Lake Stevens weather in August

In August, Lake Stevens sees average daytime highs of 73°F and overnight lows near 53°F, with 1.8 in of rain across 5.7 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 74°F in the first days to 71°F by the end. The sky is clear or mostly clear about 46% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Lake Stevens's 2nd-clearest and 11th-windiest month. For the whole year in context, see Lake Stevens's year-round climate.

Daytime high
73°
1st warmest
Overnight low
53°
11th coldest
Rainfall
1.8 in
5.7 wet days
Daylight
14 h 06 min
5:09 AM – 7:16 PM
Cloud cover
46%
2nd clearest
Wind
4 mph
11th windiest
Solar energy
5.35 kWh/m²
Travel score
7.8
out of 10

Lake Stevens is city in Snohomish County, Washington, United States.

Density
1,342/km²
people per km²
Founded
1889

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 74°F in the first days to 71°F by the end.

A typical August day in Lake Stevens reaches about 73°F in the afternoon and slips back to 53°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 83°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17454
27454
37454
47454
57454
67454
77454
87454
97454
107454
117454
127454
137454
147454
157454
167454
177354
187354
197353
207353
217353
227353
237353
247253
257253
267252
277252
287252
297152
307152
317151

How August really feels in Lake Stevens

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lake Stevens weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan44° / 35°11.019.55.58.60.6
Feb47° / 35°7.115.74.69.91.3
Mar51° / 37°8.619.83.611.62.0
Apr57° / 41°6.517.10.913.43.2
May63° / 46°4.3130.114.95.0
Jun66° / 50°3.410.7015.85.9
Jul73° / 54°1.66.2015.47.6
Aug73° / 53°1.85.7014.17.8
Sep67° / 49°4.09.2012.46.5
Oct57° / 43°8.715.4010.63.7
Nov48° / 37°12.019.62.191.4
Dec43° / 34°10.619.268.20.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
36832
46832
56733
66634
76535
86535
96436
106238
116238
126139
136139
146040
156040
166040
176040
186040
196040
206040
216040
226040
236040
245941
255941
265941
276040
285941
295941
305941
315941

Chance of precipitation in August

Any precipitation

Lake Stevens gets around 1.8 in of rain over 5.7 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 26% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
113
213
314
414
514
615
715
815
915
1016
1116
1216
1316
1416
1517
1617
1717
1817
1918
2018
2119
2220
2321
2421
2522
2623
2724
2824
2925
3026
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
160355
260364
360364
459374
559374
658384
757394
857394
956404
1056404
1156404
1257394
1357394
1459383
1560373
1661363
1762353
1863343
1964333
2066322
2167312
2268302
2369292
2470282
2572271
2673261
2773261
2874251
2975241
3075241
3175241

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 4:48 AM to 5:30 AM, and sunset from 7:40 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:487:40
214.84:507:39
314.84:517:37
414.74:527:36
514.74:547:34
614.64:557:33
714.64:567:31
814.54:587:30
914.54:597:28
1014.45:007:26
1114.45:027:25
1214.35:037:23
1314.35:057:21
1414.25:067:20
1514.25:077:18
1614.15:097:16
1714.15:107:14
1814.05:117:12
1914.05:137:10
2013.95:147:09
2113.95:167:07
2213.85:177:05
2313.75:187:03
2413.75:207:01
2513.65:216:59
2613.65:236:57
2713.55:246:55
2813.55:266:53
2913.45:276:51
3013.35:286:49
3113.35:306:47

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.35 kWh/m².

For context, solar energy here swings from a low near 0.83 kWh/m² to a high of 6.11 kWh/m² in July across the year — August's 5.35 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
35.9Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in August

Hazard calendar for Lake Stevens

In seasonPeak

None of Lake Stevens's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Lake Stevens's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Lake Stevens?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.8
Sightseeing
1st-best month of the year
5.9
Beach & pool
1st-best month of the year

August is one of the better times to visit Lake Stevens for general sightseeing.

What to pack for Lake Stevens in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Lake Stevens sees daytime highs around 73°F and nights near 53°F. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Lake Stevens in August

The nearest coast averages about 53°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 39 mi away) is warmest in August at about 53°F and coldest in February near 46°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

45°50°55°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°F)Comfort
Jan46Bracing
Feb46Bracing
Mar47Bracing
Apr48Bracing
May50Bracing
Jun52Bracing
Jul53Bracing
Aug53Bracing
Sep53Bracing
Oct50Bracing
Nov49Bracing
Dec47Bracing

UV index in Lake Stevens in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lake Stevens peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Lake Stevens in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Lake Stevens is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodModerateGoodAug 2119 µg/m³Dec 157 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar12Moderate
Apr12Good
May13Moderate
Jun11Good
Jul10Good
Aug20Moderate
Sep18Moderate
Oct11Good
Nov7Good
Dec6Good
Location & terrain

Where is Lake Stevens?

Lake Stevens sits at 48.0°N, 122.1°W, 217 ft above sea level, in United States. The nearest listed city is West Lake Stevens, 2.5 mi away.

Topography around Lake Stevens

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lake Stevens.

Within 2 miles, the terrain around Lake Stevens has only modest variations in elevation — a maximum elevation change of 361 ft around an average of 276 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,382 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,427 ft.

The land around Lake Stevens is covered by trees (66%) within 2 miles, trees (68%) within 10 miles, and trees (71%) within 50 miles.

2 miles
361 ft
10 miles
2,382 ft
50 miles
10,427 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: West Lake Stevens 2.5 mi · Marysville 5.6 mi · Everett 6.8 mi · Eastmont 9.9 mi · Silver Firs 11 mi · Monroe 12 mi · Mukilteo 12 mi · Mill Creek 12 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lake Stevens (48.0151°, -122.0637°, elevation 217 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).