Weather World
Grossman Slough Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 19°F Lo 4°F | Hi 23°F Lo 7°F | Hi 38°F Lo 23°F | Hi 52°F Lo 35°F | Hi 67°F Lo 48°F | Hi 77°F Lo 58°F | Hi 82°F Lo 63°F | Hi 80°F Lo 60°F | Hi 74°F Lo 54°F | Hi 56°F Lo 41°F | Hi 40°F Lo 27°F | Hi 25°F Lo 13°F |
| 10 mph | 10 mph | 11 mph | 11 mph | 10 mph | 9 mph | 8 mph | 8 mph | 10 mph | 11 mph | 10 mph | 10 mph |
| 0.7 in | 0.9 in | 2.1 in | 3.6 in | 4.5 in | 5.8 in | 5.3 in | 4.6 in | 2.9 in | 3.1 in | 1.5 in | 1.5 in |
| 90% | 87% | 81% | 69% | 67% | 74% | 73% | 70% | 65% | 66% | 73% | 85% |
| 65% | 62% | 60% | 53% | 43% | 39% | 30% | 31% | 30% | 41% | 48% | 63% |
| 30.2 in | 30.2 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in |
| 20 | 20 | 22 | 21 | 23 | 22 | 24 | 24 | 25 | 25 | 24 | 19 |
| 7 | 5 | 5 | 7 | 8 | 8 | 7 | 7 | 5 | 5 | 4 | 7 |
| 4 | 3 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 5 |
| 1 | 1 | 2 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 2 |
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 5 | 4 | 2 | 1 | 1 |
| 86 | 89 | 106 | 137 | 166 | 180 | 223 | 243 | 231 | 188 | 155 | 101 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi -7°C Lo -15°C | Hi -5°C Lo -14°C | Hi 4°C Lo -5°C | Hi 11°C Lo 2°C | Hi 19°C Lo 9°C | Hi 25°C Lo 15°C | Hi 28°C Lo 17°C | Hi 27°C Lo 16°C | Hi 23°C Lo 12°C | Hi 14°C Lo 5°C | Hi 5°C Lo -3°C | Hi -4°C Lo -11°C |
| 16 km/h | 16 km/h | 17 km/h | 18 km/h | 16 km/h | 14 km/h | 13 km/h | 13 km/h | 15 km/h | 17 km/h | 17 km/h | 16 km/h |
| 19 mm | 22 mm | 53 mm | 91 mm | 115 mm | 148 mm | 134 mm | 118 mm | 74 mm | 80 mm | 38 mm | 39 mm |
| 90% | 87% | 81% | 69% | 67% | 74% | 73% | 70% | 65% | 66% | 73% | 85% |
| 65% | 62% | 60% | 53% | 43% | 39% | 30% | 31% | 30% | 41% | 48% | 63% |
| 1021 mb | 1021 mb | 1018 mb | 1014 mb | 1014 mb | 1011 mb | 1013 mb | 1013 mb | 1015 mb | 1015 mb | 1018 mb | 1019 mb |
| 20 | 20 | 22 | 21 | 23 | 22 | 24 | 24 | 25 | 25 | 24 | 19 |
| 7 | 5 | 5 | 7 | 8 | 8 | 7 | 7 | 5 | 5 | 4 | 7 |
| 4 | 3 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 5 |
| 1 | 1 | 2 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 2 |
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 5 | 4 | 2 | 1 | 1 |
| 86 | 89 | 106 | 137 | 166 | 180 | 223 | 243 | 231 | 188 | 155 | 101 |
| 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.