Climate Mattawa - Washington
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 41 | 47 | 58 | 66 | 75 | 82 |
| Average low in ºF Av. low Lo | 29 | 31 | 38 | 44 | 52 | 59 |
| Av. precipitation in inch Av. precip. Pre. | 1.02 | 0.67 | 0.63 | 0.53 | 0.45 | 0.45 |
| Av. snowfall in inch Snowfall Sn | 2 | 0 | 0 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 91 | 90 | 80 | 65 | 50 | 39 |
| Average low in ºF Av. low Lo | 66 | 65 | 56 | 44 | 35 | 28 |
| Av. precipitation in inch Av. precip. Pre. | 0.22 | 0.15 | 0.27 | 0.52 | 1.10 | 1.41 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 1 |
Mattawa experiences a cold semi-arid climate, characterized by very low annual precipitation. Summers are hot and dry, while winters are cold and bring occasional snowfall. The area sees a strong seasonal contrast, with most precipitation occurring during the wetter winter months.
Mattawa Climate Graph - Washington Climate Chart
Daily normals Mattawa - Washington - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 38.5 | 26.9 | 0.04 | 0.04 | 0.12 | 0.30 |
| 2 Jan | 38.6 | 27.0 | 0.08 | 0.08 | 0.20 | 0.50 |
| 3 Jan | 38.8 | 27.1 | 0.12 | 0.12 | 0.20 | 0.50 |
| 4 Jan | 38.9 | 27.2 | 0.16 | 0.16 | 0.31 | 0.80 |
| 5 Jan | 39.1 | 27.4 | 0.20 | 0.20 | 0.39 | 1.00 |
| 6 Jan | 39.2 | 27.5 | 0.20 | 0.20 | 0.51 | 1.30 |
| 7 Jan | 39.4 | 27.7 | 0.24 | 0.24 | 0.59 | 1.50 |
| 8 Jan | 39.6 | 27.8 | 0.28 | 0.28 | 0.59 | 1.50 |
| 9 Jan | 39.7 | 28.0 | 0.31 | 0.31 | 0.71 | 1.80 |
| 10 Jan | 39.9 | 28.1 | 0.35 | 0.35 | 0.79 | 2.00 |
| 11 Jan | 40.1 | 28.3 | 0.39 | 0.39 | 0.91 | 2.30 |
| 12 Jan | 40.2 | 28.4 | 0.43 | 0.43 | 0.98 | 2.50 |
| 13 Jan | 40.4 | 28.6 | 0.47 | 0.47 | 1.10 | 2.80 |
| 14 Jan | 40.6 | 28.7 | 0.51 | 0.51 | 1.18 | 3.00 |
| 15 Jan | 40.8 | 28.8 | 0.51 | 0.51 | 1.30 | 3.30 |
| 16 Jan | 40.9 | 29.0 | 0.55 | 0.55 | 1.30 | 3.30 |
| 17 Jan | 41.1 | 29.1 | 0.59 | 0.59 | 1.42 | 3.60 |
| 18 Jan | 41.3 | 29.2 | 0.63 | 0.63 | 1.50 | 3.80 |
| 19 Jan | 41.4 | 29.3 | 0.67 | 0.67 | 1.61 | 4.10 |
| 20 Jan | 41.6 | 29.5 | 0.71 | 0.71 | 1.69 | 4.30 |
| 21 Jan | 41.8 | 29.6 | 0.75 | 0.75 | 1.69 | 4.30 |
| 22 Jan | 41.9 | 29.7 | 0.75 | 0.75 | 1.81 | 4.60 |
| 23 Jan | 42.1 | 29.7 | 0.79 | 0.79 | 1.89 | 4.80 |
| 24 Jan | 42.2 | 29.8 | 0.83 | 0.83 | 1.89 | 4.80 |
| 25 Jan | 42.4 | 29.9 | 0.87 | 0.87 | 2.01 | 5.10 |
| 26 Jan | 42.5 | 30.0 | 0.87 | 0.87 | 2.01 | 5.10 |
| 27 Jan | 42.7 | 30.0 | 0.91 | 0.91 | 2.09 | 5.30 |
| 28 Jan | 42.8 | 30.1 | 0.94 | 0.94 | 2.09 | 5.30 |
| 29 Jan | 43.0 | 30.2 | 0.94 | 0.94 | 2.09 | 5.30 |
| 30 Jan | 43.2 | 30.2 | 0.98 | 0.98 | 2.20 | 5.60 |
| 31 Jan | 43.3 | 30.3 | 1.02 | 1.02 | 2.20 | 5.60 |
Weather history Mattawa - May 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 May | 75.0 | 50.0 | 0.00 | 0.00 | 0.0 |
| 02 May | 81.0 | 48.0 | 0.00 | 0.00 | 0.0 |
