Startup, WA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Startup's primary NOAA station, STARTUP 1 E.
The climate verdict for Startup
Water is the standout signal in Startup, Washington: 68.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 52°F. At 45/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 16% of scores.
- 52°F
- annual average temperature (NOAA normal)
- 45/100
- comfort score, above 16% of station-mapped location scores
- 68.3"
- precipitation, annual total
- 193 days
- frost-free days per growing season
Startup: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00458034 · Startup, WA 52°F mean · 68.3" 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 #3,225
- PHOTO-FINISH ≈ Snoqualmie Falls
- PRCP-WET 68.3"
- SWING-NARROW 25°F
- COMF-LOW 45/100
- LOAD-HEAT 5,024 HDD
- STN-1 USC00458034
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Snoqualmie Falls, 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.
- Startup (this station) 52°F
- Hot Snoqualmie Falls, WA 52°F
- Near Centralia, WA 52°F
- Cold Shelton Sanders…, WA 51°F
- Near Everett Snohomi…, WA 51°F
Climate Living Index · Startup
Startup: 57/100 · grade C
Startup publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Startup, not an official NOAA rating. Rankings still use Comfort Score 45/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Frost-free season | 193 days/year | 59/100 · C |
| Annual temperature balance | 51.6°F · 15.9° from 67.5°F | 47/100 · D |
| Precipitation balance | 68.3 in · 33.3 from 35 in | 0/100 · F |
Startup · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Startup is a temperate Köppen climate: Csb
Coldest-month mean 40.0°F and warmest-month mean 64.9°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
- 64.9°F
- Coldest month
- 40.0°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 Startup sits across the climate record
Three NOAA fields for Startup's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 47th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 2% wettest
- Startup's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 94%
- Warmest-to-coldest month gap for Startup is compact versus 6,861 complete station-years.
How Startup compares across U.S. station-mapped locations
Startup's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
45 16th percentile score exceeds 16% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 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
Startup's measured station temperature trend
MethodologyAcross 63 complete annual observations from 1925 to 2025, STARTUP 1 E warmed at a fitted rate of 0.13°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Startup primary station fitted change +0.13 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 47°F (9°C) | 34°F (1°C) | 41°F (5°C) | 8.9" | 12.1 | 0.0 |
| February | 51°F (10°C) | 34°F (1°C) | 42°F (6°C) | 5.9" | 10.7 | 0.0 |
| March | 55°F (13°C) | 36°F (2°C) | 45°F (7°C) | 6.8" | 7.3 | 0.0 |
| April | 60°F (16°C) | 39°F (4°C) | 50°F (10°C) | 5.9" | 2.0 | 0.0 |
| May | 67°F (19°C) | 44°F (7°C) | 56°F (13°C) | 5.0" | 0.3 | 0.1 |
| June | 71°F (22°C) | 49°F (9°C) | 60°F (15°C) | 3.8" | 0.0 | 0.6 |
| July | 78°F (25°C) | 52°F (11°C) | 65°F (18°C) | 1.5" | 0.0 | 2.3 |
| August | 78°F (26°C) | 51°F (11°C) | 65°F (18°C) | 1.7" | 0.0 | 1.6 |
| September | 73°F (23°C) | 47°F (8°C) | 60°F (16°C) | 3.5" | 0.0 | 0.6 |
| October | 62°F (17°C) | 42°F (5°C) | 52°F (11°C) | 7.1" | 2.4 | 0.0 |
| November | 52°F (11°C) | 37°F (3°C) | 45°F (7°C) | 9.8" | 7.2 | 0.0 |
| December | 47°F (8°C) | 34°F (1°C) | 40°F (4°C) | 8.4" | 11.1 | 0.0 |
The year, day by day
The calendar barely moves in Startup: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 33°F near December 20 and 80°F near July 29.
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 33°F around December 20.
Where the wet dates fall
The likeliest wet date is November 16, when 66% of years recorded at least a hundredth of an inch. The driest is August 1 at 18%. Summed across the calendar, that is about 186 wet dates a year.
The widest day
August 5 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Startup.
Where Startup Stands Nationally
This is one of the wettest normals climates ranked: about 68 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Startup 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
19.8 days with precipitation
16.9 days with precipitation
20.0 days with precipitation
18.4 days with precipitation
15.3 days with precipitation
14.1 days with precipitation
6.8 days with precipitation
6.5 days with precipitation
10.9 days with precipitation
17.2 days with precipitation
20.3 days with precipitation
19.7 days with precipitation
Startup spreads its precipitation across the year
Neither half of the year dominates here: June through August take 10% of the annual total and December through February 34%, with neither reaching the 35% that would mark a distinct wet season. Startup has no dry season to plan around, though it does carry an unusually narrow 24.9°F seasonal spread.
The gap between the wettest and driest month still matters: November averages 9.8" and July 1.5". The three wettest months together take 40% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Startup, it arrives in quantity
68.3" of precipitation falls across only about 186 wet days here, averaging 0.37 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 186 a year, 51% of all days
- Average depth per wet day
- 0.37 inches
- Most wet days
- November, about 20
- Fewest wet days
- August, about 7
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
October 25
50% probability date
Last Spring Freeze
April 15
50% probability date
Growing Season
193 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,024
Higher = more heating needed
Cooling Degree Days
147
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Startup 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).
- Amity, MO 52°F · 0.0°F off
- Carmel, IN 52°F · 0.0°F off
- Eau Claire, MI 52°F · 0.0°F off
- Fairbury, NE 52°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (68.3" here), excluding temperature-peer places.
- Fort Lauderdale, FL 68.8" · 0.5" off
- Pensacola, FL 67.8" · 0.5" off
- Robertsdale, AL 69.0" · 0.7" off
- Miami, FL 67.4" · 0.9" off
Data-derived climate profile
How Startup's climate pattern fits together
heating led · wet · low swing
Heating is the larger measured load in Startup, at 5,024 degree days versus 147 for cooling. Unlike a strongly continental record, however, its 24.9°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Startup's frost-free season lasts about 193 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Startup's 24.9°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, Startup carries 68.3 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. 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 Startup'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 Startup, not an official NOAA class or a year-ahead forecast.
Questions about Startup's climate
How much rain does Startup get? ▼
How much energy does heating and cooling require in Startup? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Startup's primary station: STARTUP 1 E (USC00458034). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 5367595), not an incorporated municipality. Match rule for Startup: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Startup 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.