Weather World
Great Western Reservoir Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 40°F Lo 18°F | Hi 42°F Lo 19°F | Hi 52°F Lo 27°F | Hi 59°F Lo 33°F | Hi 67°F Lo 42°F | Hi 82°F Lo 54°F | Hi 87°F Lo 59°F | Hi 86°F Lo 58°F | Hi 79°F Lo 52°F | Hi 64°F Lo 38°F | Hi 52°F Lo 28°F | Hi 42°F Lo 20°F |
| 6 mph | 6 mph | 6 mph | 6 mph | 6 mph | 6 mph | 6 mph | 6 mph | 5 mph | 6 mph | 5 mph | 5 mph |
| 0.9 in | 1.2 in | 2.2 in | 3 in | 4.6 in | 2.3 in | 2.1 in | 1.3 in | 1.6 in | 1.4 in | 1.1 in | 0.9 in |
| 63% | 64% | 55% | 52% | 53% | 42% | 43% | 41% | 40% | 46% | 50% | 58% |
| 25% | 26% | 28% | 30% | 32% | 22% | 23% | 21% | 18% | 19% | 20% | 23% |
| 30.1 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 22 | 19 | 21 | 19 | 20 | 22 | 22 | 25 | 26 | 25 | 24 | 23 |
| 5 | 5 | 5 | 7 | 10 | 8 | 9 | 6 | 4 | 4 | 3 | 5 |
| 4 | 4 | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 2 | 3 | 3 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 3 | 2 | 1 |
| 267 | 239 | 256 | 242 | 234 | 278 | 290 | 301 | 297 | 291 | 288 | 281 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 5°C Lo -8°C | Hi 6°C Lo -7°C | Hi 11°C Lo -3°C | Hi 15°C Lo 1°C | Hi 20°C Lo 5°C | Hi 28°C Lo 12°C | Hi 30°C Lo 15°C | Hi 30°C Lo 15°C | Hi 26°C Lo 11°C | Hi 18°C Lo 4°C | Hi 11°C Lo -2°C | Hi 6°C Lo -7°C |
| 9 km/h | 9 km/h | 10 km/h | 10 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h |
| 22 mm | 30 mm | 55 mm | 76 mm | 117 mm | 59 mm | 53 mm | 33 mm | 40 mm | 35 mm | 29 mm | 22 mm |
| 63% | 64% | 55% | 52% | 53% | 42% | 43% | 41% | 40% | 46% | 50% | 58% |
| 25% | 26% | 28% | 30% | 32% | 22% | 23% | 21% | 18% | 19% | 20% | 23% |
| 1021 mb | 1018 mb | 1015 mb | 1012 mb | 1012 mb | 1012 mb | 1015 mb | 1015 mb | 1016 mb | 1016 mb | 1018 mb | 1019 mb |
| 22 | 19 | 21 | 19 | 20 | 22 | 22 | 25 | 26 | 25 | 24 | 23 |
| 5 | 5 | 5 | 7 | 10 | 8 | 9 | 6 | 4 | 4 | 3 | 5 |
| 4 | 4 | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 2 | 3 | 3 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 3 | 2 | 1 |
| 267 | 239 | 256 | 242 | 234 | 278 | 290 | 301 | 297 | 291 | 288 | 281 |
| 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.