Climate Grand Coulee - Washington
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 33 | 40 | 51 | 61 | 71 | 78 |
| Average low in ºF Av. low Lo | 23 | 25 | 31 | 38 | 46 | 52 |
| Days with precipitation Days precip. DP | 11 | 8 | 10 | 8 | 8 | 7 |
| Av. precipitation in inch Av. precip. Pre. | 1.15 | 0.88 | 1.07 | 0.97 | 1.11 | 1.15 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 88 | 87 | 77 | 60 | 43 | 33 |
| Average low in ºF Av. low Lo | 59 | 58 | 51 | 40 | 31 | 24 |
| Days with precipitation Days precip. DP | 3 | 2 | 4 | 7 | 11 | 12 |
| Av. precipitation in inch Av. precip. Pre. | 0.49 | 0.33 | 0.36 | 0.94 | 1.20 | 1.42 |
Grand Coulee Climate Graph - Washington Climate Chart
Daily normals Grand Coulee - Washington - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 31.3 | 21.1 | 0.04 | 0.04 | 0.00 | 0.00 |
| 2 Jan | 31.4 | 21.2 | 0.08 | 0.08 | 0.00 | 0.00 |
| 3 Jan | 31.4 | 21.2 | 0.12 | 0.12 | 0.00 | 0.00 |
| 4 Jan | 31.5 | 21.3 | 0.16 | 0.16 | 0.00 | 0.00 |
| 5 Jan | 31.6 | 21.4 | 0.20 | 0.20 | 0.00 | 0.00 |
| 6 Jan | 31.8 | 21.5 | 0.24 | 0.24 | 0.00 | 0.00 |
| 7 Jan | 31.9 | 21.6 | 0.28 | 0.28 | 0.00 | 0.00 |
| 8 Jan | 32.0 | 21.7 | 0.31 | 0.31 | 0.00 | 0.00 |
| 9 Jan | 32.2 | 21.8 | 0.35 | 0.35 | 0.00 | 0.00 |
| 10 Jan | 32.3 | 22.0 | 0.39 | 0.39 | 0.00 | 0.00 |
| 11 Jan | 32.4 | 22.1 | 0.43 | 0.43 | 0.00 | 0.00 |
| 12 Jan | 32.6 | 22.2 | 0.47 | 0.47 | 0.00 | 0.00 |
Weather history Grand Coulee - December 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Dec | 27.0 | 16.0 | 0.03 | 0.51 | 1.0 |
| 02 Dec | 28.0 | 24.1 | 0.01 | 0.00 | 0.0 |
| 03 Dec | 30.0 | 26.1 | 0.00 | 0.00 | 0.0 |
| 04 Dec | 36.0 | 25.0 | 0.00 | 0.00 | 0.0 |
| 05 Dec | 36.0 | 32.0 | 0.00 | 0.00 | 0.0 |
| 06 Dec | 39.0 | 33.1 | 0.00 | 0.00 | 0.0 |
| 07 Dec | 37.9 | 34.0 | 0.33 | 0.00 | 0.0 |
| 08 Dec | 43.0 | 30.0 | 0.00 | 0.00 | 0.0 |
| 09 Dec | 39.0 | 24.1 | 0.00 | 0.00 | 0.0 |
| 10 Dec | 32.0 | 25.0 | 0.00 | 0.00 | 0.0 |
| 11 Dec | 30.9 | 27.0 | 0.10 | 0.98 | 1.0 |
| 12 Dec | 34.0 | 28.9 | 0.18 | 0.51 | 1.0 |
| 13 Dec | 34.0 | 28.9 | 0.00 | 0.00 | 0.0 |
| 14 Dec | 32.0 | 27.0 | 0.00 | 0.00 | 0.0 |
| 15 Dec | 27.0 | 24.1 | 0.00 | 0.00 | 0.0 |
| 16 Dec | 28.0 | 23.0 | 0.00 | 0.00 | 0.0 |
| 17 Dec | 32.0 | 23.0 | 0.00 | 0.00 | 0.0 |
| 18 Dec | 33.1 | 26.1 | 0.00 | 0.00 | 0.0 |
| 19 Dec | - | - | 0.02 | 0.51 | 0.0 |
| 20 Dec | 48.0 | 33.1 | 0.00 | 0.00 | 0.0 |
| 21 Dec | 48.9 | 44.1 | 0.00 | 0.00 | 0.0 |
| 22 Dec | 46.0 | 34.0 | 0.00 | 0.00 | 0.0 |
| 23 Dec | 36.0 | 33.1 | 0.00 | 0.00 | 0.0 |
| 24 Dec | 35.1 | 32.0 | 0.85 | 0.00 | 0.0 |
| 25 Dec | 34.0 | 28.0 | 0.00 | 0.00 | 0.0 |
| 26 Dec | 30.9 | 21.0 | 0.00 | 0.00 | 0.0 |
Past weather Grand Coulee
| Dec 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 35.1 ºF | 33 ºF | |
| Average low temperature Av. low temp. | 28.1 ºF | 23 ºF | |
| Total precipitation Total precip. | 1.52 inch | 1.15 inch | |
| Total snowfall Total snowfall | 2.51 inch | 0 inch | |
| Highest max temperature Highest max temp. | 48.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 27.0 ºF | - | |
| Highest min temperature Highest min temp. | 44.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 16.0 ºF | - | |
Past weather December 2019 incomplete - Missing data
Geo Grand Coulee - Washington
| Country | United States | |
|---|---|---|
| State | Washington | |
| County | - | |
| City | Grand Coulee | |
| Zip Code | 99133 | |
| Longitude | -119 dec. degr. | |
| Latitude | 47.94 dec. degr. | |
| Altitude - Elevation | 1532ft | |
| ICAO | - | |
| IATA | - |
Date and Time Grand Coulee - Washington
| Local Time | 09:24 PM | |
|---|---|---|
| Sunrise | 06:35 AM | |
| Sunset | 07:05 PM | |
| Day/Night | Night | |
| Timezone | (UTC-08:00) Pacific Time (US & Canada) | |
| Timezone DB | America - Los Angeles |
Map of Grand Coulee - Washington
Grand Coulee weather averages
| Annual high temperature | 60ºF |
| Annual low temperature | 40ºF |
| Days per year with precip. | 91 days |
| Average annual precip. | 11.07 inch |
Station Data
Monthly averages Grand Coulee
Longitude: -119.002, Latitude: 47.9397
Average weather Grand Coulee, WA - 99133
Monthly: 1991-2020 normals
History: 2008-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...