Alaska

Kodiak, Alaska Climate

NOAA 1991-2020 normals for Kodiak Wwtp, 3.4 km from Kodiak

The warmest month is August, with an average high of 61°F; the coldest is January, with an average low of 27°F. A normal year brings 75.6 in of precipitation and 42.9 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Kodiak (Asos) (PADQ), since 1945. The line marks today.

Normal daily high and low temperature at Kodiak through the year, in °F, with the record for each date.-250255075100JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 24

Normal high
53°F
Normal low
43°F
Record high
64°Fin 1951
Record low
29°Fin 2015
Chance of a wet day
69%
Daylight
12 h 03 min

Month by month

Averages for 1991-2020. Wet days have at least 0.01 inch of precipitation. Freeze nights have a low of 32°F or colder; degree days are on a 65°F base. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet daysSnowfallFreeze nightsHeating DDCooling DD
January36°F27°F54°F (1963)-16°F (1989)7.91 in21.110.7 in22.11,0370
February37°F28°F56°F (1957)-12°F (1971)6.03 in17.16.3 in19.69020
March38°F28°F57°F (1963)-6°F (1971)5.11 in16.58.6 in22.49900
April43°F34°F69°F (2005)7°F (1977)5.61 in18.92.9 in11.87950
May50°F40°F80°F (1968)20°F (1949)5.40 in18.40.3 in1.56340
June55°F45°F86°F (1953)30°F (1968)5.11 in17.00.0 in0.04460
July60°F50°F83°F (2019)37°F (2007)4.50 in15.90.0 in0.03171
August61°F50°F86°F (2019)34°F (1998)4.98 in17.60.0 in0.02952
September55°F45°F76°F (2018)26°F (1992)7.25 in20.80.0 in0.14430
October47°F38°F62°F (1983)10°F (1975)8.33 in21.50.0 in5.27010
November41°F32°F59°F (2013)0°F (1971)7.10 in18.86.3 in17.78640
December37°F28°F65°F (2021)-3°F (2011)8.26 in21.67.8 in20.11,0080
Year47°F37°F75.59 in22542.9 in1218,4303

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 0.01 inch of precipitation.

75.6 in in a normal year, most in October.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Kodiak, in percent, and of at least 0.1 inch of snowfall.020406080JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Kodiak Wwtp.

42.9 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Kodiak Wwtp. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around April 29 and the first fall freeze around October 14, a growing season of about 168 days.

Median at 36°F
last May 19, first October 1
Median at 32°F
last April 29, first October 14
Median at 28°F
last April 11, first October 26

Frost dates, growing season and degree days

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Kodiak.

Days with a mean dew point of 65°F or more are rare here in every month.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January27°F89%100%0%0%0%0%0%
February28°F87%100%0%0%0%0%0%
March27°F83%100%0%0%0%0%0%
April33°F84%100%0%0%0%0%0%
May39°F83%100%0%0%0%0%0%
June45°F82%100%0%0%0%0%0%
July49°F82%98%2%0%0%0%0%
August50°F83%96%4%0%0%0%0%
September45°F84%100%0%0%0%0%0%
October37°F84%100%0%0%0%0%0%
November31°F86%100%0%0%0%0%0%
December28°F88%100%0%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 55°F, comfortable to 60°F, humid to 65°F, muggy to 70°F, oppressive to 75°F, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is March, with the sky 73 percent covered on average; the cloudiest is December, at 80 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is December, averaging 16.6 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 19, with 18 h 07 min of daylight; the shortest is Dec 18, with 6 h 31 min.

Hours of daylight at Kodiak through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

How Kodiak Island Borough is running

NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.

August 2026 in Kodiak Island Borough: 53.2°F (+0.3 °F against 1991-2020), the 26th warmest in 102 years on record.

August 2026 in Kodiak Island Borough: 4.05 in (-0.07 in against 1991-2020), the 48th driest in 102 years on record.

January to August 2026 in Kodiak Island Borough: 37.1°F (-2.3 °F against 1991-2020), the 33rd coolest in 102 years on record.

January to August 2026 in Kodiak Island Borough: 35.23 in (-0.09 in against 1991-2020), the 51st driest in 102 years on record.

Warmest August
58.0°F in 2019
Coolest August
49.1°F in 1928
Wettest August
8.33 in in 1939
Driest August
0.96 in in 2019

Every year since 1925

Each year's average temperature in Kodiak Island Borough against the 1991-2020 average, in °F, 1925 to 2025.-7.5-5-2.50+2.5+5+7.519401960198020002020NOAA NCEI Climate at a Glance

Alaska climate and rankings

Month pages

The weather in Kodiak in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1945. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00504991 (Kodiak Wwtp), public domain. Records: NOAA GHCN-Daily, station USW00025501, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus. Rankings: NOAA NCEI Climate at a Glance, public domain.