Weather World
The Dalles High School Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 41°F Lo 29°F | Hi 44°F Lo 30°F | Hi 51°F Lo 34°F | Hi 59°F Lo 39°F | Hi 69°F Lo 46°F | Hi 77°F Lo 52°F | Hi 87°F Lo 59°F | Hi 86°F Lo 59°F | Hi 77°F Lo 53°F | Hi 62°F Lo 43°F | Hi 49°F Lo 34°F | Hi 41°F Lo 29°F |
| 4 mph | 5 mph | 5 mph | 6 mph | 7 mph | 7 mph | 7 mph | 6 mph | 5 mph | 5 mph | 4 mph | 4 mph |
| 4.3 in | 3.3 in | 2.9 in | 1.8 in | 1.2 in | 0.6 in | 0.1 in | 0.2 in | 0.8 in | 2.2 in | 3.4 in | 5.1 in |
| 86% | 84% | 78% | 69% | 63% | 57% | 49% | 50% | 56% | 67% | 79% | 86% |
| 55% | 53% | 47% | 38% | 29% | 20% | 9% | 11% | 20% | 33% | 46% | 56% |
| 30.2 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 18 | 16 | 22 | 25 | 27 | 28 | 31 | 30 | 28 | 25 | 21 | 17 |
| 9 | 9 | 7 | 4 | 4 | 2 | 0 | 1 | 2 | 6 | 8 | 10 |
| 4 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
| 2 | 1 | 3 | 3 | 4 | 6 | 6 | 5 | 4 | 2 | 2 | 1 |
| 126 | 119 | 146 | 191 | 235 | 269 | 324 | 339 | 282 | 212 | 153 | 124 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 5°C Lo -2°C | Hi 7°C Lo -1°C | Hi 11°C Lo 1°C | Hi 15°C Lo 4°C | Hi 20°C Lo 8°C | Hi 25°C Lo 11°C | Hi 30°C Lo 15°C | Hi 30°C Lo 15°C | Hi 25°C Lo 12°C | Hi 17°C Lo 6°C | Hi 9°C Lo 1°C | Hi 5°C Lo -2°C |
| 7 km/h | 8 km/h | 8 km/h | 10 km/h | 11 km/h | 12 km/h | 12 km/h | 10 km/h | 9 km/h | 7 km/h | 7 km/h | 7 km/h |
| 109 mm | 84 mm | 72 mm | 45 mm | 31 mm | 15 mm | 2 mm | 5 mm | 19 mm | 57 mm | 86 mm | 129 mm |
| 86% | 84% | 78% | 69% | 63% | 57% | 49% | 50% | 56% | 67% | 79% | 86% |
| 55% | 53% | 47% | 38% | 29% | 20% | 9% | 11% | 20% | 33% | 46% | 56% |
| 1022 mb | 1019 mb | 1017 mb | 1017 mb | 1016 mb | 1015 mb | 1015 mb | 1014 mb | 1015 mb | 1017 mb | 1019 mb | 1020 mb |
| 18 | 16 | 22 | 25 | 27 | 28 | 31 | 30 | 28 | 25 | 21 | 17 |
| 9 | 9 | 7 | 4 | 4 | 2 | 0 | 1 | 2 | 6 | 8 | 10 |
| 4 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
| 2 | 1 | 3 | 3 | 4 | 6 | 6 | 5 | 4 | 2 | 2 | 1 |
| 126 | 119 | 146 | 191 | 235 | 269 | 324 | 339 | 282 | 212 | 153 | 124 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.