Kenai, 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 Kenai's primary NOAA station, KENAI 29 ENE - 2 stations mapped to the area.
The climate verdict for Kenai
Dryness leads the climate profile for Kenai, Alaska, with 18.8 inches of precipitation a year. NOAA records an annual average of 34°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.
- 34°F
- annual average temperature (NOAA normal)
- 40/100
- comfort score, above 6% of station-mapped location scores
- 18.8"
- annual precipitation
- 99 days
- growing season, frost-free days
Kenai: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00026563 · Kenai, AK 34°F mean · 18.8" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-MULTI · BOOK-FULL
- TEMP-COLD 34°F
- RANK-COOL #69
- PHOTO-FINISH ≈ Soldotna
- PRCP-DRY 18.8"
- SWING-MID 44°F
- COMF-LOW 40/100
- LOAD-HEAT 11,202 HDD
- STN-MULTI USW00026563
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Soldotna, AK ( -0.1 °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.
- Kenai (this station) 34°F
- Cold Soldotna, AK 34°F
- Hot Hayes River, AK 34°F
- Near Campbell Creek…, AK 34°F
- Near Snake Rvr, WY 34°F
Kenai 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 · Kenai
Kenai: 10/100 · grade F
Kenai publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Kenai, not an official NOAA rating. Rankings still use Comfort Score 40/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 18.8 in · 16.2 from 35 in | 43/100 · D |
| Normal heat + freeze calendar | 221 calendar days | 5/100 · F |
| Annual temperature balance | 34.2°F · 33.3° from 67.5°F | 0/100 · F |
| Frost-free season | 99 days/year | 0/100 · F |
Kenai · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Kenai is a continental Köppen climate: Dfc
Coldest-month mean 12.3°F and warmest-month mean 56.1°F place this station in continental, no dry season, cool summer climates (Dfc). Class Dfc is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, cool summer.
- Köppen code
- Dfc
- Group
- Continental
- Warmest month
- 56.1°F
- Coldest month
- 12.3°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 Kenai sits across the climate record
Three NOAA fields for Kenai's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 99%
- Among 6,861 stations, Kenai sits in the cooler third of annual means.
- Annual precipitation
- Drier than 74%
- Kenai's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 52nd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Kenai compares across U.S. station-mapped locations
Kenai'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 | 22°F (-6°C) | 3°F (-16°C) | 12°F (-11°C) | 0.9" | 30.3 | 0.0 |
| February | 29°F (-2°C) | 9°F (-13°C) | 19°F (-7°C) | 1.2" | 27.6 | 0.0 |
| March | 34°F (1°C) | 12°F (-11°C) | 23°F (-5°C) | 0.7" | 30.1 | 0.0 |
| April | 46°F (8°C) | 25°F (-4°C) | 35°F (2°C) | 0.7" | 25.1 | 0.0 |
| May | 58°F (14°C) | 33°F (1°C) | 45°F (7°C) | 0.9" | 14.0 | 0.0 |
| June | 65°F (18°C) | 40°F (4°C) | 53°F (11°C) | 1.4" | 2.1 | 0.0 |
| July | 67°F (20°C) | 45°F (7°C) | 56°F (13°C) | 2.1" | 0.0 | 0.0 |
| August | 65°F (18°C) | 43°F (6°C) | 54°F (12°C) | 2.9" | 1.9 | 0.0 |
| September | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 3.0" | 8.9 | 0.0 |
| October | 43°F (6°C) | 25°F (-4°C) | 34°F (1°C) | 2.0" | 20.2 | 0.0 |
| November | 28°F (-2°C) | 11°F (-12°C) | 19°F (-7°C) | 1.4" | 28.4 | 0.0 |
| December | 24°F (-5°C) | 5°F (-15°C) | 15°F (-10°C) | 1.6" | 30.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 67°F around July 10, short of 90°F on every date, while 221 dates carry a normal low at or below freezing, the coldest 2°F near January 9.
The freezing stretch
The normal low stays at or below 32°F into May 9, then returns to freezing around October 2, covering 221 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 4 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Kenai.
Where Kenai Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 221 nights a year, placing this among the most frost-prone tenth of ranked stations.
Kenai 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
Kenai spreads its precipitation across the year
Neither half of the year dominates here: June through August take 34% of the annual total and December through February 19%, with neither reaching the 35% that would mark a distinct wet season. Kenai has no dry season to plan around, though it does carry a 43.8°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 3.0" and March 0.7". The three wettest months together take 43% 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
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
11,202
Higher = more heating needed
Cooling Degree Days
1
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside AK closest to Kenai 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 (34°F here).
- Cooke City, MT 34°F · 0.0°F off
- Crested Butte, CO 34°F · 0.0°F off
- Silver Gate, MT 34°F · 0.1°F off
- Stanley, ID 34°F · 0.2°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (18.8" here), excluding temperature-peer places.
- Rapid City, SD 18.8" · 0.0" off
- Dayton, WA 18.8" · 0.0" off
- Upham, ND 18.8" · 0.0" off
- Lakin, KS 18.8" · 0.0" off
Data-derived climate profile
How Kenai's climate pattern fits together
heating led · dry · mid swing
Kenai's energy balance leans toward cold weather: 11,202 annual heating degree days against 1 for cooling. Its 43.8°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.
July and January mark the typical warm and cold ends of the calendar in Kenai's middle-range seasonal profile. The measured spread is 43.8°F. The annual average is 34°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Kenai's cold-season load does not imply a wet climate. Annual precipitation is 18.8 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.
These labels group NOAA 1991-2020 normals from Kenai'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 Kenai, not an official NOAA class or a year-ahead forecast.
Questions about Kenai's climate
How much rain does Kenai get? ▼
How cold does Kenai get in winter? ▼
How much energy does heating and cooling require in Kenai? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Kenai's primary station: KENAI 29 ENE (USW00026563). 2 NOAA stations are mapped to the Kenai area; the primary station's record is used for consistency. 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 0238420). Match rule for Kenai: 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 Kenai 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.