Photo: not specified · Public domainHardly any U.S. towns collect more precipitation than Sekiu: 99 inches a year
In July the day’s top temperature is typically 65°. Summers stay cool: July afternoons here are cooler than in almost every U.S. town. Since 1901–2000, the year has warmed by 1.0°, most of all in January. The frost-free window for a garden runs roughly April 26 to October 25.
A year in Sekiu at a glance
Each month’s typical high and low, and what it brings.
What stands out about Sekiu’s climate
Compared with towns across the U.S., with Sekiu’s place in Washington beside it.
What a year in Sekiu feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 182 frost-free days a year
In half of years the last 32° night comes by April 26 and the first by October 25. Frost and day counts come from Forks 1 E, WA, 21 miles away.
The 2023 USDA map puts Sekiu’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 24°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 99 inches of rain a year
November is the wettest month and July the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Sekiu
99% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Forks 1 E, WA.
Living with Sekiu’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
182 frost-free days in zone 9a. The last frost comes by Apr 26 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 25.
Months with highs of 62–84° and lows of 40° or more: July, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Sekiu from natural hazards, tsunamis are the largest share (51%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Sekiu and similar climates
TownRatings has no climate map of the towns around Sekiu yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Sekiu averaged 0.9° warmer than the 1900s. The biggest change is in January (+2.4°).
A smaller shift than in 81% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Sekiu compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Sekiu’s place among Washington’s.
Sekiu weather by month
Highs, lows and precipitation from NOAA’s grid at Sekiu’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 47° | 37° | 15.7" | 36° – 47° |
| February | 49° | 36° | 9.6" | 36° – 48° |
| March | 51° | 38° | 10.7" | 40° – 50° |
| April | 55° | 40° | 7.3" | 43° – 52° |
| May | 59° | 45° | 3.9" | 48° – 55° |
| June | 62° | 48° | 2.6" | 52° – 59° |
| July | 65° | 51° | 1.6" | 55° – 60° |
| August | 66° | 51° | 2.2" | 56° – 60° |
| September | 64° | 49° | 3.9" | 54° – 60° |
| October | 57° | 44° | 10.7" | 48° – 55° |
| November | 51° | 39° | 15.9" | 42° – 50° |
| December | 47° | 36° | 14.7" | 37° – 44° |
| Year | 56° | 43° | 98.8" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 36° to 48°. August is the most reliable, staying within 5°.
Where Sekiu’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Sekiu’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Forks 1 E, WA, 21 miles from the town’s center, 250 ft higher; no station nearby passes every check; this is the nearest one in the same valley, flagged above.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Sekiu’s climate
What is the weather like in Sekiu?
A typical July afternoon reaches 65°, a January night drops to 37°. Milder January nights than 84% of U.S. towns; cooler July afternoons than all but 20 U.S. towns.
How cold does it get in Sekiu in winter?
February nights average 36°. About 60 nights a year reach 32° or below. In the coldest February of the last 30 years the month averaged 36°.
How hot does it get in Sekiu?
July, with a typical high of 65° and a low of 51°. About 4 days a year reach 90° (Forks 1 E, WA).
When is the first and last frost in Sekiu?
In half of years the last spring frost (32°) comes by April 26 and the first fall frost by October 25, about 182 frost-free days, at Forks 1 E, WA.
What growing zone is Sekiu in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 24°.
What is the best time of year to visit Sekiu?
By one simple rule (highs of 62–84° and lows of 40° or more), July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Sekiu getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 81% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Sekiu.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.