Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Sumas, Washington

Shoots and Sprouts Rise in Ranks. Day 59 of spring. Read this microseason across nine climate regions →

Sumas, WA
Sunday, May 17 at 12:36 AM
56
°
Partly Cloudy
Feels like
50°
Humidity
59%
Wind
10 mph
Sunrise
5:24 AM
Sunset
8:46 PM
Sumas, WA
Hour by hour · 24h
60°
13%
5p
56°
22%
6p
56°
29%
7p
55°
35%
8p
52°
38%
9p
52°
50%
10p
51°
56%
11p
50°
41%
12a
50°
45%
1a
49°
15%
2a
48°
11%
3a
47°
10%
4a
47°
11%
5a
48°
12%
6a
49°
13%
7a
50°
19%
8a
51°
26%
9a
50°
50%
10a
50°
74%
11a
47°
69%
12p
49°
65%
1p
51°
60%
2p
50°
80%
3p
51°
78%
4p
L 47°H 60°
Sumas, WA
7-day forecast
  1. Today
    May 16
    Light Drizzle
    43%
    57°45°
  2. Sunday
    May 17
    Overcast
    63°47°
  3. Monday
    May 18
    Overcast
    64°46°
  4. Tuesday
    May 19
    Light Rain
    22%
    59°46°
  5. Wednesday
    May 20
    Overcast
    69°44°
  6. Thursday
    May 21
    Partly Cloudy
    71°46°
  7. Friday
    May 22
    Overcast
    68°48°
Sumas, WA
Anemometer · 24h winds · from true
NESW
From · True
WSW
242° · backing 131°
Direction
WSW
242°
Sustained
10
mph
Gust
13
mph
Peak 24h
16
avg 7
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 16 @ 7:00a
−24h−18h−12h−6hnow
Light breeze backing 131° from the wsw.
Sumas, WA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1018.7
-0.3 mb in 3h · steady · 30.08 inHg
Now
1018.7
mb
3h
-0.3
mb
12h
0.0
mb
24h
+3.0
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10161019
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
Sumas, WA
Air quality
36
AQI
Good
PM 2.5
1.1 μg/m³
PM 10
1.3 μg/m³
NO₂
1.9 μg/m³
Ozone
78.0 μg/m³
UV Index
1.2 Low
Sumas, WA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:48 AM
Sunrise
5:24 AM
Daylight
15h 22m
Sunset
8:46 PM
Civil dusk
4:25 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Sumas, WA
The moon
New Moon
0% illuminated
Moonrise
12:20 PM
Moonset
4:36 AM
In sign
♉︎ Taurus
Sumas, WA
Microseason · 28 of 72
May 16–20

Shoots and Sprouts Rise in Ranks

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Sumas at a glance

  • Today vs. normal: 7°F below the seasonal normal for this latitude
  • Last frost: June 9 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Sumas

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.