Lander, Wyoming climate: Normal weather by month, frost dates and records
Lander's normal year runs from 10°F January nights to 88°F July afternoons, with 13.2 inches of precipitation and 88 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.3°C, January lows of −12°C, July highs of 31°C, 336 mm of precipitation a year.
- NOAA stationLander Airport
- Station IDUSW00024021
- Location42.82°N 108.73°W
- Elevation5,592 ft (1,704 m)
- Population7,451
On October 22, the normal high in Lander is 56°F and the normal low 30°F, and the chance of measurable rain or snow is 17%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Lander.
- Jan 33° 10°
- Feb 37° 13°
- Mar 49° 23°
- Apr 56° 30°
- May 66° 39°
- Jun 78° 48°
- Jul 88° 55°
- Aug 86° 54°
- Sep 75° 45°
- Oct 59° 32°
- Nov 44° 20°
- Dec 33° 10°
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 Lander each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 10°F. The most precipitation falls in May (2.68 in), the least in January (0.51 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 10°F | 21.3°F | 0.51 | 8.2 | 4 | <1 | 31 | 9 h 20 min |
| February | 37°F | 13°F | 25.0°F | 0.70 | 12.1 | 5 | <1 | 28 | 10 h 30 min |
| March | 49°F | 23°F | 36.0°F | 1.29 | 14.4 | 6 | <1 | 26 | 11 h 50 min |
| April | 56°F | 30°F | 43.2°F | 2.07 | 16.4 | 8 | <1 | 17 | 13 h 20 min |
| May | 66°F | 39°F | 52.8°F | 2.68 | 4.5 | 9 | <1 | 5 | 14 h 40 min |
| June | 78°F | 48°F | 62.8°F | 1.08 | 0.1 | 6 | 3 | <1 | 15 h 20 min |
| July | 88°F | 55°F | 71.5°F | 0.59 | 0.0 | 5 | 14 | <1 | 15 h |
| August | 86°F | 54°F | 69.8°F | 0.52 | 0.0 | 5 | 11 | <1 | 14 h |
| September | 75°F | 45°F | 59.6°F | 0.98 | 1.5 | 6 | 1 | 1 | 12 h 30 min |
| October | 59°F | 32°F | 45.4°F | 1.40 | 10.5 | 6 | <1 | 15 | 11 h 10 min |
| November | 44°F | 20°F | 32.1°F | 0.78 | 10.6 | 5 | <1 | 27 | 9 h 50 min |
| December | 33°F | 10°F | 21.6°F | 0.63 | 9.3 | 4 | <1 | 31 | 9 h |
| Year (annual) | 59°F | 32°F | 45.1°F | 13.23 | 87.6 | 69 | 30 | 180 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 0°C | −12°C | −5.9°C | 13 mm | 21 cm |
| February | 3°C | −10°C | −3.9°C | 18 mm | 31 cm |
| March | 9°C | −5°C | 2.2°C | 33 mm | 37 cm |
| April | 13°C | −1°C | 6.2°C | 53 mm | 42 cm |
| May | 19°C | 4°C | 11.6°C | 68 mm | 11 cm |
| June | 26°C | 9°C | 17.1°C | 27 mm | 0 cm |
| July | 31°C | 13°C | 21.9°C | 15 mm | 0 cm |
| August | 30°C | 12°C | 21.0°C | 13 mm | 0 cm |
| September | 24°C | 7°C | 15.3°C | 25 mm | 4 cm |
| October | 15°C | 0°C | 7.4°C | 36 mm | 27 cm |
| November | 7°C | −7°C | 0.1°C | 20 mm | 27 cm |
| December | 0°C | −12°C | −5.8°C | 16 mm | 24 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024021; 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 Lander?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, September has the fewest days with rain (6).
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 USW00024021.
When is the last frost in Lander?
In Lander, the last spring frost (32°F) comes after May 18 in half of years and after June 3 in one year in ten; the first autumn frost comes before September 27 in half of years and before September 13 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 3; 9 in 10 after May 4
- First autumn frost, half of years before
- September 271 year in 10 before September 13; 9 in 10 before October 10
NOAA puts the median frost-free season at 131 days, and the season without a hard freeze (28°F) at 153 days.
A hard freeze (28°F) comes after May 4 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Lander in zone 5a in ZIP code 82515, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Lander's NOAA station is in zone 5a: the coldest night of a typical year reaches −17°F (30 complete years).
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00024021; 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 in Lander?
In a normal year in Lander, 30 days a year reach 90°F, 180 nights fall to 32°F or colder and 69 days bring measurable precipitation.
- Days at 90°F or more
- 30a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 180a normal year
- Days that stay below freezing
- 50high of 32°F or less
- Days with 0.01 inch of precipitation
- 69a normal year
- Days with 1 inch of snow or more
- 22a normal year
The highest temperature in Lander's official record (kept by the National Weather Service since 1891) is 102°F, on July 27, 1935; the lowest is −40°F, on February 8, 1936.
