Seminoe Rsvr Usbr, WY Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Seminoe Rsvr Usbr's primary NOAA station, SEMINOE RSVR USBR.
The climate verdict for Seminoe Rsvr Usbr
Dryness leads the climate profile for Seminoe Rsvr Usbr, Wyoming, with 13.2 inches of precipitation a year. NOAA records an annual average of 44°F. At 40/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 6% of scores.
- 44°F
- annual average temperature (NOAA normal)
- 40/100
- comfort score, above 6% of station-mapped location scores
- 13.2"
- precipitation, annual total
- 145 days
- frost-free growing season
Seminoe Rsvr Usbr: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00488074 · Seminoe Rsvr Usbr, WY 44°F mean · 13.2" 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 #1,029
- PHOTO-FINISH ≈ Colton
- PRCP-DRY 13.2"
- SWING-WIDE 48°F
- COMF-LOW 40/100
- LOAD-HEAT 8,032 HDD
- STN-1 USC00488074
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Colton, NY (+ 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.
- Seminoe Rsvr Us… (this station) 44°F
- Cold Peshtigo, WI 44°F
- Hot Colton, NY 44°F
- Near Cornell, MI 44°F
- Near Powder Rvr, WY 44°F
Seminoe Rsvr Usbr 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 · Seminoe Rsvr Usbr
Seminoe Rsvr Usbr: 19/100 · grade F
Seminoe Rsvr Usbr publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Seminoe Rsvr Usbr, not an official NOAA rating. Rankings still use Comfort Score 40/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 145 days/year | 22/100 · F |
| Precipitation balance | 13.2 in · 21.8 from 35 in | 22/100 · F |
| Normal heat + freeze calendar | 192 calendar days | 18/100 · F |
| Annual temperature balance | 43.9°F · 23.6° from 67.5°F | 16/100 · F |
Seminoe Rsvr Usbr · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Seminoe Rsvr Usbr is a continental Köppen climate: Dfb
Coldest-month mean 22.4°F and warmest-month mean 70.3°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
- 70.3°F
- Coldest month
- 22.4°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 Seminoe Rsvr Usbr sits across the climate record
Three NOAA fields for Seminoe Rsvr Usbr's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 85%
- Among 6,861 stations, Seminoe Rsvr Usbr sits in the cooler third of annual means.
- Annual precipitation
- Drier than 87%
- Seminoe Rsvr Usbr's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 72%
- Warmest-to-coldest month gap for Seminoe Rsvr Usbr is large versus 6,861 complete station-years.
How Seminoe Rsvr Usbr compares across U.S. station-mapped locations
Seminoe Rsvr Usbr's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
40 6th percentile score exceeds 6% 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 31°F (0°C) | 14°F (-10°C) | 22°F (-5°C) | 0.5" | 30.7 | 0.0 |
| February | 34°F (1°C) | 15°F (-10°C) | 25°F (-4°C) | 0.7" | 26.8 | 0.0 |
| March | 43°F (6°C) | 23°F (-5°C) | 33°F (1°C) | 1.3" | 24.2 | 0.0 |
| April | 52°F (11°C) | 30°F (-1°C) | 41°F (5°C) | 1.8" | 18.9 | 0.0 |
| May | 62°F (17°C) | 39°F (4°C) | 50°F (10°C) | 2.1" | 5.7 | 0.0 |
| June | 75°F (24°C) | 49°F (9°C) | 62°F (17°C) | 1.4" | 0.0 | 0.8 |
| July | 84°F (29°C) | 57°F (14°C) | 70°F (21°C) | 0.8" | 0.0 | 4.8 |
| August | 81°F (27°C) | 54°F (12°C) | 68°F (20°C) | 0.9" | 0.0 | 1.8 |
| September | 70°F (21°C) | 45°F (7°C) | 58°F (14°C) | 1.0" | 1.4 | 0.3 |
| October | 55°F (13°C) | 33°F (1°C) | 44°F (7°C) | 1.4" | 13.3 | 0.0 |
| November | 41°F (5°C) | 23°F (-5°C) | 32°F (0°C) | 0.7" | 22.8 | 0.0 |
| December | 31°F (-1°C) | 14°F (-10°C) | 23°F (-5°C) | 0.4" | 29.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 23, short of 90°F on every date, while 192 dates carry a normal low at or below freezing, the coldest 13°F near December 25.
The freezing stretch
The normal low stays at or below 32°F into April 27, then returns to freezing around October 19, covering 192 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.
The widest day
July 4 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Seminoe Rsvr Usbr.
Where Seminoe Rsvr Usbr Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 192 nights a year, more than most ranked stations.
A drier-than-most normal water year — around 13 inches, below what four out of five ranked stations collect.
Seminoe Rsvr Usbr earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Seminoe Rsvr Usbr spreads its precipitation across the year
Neither half of the year dominates here: June through August take 24% of the annual total and December through February 12%, with neither reaching the 35% that would mark a distinct wet season. Seminoe Rsvr Usbr has no dry season to plan around, though it does carry a wide 47.9°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 2.1" and December 0.4". The three wettest months together take 41% 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.
Frost Dates & Growing Season
First Fall Freeze
October 4
50% probability date
Last Spring Freeze
May 12
50% probability date
Growing Season
145 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,032
Higher = more heating needed
Cooling Degree Days
362
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Seminoe Rsvr Usbr 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).
- Bethel, ME 44°F · 0.0°F off
- Carter, MT 44°F · 0.0°F off
- Colton, NY 44°F · 0.0°F off
- Del Norte, CO 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (13.2" here), excluding temperature-peer places.
- Harlowton, MT 13.2" · 0.0" off
- Scipio, UT 13.2" · 0.0" off
- Hatch, UT 13.2" · 0.0" off
- Fort Benton, MT 13.2" · 0.0" off
Scarce-water calendar
Where Seminoe Rsvr Usbr's limited precipitation lands
heating led · dry · mid swing
Seminoe Rsvr Usbr's energy balance leans toward cold weather: 8,032 annual heating degree days against 362 for cooling. Its 47.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 145 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.
July and January mark the typical warm and cold ends of the calendar in Seminoe Rsvr Usbr's middle-range seasonal profile. The measured spread is 47.9°F. The annual average is 44°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Seminoe Rsvr Usbr's cold-season load does not imply a wet climate. Annual precipitation is 13.2 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Seminoe Rsvr Usbr wettest normal
May
May concentrates the scarce annual total (13.2 inches).
Seminoe Rsvr Usbr driest normal
December
December is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Seminoe Rsvr Usbr's climate
How dry is Seminoe Rsvr Usbr? ▼
How cold does Seminoe Rsvr Usbr get in winter? ▼
How much energy does heating and cooling require in Seminoe Rsvr Usbr? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Seminoe Rsvr Usbr's primary station: SEMINOE RSVR USBR (USC00488074). 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 Seminoe Rsvr Usbr; 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 Seminoe Rsvr Usbr 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.