Centennial, WY Climate: Temperature by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Centennial's primary NOAA station, CENTENNIAL 1NE.
The climate verdict for Centennial
Centennial, Wyoming has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 41°F. July is the warmest month at 62°F and January the coldest at 23°F.
- 41°F
- yearly average temperature, NOAA normal
- 109 days
- growing season, frost-free days
Centennial: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00481610 · Centennial, WY 41°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 41°F
- RANK-COOL #412
- PHOTO-FINISH ≈ Lewistown
- PRCP-UNK Rain n/a
- SWING-MID 39°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 8,903 HDD
- STN-1 USC00481610
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Lewistown, 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.
- Centennial (this station) 41°F
- Cold Dubois, WY 41°F
- Hot Wilsall, MT 41°F
- Near Lewistown, MT 41°F
- Near Seneca, OR 41°F
Centennial 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 · Centennial
Centennial: 4/100 · grade F
Centennial publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Centennial, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 40.6°F · 26.9° from 67.5°F | 6/100 · F |
| Normal heat + freeze calendar | 226 calendar days | 3/100 · F |
| Frost-free season | 109 days/year | 2/100 · F |
Centennial · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Centennial sits across the climate record
Available NOAA 1991–2020 fields for Centennial are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 94%
- Among 6,861 stations, Centennial sits in the cooler third of annual means.
- Seasonal temperature swing
- 32nd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 34°F (1°C) | 12°F (-11°C) | 23°F (-5°C) | N/A | 30.7 | 0.0 |
| February | 35°F (2°C) | 13°F (-11°C) | 24°F (-5°C) | N/A | 27.6 | 0.0 |
| March | 43°F (6°C) | 18°F (-8°C) | 31°F (-1°C) | N/A | 30.4 | 0.0 |
| April | 50°F (10°C) | 24°F (-5°C) | 37°F (3°C) | N/A | 26.5 | 0.0 |
| May | 61°F (16°C) | 32°F (0°C) | 46°F (8°C) | N/A | 15.8 | 0.0 |
| June | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | N/A | 4.0 | 0.0 |
| July | 77°F (25°C) | 48°F (9°C) | 62°F (17°C) | N/A | 0.2 | 0.0 |
| August | 75°F (24°C) | 46°F (8°C) | 60°F (16°C) | N/A | 0.1 | 0.0 |
| September | 68°F (20°C) | 39°F (4°C) | 53°F (12°C) | N/A | 7.8 | 0.0 |
| October | 56°F (13°C) | 28°F (-2°C) | 42°F (5°C) | N/A | 23.2 | 0.0 |
| November | 43°F (6°C) | 18°F (-8°C) | 30°F (-1°C) | N/A | 28.6 | 0.0 |
| December | 34°F (1°C) | 13°F (-11°C) | 23°F (-5°C) | N/A | 30.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 77°F around July 20, short of 90°F on every date, while 226 dates carry a normal low at or below freezing, the coldest 12°F near February 3.
The freezing stretch
The normal low stays at or below 32°F into May 17, then returns to freezing around October 5, covering 226 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
June 6 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Centennial.
Where Centennial Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 226 nights a year, placing this among the most frost-prone tenth of ranked stations.
Centennial 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
Frost Dates & Growing Season
First Fall Freeze
September 19
50% probability date
Last Spring Freeze
June 2
50% probability date
Growing Season
109 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,903
Higher = more heating needed
Cooling Degree Days
41
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WY closest to Centennial 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 (41°F here).
- Aitkin, MN 41°F · 0.0°F off
- Aspen, CO 41°F · 0.0°F off
- Chatham, MI 41°F · 0.0°F off
- Drummond, WI 41°F · 0.0°F off
Data-derived climate profile
How Centennial's climate pattern fits together
heating led · mid swing
Centennial's energy balance leans toward cold weather: 8,903 annual heating degree days against 41 for cooling. Its 39.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 109 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 Centennial's middle-range seasonal profile. The measured spread is 39.2°F. The annual average is 41°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Centennial's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Centennial's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Centennial, not an official NOAA class or a year-ahead forecast.
Questions about Centennial's climate
How cold does Centennial get in winter? ▼
How much energy does heating and cooling require in Centennial? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Centennial's primary station: CENTENNIAL 1NE (USC00481610). 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 a census-designated place (GEOID 5613440), not an incorporated municipality. Match rule for Centennial: 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 Centennial 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.