Deaver, WY Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Deaver's primary NOAA station, DEAVER.
The climate verdict for Deaver
Dryness leads the climate profile for Deaver, Wyoming, with 5.5 inches of precipitation a year. NOAA records an annual average of 46°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.
- 46°F
- average temperature, NOAA 1991-2020 normal
- 44/100
- comfort score, above 10% of station-mapped location scores
- 5.5"
- annual precipitation · 12" snow
- 148 days
- frost-free growing season
Deaver: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00482415 · Deaver, WY 46°F mean · 5.5" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,578
- PHOTO-FINISH ≈ Mizpah
- PRCP-ARID 5.5"
- SWING-WIDE 55°F
- COMF-LOW 44/100
- LOAD-HEAT 7,504 HDD
- STN-1 USC00482415
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Mizpah, MT (+ 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.
- Deaver (this station) 46°F
- Cold Elkader, IA 46°F
- Hot Mizpah, MT 46°F
- Near Eau Claire, WI 46°F
- Near Postville, IA 46°F
Deaver 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 · Deaver
Deaver: 20/100 · grade F
Deaver publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Deaver, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 12.2 inches/year | 60/100 · C |
| Annual temperature balance | 46.1°F · 21.4° from 67.5°F | 24/100 · F |
| Frost-free season | 148 days/year | 24/100 · F |
| Normal heat + freeze calendar | 207 calendar days | 10/100 · F |
| Precipitation balance | 5.5 in · 29.5 from 35 in | 2/100 · F |
Deaver · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Deaver's normals sit in a dry climate class: BWk
Annual precipitation falls well below the aridity threshold for this temperature regime, so the normals classify as cold desert (BWk). Class BWk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold desert.
- Köppen code
- BWk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 73.5°F
- Coldest month
- 18.6°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 Deaver sits across the climate record
Three NOAA fields for Deaver's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 77%
- Among 6,861 stations, Deaver sits in the cooler third of annual means.
- Annual precipitation
- Drier than 99%
- Deaver's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 92%
- Warmest-to-coldest month gap for Deaver is large versus 6,861 complete station-years.
How Deaver compares across U.S. station-mapped locations
Deaver'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
Deaver's measured station temperature trend
MethodologyAcross 61 complete annual observations from 1916 to 2025, DEAVER warmed at a fitted rate of 0.20°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Deaver primary station fitted change +0.20 °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 | 31°F (-1°C) | 7°F (-14°C) | 19°F (-7°C) | 0.1" | 3.2" | 31.0 | 0.0 |
| February | 37°F (3°C) | 12°F (-11°C) | 24°F (-4°C) | 0.1" | 2.5" | 27.7 | 0.0 |
| March | 51°F (10°C) | 23°F (-5°C) | 37°F (3°C) | 0.2" | 1.3" | 27.2 | 0.0 |
| April | 60°F (16°C) | 32°F (0°C) | 46°F (8°C) | 0.4" | 0.8" | 16.8 | 0.0 |
| May | 70°F (21°C) | 43°F (6°C) | 56°F (13°C) | 1.1" | 0.1" | 4.4 | 0.6 |
| June | 80°F (27°C) | 51°F (11°C) | 66°F (19°C) | 1.1" | 0.0" | 0.3 | 4.5 |
| July | 90°F (32°C) | 57°F (14°C) | 74°F (23°C) | 0.6" | 0.0" | 0.0 | 17.3 |
| August | 88°F (31°C) | 55°F (13°C) | 71°F (22°C) | 0.3" | 0.0" | 0.0 | 15.5 |
| September | 77°F (25°C) | 44°F (7°C) | 61°F (16°C) | 0.6" | 0.0" | 2.5 | 3.1 |
| October | 61°F (16°C) | 33°F (0°C) | 47°F (8°C) | 0.6" | 0.6" | 18.2 | 0.0 |
| November | 45°F (7°C) | 20°F (-7°C) | 33°F (0°C) | 0.2" | 1.4" | 28.0 | 0.0 |
| December | 33°F (0°C) | 9°F (-13°C) | 21°F (-6°C) | 0.1" | 2.3" | 30.9 | 0.0 |
The year, day by day
Deaver works both ends of the calendar. Normal highs climb to 91°F by July 24 and hold at or above 90°F on 25 dates, then normal lows drop to freezing or below on 182 dates, bottoming at 6°F around January 5.
When the heat sits
Normal highs reach 90°F from July 15 through August 8, covering 25 dates. The broader mild season, normal highs of 70°F or more, runs May 17 to September 29.
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 16, then returns to freezing around October 18, covering 182 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 June 7, when 20% of years recorded at least a hundredth of an inch. The driest is November 22 at 5%. Summed across the calendar, that is about 39 wet dates a year.
The widest day
August 31 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 Deaver.
Where Deaver Stands Nationally
Aridity defines the water calendar: about 6 inches in a normal year lands this among the driest tenth of ranked stations.
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 182 nights a year, more than most ranked stations.
Deaver 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: 3.2"
2.3 days with precipitation
Snow: 2.5"
2.4 days with precipitation
Snow: 1.3"
1.8 days with precipitation
Snow: 0.8"
3.8 days with precipitation
Snow: 0.1"
5.4 days with precipitation
5.6 days with precipitation
3.6 days with precipitation
3.4 days with precipitation
3.2 days with precipitation
Snow: 0.6"
3.3 days with precipitation
Snow: 1.4"
1.7 days with precipitation
Snow: 2.3"
2.0 days with precipitation
Deaver runs a summer-peaked wet season
36% of Deaver'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 1.1", on a wide 54.9°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: May, June, September, taking 50% of the annual total between them.
- Driest month: January at 0.1".
- Winter share: 7% 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.
Deaver is dry, and what does fall arrives gently
Only about 39 days a year record measurable precipitation here, 11% of the calendar, and they carry 5.5" between them. At roughly 0.14 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is June at about 6 wet days; the driest is November at about 2.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Deaver
Deaver averages 12.2 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 8 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: 12.2 inches of depth.
- Days recording measurable snow: about 8 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 22% 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 6
50% probability date
Growing Season
148 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,504
Higher = more heating needed
Cooling Degree Days
646
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Deaver 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 (46°F here).
- Burlington, WI 46°F · 0.0°F off
- Colstrip, MT 46°F · 0.0°F off
- Cottonwood, SD 46°F · 0.0°F off
- Dushore, PA 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (5.5" here), excluding temperature-peer places.
- Mina, NV 5.6" · 0.1" off
- Victorville, CA 5.6" · 0.1" off
- Independence, CA 5.4" · 0.1" off
- Bullhead City, AZ 5.4" · 0.1" off
Snow and freeze rhythm
When cold and snow define Deaver
heating led · dry · mid swing
Deaver's energy balance leans toward cold weather: 7,504 annual heating degree days against 646 for cooling. Its 54.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 148 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. Deaver coldest normal
January
Averaging 19°F (-7°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Deaver typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Deaver snow peak
January
Deaver averages 12.2 inches of snow a year, with January the snowiest month on the normals.
Questions about Deaver's climate
How much snow does Deaver get? ▼
How many days above 90°F does Deaver get? ▼
How much energy does heating and cooling require in Deaver? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Deaver's primary station: DEAVER (USC00482415). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 5619530). Match rule for Deaver: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Deaver 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.