Cottage Lake weather in March

In March, Cottage Lake sees average daytime highs of 52°F and overnight lows near 38°F, with 7.1 in of precipitation across 19.1 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 50°F in the first days to 54°F by the end. The sky is clear or mostly clear about 15% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of March to 12 h 30 min by month's end. Set against the rest of the year, March is Cottage Lake's 9th-clearest and 5th-windiest month. For the whole year in context, see Cottage Lake's year-round climate.

Daytime high
52°
8th warmest
Overnight low
38°
4th coldest
Precipitation
7.1 in
19.1 wet days
Daylight
11 h 36 min
6:31 AM – 6:05 PM
Cloud cover
74%
9th clearest
Wind
6 mph
5th windiest
Solar energy
2.9 kWh/m²
Travel score
2.2
out of 10

Cottage Lake is census designated place in King County, Washington, United States.

Density
381/km²
people per km²

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 50°F in the first days to 54°F by the end.

A typical March day in Cottage Lake reaches about 52°F in the afternoon and slips back to 38°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 45°F and 61°F. Set against its neighbours, March runs about 4°F warmer than February and about 5°F cooler than April.

20°30°40°50°60°70°151015202531
Avg high (°F)Avg low (°F)
14936
25036
35037
45037
55037
65137
75137
85137
95137
105138
115138
125238
135238
145238
155238
165238
175338
185338
195338
205338
215338
225338
235339
245339
255439
265439
275439
285439
295439
305439
315439

How March really feels in Cottage Lake

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 3 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
3
wind chill below the day's low

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Cottage Lake weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan45° / 36°9.01948.70.8
Feb48° / 36°6.115.52.99.91.5
Mar52° / 38°7.119.12.311.62.2
Apr57° / 41°5.916.70.313.43.4
May63° / 46°4.113.2014.95.1
Jun67° / 51°3.511.4015.75.9
Jul73° / 54°1.66.3015.47.6
Aug74° / 54°1.85.7014.17.8
Sep68° / 49°3.79.2012.46.5
Oct58° / 43°7.415.3010.63.8
Nov49° / 38°9.919.10.99.11.6
Dec44° / 35°8.718.73.98.30.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 11% of March, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32773
42872
52773
62674
72575
82575
92377
102476
112476
122476
132575
142575
152476
162476
172476
182476
192476
202674
212674
222674
232674
242674
252674
262674
272674
282674
292575
302575
312476

Chance of precipitation in March

Any precipitationSnow

Cottage Lake gets around 7.1 in of rain and snow over 19.1 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 61% and peaks near 62% on the wettest days, and about 2 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15811
25811
35911
45910
56010
6609
7619
8619
9618
10628
11628
12628
13628
14628
15627
16627
17627
18627
19627
20627
21627
22617
23616
24616
25606
26606
27605
28605
29605
30595
31594

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 6 mph in March.

Across March, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 42 min at the start of March to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over March. Sunrise moves from 7:01 AM to 6:00 AM, and sunset from 5:42 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:015:42
210.86:595:44
310.86:575:46
410.96:555:47
510.96:535:49
611.06:515:50
711.06:495:52
811.16:475:53
911.26:455:55
1011.26:435:56
1111.36:415:58
1211.36:395:59
1311.46:376:01
1411.56:356:02
1511.56:336:04
1611.66:316:05
1711.66:296:07
1811.76:276:08
1911.76:256:10
2011.86:236:11
2111.96:206:12
2211.96:186:14
2312.06:166:15
2412.06:146:17
2512.16:126:18
2612.26:106:20
2712.26:086:21
2812.36:066:23
2912.36:046:24
3012.46:026:26
3112.56:006:27

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 2.9 kWh/m².

For context, solar energy here swings from a low near 0.86 kWh/m² to a high of 6.13 kWh/m² in July across the year — March's 2.9 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.7Moderate
122.7Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.9Moderate
172.9Moderate
183.0Moderate
193.0Moderate
203.1Moderate
213.1Moderate
223.2Moderate
233.2Moderate
243.3Moderate
253.3Moderate
263.4Moderate
273.4Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.6Moderate
Planning a trip in March

Hazard calendar for Cottage Lake

In seasonPeak

In March, Cottage Lake sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Cottage Lake'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 March a good time to visit Cottage Lake?

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

2.2
Sightseeing
8th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Cottage Lake.

What to pack for Cottage Lake in March

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

In March, Cottage Lake sees daytime highs around 52°F and nights near 38°F. Pack a warm layer and rain gear. About 19 days see rain.

a warm layerrain gear

UV index in Cottage Lake in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cottage Lake 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 17 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 17UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Cottage Lake in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cottage Lake 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 Cottage Lake?

Cottage Lake sits at 47.7°N, 122.1°W, 236 ft above sea level, in United States. The nearest listed city is Union Hill-Novelty Hill, 5.0 mi away.

Topography around Cottage Lake

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

Within 2 miles, the terrain around Cottage Lake has only modest variations in elevation — a maximum elevation change of 482 ft around an average of 351 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,627 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,799 ft.

The land around Cottage Lake is covered by trees (91%) within 2 miles, trees (71%) within 10 miles, and trees (74%) within 50 miles.

2 miles
482 ft
10 miles
1,627 ft
50 miles
7,799 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Union Hill-Novelty Hill 5.0 mi · Redmond 5.0 mi · Bothell 6.2 mi · North Creek 6.8 mi · Sammamish 6.8 mi · Inglewood-Finn Hill 7.5 mi · Kirkland 7.5 mi · Kenmore 8.1 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 Cottage Lake (47.7443°, -122.0773°, elevation 236 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. 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).