Weather World
Tustin Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 24°F Lo 11°F | Hi 27°F Lo 13°F | Hi 41°F Lo 26°F | Hi 52°F Lo 35°F | Hi 65°F Lo 47°F | Hi 75°F Lo 58°F | Hi 79°F Lo 62°F | Hi 78°F Lo 61°F | Hi 72°F Lo 53°F | Hi 57°F Lo 42°F | Hi 43°F Lo 31°F | Hi 30°F Lo 20°F |
| 10 mph | 10 mph | 10 mph | 10 mph | 9 mph | 8 mph | 7 mph | 7 mph | 8 mph | 10 mph | 10 mph | 10 mph |
| 1.5 in | 1.6 in | 3.2 in | 4.2 in | 4.1 in | 4.8 in | 4.1 in | 3.8 in | 2.9 in | 3.6 in | 2.4 in | 2.2 in |
| 87% | 86% | 79% | 76% | 78% | 81% | 80% | 79% | 77% | 75% | 76% | 84% |
| 63% | 62% | 55% | 55% | 45% | 41% | 35% | 33% | 35% | 46% | 48% | 62% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 19 | 18 | 20 | 20 | 24 | 21 | 24 | 24 | 24 | 24 | 23 | 20 |
| 7 | 6 | 7 | 8 | 7 | 9 | 7 | 7 | 6 | 6 | 5 | 7 |
| 5 | 4 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 2 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 2 | 1 | 1 |
| 100 | 96 | 129 | 127 | 174 | 188 | 219 | 229 | 209 | 161 | 161 | 100 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi -5°C Lo -12°C | Hi -3°C Lo -10°C | Hi 5°C Lo -4°C | Hi 11°C Lo 2°C | Hi 18°C Lo 8°C | Hi 24°C Lo 14°C | Hi 26°C Lo 17°C | Hi 26°C Lo 16°C | Hi 22°C Lo 12°C | Hi 14°C Lo 6°C | Hi 6°C Lo -1°C | Hi -1°C Lo -7°C |
| 16 km/h | 16 km/h | 16 km/h | 17 km/h | 15 km/h | 13 km/h | 12 km/h | 12 km/h | 13 km/h | 16 km/h | 16 km/h | 16 km/h |
| 38 mm | 41 mm | 81 mm | 107 mm | 104 mm | 122 mm | 105 mm | 97 mm | 73 mm | 91 mm | 60 mm | 56 mm |
| 87% | 86% | 79% | 76% | 78% | 81% | 80% | 79% | 77% | 75% | 76% | 84% |
| 63% | 62% | 55% | 55% | 45% | 41% | 35% | 33% | 35% | 46% | 48% | 62% |
| 1019 mb | 1019 mb | 1018 mb | 1014 mb | 1015 mb | 1013 mb | 1014 mb | 1015 mb | 1017 mb | 1016 mb | 1018 mb | 1018 mb |
| 19 | 18 | 20 | 20 | 24 | 21 | 24 | 24 | 24 | 24 | 23 | 20 |
| 7 | 6 | 7 | 8 | 7 | 9 | 7 | 7 | 6 | 6 | 5 | 7 |
| 5 | 4 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 2 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 2 | 1 | 1 |
| 100 | 96 | 129 | 127 | 174 | 188 | 219 | 229 | 209 | 161 | 161 | 100 |
| 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.