Northport, WA Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Northport's primary NOAA station, NORTHPORT.
The climate verdict for Northport
Northport, Washington has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 46°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 46°F
- annual average temperature (NOAA normal)
- 59/100
- comfort score, above 37% of station-mapped location scores
- 20.3"
- annual precipitation · 47" snow
- 146 days
- frost-free days per growing season
Northport: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00455946 · Northport, WA 46°F mean · 20.3" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,715
- PHOTO-FINISH ≈ Libby Dam
- PRCP-DRY 20.3"
- SWING-MID 42°F
- COMF-MID 59/100
- LOAD-HEAT 7,048 HDD
- STN-1 USC00455946
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Libby Dam, MT (+ 0 °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.
- Hot Heber, UT 47°F
- Northport (this station) 46°F
- Cold Lindrith, NM 46°F
- Near Libby Dam, MT 46°F
- Near Durango La Plat…, CO 46°F
Climate Living Index · Northport
Northport: 30/100 · grade F
Northport publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Northport, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 20.3 in · 14.7 from 35 in | 48/100 · D |
| Normal heat + freeze calendar | 174 calendar days | 29/100 · F |
| Annual temperature balance | 46.4°F · 21.1° from 67.5°F | 25/100 · F |
| Snowfall burden | 46.6 inches/year | 23/100 · F |
| Frost-free season | 146 days/year | 22/100 · F |
Northport · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Northport is a continental Köppen climate: Dsb
Coldest-month mean 25.8°F and warmest-month mean 68.0°F place this station in continental, dry-summer, warm summer climates (Dsb). Class Dsb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, warm summer.
- Köppen code
- Dsb
- Group
- Continental
- Warmest month
- 68.0°F
- Coldest month
- 25.8°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 Northport sits across the climate record
Three NOAA fields for Northport's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 75%
- Among 6,861 stations, Northport sits in the cooler third of annual means.
- Annual precipitation
- Drier than 72%
- Northport's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 45th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Northport compares across U.S. station-mapped locations
Northport's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 37th percentile score exceeds 37% 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
Northport's measured station temperature trend
MethodologyAcross 83 complete annual observations from 1900 to 2025, NORTHPORT warmed at a fitted rate of 0.12°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Northport primary station fitted change +0.12 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 31°F (0°C) | 21°F (-6°C) | 26°F (-3°C) | 2.2" | 15.8" | 27.4 | 0.0 |
| February | 39°F (4°C) | 22°F (-6°C) | 30°F (-1°C) | 1.3" | 5.9" | 23.0 | 0.0 |
| March | 49°F (10°C) | 27°F (-3°C) | 38°F (3°C) | 1.6" | 1.7" | 22.6 | 0.0 |
| April | 60°F (15°C) | 33°F (0°C) | 46°F (8°C) | 1.7" | 0.1" | 12.0 | 0.0 |
| May | 70°F (21°C) | 41°F (5°C) | 55°F (13°C) | 2.1" | 0.0" | 2.2 | 0.8 |
| June | 75°F (24°C) | 47°F (8°C) | 61°F (16°C) | 2.4" | 0.0" | 0.0 | 2.6 |
| July | 85°F (30°C) | 51°F (10°C) | 68°F (20°C) | 1.0" | 0.0" | 0.0 | 12.8 |
| August | 86°F (30°C) | 50°F (10°C) | 68°F (20°C) | 0.6" | 0.0" | 0.0 | 13.8 |
| September | 75°F (24°C) | 43°F (6°C) | 59°F (15°C) | 1.0" | 0.0" | 0.8 | 3.1 |
| October | 57°F (14°C) | 34°F (1°C) | 45°F (7°C) | 1.6" | 0.2" | 10.9 | 0.0 |
| November | 41°F (5°C) | 27°F (-3°C) | 34°F (1°C) | 2.2" | 5.9" | 19.1 | 0.0 |
| December | 32°F (0°C) | 22°F (-6°C) | 27°F (-3°C) | 2.5" | 17.0" | 28.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around July 30, short of 90°F on every date, while 174 dates carry a normal low at or below freezing, the coldest 20°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 13, then returns to freezing around October 23, covering 174 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is December 11, when 42% of years recorded at least a hundredth of an inch. The driest is August 11 at 12%. Summed across the calendar, that is about 108 wet dates a year.
The widest day
July 31 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Northport.
Where Northport Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 37°F, sharper than nine in ten ranked stations see.
Northport 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: 15.8"
12.1 days with precipitation
Snow: 5.9"
8.7 days with precipitation
Snow: 1.7"
9.5 days with precipitation
Snow: 0.1"
9.1 days with precipitation
10.2 days with precipitation
10.1 days with precipitation
5.3 days with precipitation
3.5 days with precipitation
5.4 days with precipitation
Snow: 0.2"
9.0 days with precipitation
Snow: 5.9"
12.0 days with precipitation
Snow: 17.0"
13.1 days with precipitation
Northport spreads its precipitation across the year
Neither half of the year dominates here: June through August take 20% of the annual total and December through February 30%, with neither reaching the 35% that would mark a distinct wet season. Northport has no dry season to plan around, though it does carry a 42.2°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 2.5" and August 0.6". The three wettest months together take 35% 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.
Northport is dry, and what does fall arrives gently
Only about 108 days a year record measurable precipitation here, 30% of the calendar, and they carry 20.3" between them. At roughly 0.19 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is December at about 13 wet days; the driest is August at about 4.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Northport
Northport averages 46.6 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 24 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 46.6 inches of depth.
- Days recording measurable snow: about 24 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 23% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 8
50% probability date
Growing Season
146 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,048
Higher = more heating needed
Cooling Degree Days
301
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WA closest to Northport 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 (46°F here).
- Bad Axe, MI 46°F · 0.0°F off
- Bridgewater, SD 46°F · 0.0°F off
- Camp Crook, SD 46°F · 0.0°F off
- Centerville, SD 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (20.3" here), excluding temperature-peer places.
- Olney, MT 20.3" · 0.0" off
- Brewster, KS 20.3" · 0.1" off
- Eureka, SD 20.3" · 0.1" off
- Richmond, UT 20.3" · 0.1" off
Snow and freeze rhythm
When cold and snow define Northport
heating led · moderate · mid swing
Northport's energy balance leans toward cold weather: 7,048 annual heating degree days against 301 for cooling. Its 42.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 146 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Northport coldest normal
January
The monthly mean of 26°F (-3°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Northport typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Northport snow peak
December
Northport averages 46.6 inches of snow a year, with December the snowiest month on the normals.
Questions about Northport's climate
How much snow does Northport get? ▼
How many days above 90°F does Northport get? ▼
How much energy does heating and cooling require in Northport? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Northport's primary station: NORTHPORT (USC00455946). 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 an incorporated place (GEOID 5350045). Match rule for Northport: 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 Northport 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.