| 03 May | 88.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 04 May | 88.0 | 55.0 | 0.00 | 0.00 | 0.0 |
| 05 May | - | - | - | - | - |
| 06 May | - | - | - | - | - |
| 07 May | - | - | - | - | - |
| 08 May | - | - | - | - | - |
| 09 May | 81.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 10 May | 82.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 11 May | - | - | - | - | - |
| 12 May | 84.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 13 May | 80.1 | 55.9 | 0.07 | 0.00 | 0.0 |
| 14 May | 69.1 | 52.0 | 0.00 | 0.00 | 0.0 |
| 15 May | 64.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 16 May | 61.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 17 May | 72.0 | 52.0 | 0.00 | 0.00 | 0.0 |
| 18 May | 75.0 | 55.0 | 0.00 | 0.00 | 0.0 |
| 19 May | 75.9 | 57.0 | 0.00 | 0.00 | 0.0 |
| 20 May | 81.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 21 May | 81.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 22 May | 88.0 | 50.0 | 0.00 | 0.00 | 0.0 |
| 23 May | 84.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 24 May | 88.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 25 May | 82.9 | 62.1 | 0.00 | 0.00 | 0.0 |
| 26 May | 70.0 | 52.0 | 0.05 | 0.00 | 0.0 |
| 27 May | 84.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 28 May | 91.9 | 64.9 | 0.00 | 0.00 | 0.0 |
| 29 May | 80.1 | 60.1 | 0.00 | 0.00 | 0.0 |
| 30 May | 71.1 | 54.0 | 0.00 | 0.00 | 0.0 |
| 31 May | 84.9 | 59.0 | 0.00 | 0.00 | 0.0 |
Past weather Mattawa
| May 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 79.3 ºF | 41 ºF | |
| Average low temperature Av. low temp. | 55.8 ºF | 29 ºF | |
| Total precipitation Total precip. | 0.12 inch | 1.02 inch | |
| Total snowfall Total snowfall | 0.00 inch | 2 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 61.0 ºF | - | |
| Highest min temperature Highest min temp. | 64.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 46.0 ºF | - | |
Past weather May 2026 incomplete - Missing data
Geo Mattawa - Washington
| Country | United States | |
|---|---|---|
| State | Washington | |
| County | - | |
| City | Mattawa | |
| Zip Code | 99349 | |
| Longitude | -119.9 dec. degr. | |
| Latitude | 46.74 dec. degr. | |
| Altitude - Elevation | 764ft | |
| ICAO | - | |
| IATA | - |
Date and Time Mattawa - Washington
| Local Time | 12:46 AM | |
|---|---|---|
| Sunrise | 05:03 AM | |
| Sunset | 08:58 PM | |
| Day/Night | Night | |
| Timezone | Pacific Daylight Time | |
| Timezone DB | America - Los Angeles |
Map of Mattawa - Washington
USGS National Map — Open interactive map
Mattawa weather averages
| Annual high temperature | 65ºF |
| Annual low temperature | 46ºF |
| Average annual precip. | 7.42 inch |
| Av. annual snowfall | 3 inch |
Station Data
Monthly averages Mattawa
Longitude: -119.903, Latitude: 46.7379
Average weather Mattawa, WA - 99349
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...