Frost dates / Washington / Lakewood

Frost dates in Lakewood, WA

The station on this page is TACOMA NARROWS AP, WA US (USW00094274), 7.5 miles from the city point. Population in the Census 2024 estimate is 62,709.

Zone 8bUSDA average annual extreme minimum 15°F to 20°F, from ZIP 98499 (1 miles from the city point used on this page).

Median last 32°F is March 11. Median first 32°F is November 21. The 50% growing-season length is 254 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	February 15	Earlier date. A last 32°F on or after this day is common.
50%	March 11	Median.
10%	April 2	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	November 3	Earlier date. A first 32°F on or before this day is uncommon.
50%	November 21	Median.
90%	December 10	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	286
50%	254
90%	226

28°F threshold

	10%	50%	90%
Last, on or after	March 8	February 13	January 1
First, on or before	November 18	December 11	January 19
Season at least	350 days	307 days	273 days

36°F threshold

	10%	50%	90%
Last, on or after	May 2	April 11	March 26
First, on or before	October 21	November 4	November 19
Season at least	228 days	204 days	181 days

Station TACOMA NARROWS AP, WA US (USW00094274). Completeness flag R, 21 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 89 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

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Lakewood, WA

Zone 8bAverage annual extreme minimum 15°F to 20°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Washington. Nearest qualified station: TACOMA NARROWS AP, WA US (USW00094274), 7.5 miles. Median last 32°F March 11. Median first 32°F November 21. The 50% growing-season length is 254 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 2	March 11	February 15
First 32°F on or before	November 3	November 21	December 10

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

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Planting calendar

Frost dates for Washington are above. Planting windows appear for states with a cited extension guide. The fall and seed tools use the numbers you enter and the station dates.

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