La Grange, WY Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from La Grange's primary NOAA station, LA GRANGE.
The climate verdict for La Grange
Dryness leads the climate profile for La Grange, Wyoming, with 16.0 inches of precipitation a year. NOAA records an annual average of 50°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 50°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, above 10% of station-mapped location scores
- 16.0"
- annual precipitation · 53" snow
- 140 days
- frost-free growing season
La Grange: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00485260 · La Grange, WY 50°F mean · 16.0" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-MID #2,744
- PHOTO-FINISH ≈ Fields
- PRCP-DRY 16.0"
- SWING-MID 43°F
- COMF-LOW 44/100
- LOAD-HEAT 6,104 HDD
- STN-1 USC00485260
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Fields, OR (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every WY station list.
- La Grange (this station) 50°F
- Cold Tionesta 2 SE L…, PA 50°F
- Hot Longmont, CO 50°F
- Near Fields, OR 50°F
- Near Nws Boston/nort…, MA 50°F
La Grange sits in Wyoming, the #5 coldest U.S. state at 43.3°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · La Grange
La Grange: 26/100 · grade F
La Grange publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for La Grange, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 50.0°F · 17.5° from 67.5°F | 40/100 · D |
| Precipitation balance | 16.0 in · 19.0 from 35 in | 32/100 · F |
| Snowfall burden | 53.4 inches/year | 19/100 · F |
| Frost-free season | 140 days/year | 18/100 · F |
| Normal heat + freeze calendar | 202 calendar days | 13/100 · F |
La Grange · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
La Grange's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 73.3°F
- Coldest month
- 30.3°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where La Grange sits across the climate record
Three NOAA fields for La Grange's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 40th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 80%
- La Grange's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 49th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How La Grange compares across U.S. station-mapped locations
La Grange's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 43°F (6°C) | 19°F (-7°C) | 31°F (-1°C) | 0.4" | 6.2" | 28.5 | 0.0 |
| February | 45°F (7°C) | 19°F (-7°C) | 32°F (0°C) | 0.7" | 6.6" | 25.6 | 0.0 |
| March | 55°F (13°C) | 26°F (-3°C) | 41°F (5°C) | 1.1" | 10.4" | 25.3 | 0.0 |
| April | 63°F (17°C) | 33°F (0°C) | 48°F (9°C) | 1.9" | 7.6" | 15.1 | 0.0 |
| May | 72°F (22°C) | 41°F (5°C) | 57°F (14°C) | 2.2" | 0.3" | 3.4 | 1.1 |
| June | 83°F (28°C) | 50°F (10°C) | 67°F (19°C) | 2.1" | 0.0" | 0.1 | 6.3 |
| July | 90°F (32°C) | 57°F (14°C) | 73°F (23°C) | 1.6" | 0.0" | 0.0 | 17.5 |
| August | 88°F (31°C) | 55°F (13°C) | 72°F (22°C) | 1.9" | 0.0" | 0.0 | 13.4 |
| September | 79°F (26°C) | 46°F (8°C) | 63°F (17°C) | 1.5" | 0.3" | 2.4 | 2.5 |
| October | 65°F (18°C) | 34°F (1°C) | 49°F (10°C) | 1.4" | 5.0" | 13.6 | 0.1 |
| November | 52°F (11°C) | 25°F (-4°C) | 39°F (4°C) | 0.6" | 6.4" | 24.8 | 0.0 |
| December | 42°F (6°C) | 18°F (-8°C) | 30°F (-1°C) | 0.8" | 10.6" | 29.0 | 0.0 |
The year, day by day
La Grange works both ends of the calendar. Normal highs climb to 91°F by July 20 and hold at or above 90°F on 25 dates, then normal lows drop to freezing or below on 177 dates, bottoming at 18°F around December 17.
When the heat sits
Normal highs reach 90°F from July 11 through August 4, covering 25 dates. The broader mild season, normal highs of 70°F or more, runs May 12 to October 4.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into April 13, then returns to freezing around October 20, covering 177 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 31, when 36% of years recorded at least a hundredth of an inch. The driest is January 18 at 13%. Summed across the calendar, that is about 79 wet dates a year.
The widest day
July 9 carries the biggest normal gap between afternoon and dawn, 34°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for La Grange.
Where La Grange Stands Nationally
Daily temperature swings run wider than most of the country, peaking near 34°F between the normal high and low.
La Grange earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 6.2"
4.2 days with precipitation
Snow: 6.6"
4.9 days with precipitation
Snow: 10.4"
6.0 days with precipitation
Snow: 7.6"
8.2 days with precipitation
Snow: 0.3"
10.2 days with precipitation
9.8 days with precipitation
7.5 days with precipitation
7.6 days with precipitation
Snow: 0.3"
5.7 days with precipitation
Snow: 5.0"
5.9 days with precipitation
Snow: 6.4"
4.5 days with precipitation
Snow: 10.6"
5.1 days with precipitation
La Grange runs a summer-peaked wet season
35% of La Grange's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is May at 2.2", on a 43°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: May, June, August, taking 39% of the annual total between them.
- Driest month: January at 0.4".
- Winter share: 11% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
How La Grange's precipitation splits across the calendar
About 80 days a year record measurable precipitation here, carrying 16.0" between them, or roughly 0.20 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to La Grange
La Grange averages 53.4 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 21 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 53.4 inches of depth.
- Days recording measurable snow: about 21 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 33% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 14
50% probability date
Growing Season
140 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,104
Higher = more heating needed
Cooling Degree Days
672
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WY closest to La Grange on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (50°F here).
- Albia, IA 50°F · 0.0°F off
- Aledo, IL 50°F · 0.0°F off
- Centerburg, OH 50°F · 0.0°F off
- Circleville, UT 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (16.0" here), excluding temperature-peer places.
- Forsyth, MT 16.0" · 0.0" off
- Fremont, CA 15.9" · 0.0" off
- Wiseman, AK 15.9" · 0.0" off
- Bettles, AK 16.0" · 0.0" off
Snow and freeze rhythm
When cold and snow define La Grange
heating led · dry · mid swing
La Grange's energy balance leans toward cold weather: 6,104 annual heating degree days against 672 for cooling. Its 43.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 140 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. La Grange coldest normal
December
The monthly mean of 30°F (-1°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. La Grange typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. La Grange snow peak
December
La Grange averages 53.4 inches of snow a year, with December the snowiest month on the normals.
Questions about La Grange's climate
How much snow does La Grange get? ▼
How many days above 90°F does La Grange get? ▼
How much energy does heating and cooling require in La Grange? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from La Grange's primary station: LA GRANGE (USC00485260). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for La Grange; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for La Grange comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.