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San Bernardino, California Weather Summary
September,
2013
| 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: | 102.3°F (39.1°C) | at 2:19PM Sep 4 | 91.4°F (33.0°C) | 92°F (34°C) |
| Low Temperature: | 53.3°F (11.8°C) | at 6:34AM Sep 28 | 65.5°F (18.6°C) | 66°F (19°C) |
| Month Average: | 77.5°F (25.3°C) | for 30 days | ||
| Normal Average: | 78°F (26°C) | |||
| Precipitation: | 0.00" (0.0 mm) | |||
| Date | High | Low | Average | Precipitation |
| September 1 | 93.4°F(34.1°C) | 74.5°F(23.6°C) | 82.8°F(28.2°C) | 0.00"(0.0 mm) |
| September 2 | 95.1°F(35.0°C) | 73.0°F(22.8°C) | 83.8°F(28.8°C) | 0.00"(0.0 mm) |
| September 3 | 98.1°F(36.7°C) | 76.6°F(24.8°C) | 86.9°F(30.5°C) | 0.00"(0.0 mm) |
| September 4 | 102.3°F(39.1°C) | 76.8°F(24.9°C) | 88.5°F(31.4°C) | 0.00"(0.0 mm) |
| September 5 | 101.5°F(38.6°C) | 79.0°F(26.1°C) | 89.9°F(32.1°C) | 0.00"(0.0 mm) |
| September 6 | 101.0°F(38.4°C) | 78.8°F(26.0°C) | 88.8°F(31.6°C) | 0.00"(0.0 mm) |
| September 7 | 101.1°F(38.4°C) | 77.2°F(25.1°C) | 87.7°F(30.9°C) | 0.00"(0.0 mm) |
| September 8 | 96.1°F(35.6°C) | 73.8°F(23.2°C) | 83.9°F(28.8°C) | 0.00"(0.0 mm) |
| September 9 | 91.0°F(32.8°C) | 72.1°F(22.3°C) | 80.4°F(26.9°C) | 0.00"(0.0 mm) |
| September 10 | 88.7°F(31.5°C) | 63.3°F(17.4°C) | 75.0°F(23.9°C) | 0.00"(0.0 mm) |
| September 11 | 88.1°F(31.2°C) | 61.8°F(16.6°C) | 73.1°F(22.8°C) | 0.00"(0.0 mm) |
| September 12 | 94.6°F(34.8°C) | 62.9°F(17.2°C) | 77.9°F(25.5°C) | 0.00"(0.0 mm) |
| September 13 | 96.0°F(35.5°C) | 64.4°F(18.0°C) | 80.5°F(27.0°C) | 0.00"(0.0 mm) |
| September 14 | 98.4°F(36.9°C) | 68.3°F(20.2°C) | 83.7°F(28.7°C) | 0.00"(0.0 mm) |
| September 15 | 100.4°F(38.0°C) | 69.6°F(20.9°C) | 83.9°F(28.8°C) | 0.00"(0.0 mm) |
| September 16 | 100.4°F(38.0°C) | 68.5°F(20.3°C) | 83.4°F(28.6°C) | 0.00"(0.0 mm) |
| September 17 | 90.0°F(32.2°C) | 64.0°F(17.8°C) | 76.3°F(24.6°C) | 0.00"(0.0 mm) |
| September 18 | 85.0°F(29.4°C) | 58.8°F(14.9°C) | 69.9°F(21.0°C) | 0.00"(0.0 mm) |
| September 19 | 87.8°F(31.0°C) | 60.8°F(16.0°C) | 72.2°F(22.3°C) | 0.00"(0.0 mm) |
| September 20 | 80.0°F(26.7°C) | 62.3°F(16.8°C) | 68.0°F(20.0°C) | 0.00"(0.0 mm) |
| September 21 | 79.9°F(26.6°C) | 62.7°F(17.0°C) | 68.4°F(20.2°C) | 0.00"(0.0 mm) |
| September 22 | 78.9°F(26.1°C) | 59.2°F(15.1°C) | 67.7°F(19.8°C) | 0.00"(0.0 mm) |
| September 23 | 94.8°F(34.9°C) | 58.1°F(14.5°C) | 76.2°F(24.5°C) | 0.00"(0.0 mm) |
| September 24 | 89.6°F(32.0°C) | 61.6°F(16.4°C) | 75.8°F(24.3°C) | 0.00"(0.0 mm) |
| September 25 | 81.3°F(27.4°C) | 58.7°F(14.8°C) | 68.9°F(20.5°C) | 0.00"(0.0 mm) |
| September 26 | 75.1°F(23.9°C) | 59.2°F(15.1°C) | 64.7°F(18.2°C) | 0.00"(0.0 mm) |
| September 27 | 83.5°F(28.6°C) | 54.3°F(12.4°C) | 69.5°F(20.8°C) | 0.00"(0.0 mm) |
| September 28 | 90.2°F(32.3°C) | 53.3°F(11.8°C) | 72.3°F(22.4°C) | 0.00"(0.0 mm) |
| September 29 | 89.1°F(31.7°C) | 55.7°F(13.2°C) | 72.9°F(22.7°C) | 0.00"(0.0 mm) |
| September 30 | 89.5°F(31.9°C) | 56.0°F(13.3°C) | 72.6°F(22.5°C) | 0.00"(0.0 mm) |