Mill Bay weather by month
What a typical year looks like in Mill Bay, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Kodiak Airport, 10 km from Mill Bay; records cover 1913–2026.
The year at a glance
- Precipitation a year
- 78.3 in1989 mm
- Snow a year
- 70 in179 cm
- Last spring freeze
- May 16
- First fall freeze
- Sep 29
- Heating degree days
- 8,316
- Cooling degree days
- 7
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 7°−14° (heating, 99%) and 73°23° (cooling, 1%).
Month by month
Mill Bay in January
Highs average 36°2° and lows 26°−3°, with 8.4 in212 mm of precipitation and 15 in37 cm of snow in a typical January.
- Record high
- 54°12° (1963)
- Record low
- −16°−27° (1989)
- Heating degree days
- 1049
- Cooling degree days
- 0
Mill Bay in February
Highs average 38°3° and lows 27°−3°, with 6.3 in160 mm of precipitation and 14 in37 cm of snow in a typical February.
- Record high
- 60°16° (1923)
- Record low
- −12°−24° (1971)
- Heating degree days
- 914
- Cooling degree days
- 0
Mill Bay in March
Highs average 39°4° and lows 28°−2°, with 4.8 in122 mm of precipitation and 12 in31 cm of snow in a typical March.
- Record high
- 57°14° (1963)
- Record low
- −6°−21° (1971)
- Heating degree days
- 986
- Cooling degree days
- 0
Mill Bay in April
Highs average 45°7° and lows 34°1°, with 6.1 in156 mm of precipitation and 6 in16 cm of snow in a typical April.
- Record high
- 70°21° (1918)
- Record low
- 7°−14° (1977)
- Heating degree days
- 776
- Cooling degree days
- 0
Mill Bay in May
Highs average 52°11° and lows 40°4°, with 5.9 in149 mm of precipitation and 0.5 in1.3 cm of snow in a typical May.
- Record high
- 80°27° (1968)
- Record low
- 18°−8° (1945)
- Heating degree days
- 595
- Cooling degree days
- 0
Mill Bay in June
Highs average 57°14° and lows 46°8°, with 5.2 in131 mm of precipitation in a typical June.
- Record high
- 86°30° (1953)
- Record low
- 30°−1° (1968)
- Heating degree days
- 410
- Cooling degree days
- 1
Mill Bay in July
Highs average 62°17° and lows 51°10°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 83°28° (2019)
- Record low
- 35°2° (1927)
- Heating degree days
- 277
- Cooling degree days
- 3
Mill Bay in August
Highs average 63°17° and lows 50°10°, with 4.9 in124 mm of precipitation in a typical August.
- Record high
- 86°30° (2019)
- Record low
- 34°1° (1998)
- Heating degree days
- 265
- Cooling degree days
- 3
Mill Bay in September
Highs average 57°14° and lows 44°7°, with 7.6 in192 mm of precipitation in a typical September.
- Record high
- 80°27° (1929)
- Record low
- 26°−3° (1968)
- Heating degree days
- 431
- Cooling degree days
- 0
Mill Bay in OctoberThis month
Highs average 48°9° and lows 36°2°, with 8.9 in225 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 74°23° (1929)
- Record low
- 7°−14° (1917)
- Heating degree days
- 708
- Cooling degree days
- 0
Mill Bay in November
Highs average 41°5° and lows 30°−1°, with 7.1 in179 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 60°16° (1924)
- Record low
- 0°−18° (1971)
- Heating degree days
- 879
- Cooling degree days
- 0
Mill Bay in December
Highs average 37°3° and lows 27°−3°, with 8.8 in224 mm of precipitation and 16 in40 cm of snow in a typical December.
- Record high
- 65°18° (2021)
- Record low
- −9°−23° (1916)
- Heating degree days
- 1026
- Cooling degree days
- 0