Nowmal › Washington › Sedro-Woolley
Sedro-Woolley, Washington
The week’s forecast, measured against two yardsticks: the “normal” your weather app still uses — a 1991–2020 average centered on 2005 — and the climate-adjusted normal, which here runs +0.7°F warmer. Same NOAA data. No pretending.
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Month by month
1991 called. It wants its climate baseline back.
| Month | Normal high | Adjusted high | Normal low | Adjusted low | Gap (high) |
|---|---|---|---|---|---|
| January | 38.8° | 41.0° | 29.8° | 32.0° | +2.3° |
| February | 42.1° | 42.3° | 29.9° | 30.4° | +0.2° |
| March | 46.3° | 46.8° | 31.8° | 32.7° | +0.6° |
| April | 52.8° | 52.6° | 35.5° | 36.0° | +-0.1° |
| May | 59.6° | 59.9° | 41.0° | 42.0° | +0.3° |
| June | 63.6° | 63.9° | 45.6° | 46.5° | +0.3° |
| July | 71.0° | 72.1° | 50.4° | 51.7° | +1.1° |
| August | 71.7° | 73.2° | 51.1° | 52.6° | +1.4° |
| September | 65.2° | 66.5° | 47.1° | 48.4° | +1.2° |
| October | 53.4° | 53.6° | 40.0° | 40.5° | +0.3° |
| November | 43.1° | 43.6° | 33.6° | 34.3° | +0.5° |
| December | 37.7° | 38.1° | 29.4° | 29.7° | +0.3° |
The “normal” temperature in every weather app is a 30-year average (1991–2020) — a number centered on mid-2005, two decades out of date in a warming climate. The Climate-Adjusted Normal takes NOAA’s official normal and advances it to the present using this county’s own measured warming trend.
It isn’t a forecast — it’s a more honest yardstick for what “normal” means now. Read why Nowmal exists →
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About this data
The forecast is the National Weather Service’s, for Sedro-Woolley itself. Normals and the warming trend are computed at county level (Skagit County) from NOAA’s homogenized climate record, because climate trends vary smoothly — nearby towns warm at statistically indistinguishable rates. Method details on the methodology page.
Nearby: Mount Vernon · Anacortes · Burlington · Skagit County data page
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