Cooper Lake Project, AK Climate: Temperature 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 Cooper Lake Project's primary NOAA station, COOPER LAKE PROJECT.
The climate verdict for Cooper Lake Project
Cooper Lake Project, Alaska has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 38°F. July is the warmest month at 56°F and January the coldest at 21°F.
- 38°F
- annual average temperature (NOAA normal)
- 132 days
- frost-free growing season
Cooper Lake Project: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00502144 · Cooper Lake Project, AK 38°F mean
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COLD 38°F
- RANK-COOL #206
- PHOTO-FINISH ≈ Tuolumne Meadow…
- PRCP-UNK Rain n/a
- SWING-MID 35°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 9,689 HDD
- STN-1 USC00502144
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Tuolumne Meadows Ranger Station, CA (+ 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 AK station list.
- Hot Afton, WY 39°F
- Cooper Lake Pro… (this station) 38°F
- Cold Warren, ID 38°F
- Near Tuolumne Meadow…, CA 38°F
- Near Rainier Paradis…, WA 38°F
Cooper Lake Project sits in Alaska, the #1 coldest U.S. state at 33.5°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Cooper Lake Project
Cooper Lake Project: 8/100 · grade F
Cooper Lake Project publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Cooper Lake Project, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 200 calendar days | 14/100 · F |
| Frost-free season | 132 days/year | 13/100 · F |
| Annual temperature balance | 38.4°F · 29.1° from 67.5°F | 1/100 · F |
Cooper Lake Project · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Cooper Lake Project sits across the climate record
Available NOAA 1991–2020 fields for Cooper Lake Project are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 97%
- Among 6,861 stations, Cooper Lake Project sits in the cooler third of annual means.
- Seasonal temperature swing
- Narrower than 82%
- Warmest-to-coldest month gap for Cooper Lake Project is compact 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 | 28°F (-2°C) | 15°F (-9°C) | 21°F (-6°C) | N/A | 28.1 | 0.0 |
| February | 32°F (0°C) | 17°F (-8°C) | 25°F (-4°C) | N/A | 24.5 | 0.0 |
| March | 36°F (2°C) | 19°F (-7°C) | 27°F (-3°C) | N/A | 27.4 | 0.0 |
| April | 46°F (8°C) | 27°F (-3°C) | 37°F (3°C) | N/A | 20.2 | 0.0 |
| May | 55°F (13°C) | 35°F (2°C) | 45°F (7°C) | N/A | 8.2 | 0.0 |
| June | 63°F (17°C) | 43°F (6°C) | 53°F (12°C) | N/A | 0.2 | 0.0 |
| July | 65°F (18°C) | 48°F (9°C) | 56°F (13°C) | N/A | 0.0 | 0.0 |
| August | 65°F (18°C) | 47°F (8°C) | 56°F (13°C) | N/A | 0.0 | 0.0 |
| September | 55°F (13°C) | 40°F (4°C) | 48°F (9°C) | N/A | 4.4 | 0.0 |
| October | 45°F (7°C) | 31°F (0°C) | 38°F (4°C) | N/A | 19.0 | 0.0 |
| November | 36°F (2°C) | 23°F (-5°C) | 30°F (-1°C) | N/A | 24.9 | 0.0 |
| December | 32°F (0°C) | 19°F (-7°C) | 25°F (-4°C) | N/A | 29.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 66°F around August 5, short of 90°F on every date, while 200 dates carry a normal low at or below freezing, the coldest 14°F near January 14.
The freezing stretch
The normal low stays at or below 32°F into May 1, then returns to freezing around October 15, 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.
The widest day
May 27 carries the biggest normal gap between afternoon and dawn, 20°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Cooper Lake Project.
Where Cooper Lake Project 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.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 20°F.
Cooper Lake Project earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
September 27
50% probability date
Last Spring Freeze
May 18
50% probability date
Growing Season
132 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,689
Higher = more heating needed
Cooling Degree Days
2
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside AK closest to Cooper Lake Project 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 (38°F here).
- Baudette, MN 38°F · 0.0°F off
- Floodwood, MN 38°F · 0.0°F off
- Pembina, ND 38°F · 0.0°F off
- Van Buren, ME 38°F · 0.0°F off
Data-derived climate profile
How Cooper Lake Project's climate pattern fits together
heating led · mid swing
Cooper Lake Project's energy balance leans toward cold weather: 9,689 annual heating degree days against 2 for cooling. Its 34.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 132 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 Cooper Lake Project's middle-range seasonal profile. The measured spread is 34.9°F. The annual average is 38°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Cooper Lake Project'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 Cooper Lake Project'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 Cooper Lake Project, not an official NOAA class or a year-ahead forecast.
Questions about Cooper Lake Project's climate
How cold does Cooper Lake Project get in winter? ▼
How much energy does heating and cooling require in Cooper Lake Project? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Cooper Lake Project's primary station: COOPER LAKE PROJECT (USC00502144). 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 Cooper Lake Project; 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 Cooper Lake Project 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.