Snoqualmie Falls, WA Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Snoqualmie Falls's primary NOAA station, SNOQUALMIE FALLS.
The climate verdict for Snoqualmie Falls
Water is the standout signal in Snoqualmie Falls, Washington: 63.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 52°F. At 53/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 52°F
- annual average temperature (NOAA normal)
- 53/100
- comfort score, above 31% of station-mapped location scores
- 63.3"
- annual precipitation · 4" snow
- 222 days
- growing season, frost-free days
Snoqualmie Falls: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00457773 · Snoqualmie Falls, WA 52°F mean · 63.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 52°F
- RANK-MID #3,293
- PHOTO-FINISH ≈ Startup
- PRCP-WET 63.3"
- SWING-NARROW 25°F
- COMF-LOW 53/100
- LOAD-HEAT 4,991 HDD
- STN-1 USC00457773
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Startup, WA ( -0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every WA station list.
- Snoqualmie Falls (this station) 52°F
- Cold Centralia, WA 52°F
- Near Startup, WA 52°F
- Near Grays Rvr Hatch…, WA 52°F
- Near Mt Vernon, WA 52°F
Climate Living Index · Snoqualmie Falls
Snoqualmie Falls: 62/100 · grade C
Snoqualmie Falls publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Snoqualmie Falls, not an official NOAA rating. Rankings still use Comfort Score 53/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Frost-free season | 222 days/year | 78/100 · B |
| Snowfall burden | 3.6 inches/year | 73/100 · B |
| Annual temperature balance | 51.7°F · 15.8° from 67.5°F | 48/100 · D |
| Precipitation balance | 63.3 in · 28.3 from 35 in | 5/100 · F |
Snoqualmie Falls · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Snoqualmie Falls is a temperate Köppen climate: Csb
Coldest-month mean 40.7°F and warmest-month mean 65.2°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 65.2°F
- Coldest month
- 40.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Snoqualmie Falls sits across the climate record
Three NOAA fields for Snoqualmie Falls's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 48th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 4% wettest
- Snoqualmie Falls's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 95%
- Warmest-to-coldest month gap for Snoqualmie Falls is compact versus 6,861 complete station-years.
How Snoqualmie Falls compares across U.S. station-mapped locations
Snoqualmie Falls's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
53 31st percentile score exceeds 31% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 46°F (8°C) | 36°F (2°C) | 41°F (5°C) | 8.6" | 1.5" | 11.1 | 0.0 |
| February | 50°F (10°C) | 35°F (2°C) | 42°F (6°C) | 5.8" | 0.2" | 11.8 | 0.0 |
| March | 54°F (12°C) | 37°F (3°C) | 45°F (7°C) | 6.7" | 0.3" | 8.4 | 0.0 |
| April | 59°F (15°C) | 40°F (5°C) | 50°F (10°C) | 5.3" | 0.0" | 2.6 | 0.0 |
| May | 64°F (18°C) | 46°F (8°C) | 55°F (13°C) | 4.0" | 0.0" | 0.2 | 0.1 |
| June | 69°F (21°C) | 51°F (10°C) | 60°F (15°C) | 3.1" | 0.0" | 0.0 | 0.4 |
| July | 76°F (24°C) | 54°F (12°C) | 65°F (18°C) | 1.2" | 0.0" | 0.0 | 1.3 |
| August | 77°F (25°C) | 54°F (12°C) | 65°F (18°C) | 1.2" | 0.0" | 0.0 | 0.7 |
| September | 70°F (21°C) | 49°F (10°C) | 60°F (15°C) | 3.0" | 0.0" | 0.0 | 0.2 |
| October | 60°F (15°C) | 44°F (6°C) | 52°F (11°C) | 6.2" | 0.0" | 2.1 | 0.0 |
| November | 51°F (11°C) | 38°F (3°C) | 45°F (7°C) | 9.5" | 0.1" | 7.5 | 0.0 |
| December | 46°F (8°C) | 36°F (2°C) | 41°F (5°C) | 8.4" | 1.5" | 10.6 | 0.0 |
The year, day by day
The calendar barely moves in Snoqualmie Falls: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 35°F near February 13 and 78°F near July 31.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 35°F around February 13.
Where the wet dates fall
The likeliest wet date is November 23, when 69% of years recorded at least a hundredth of an inch. The driest is August 3 at 17%. Summed across the calendar, that is about 185 wet dates a year.
The widest day
August 17 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Snoqualmie Falls.
Where Snoqualmie Falls Stands Nationally
This is one of the wettest normals climates ranked: about 63 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Snoqualmie Falls earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 1.5"
20.6 days with precipitation
Snow: 0.2"
16.2 days with precipitation
Snow: 0.3"
20.2 days with precipitation
18.4 days with precipitation
14.9 days with precipitation
12.8 days with precipitation
7.2 days with precipitation
5.7 days with precipitation
10.9 days with precipitation
16.6 days with precipitation
Snow: 0.1"
21.1 days with precipitation
Snow: 1.5"
19.7 days with precipitation
Snoqualmie Falls's wet season runs through the cold months
December, January and February carry 36% of the year's precipitation here, while June through August contribute 9%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 24.5°F seasonal spread.
- Wettest month
- November, 9.5"
- Driest month
- August, 1.2"
- Wettest three months
- November, January, December (42% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
How Snoqualmie Falls's precipitation splits across the calendar
About 184 days a year record measurable precipitation here, carrying 63.3" between them, or roughly 0.34 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Snow reaches Snoqualmie Falls, but rarely amounts to much
The normals record 3.6 inches of snow a year here, most likely in January. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 2 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
November 7
50% probability date
Last Spring Freeze
March 30
50% probability date
Growing Season
222 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,991
Higher = more heating needed
Cooling Degree Days
151
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Snoqualmie Falls on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (52°F here).
- Burlington, CO 52°F · 0.0°F off
- Conception, MO 52°F · 0.0°F off
- Donnellson, IA 52°F · 0.0°F off
- Dugway, UT 52°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (63.3" here), excluding temperature-peer places.
- Lumberton, TX 63.2" · 0.1" off
- New Orleans, LA 63.4" · 0.1" off
- Coalmont, TN 63.2" · 0.1" off
- Donaldsonville, LA 63.4" · 0.1" off
Data-derived climate profile
How Snoqualmie Falls's climate pattern fits together
heating led · wet · low swing
Heating is the larger measured load in Snoqualmie Falls, at 4,991 degree days versus 151 for cooling. Unlike a strongly continental record, however, its 24.5°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Snoqualmie Falls's frost-free season lasts about 222 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Snoqualmie Falls's 24.5°F seasonal spread is compact even though precipitation is abundant. August and December mark the typical warm and cold ends of the calendar. The annual average is 52°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
Alongside its heating load, Snoqualmie Falls carries 63.3 inches of precipitation in a normal year, inside PlainClimate's wet range. Annual snowfall totals 3.6 inches. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Snoqualmie Falls's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Snoqualmie Falls, not an official NOAA class or a year-ahead forecast.
Questions about Snoqualmie Falls's climate
How much rain does Snoqualmie Falls get? ▼
How much energy does heating and cooling require in Snoqualmie Falls? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Snoqualmie Falls's primary station: SNOQUALMIE FALLS (USC00457773). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Snoqualmie Falls; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Snoqualmie Falls comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.