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San Bernardino, California Weather Summary
September,
2014
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 |
| Extremes | Average | Normal | ||
| High Temperature: | 106.2°F (41.2°C) | at 3:25PM Sep 15 | 93.3°F (34.1°C) | 92°F (34°C) |
| Low Temperature: | 59.7°F (15.4°C) | at 7:08AM Sep 29 | 67.6°F (19.8°C) | 66°F (19°C) |
| Month Average: | 79.7°F (26.5°C) | for 30 days | ||
| Normal Average: | 78°F (26°C) | |||
| Precipitation: | 1.35" (34.2 mm) | |||
| Date | High | Low | Average | Precipitation |
| September 1 | 96.9°F(36.1°C) | 67.2°F(19.5°C) | 81.8°F(27.7°C) | 0.00"(0.0 mm) |
| September 2 | 96.1°F(35.6°C) | 63.7°F(17.6°C) | 77.7°F(25.4°C) | 0.00"(0.0 mm) |
| September 3 | 91.1°F(32.8°C) | 65.5°F(18.6°C) | 76.2°F(24.6°C) | 0.00"(0.0 mm) |
| September 4 | 88.8°F(31.5°C) | 64.9°F(18.3°C) | 74.0°F(23.3°C) | 0.00"(0.0 mm) |
| September 5 | 98.0°F(36.7°C) | 63.0°F(17.2°C) | 79.4°F(26.4°C) | 0.00"(0.0 mm) |
| September 6 | 99.7°F(37.6°C) | 68.9°F(20.5°C) | 84.1°F(28.9°C) | 0.00"(0.0 mm) |
| September 7 | 97.4°F(36.3°C) | 75.9°F(24.4°C) | 84.4°F(29.1°C) | 1.34"(34.0 mm) |
| September 8 | 87.2°F(30.6°C) | 72.3°F(22.4°C) | 79.1°F(26.1°C) | 0.01"(0.2 mm) |
| September 9 | 91.1°F(32.8°C) | 70.8°F(21.5°C) | 80.5°F(26.9°C) | 0.00"(0.0 mm) |
| September 10 | 98.4°F(36.9°C) | 63.2°F(17.4°C) | 81.0°F(27.2°C) | 0.00"(0.0 mm) |
| September 11 | 98.4°F(36.9°C) | 68.0°F(20.0°C) | 83.3°F(28.5°C) | 0.00"(0.0 mm) |
| September 12 | 101.8°F(38.8°C) | 68.9°F(20.5°C) | 85.0°F(29.5°C) | 0.00"(0.0 mm) |
| September 13 | 103.6°F(39.8°C) | 70.9°F(21.6°C) | 87.6°F(30.9°C) | 0.00"(0.0 mm) |
| September 14 | 105.6°F(40.9°C) | 74.8°F(23.8°C) | 90.7°F(32.6°C) | 0.00"(0.0 mm) |
| September 15 | 106.2°F(41.2°C) | 77.3°F(25.2°C) | 91.7°F(33.2°C) | 0.00"(0.0 mm) |
| September 16 | 104.5°F(40.3°C) | 77.9°F(25.5°C) | 90.7°F(32.6°C) | 0.00"(0.0 mm) |
| September 17 | 97.7°F(36.5°C) | 79.1°F(26.2°C) | 87.9°F(31.1°C) | 0.00"(0.0 mm) |
| September 18 | 85.8°F(29.9°C) | 68.5°F(20.3°C) | 76.8°F(24.9°C) | 0.00"(0.0 mm) |
| September 19 | 85.4°F(29.6°C) | 66.7°F(19.3°C) | 73.9°F(23.3°C) | 0.00"(0.0 mm) |
| September 20 | 82.4°F(28.0°C) | 64.7°F(18.1°C) | 72.2°F(22.3°C) | 0.00"(0.0 mm) |
| September 21 | 85.4°F(29.6°C) | 63.7°F(17.6°C) | 71.9°F(22.1°C) | 0.00"(0.0 mm) |
| September 22 | 91.5°F(33.1°C) | 62.6°F(17.0°C) | 76.5°F(24.7°C) | 0.00"(0.0 mm) |
| September 23 | 97.0°F(36.1°C) | 63.0°F(17.2°C) | 79.9°F(26.6°C) | 0.00"(0.0 mm) |
| September 24 | 97.8°F(36.6°C) | 66.7°F(19.3°C) | 83.0°F(28.3°C) | 0.00"(0.0 mm) |
| September 25 | 96.1°F(35.6°C) | 70.8°F(21.5°C) | 82.9°F(28.3°C) | 0.00"(0.0 mm) |
| September 26 | 87.3°F(30.7°C) | 65.6°F(18.7°C) | 76.8°F(24.9°C) | 0.00"(0.0 mm) |
| September 27 | 77.8°F(25.4°C) | 62.1°F(16.7°C) | 68.0°F(20.0°C) | 0.00"(0.0 mm) |
| September 28 | 78.4°F(25.8°C) | 61.5°F(16.4°C) | 67.7°F(19.9°C) | 0.00"(0.0 mm) |
| September 29 | 82.7°F(28.2°C) | 59.7°F(15.4°C) | 71.0°F(21.6°C) | 0.00"(0.0 mm) |
| September 30 | 89.2°F(31.8°C) | 59.9°F(15.5°C) | 74.6°F(23.6°C) | 0.00"(0.0 mm) |