WeatherWX.comHappy Valley Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 57°F Lo 39°F | Hi 60°F Lo 41°F | Hi 71°F Lo 50°F | Hi 79°F Lo 56°F | Hi 86°F Lo 64°F | Hi 93°F Lo 72°F | Hi 95°F Lo 75°F | Hi 96°F Lo 75°F | Hi 88°F Lo 69°F | Hi 78°F Lo 58°F | Hi 66°F Lo 48°F | Hi 58°F Lo 41°F |
| 11 mph | 12 mph | 13 mph | 13 mph | 13 mph | 12 mph | 10 mph | 10 mph | 9 mph | 11 mph | 12 mph | 11 mph |
| 1.3 in | 1.2 in | 2.1 in | 2.2 in | 4.4 in | 2.5 in | 3 in | 2.3 in | 4.3 in | 3.9 in | 1.8 in | 1.4 in |
| 52% | 54% | 52% | 52% | 58% | 55% | 50% | 47% | 56% | 56% | 57% | 56% |
| 23% | 26% | 27% | 26% | 28% | 19% | 20% | 17% | 25% | 21% | 24% | 27% |
| 30.1 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 28 | 24 | 28 | 27 | 24 | 26 | 28 | 28 | 25 | 27 | 27 | 28 |
| 2 | 2 | 2 | 3 | 7 | 4 | 3 | 3 | 5 | 4 | 2 | 2 |
| 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| 4 | 4 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 4 | 4 | 3 |
| 332 | 285 | 319 | 312 | 319 | 344 | 360 | 364 | 332 | 333 | 311 | 322 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 14°C Lo 4°C | Hi 16°C Lo 5°C | Hi 22°C Lo 10°C | Hi 26°C Lo 13°C | Hi 30°C Lo 18°C | Hi 34°C Lo 22°C | Hi 35°C Lo 24°C | Hi 35°C Lo 24°C | Hi 31°C Lo 21°C | Hi 25°C Lo 14°C | Hi 19°C Lo 9°C | Hi 15°C Lo 5°C |
| 17 km/h | 19 km/h | 20 km/h | 21 km/h | 20 km/h | 19 km/h | 16 km/h | 16 km/h | 15 km/h | 18 km/h | 19 km/h | 17 km/h |
| 34 mm | 31 mm | 52 mm | 57 mm | 112 mm | 63 mm | 77 mm | 58 mm | 110 mm | 99 mm | 47 mm | 34 mm |
| 52% | 54% | 52% | 52% | 58% | 55% | 50% | 47% | 56% | 56% | 57% | 56% |
| 23% | 26% | 27% | 26% | 28% | 19% | 20% | 17% | 25% | 21% | 24% | 27% |
| 1021 mb | 1019 mb | 1016 mb | 1012 mb | 1011 mb | 1011 mb | 1013 mb | 1013 mb | 1014 mb | 1016 mb | 1019 mb | 1019 mb |
| 28 | 24 | 28 | 27 | 24 | 26 | 28 | 28 | 25 | 27 | 27 | 28 |
| 2 | 2 | 2 | 3 | 7 | 4 | 3 | 3 | 5 | 4 | 2 | 2 |
| 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| 4 | 4 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 4 | 4 | 3 |
| 332 | 285 | 319 | 312 | 319 | 344 | 360 | 364 | 332 | 333 | 311 | 322 |
| 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.
