Glenwood, WA Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Glenwood's primary NOAA station, GLENWOOD #2.
The climate verdict for Glenwood
Glenwood, Washington has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 47°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 47°F
- annual average temperature (NOAA normal)
- 59/100
- comfort score, above 37% of station-mapped location scores
- 29.8"
- annual precipitation · 65" snow
Glenwood: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00453184 · Glenwood, WA 47°F mean · 29.8" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,784
- PHOTO-FINISH ≈ Portola
- PRCP-MID 29.8"
- SWING-MID 32°F
- COMF-MID 59/100
- LOAD-HEAT 6,804 HDD
- STN-1 USC00453184
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Portola, CA (+ 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.
- Glenwood (this station) 47°F
- Cold Gerber Dam, OR 47°F
- Hot Grand Canyon Na…, AZ 47°F
- Near Portola, CA 47°F
- Near Elkins, WV 47°F
Climate Living Index · Glenwood
Glenwood: 29/100 · grade F
Glenwood publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Glenwood, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 29.8 in · 5.2 from 35 in | 81/100 · B |
| Annual temperature balance | 46.7°F · 20.8° from 67.5°F | 26/100 · F |
| Snowfall burden | 65.3 inches/year | 12/100 · F |
| Normal heat + freeze calendar | 214 calendar days | 7/100 · F |
Glenwood · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Glenwood is a continental Köppen climate: Dsb
Coldest-month mean 31.8°F and warmest-month mean 63.6°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
- 63.6°F
- Coldest month
- 31.8°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 Glenwood sits across the climate record
Three NOAA fields for Glenwood's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 74%
- Among 6,861 stations, Glenwood sits in the cooler third of annual means.
- Annual precipitation
- 40th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 88%
- Warmest-to-coldest month gap for Glenwood is compact versus 6,861 complete station-years.
How Glenwood compares across U.S. station-mapped locations
Glenwood'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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 41°F (5°C) | 24°F (-5°C) | 32°F (0°C) | 5.3" | 22.2" | 25.8 | 0.0 |
| February | 46°F (8°C) | 25°F (-4°C) | 35°F (2°C) | 3.5" | 7.1" | 23.0 | 0.0 |
| March | 52°F (11°C) | 28°F (-2°C) | 40°F (4°C) | 3.1" | 6.0" | 23.0 | 0.0 |
| April | 58°F (15°C) | 30°F (-1°C) | 44°F (7°C) | 1.3" | 0.1" | 19.2 | 0.0 |
| May | 69°F (20°C) | 36°F (2°C) | 52°F (11°C) | 1.4" | 0.0" | 12.8 | 0.5 |
| June | 74°F (24°C) | 40°F (5°C) | 57°F (14°C) | 0.6" | 0.0" | 5.3 | 0.9 |
| July | 84°F (29°C) | 44°F (6°C) | 64°F (18°C) | 0.3" | 0.0" | 1.5 | 5.4 |
| August | 84°F (29°C) | 43°F (6°C) | 63°F (17°C) | 0.5" | 0.0" | 2.3 | 5.8 |
| September | 77°F (25°C) | 36°F (2°C) | 56°F (13°C) | 0.9" | 0.0" | 11.1 | 1.1 |
| October | 63°F (17°C) | 29°F (-2°C) | 46°F (8°C) | 2.8" | 0.3" | 20.5 | 0.0 |
| November | 49°F (9°C) | 27°F (-3°C) | 38°F (3°C) | 4.2" | 6.2" | 21.9 | 0.0 |
| December | 40°F (4°C) | 24°F (-5°C) | 32°F (0°C) | 6.1" | 23.4" | 26.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 27, short of 90°F on every date, while 214 dates carry a normal low at or below freezing, the coldest 23°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 28, then returns to freezing around September 28, covering 214 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 27, when 46% of years recorded at least a hundredth of an inch. The driest is July 29 at 3%. Summed across the calendar, that is about 89 wet dates a year.
The widest day
August 1 carries the biggest normal gap between afternoon and dawn, 42°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Glenwood.
Where Glenwood Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 214 nights a year, placing this among the most frost-prone tenth of ranked stations.
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 42°F, sharper than nine in ten ranked stations see.
Glenwood earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 22.2"
13.2 days with precipitation
Snow: 7.1"
9.5 days with precipitation
Snow: 6.0"
10.6 days with precipitation
Snow: 0.1"
7.4 days with precipitation
5.9 days with precipitation
3.4 days with precipitation
1.3 days with precipitation
1.2 days with precipitation
2.9 days with precipitation
Snow: 0.3"
6.7 days with precipitation
Snow: 6.2"
11.4 days with precipitation
Snow: 23.4"
13.6 days with precipitation
Glenwood's wet season runs through the cold months
December, January and February carry 50% of the year's precipitation here, while June through August contribute 4%. 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 a 31.8°F seasonal spread.
- Wettest month
- December, 6.1"
- Driest month
- July, 0.3"
- Wettest three months
- December, January, November (52% 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 Glenwood's precipitation splits across the calendar
About 87 days a year record measurable precipitation here, carrying 29.8" 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.
Winter brings real snow to Glenwood
Glenwood averages 65.3 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 21 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: 65.3 inches of depth.
- Days recording measurable snow: about 21 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 22% 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
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,804
Higher = more heating needed
Cooling Degree Days
136
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Glenwood 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 (47°F here).
- Allison, IA 47°F · 0.0°F off
- American Falls, ID 47°F · 0.0°F off
- Cherokee, IA 47°F · 0.0°F off
- Forsyth, MT 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (29.8" here), excluding temperature-peer places.
- Walthill, NE 29.8" · 0.0" off
- Hutchinson, MN 29.8" · 0.0" off
- Litchfield, MN 29.8" · 0.0" off
- Babbitt, MN 29.8" · 0.0" off
Snow and freeze rhythm
When cold and snow define Glenwood
heating led · moderate · mid swing
Glenwood's energy balance leans toward cold weather: 6,804 annual heating degree days against 136 for cooling. Its 31.8°F seasonal range still makes the monthly rows more useful than the annual average alone.
A frost-free growing-season length is not available for Glenwood. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
-
1. Glenwood coldest normal
December
The monthly mean of 32°F (0°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Glenwood typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Glenwood snow peak
December
Glenwood averages 65.3 inches of snow a year, with December the snowiest month on the normals.
Questions about Glenwood's climate
How much snow does Glenwood get? ▼
How cold does Glenwood get in winter? ▼
How much energy does heating and cooling require in Glenwood? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Glenwood's primary station: GLENWOOD #2 (USC00453184). 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 5327225), not an incorporated municipality. Match rule for Glenwood: 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 Glenwood 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.