jan 35° 13°
- Feb 37° 13°
- Mar 47° 22°
- Apr 55° 28°
- May 64° 39°
- Jun 76° 47°
- Jul 84° 54°
- Aug 83° 52°
- Sep 74° 42°
- Oct 58° 31°
- Nov 46° 20°
- Dec 37° 12°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Lusk each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 13°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 35°F | 13°F | 23.9°F | – | <1 | 30 | 9 h 20 min |
| February | 37°F | 13°F | 25.3°F | – | <1 | 27 | 10 h 30 min |
| March | 47°F | 22°F | 34.1°F | – | <1 | 27 | 11 h 50 min |
| April | 55°F | 28°F | 41.5°F | – | <1 | 22 | 13 h 20 min |
| May | 64°F | 39°F | 51.1°F | – | <1 | 8 | 14 h 40 min |
| June | 76°F | 47°F | 61.5°F | – | 2 | 1 | 15 h 20 min |
| July | 84°F | 54°F | 68.9°F | – | 10 | <1 | 15 h |
| August | 83°F | 52°F | 67.6°F | – | 9 | <1 | 14 h |
| September | 74°F | 42°F | 57.8°F | – | 2 | 4 | 12 h 30 min |
| October | 58°F | 31°F | 44.4°F | – | <1 | 19 | 11 h 10 min |
| November | 46°F | 20°F | 32.7°F | – | <1 | 27 | 9 h 50 min |
| December | 37°F | 12°F | 24.2°F | – | <1 | 30 | 9 h |
| Year (annual) | 58°F | 31°F | 44.4°F | – | 23 | 193 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 2°C | −11°C | −4.5°C |
| February | 3°C | −10°C | −3.7°C |
| March | 8°C | −6°C | 1.2°C |
| April | 13°C | −2°C | 5.3°C |
| May | 18°C | 4°C | 10.6°C |
| June | 24°C | 8°C | 16.4°C |
| July | 29°C | 12°C | 20.5°C |
| August | 29°C | 11°C | 19.8°C |
| September | 23°C | 6°C | 14.3°C |
| October | 15°C | −1°C | 6.9°C |
| November | 8°C | −7°C | 0.4°C |
| December | 3°C | −11°C | −4.3°C |
NOAA publishes no 1991-2020 snowfall normal for this station. Lusk's own co-op station Lusk (25 mi NE) does: 49 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USC00485830; 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.
When is the best weather to visit Lusk?
Normal highs sit between 65°F and 85°F in June, July, August and September.
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 USC00485830.
When is the last frost in Lusk?
In Lusk, the last spring frost (32°F) comes after May 23 in half of years and after June 8 in one year in ten; the first autumn frost comes before September 20 in half of years and before September 4 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 231 year in 10 after June 8; 9 in 10 after May 9
- First autumn frost, half of years before
- September 201 year in 10 before September 4; 9 in 10 before October 4
NOAA puts the median frost-free season at 119 days, and the season without a hard freeze (28°F) at 141 days.
A hard freeze (28°F) comes after May 10 in half of springs and before October 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Lusk in zone 5a in ZIP code 82227, 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 USC00485830; 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 in Lusk?
In a normal year in Lusk, 23 days a year reach 90°F (1 of them 100°F or more) and 193 nights fall to 32°F or colder.
- Days at 90°F or more
- 23a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 193a normal year
- Days that stay below freezing
- 43high of 32°F or less
The highest temperature in this station's record (since 1893) is 105°F, on June 23, 1954; the lowest is −36°F, on December 22, 1989.
The wettest calendar year on that record is 1942, with 23.87 in; the snowiest season is 1919–20, with 102.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00485830; records: ACIS (NOAA Regional Climate Centers), station USC00485830. Records use complete months only; a month missing more than three days is left out.
How sunny is Lusk?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Lusk, 4.5 kWh per square metre a day. July is the sunniest month (86%) and February the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.1 |
| February | 72% | 2.9 |
| March | 73% | 4.2 |
| April | 72% | 5.2 |
| May | 74% | 6.2 |
| June | 82% | 7.2 |
| July | 86% | 7.1 |
| August | 86% | 6.3 |
| September | 84% | 5.0 |
| October | 77% | 3.4 |
| November | 76% | 2.4 |
| December | 72% | 1.8 |
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 much heating and cooling does Lusk need?
A normal year in Lusk brings 7,816 heating degree days, 45% more than the median U.S. place (5,373), and 348 cooling degree days, 62% 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 1,976 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,273 | 0 |
| February | 1,113 | 0 |
| March | 957 | 0 |
| April | 706 | 0 |
| May | 433 | 2 |
| June | 147 | 42 |
| July | 33 | 155 |
| August | 41 | 121 |
| September | 242 | 27 |
| October | 637 | 0 |
| November | 970 | 0 |
| December | 1,264 | 0 |
| Year (annual) | 7,816 | 348 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00485830. 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 Lusk's climate compare?
Lusk is warmer than 34 of the other 70 places with their own NOAA record in Wyoming. Across the 7,247 U.S. stations with normals, its annual mean of 44.4°F is warmer than 17%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Lusk share this climate record?
Manville 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.
- Manville, WY91 people · 7 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Lusk's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Lusk. This page uses Lusk (2 mi SW); the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Lusk (25 mi NE) USC00485833 | 25 mi NE | 4,136 ft | 47.6°F | 15°F | 88°F | 17.7 | 49 | May 14 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Lusk's climate
What is the coldest month in Lusk?
January, with a normal high of 35°F and a normal low of 13°F. The warmest is July (84°F by day, 54°F at night).
Does it snow in Lusk?
Yes. NOAA publishes no 1991-2020 snowfall normal for Lusk's NOAA station; Lusk's own co-op station Lusk (25 mi NE) records 49 inches of snow in a normal year.
What plant hardiness zone is Lusk in?
The USDA's 2023 map puts Lusk in zone 5a in ZIP code 82227, the nearest ZIP area.
How late can frost come in Lusk?
In half of years the last 32°F night comes after May 23; in one year in ten it comes after June 8. Waiting until June 8 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Torrington (29 mi N), WY24 miles from this station, 46.0°F a year
- Lance Creek (11 mi NNE), WY30 miles from this station, 46.5°F a year
- Harrison, NE30 miles from this station, 44.6°F a year
- Glendo, WY32 miles from this station, 47.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made