Circle Hot Springs, AK 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 Circle Hot Springs's primary NOAA station, CIRCLE HOT SPRINGS.
The climate verdict for Circle Hot Springs
Winter sets the terms in Circle Hot Springs, Alaska. A pronounced 74.5°F seasonal swing and heating demand above twice the cooling total frame an annual average of 21°F. July is the warmest month at 59°F and January the coldest at -16°F.
- 21°F
- annual average temperature (NOAA normal)
- 12.1"
- yearly precipitation total
Circle Hot Springs: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00501987 · Circle Hot Springs, AK 21°F mean · 12.1" precip
TEMP-COLD · RANK-COOL · ABOVE-PEER · PRCP-DRY · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 21°F
- RANK-COOL #1
- ABOVE-PEER over Chandalar Shelf…
- PRCP-DRY 12.1"
- SWING-WIDE 75°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 15,902 HDD
- STN-1 USC00501987
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Chandalar Shelf Dot, AK ( -1.8 °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 Deering, AK 23°F
- Circle Hot Spri… (this station) 21°F
- Near Chandalar Shelf…, AK 20°F
- Cold Toolik Lake, AK 19°F
- Near Chandalar Lake, AK 19°F
Circle Hot Springs 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 · Circle Hot Springs
Circle Hot Springs: 4/100 · grade F
Circle Hot Springs publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Circle Hot Springs, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 12.1 in · 22.9 from 35 in | 19/100 · F |
| Annual temperature balance | 21.3°F · 46.2° from 67.5°F | 0/100 · F |
| Normal heat + freeze calendar | 257 calendar days | 0/100 · F |
Circle Hot Springs · 2026-08-04 · NOAA NCEI Climate Normals · method .
Circle Hot Springs is a continental Köppen climate: Dsc
Coldest-month mean -15.6°F and warmest-month mean 58.9°F place this station in continental, dry-summer, cool summer climates (Dsc). Class Dsc is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, cool summer.
- Köppen code
- Dsc
- Group
- Continental
- Warmest month
- 58.9°F
- Coldest month
- -15.6°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 Circle Hot Springs sits across the climate record
Three NOAA fields for Circle Hot Springs's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 100%
- Among 6,861 stations, Circle Hot Springs sits in the cooler third of annual means.
- Annual precipitation
- Drier than 90%
- Circle Hot Springs's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 99%
- Warmest-to-coldest month gap for Circle Hot Springs is large versus 6,861 complete station-years.
Circle Hot Springs's measured station temperature trend
MethodologyAcross 35 complete annual observations from 1944 to 2025, CIRCLE HOT SPRINGS warmed at a fitted rate of 0.31°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Circle Hot Springs primary station fitted change +0.31 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | -9°F (-23°C) | -23°F (-30°C) | -16°F (-26°C) | 0.4" | 31.0 | 0.0 |
| February | 1°F (-17°C) | -19°F (-28°C) | -9°F (-23°C) | 0.3" | 28.0 | 0.0 |
| March | 15°F (-10°C) | -13°F (-25°C) | 1°F (-17°C) | 0.2" | 31.0 | 0.0 |
| April | 40°F (4°C) | 11°F (-12°C) | 25°F (-4°C) | 0.3" | 29.4 | 0.0 |
| May | 59°F (15°C) | 31°F (-1°C) | 45°F (7°C) | 0.7" | 19.4 | 0.0 |
| June | 71°F (22°C) | 42°F (5°C) | 56°F (14°C) | 2.6" | 2.7 | 0.1 |
| July | 72°F (22°C) | 45°F (7°C) | 59°F (15°C) | 2.6" | 0.7 | 0.1 |
| August | 65°F (18°C) | 39°F (4°C) | 52°F (11°C) | 1.8" | 7.8 | 0.0 |
| September | 52°F (11°C) | 28°F (-2°C) | 40°F (4°C) | 1.4" | 22.1 | 0.0 |
| October | 27°F (-3°C) | 10°F (-12°C) | 19°F (-7°C) | 0.8" | 30.3 | 0.0 |
| November | 4°F (-16°C) | -12°F (-25°C) | -4°F (-20°C) | 0.4" | 30.0 | 0.0 |
| December | -4°F (-20°C) | -20°F (-29°C) | -12°F (-24°C) | 0.5" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 75°F around June 30, short of 90°F on every date, while 257 dates carry a normal low at or below freezing, the coldest -23°F near January 11.
