Medicine Bow, 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 Medicine Bow's primary NOAA station, MEDICINE BOW.
The climate verdict for Medicine Bow
Dryness leads the climate profile for Medicine Bow, Wyoming, with 11.2 inches of precipitation a year. NOAA records an annual average of 42°F. At 34/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 2% of scores.
- 42°F
- annual average temperature (NOAA normal)
- 34/100
- comfort score, above 2% of station-mapped location scores
- 11.2"
- annual precipitation · 52" snow
- 99 days
- growing season, frost-free days
Medicine Bow: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00486120 · Medicine Bow, WY 42°F mean · 11.2" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 42°F
- RANK-COOL #617
- PHOTO-FINISH ≈ Mackay Lost Rvr…
- PRCP-ARID 11.2"
- SWING-WIDE 46°F
- COMF-LOW 34/100
- LOAD-HEAT 8,454 HDD
- STN-1 USC00486120
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Mackay Lost Rvr Ranger Station, ID (+ 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.
- Medicine Bow (this station) 42°F
- Cold White Sulphur S…, MT 42°F
- Hot Wamsutter, WY 42°F
- Near Mackay Lost Rvr…, ID 42°F
- Near Pactola Dam, SD 42°F
Medicine Bow 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 · Medicine Bow
Medicine Bow: 9/100 · grade F
Medicine Bow publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Medicine Bow, not an official NOAA rating. Rankings still use Comfort Score 34/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 51.7 inches/year | 20/100 · F |
| Precipitation balance | 11.2 in · 23.8 from 35 in | 16/100 · F |
| Annual temperature balance | 42.2°F · 25.3° from 67.5°F | 10/100 · F |
| Normal heat + freeze calendar | 228 calendar days | 2/100 · F |
| Frost-free season | 99 days/year | 0/100 · F |
Medicine Bow · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Medicine Bow is a continental Köppen climate: Dfb
Coldest-month mean 20.8°F and warmest-month mean 66.8°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
- 66.8°F
- Coldest month
- 20.8°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 Medicine Bow sits across the climate record
Three NOAA fields for Medicine Bow's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 91%
- Among 6,861 stations, Medicine Bow sits in the cooler third of annual means.
- Annual precipitation
- Drier than 91%
- Medicine Bow's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 64th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Medicine Bow compares across U.S. station-mapped locations
Medicine Bow's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
34 2nd percentile score exceeds 2% 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
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 (0°C) | 10°F (-12°C) | 21°F (-6°C) | 0.4" | 6.5" | 30.2 | 0.0 |
| February | 35°F (2°C) | 12°F (-11°C) | 23°F (-5°C) | 0.6" | 7.9" | 27.2 | 0.0 |
| March | 46°F (8°C) | 18°F (-8°C) | 32°F (0°C) | 0.7" | 7.6" | 29.2 | 0.0 |
| April | 55°F (13°C) | 25°F (-4°C) | 40°F (4°C) | 1.4" | 7.3" | 23.4 | 0.0 |
| May | 65°F (18°C) | 33°F (1°C) | 49°F (10°C) | 1.7" | 2.4" | 11.0 | 0.0 |
| June | 77°F (25°C) | 43°F (6°C) | 60°F (16°C) | 1.4" | 0.0" | 0.8 | 0.9 |
| July | 85°F (30°C) | 48°F (9°C) | 67°F (19°C) | 1.1" | 0.0" | 0.3 | 6.1 |
| August | 83°F (28°C) | 46°F (8°C) | 64°F (18°C) | 0.8" | 0.0" | 0.2 | 2.3 |
| September | 74°F (23°C) | 36°F (2°C) | 55°F (13°C) | 1.0" | 1.2" | 8.5 | 0.2 |
| October | 59°F (15°C) | 27°F (-3°C) | 43°F (6°C) | 1.0" | 5.5" | 20.7 | 0.0 |
| November | 43°F (6°C) | 18°F (-8°C) | 30°F (-1°C) | 0.6" | 6.5" | 27.6 | 0.0 |
| December | 33°F (0°C) | 11°F (-12°C) | 22°F (-6°C) | 0.5" | 6.8" | 30.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 21, short of 90°F on every date, while 228 dates carry a normal low at or below freezing, the coldest 10°F near December 22.
The freezing stretch
The normal low stays at or below 32°F into May 12, then returns to freezing around September 28, covering 228 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 20, when 32% of years recorded at least a hundredth of an inch. The driest is January 14 at 19%. Summed across the calendar, that is about 85 wet dates a year.
The widest day
September 10 carries the biggest normal gap between afternoon and dawn, 38°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Medicine Bow.
Where Medicine Bow Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 228 nights a year, placing this among the most frost-prone tenth of ranked stations.
Aridity defines the water calendar: about 11 inches in a normal year lands this among the driest tenth of ranked stations.
Medicine Bow 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: 6.5"
6.2 days with precipitation
Snow: 7.9"
6.1 days with precipitation
Snow: 7.6"
5.8 days with precipitation
Snow: 7.3"
8.1 days with precipitation
Snow: 2.4"
9.8 days with precipitation
7.6 days with precipitation
7.0 days with precipitation
7.5 days with precipitation
Snow: 1.2"
6.8 days with precipitation
Snow: 5.5"
6.8 days with precipitation
Snow: 6.5"
6.2 days with precipitation
Snow: 6.8"
6.6 days with precipitation
Medicine Bow spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 14%, with neither reaching the 35% that would mark a distinct wet season. Medicine Bow has no dry season to plan around, though it does carry a wide 46°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 1.7" and January 0.4". The three wettest months together take 40% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Medicine Bow is dry, and what does fall arrives gently
Only about 85 days a year record measurable precipitation here, 23% of the calendar, and they carry 11.2" between them. At roughly 0.13 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 May at about 10 wet days; the driest is March at about 6.
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 Medicine Bow
Medicine Bow averages 51.7 inches of snowfall a year, with February 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: 51.7 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 46% 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 8
50% probability date
Last Spring Freeze
June 1
50% probability date
Growing Season
99 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,454
Higher = more heating needed
Cooling Degree Days
159
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Medicine Bow 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 (42°F here).
- Altamont, UT 42°F · 0.0°F off
- Carson, ND 42°F · 0.0°F off
- Chama, NM 42°F · 0.0°F off
- Driggs, ID 42°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (11.2" here), excluding temperature-peer places.
- Madras, OR 11.2" · 0.0" off
- Ordway, CO 11.2" · 0.0" off
- Dinosaur, CO 11.2" · 0.0" off
- Madera, CA 11.3" · 0.1" off
Snow and freeze rhythm
When cold and snow define Medicine Bow
heating led · dry · mid swing
Medicine Bow's energy balance leans toward cold weather: 8,454 annual heating degree days against 159 for cooling. Its 46.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 99 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. Medicine Bow coldest normal
January
Averaging 21°F (-6°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Medicine Bow typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Medicine Bow snow peak
February
Medicine Bow averages 51.7 inches of snow a year, with February the snowiest month on the normals.
Questions about Medicine Bow's climate
How much snow does Medicine Bow get? ▼
How cold does Medicine Bow get in winter? ▼
How much energy does heating and cooling require in Medicine Bow? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Medicine Bow's primary station: MEDICINE BOW (USC00486120). 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 5651575). Match rule for Medicine Bow: 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 Medicine Bow 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.