The wettest calendar year on that record is 1957, with 21.89 in; the snowiest season is 1972–73, with 219.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024021; records: ACIS (NOAA Regional Climate Centers), NWS threaded record LNDthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Lander, and how clear are its skies?
The summer (June-August) dew point averages 39°F. The muggiest month is July, with an average dew point of 42°F; the driest air comes in December (10°F). June is the windiest month (7.4 mph on average), and June has the most clear or nearly clear hours (85%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 13°F | 62% | 50% | 4.7 mph | 74% | 15% |
| February | 14°F | 54% | 40% | 5.9 mph | 74% | 15% |
| March | 21°F | 47% | 32% | 7.3 mph | 66% | 19% |
| April | 28°F | 48% | 32% | 7.1 mph | 61% | 23% |
| May | 37°F | 47% | 31% | 7.3 mph | 69% | 16% |
| June | 39°F | 35% | 21% | 7.4 mph | 85% | 6% |
| July | 42°F | 35% | 21% | 6.8 mph | 83% | 6% |
| August | 36°F | 33% | 20% | 6.9 mph | 82% | 7% |
| September | 31°F | 44% | 28% | 5.9 mph | 75% | 12% |
| October | 22°F | 53% | 37% | 5.4 mph | 72% | 18% |
| November | 14°F | 61% | 47% | 5.0 mph | 74% | 15% |
| December | 10°F | 65% | 54% | 4.7 mph | 77% | 13% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024021. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Lander?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Lander, 4.8 kWh per square metre a day. July is the sunniest month (86%) and December the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 2.3 |
| February | 78% | 3.3 |
| March | 74% | 4.4 |
| April | 75% | 5.6 |
| May | 77% | 6.6 |
| June | 85% | 7.7 |
| July | 86% | 7.4 |
| August | 86% | 6.5 |
| September | 86% | 5.3 |
| October | 80% | 3.6 |
| November | 78% | 2.5 |
| 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 Lander need?
A normal year in Lander brings 7,711 heating degree days, 44% more than the median U.S. place (5,373), and 485 cooling degree days, 47% 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 2,237 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,355 | 0 |
| February | 1,121 | 0 |
| March | 899 | 0 |
| April | 653 | 0 |
| May | 385 | 5 |
| June | 124 | 59 |
| July | 14 | 214 |
| August | 25 | 174 |
| September | 195 | 33 |
| October | 607 | 1 |
| November | 987 | 0 |
| December | 1,347 | 0 |
| Year (annual) | 7,711 | 485 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024021. 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.
Has Lander been warmer than normal lately?
2024 averaged 47.8°F, 2.7°F above the 1991-2020 normal of 45.1°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 47.5°F | +2.4°F | 15.01 | 59.0 |
| 2022 | 45.2°F | +0.1°F | 13.92 | 74.0 |
| 2023 | 42.7°F | −2.4°F | 17.72 | 110.3 |
| 2024 | 47.8°F | +2.7°F | 9.23 | 50.3 |
Over 132 complete years from 1892 to 2025, the station's annual mean temperature rose at a fitted 2.3°F per century (+0.13°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024021; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Lander's climate compare?
Lander is warmer than 45 of the other 70 places with their own NOAA record in Wyoming, and wetter than 38. Across the 7,247 U.S. stations with normals, its annual mean of 45.1°F is warmer than 20%.
In the Köppen classification computed from these normals, Lander is Dfb: continental, no dry season, warm 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.
Which places near Lander share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- Ethete, WY1,438 people · 13 mi N
- Boulder Flats, WY470 people · 8 mi NW
- Hudson, WY436 people · 9 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.
What do Lander's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Lander. This page uses Lander Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Lander (11 mi SSE) USW00094078 | 10 mi S | 5,773 ft | 45.7°F | 13°F | 86°F | 16.0 | – | May 13 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Lander's climate
What is the coldest month in Lander?
January, with a normal high of 33°F and a normal low of 10°F. The warmest is July (88°F by day, 55°F at night).
Does it snow in Lander?
Yes: 88 inches in a normal year, falling on 35 days with 0.1 inch or more, the most in April (16.4 inches).
What is the rainiest month in Lander?
May, with 2.68 in of precipitation in a normal year; the driest is January with 0.51 in.
What plant hardiness zone is Lander in?
The USDA's 2023 map puts Lander in zone 5a in ZIP code 82515, the nearest ZIP area. By the same method at Lander's NOAA station, the coldest night of a typical year reaches −17°F (30 years, 1991-2020): zone 5a.
How late can frost come in Lander?
In half of years the last 32°F night comes after May 18; in one year in ten it comes after June 3. Waiting until June 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Lander in OctoberThis month day by day, its records and recent years
- Wyoming climateThe statewide normals and every place in the state
- Riverton, WY21 miles from this station, 44.5°F a year
- Atlantic City, WY22 miles from this station, 36.5°F a year
- South Pass City, WY24 miles from this station, 35.8°F a year
- Pavillion, WY30 miles from this station, 45.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made