The freezing stretch
The normal low stays at or below 32°F into May 18, then returns to freezing around September 5, covering 257 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 July 12, when 41% of years recorded at least a hundredth of an inch. The driest is April 3 at 10%. Summed across the calendar, that is about 90 wet dates a year.
The widest day
June 15 carries the biggest normal gap between afternoon and dawn, 30°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Circle Hot Springs.
Where Circle Hot Springs Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 257 nights a year, placing this among the most frost-prone tenth of ranked stations.
A drier-than-most normal water year — around 12 inches, below what four out of five ranked stations collect.
Circle Hot Springs earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
7.0 days with precipitation
4.0 days with precipitation
3.6 days with precipitation
2.7 days with precipitation
5.7 days with precipitation
9.2 days with precipitation
13.0 days with precipitation
11.9 days with precipitation
10.3 days with precipitation
8.4 days with precipitation
6.2 days with precipitation
7.1 days with precipitation
Circle Hot Springs runs a summer-peaked wet season
59% of Circle Hot Springs'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 June at 2.6", on a wide 74.5°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: June, July, August, taking 59% of the annual total between them.
- Driest month: March at 0.2".
- Winter share: 10% 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.
Circle Hot Springs is dry, and what does fall arrives gently
Only about 89 days a year record measurable precipitation here, 24% of the calendar, and they carry 12.1" 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 July at about 13 wet days; the driest is April at about 3.
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.
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
15,902
Higher = more heating needed
Cooling Degree Days
19
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside AK closest to Circle Hot Springs 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 (21°F here).
- Cooke City, MT 34°F · 12.9°F off
- Crested Butte, CO 34°F · 12.9°F off
- Silver Gate, MT 34°F · 13.0°F off
- Stanley, ID 34°F · 13.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.1" here), excluding temperature-peer places.
- Seligman, AZ 12.1" · 0.0" off
- Navajo Dam, NM 12.1" · 0.0" off
- Long Beach, CA 12.0" · 0.0" off
- Camarillo, CA 12.0" · 0.0" off
Scarce-water calendar
Where Circle Hot Springs's limited precipitation lands
heating led · dry · high swing
Winter and seasonal range jointly define this record. Circle Hot Springs logs 15,902 heating degree days, more than twice its 19 cooling total, while the typical coldest-to-warmest-month gap reaches 74.5°F. The annual mean therefore compresses two materially different seasons.
A frost-free growing-season length is not available for Circle Hot Springs. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
July and January mark the typical warm and cold ends of the calendar in this dry, high-range record. The gap is 74.5°F, so a single annual figure is especially lossy; the annual average is 21°f. Compare monthly temperature and precipitation together before drawing a seasonal conclusion about Circle Hot Springs.
Circle Hot Springs's cold-season load does not imply a wet climate. Annual precipitation is 12.1 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.
Circle Hot Springs wettest normal
June
June concentrates the scarce annual total (12.1 inches).
Circle Hot Springs driest normal
March
March is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Circle Hot Springs's climate
How dry is Circle Hot Springs? ▼
How cold does Circle Hot Springs get in winter? ▼
How much energy does heating and cooling require in Circle Hot Springs? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Circle Hot Springs's primary station: CIRCLE HOT SPRINGS (USC00501987). 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 Circle Hot Springs; 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 Circle Hot Springs 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.