Mill Creek East weather by month
What a typical year looks like in Mill Creek East, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Seattle Sand Point WFO, 17 km from Mill Creek East; records cover 1894–2026.
The year at a glance
- Precipitation a year
- 37.8 in961 mm
- Snow a year
- 4 in10 cm
- Last spring freeze
- Mar 11
- First fall freeze
- Nov 20
- Heating degree days
- 4,482
- Cooling degree days
- 210
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 26°−3° (heating, 99%) and 88°31° (cooling, 1%).
Month by month
Mill Creek East in January
Highs average 47°9° and lows 37°3°, with 5.1 in131 mm of precipitation and 0.9 in2.3 cm of snow in a typical January.
- Record high
- 67°19° (1931)
- Record low
- 11°−12° (1907)
- Heating degree days
- 704
- Cooling degree days
- 0
Mill Creek East in February
Highs average 50°10° and lows 37°3°, with 3.5 in90 mm of precipitation and 1 in2.5 cm of snow in a typical February.
- Record high
- 74°23° (1968)
- Record low
- 11°−12° (1989)
- Heating degree days
- 605
- Cooling degree days
- 0
Mill Creek East in March
Highs average 54°12° and lows 39°4°, with 3.9 in98 mm of precipitation in a typical March.
- Record high
- 78°26° (2004)
- Record low
- 20°−7° (1897)
- Heating degree days
- 572
- Cooling degree days
- 0
Mill Creek East in April
Highs average 59°15° and lows 43°6°, with 3 in76 mm of precipitation in a typical April.
- Record high
- 89°32° (2016)
- Record low
- 30°−1° (1920)
- Heating degree days
- 426
- Cooling degree days
- 0
Mill Creek East in May
Highs average 65°19° and lows 48°9°, with 2.2 in55 mm of precipitation in a typical May.
- Record high
- 92°33° (1934)
- Record low
- 35°2° (1954)
- Heating degree days
- 258
- Cooling degree days
- 4
Mill Creek East in June
Highs average 70°21° and lows 53°12°, with 1.6 in40 mm of precipitation in a typical June.
- Record high
- 107°42° (2021)
- Record low
- 40°4° (1924)
- Heating degree days
- 124
- Cooling degree days
- 18
Mill Creek East in July
Highs average 77°25° and lows 57°14°, with 0.78 in20 mm of precipitation in a typical July.
- Record high
- 105°41° (2009)
- Record low
- 44°7° (1902)
- Heating degree days
- 31
- Cooling degree days
- 78
Mill Creek East in August
Highs average 77°25° and lows 57°14°, with 1 in25 mm of precipitation in a typical August.
- Record high
- 97°36° (1960)
- Record low
- 46°8° (1899)
- Heating degree days
- 23
- Cooling degree days
- 86
Mill Creek East in September
Highs average 71°22° and lows 53°12°, with 1.7 in44 mm of precipitation in a typical September.
- Record high
- 92°33° (1937)
- Record low
- 36°2° (1895)
- Heating degree days
- 106
- Cooling degree days
- 24
Mill Creek East in OctoberThis month
Highs average 61°16° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical October.
- Record high
- 88°31° (2022)
- Record low
- 29°−2° (1919)
- Heating degree days
- 354
- Cooling degree days
- 0
Mill Creek East in November
Highs average 52°11° and lows 41°5°, with 5.9 in149 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 76°24° (2010)
- Record low
- 13°−11° (1955)
- Heating degree days
- 558
- Cooling degree days
- 0
Mill Creek East in December
Highs average 47°8° and lows 37°3°, with 5.6 in141 mm of precipitation and 1.7 in4.3 cm of snow in a typical December.
- Record high
- 65°18° (1939)
- Record low
- 9°−13° (1990)
- Heating degree days
- 721
- Cooling degree days
- 0