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Kachemak weather by month

What a typical year looks like in Kachemak, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Homer Airport, 5 km from Kachemak; records cover 1932–2026.

Today’s Kachemak forecast

The year at a glance

January: typical high 31.8°F, low 19°F, precipitation 2.15 in. February: typical high 34.9°F, low 21.7°F, precipitation 1.82 in. March: typical high 37.1°F, low 23.1°F, precipitation 1.32 in. April: typical high 46.1°F, low 31.3°F, precipitation 1.15 in. May: typical high 53.8°F, low 38.2°F, precipitation 0.78 in. June: typical high 59.3°F, low 44.7°F, precipitation 0.87 in. July: typical high 63.1°F, low 49.2°F, precipitation 1.45 in. August: typical high 62.6°F, low 48°F, precipitation 2.31 in. September: typical high 56.7°F, low 42.3°F, precipitation 3.28 in. October: typical high 47.1°F, low 33.3°F, precipitation 2.61 in. November: typical high 37.6°F, low 24.8°F, precipitation 2.87 in. December: typical high 34°F, low 21.4°F, precipitation 3.27 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°32°0°19°−7°Jan35°2°22°−6°Feb37°3°23°−5°Mar46°8°31°0°Apr54°12°38°3°May59°15°45°7°Jun63°17°49°10°Jul63°17°48°9°Aug57°14°42°6°Sep47°8°33°1°Oct38°3°25°−4°Nov34°1°21°−6°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
23.9 in607 mm
Snow a year
Rare
Last spring freeze
May 13
First fall freeze
Sep 27
Heating degree days
9,085
Cooling degree days
0

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 70°21° (cooling, 1%).

Month by month

Kachemak in January

Highs average 32°0° and lows 19°−7°, with 2.2 in55 mm of precipitation in a typical January.

Record high
57°14° (2014)
Record low
−24°−31° (1989)
Heating degree days
1228
Cooling degree days
0

Kachemak in February

Highs average 35°2° and lows 22°−6°, with 1.8 in46 mm of precipitation in a typical February.

Record high
53°12° (2015)
Record low
−19°−28° (1999)
Heating degree days
1028
Cooling degree days
0

Kachemak in March

Highs average 37°3° and lows 23°−5°, with 1.3 in34 mm of precipitation in a typical March.

Record high
54°12° (2015)
Record low
−21°−29° (1971)
Heating degree days
1082
Cooling degree days
0

Kachemak in April

Highs average 46°8° and lows 31°0°, with 1.2 in29 mm of precipitation in a typical April.

Record high
65°18° (2005)
Record low
−9°−23° (1944)
Heating degree days
789
Cooling degree days
0

Kachemak in May

Highs average 54°12° and lows 38°3°, with 0.78 in20 mm of precipitation in a typical May.

Record high
72°22° (2017)
Record low
6°−14° (1949)
Heating degree days
589
Cooling degree days
0

Kachemak in June

Highs average 59°15° and lows 45°7°, with 0.87 in22 mm of precipitation in a typical June.

Record high
80°27° (1953)
Record low
27°−3° (1973)
Heating degree days
390
Cooling degree days
0

Kachemak in July

Highs average 63°17° and lows 49°10°, with 1.5 in37 mm of precipitation in a typical July.

Record high
81°27° (1993)
Record low
34°1° (1947)
Heating degree days
274
Cooling degree days
0

Kachemak in August

Highs average 63°17° and lows 48°9°, with 2.3 in59 mm of precipitation in a typical August.

Record high
78°26° (1944)
Record low
31°−1° (1955)
Heating degree days
301
Cooling degree days
0

Kachemak in September

Highs average 57°14° and lows 42°6°, with 3.3 in83 mm of precipitation in a typical September.

Record high
69°21° (1997)
Record low
20°−7° (1956)
Heating degree days
465
Cooling degree days
0

Kachemak in OctoberThis month

Highs average 47°8° and lows 33°1°, with 2.6 in66 mm of precipitation in a typical October.

Record high
64°18° (1954)
Record low
0°−18° (1938)
Heating degree days
769
Cooling degree days
0

Kachemak in November

Highs average 38°3° and lows 25°−4°, with 2.9 in73 mm of precipitation in a typical November.

Record high
58°14° (1935)
Record low
−7°−22° (1963)
Heating degree days
1014
Cooling degree days
0

Kachemak in December

Highs average 34°1° and lows 21°−6°, with 3.3 in83 mm of precipitation in a typical December.

Record high
52°11° (2014)
Record low
−16°−27° (1964)
Heating degree days
1156
Cooling degree days
0