Three-Month Temperature Outlook Issued: August 2021 WALLA WALLA 13 ESE, OR UMATILLA County, Coop ID: 358985 Elevation: 2400 ft. Latitude: 45° 59' N Longitude: 118° 3' W SON OND NDJ DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON **R 1.0 0.9 0.9 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 1.0 99% 51.6 42.9 38.4 38.0 41.7 45.4 51.1 57.3 63.2 66.8 67.0 60.6 51.9 98% 51.1 42.3 37.7 37.3 41.0 44.9 50.6 56.8 62.8 66.5 66.6 60.2 51.4 97% 50.8 41.9 37.3 36.9 40.6 44.6 50.3 56.5 62.5 66.2 66.3 59.9 51.1 96% 50.5 41.7 37.0 36.6 40.3 44.3 50.1 56.3 62.3 66.1 66.1 59.7 50.8 95% 50.3 41.5 36.8 36.3 40.0 44.1 49.9 56.1 62.2 65.9 65.9 59.6 50.6 90% 49.6 40.7 35.9 35.4 39.1 43.4 49.3 55.5 61.6 65.5 65.4 59.0 49.9 80% 48.8 39.8 34.9 34.3 38.0 42.6 48.5 54.7 61.0 64.9 64.6 58.4 49.1 70% 48.2 39.1 34.2 33.5 37.2 42.0 48.0 54.2 60.5 64.5 64.1 57.9 48.5 60% 47.7 38.5 33.6 32.8 36.5 41.5 47.5 53.7 60.1 64.1 63.7 57.5 48.0 50% 47.2 38.0 33.0 32.2 35.9 41.0 47.1 53.3 59.7 63.8 63.3 57.1 47.5 40% 46.7 37.5 32.4 31.6 35.3 40.5 46.7 52.9 59.3 63.5 62.9 56.7 47.0 30% 46.2 36.9 31.8 30.9 34.6 40.0 46.2 52.4 58.9 63.1 62.5 56.3 46.5 20% 45.6 36.2 31.1 30.1 33.8 39.4 45.7 51.9 58.4 62.7 62.0 55.8 45.9 10% 44.8 35.3 30.1 29.0 32.7 38.6 44.9 51.1 57.8 62.1 61.2 55.2 45.1 5% 44.1 34.5 29.2 28.1 31.8 37.9 44.3 50.5 57.2 61.7 60.7 54.6 44.4 4% 43.9 34.3 29.0 27.8 31.5 37.7 44.1 50.3 57.1 61.5 60.5 54.5 44.2 3% 43.6 34.1 28.7 27.5 31.2 37.4 43.9 50.1 56.9 61.4 60.3 54.3 43.9 2% 43.3 33.7 28.3 27.1 30.8 37.1 43.6 49.8 56.6 61.1 60.0 54.0 43.6 1% 42.8 33.1 27.6 26.4 30.1 36.6 43.1 49.3 56.2 60.8 59.6 53.6 43.1 *Mean 47.2 38.0 33.0 32.2 35.9 41.0 47.1 53.3 59.7 63.8 63.3 57.1 47.5 StDev 1.9 2.1 2.3 2.5 2.5 1.9 1.7 1.7 1.5 1.3 1.6 1.5 1.9