Glenwood, Washington climate: Normal weather by month, frost dates and records
Glenwood's normal year runs from 24°F December nights to 84°F July afternoons, with 29.8 inches of precipitation and 65 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, December lows of −5°C, July highs of 29°C, 757 mm of precipitation a year.
- NOAA stationGlenwood #2
- Station IDUSC00453184
- Location46.01°N 121.26°W
- Elevation1,902 ft (580 m)
- Population (census place)246
On October 23, the normal high in Glenwood is 60°F and the normal low 28°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Glenwood.
- Jan 41° 24°
- Feb 46° 25°
- Mar 52° 28°
- Apr 58° 30°
- May 69° 36°
- Jun 74° 40°
- Jul 84° 44°
- Aug 84° 43°
- Sep 77° 36°
- Oct 63° 29°
- Nov 49° 27°
- Dec 40° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Glenwood each month?
July is the warmest month, with normal highs of 84°F; December the coldest, with normal lows of 24°F. The most precipitation falls in December (6.09 in), the least in July (0.27 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 41°F | 24°F | 32.4°F | 5.25 | 22.2 | 13 | <1 | 26 | 9 h |
| February | 46°F | 25°F | 35.4°F | 3.50 | 7.1 | 10 | <1 | 23 | 10 h 20 min |
| March | 52°F | 28°F | 39.9°F | 3.08 | 6.0 | 11 | <1 | 23 | 11 h 50 min |
| April | 58°F | 30°F | 44.3°F | 1.28 | 0.1 | 7 | <1 | 19 | 13 h 30 min |
| May | 69°F | 36°F | 52.2°F | 1.41 | 0.0 | 6 | 1 | 13 | 14 h 50 min |
| June | 74°F | 40°F | 57.3°F | 0.58 | 0.0 | 3 | 1 | 5 | 15 h 40 min |
| July | 84°F | 44°F | 63.6°F | 0.27 | 0.0 | 1 | 5 | 2 | 15 h 30 min |
| August | 84°F | 43°F | 63.3°F | 0.46 | 0.0 | 1 | 6 | 2 | 14 h 10 min |
| September | 77°F | 36°F | 56.0°F | 0.91 | 0.0 | 3 | 1 | 11 | 12 h 40 min |
| October | 63°F | 29°F | 45.9°F | 2.79 | 0.3 | 7 | <1 | 21 | 11 h |
| November | 49°F | 27°F | 37.8°F | 4.18 | 6.2 | 11 | <1 | 22 | 9 h 30 min |
| December | 40°F | 24°F | 31.8°F | 6.09 | 23.4 | 14 | <1 | 27 | 8 h 40 min |
| Year (annual) | 61°F | 32°F | 46.7°F | 29.80 | 65.3 | 87 | 14 | 193 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −5°C | 0.2°C | 133 mm | 56 cm |
| February | 8°C | −4°C | 1.9°C | 89 mm | 18 cm |
| March | 11°C | −2°C | 4.4°C | 78 mm | 15 cm |
| April | 15°C | −1°C | 6.8°C | 33 mm | 0 cm |
| May | 20°C | 2°C | 11.2°C | 36 mm | 0 cm |
| June | 24°C | 5°C | 14.1°C | 15 mm | 0 cm |
| July | 29°C | 6°C | 17.6°C | 7 mm | 0 cm |
| August | 29°C | 6°C | 17.4°C | 12 mm | 0 cm |
| September | 25°C | 2°C | 13.3°C | 23 mm | 0 cm |
| October | 17°C | −2°C | 7.7°C | 71 mm | 1 cm |
| November | 9°C | −3°C | 3.2°C | 106 mm | 16 cm |
| December | 4°C | −5°C | −0.1°C | 155 mm | 59 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00453184; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Glenwood?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August has the fewest days with rain (1).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00453184.
How hot and how cold does it get in Glenwood?
In a normal year in Glenwood, 14 days a year reach 90°F, 193 nights fall to 32°F or colder and 87 days bring measurable precipitation.
- Days at 90°F or more
- 14a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 193a normal year
- Days that stay below freezing
- 15high of 32°F or less
- Days with 0.01 inch of precipitation
- 87a normal year
- Days with 1 inch of snow or more
- 17a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00453184.
How sunny is Glenwood?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Glenwood, 4.1 kWh per square metre a day. July is the sunniest month (90%) and December the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.3 |
| February | 67% | 2.3 |
| March | 67% | 3.4 |
| April | 73% | 5.0 |
| May | 75% | 6.0 |
| June | 79% | 6.8 |
| July | 90% | 7.5 |
| August | 89% | 6.3 |
| September | 84% | 4.6 |
| October | 74% | 2.8 |
| November | 63% | 1.5 |
| December | 56% | 1.0 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Glenwood need?
A normal year in Glenwood brings 6,804 heating degree days, 27% more than the median U.S. place (5,373), and 136 cooling degree days, 85% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,451 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,011 | 0 |
| February | 829 | 0 |
| March | 777 | 0 |
| April | 621 | 0 |
| May | 400 | 3 |
| June | 245 | 13 |
| July | 102 | 59 |
| August | 107 | 54 |
| September | 276 | 7 |
| October | 591 | 0 |
| November | 816 | 0 |
| December | 1,031 | 0 |
| Year (annual) | 6,804 | 136 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00453184. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Glenwood's climate compare?
Glenwood is warmer than 12 of the other 95 places with their own NOAA record in Washington, and wetter than 52. Across the 7,247 U.S. stations with normals, its annual mean of 46.7°F is warmer than 26%.
In the Köppen classification computed from these normals, Glenwood is Dsb: continental, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Glenwood's climate
What is the coldest month in Glenwood?
December, with a normal high of 40°F and a normal low of 24°F. The warmest is July (84°F by day, 44°F at night).
Does it snow in Glenwood?
Yes: 65 inches in a normal year, falling on 21 days with 0.1 inch or more, the most in December (23.4 inches).
What is the rainiest month in Glenwood?
December, with 6.09 in of precipitation in a normal year; the driest is July with 0.27 in.
What plant hardiness zone is Glenwood in?
The USDA's 2023 map puts Glenwood in zone 7a in ZIP code 98619, the nearest ZIP area.
Nearby and next
- Washington climateThe statewide normals and every place in the state
- Mount Adams Ranger Station, WA13 miles from this station, 47.8°F a year
- Snowden, WA14 miles from this station, 46.5°F a year
- Goldendale, WA24 miles from this station, 48.0°F a year
- Hood River Experiment Station, OR25 miles from this station, 51.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made