Devils Twr, WY Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Devils Twr's primary NOAA station, DEVILS TWR #2.
The climate verdict for Devils Twr
Dryness leads the climate profile for Devils Twr, Wyoming, with 19.1 inches of precipitation a year. NOAA records an annual average of 44°F. At 39/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 4% of scores.
- 44°F
- average temperature, NOAA 1991-2020 normal
- 39/100
- comfort score, above 4% of station-mapped location scores
- 19.1"
- annual precipitation · 49" snow
- 120 days
- frost-free growing season
Devils Twr: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00482466 · Devils Twr, WY 44°F mean · 19.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 44°F
- RANK-COOL #1,166
- PHOTO-FINISH ≈ Slinger Wwtp
- PRCP-DRY 19.1"
- SWING-WIDE 49°F
- COMF-LOW 39/100
- LOAD-HEAT 7,912 HDD
- STN-1 USC00482466
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Slinger Wwtp, WI (+ 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.
- Hot Moorcroft, WY 45°F
- Near Clintonville, WI 45°F
- Devils Twr (this station) 44°F
- Cold Jim Falls, WI 44°F
- Near Slinger Wwtp, WI 44°F
Devils Twr 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 · Devils Twr
Devils Twr: 21/100 · grade F
Devils Twr publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Devils Twr, not an official NOAA rating. Rankings still use Comfort Score 39/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 19.1 in · 15.9 from 35 in | 44/100 · D |
| Snowfall burden | 48.8 inches/year | 22/100 · F |
| Annual temperature balance | 44.4°F · 23.1° from 67.5°F | 18/100 · F |
| Normal heat + freeze calendar | 200 calendar days | 14/100 · F |
| Frost-free season | 120 days/year | 7/100 · F |
Devils Twr · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Devils Twr is a continental Köppen climate: Dfb
Coldest-month mean 21.0°F and warmest-month mean 70.0°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 70.0°F
- Coldest month
- 21.0°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 Devils Twr sits across the climate record
Three NOAA fields for Devils Twr's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 83%
- Among 6,861 stations, Devils Twr sits in the cooler third of annual means.
- Annual precipitation
- Drier than 74%
- Devils Twr's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 78%
- Warmest-to-coldest month gap for Devils Twr is large versus 6,861 complete station-years.
How Devils Twr compares across U.S. station-mapped locations
Devils Twr's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
39 4th percentile score exceeds 4% 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%). This entry sits in this band.
- 40–50: 1,113 station-mapped locations (18%). Above this entry.
- 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
Devils Twr's measured station temperature trend
MethodologyAcross 38 complete annual observations from 1960 to 2021, DEVILS TWR #2 warmed at a fitted rate of 0.35°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Devils Twr primary station fitted change +0.35 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 34°F (1°C) | 8°F (-13°C) | 21°F (-6°C) | 0.7" | 8.8" | 30.9 | 0.0 |
| February | 37°F (3°C) | 11°F (-12°C) | 24°F (-5°C) | 0.8" | 9.3" | 27.6 | 0.0 |
| March | 47°F (9°C) | 21°F (-6°C) | 34°F (1°C) | 1.1" | 7.3" | 28.4 | 0.0 |
| April | 57°F (14°C) | 29°F (-2°C) | 43°F (6°C) | 2.0" | 5.3" | 21.0 | 0.0 |
| May | 66°F (19°C) | 39°F (4°C) | 52°F (11°C) | 2.9" | 0.4" | 8.7 | 0.2 |
| June | 76°F (25°C) | 49°F (9°C) | 63°F (17°C) | 3.2" | 0.0" | 0.3 | 1.8 |
| July | 85°F (30°C) | 55°F (13°C) | 70°F (21°C) | 2.1" | 0.0" | 0.0 | 10.1 |
| August | 85°F (29°C) | 52°F (11°C) | 69°F (20°C) | 1.9" | 0.0" | 0.1 | 9.6 |
| September | 75°F (24°C) | 42°F (6°C) | 58°F (15°C) | 1.3" | 0.0" | 4.8 | 3.2 |
| October | 60°F (15°C) | 30°F (-1°C) | 45°F (7°C) | 1.5" | 1.8" | 19.8 | 0.1 |
| November | 45°F (7°C) | 19°F (-7°C) | 32°F (0°C) | 0.8" | 6.3" | 28.3 | 0.0 |
| December | 35°F (2°C) | 9°F (-13°C) | 22°F (-5°C) | 0.7" | 9.6" | 30.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 87°F around July 27, short of 90°F on every date, while 200 dates carry a normal low at or below freezing, the coldest 7°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 28, then returns to freezing around October 12, covering 200 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 40% of years recorded at least a hundredth of an inch. The driest is November 16 at 19%. Summed across the calendar, that is about 95 wet dates a year.
The widest day
September 4 carries the biggest normal gap between afternoon and dawn, 33°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Devils Twr.
Where Devils Twr Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 200 nights a year, placing this among the most frost-prone tenth of ranked stations.
Daily temperature swings run wider than most of the country, peaking near 33°F between the normal high and low.
Devils Twr earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 8.8"
7.8 days with precipitation
Snow: 9.3"
8.0 days with precipitation
Snow: 7.3"
6.9 days with precipitation
Snow: 5.3"
9.0 days with precipitation
Snow: 0.4"
11.4 days with precipitation
10.9 days with precipitation
8.3 days with precipitation
6.3 days with precipitation
6.5 days with precipitation
Snow: 1.8"
7.2 days with precipitation
Snow: 6.3"
5.6 days with precipitation
Snow: 9.6"
6.3 days with precipitation
Devils Twr runs a summer-peaked wet season
38% of Devils Twr'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 June at 3.2", on a wide 49°F gap between its warmest and coldest month. 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: June, May, July, taking 43% of the annual total between them.
- Driest month: December at 0.7".
- 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 Devils Twr's precipitation splits across the calendar
About 94 days a year record measurable precipitation here, carrying 19.1" 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 Devils Twr
Devils Twr averages 48.8 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 32 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: 48.8 inches of depth.
- Days recording measurable snow: about 32 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 26% 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
September 20
50% probability date
Last Spring Freeze
May 23
50% probability date
Growing Season
120 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,912
Higher = more heating needed
Cooling Degree Days
439
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Devils Twr 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 (44°F here).
- Baker, MT 44°F · 0.0°F off
- Bellemont, AZ 44°F · 0.0°F off
- Bridgeport, CA 44°F · 0.0°F off
- Challis, ID 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (19.1" here), excluding temperature-peer places.
- Goodland, KS 19.1" · 0.0" off
- Elliston, MT 19.1" · 0.0" off
- Hooker, OK 19.1" · 0.0" off
- Sunriver, OR 19.1" · 0.0" off
Snow and freeze rhythm
When cold and snow define Devils Twr
heating led · dry · mid swing
Devils Twr's energy balance leans toward cold weather: 7,912 annual heating degree days against 439 for cooling. Its 49.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 120 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. Devils Twr coldest normal
January
Averaging 21°F (-6°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Devils Twr typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Devils Twr snow peak
December
Devils Twr averages 48.8 inches of snow a year, with December the snowiest month on the normals.
Questions about Devils Twr's climate
How much snow does Devils Twr get? ▼
How cold does Devils Twr get in winter? ▼
How much energy does heating and cooling require in Devils Twr? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Devils Twr's primary station: DEVILS TWR #2 (USC00482466). 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 Devils Twr; 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 Devils Twr 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.