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San Bernardino, California Weather Summary
May,
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 | 31 |
| Extremes | Average | Normal | ||
| High Temperature: | 100.1°F (37.8°C) | at 3:10PM May 12 | 82.8°F (28.2°C) | 80°F (26°C) |
| Low Temperature: | 52.1°F (11.2°C) | at 5:52AM May 9 | 58.8°F (14.9°C) | 57°F (14°C) |
| Month Average: | 69.7°F (20.9°C) | for 31 days | ||
| Normal Average: | 67°F (20°C) | |||
| Precipitation: | 0.14" (3.5 mm) | |||
| Date | High | Low | Average | Precipitation |
| May 1 | 91.9°F(33.3°C) | 59.3°F(15.2°C) | 71.2°F(21.8°C) | 0.00"(0.0 mm) |
| May 2 | 89.5°F(31.9°C) | 57.3°F(14.1°C) | 76.5°F(24.7°C) | 0.06"(1.5 mm) |
| May 3 | 95.0°F(35.0°C) | 57.9°F(14.4°C) | 77.4°F(25.2°C) | 0.00"(0.0 mm) |
| May 4 | 83.7°F(28.7°C) | 56.6°F(13.7°C) | 69.0°F(20.6°C) | 0.00"(0.0 mm) |
| May 5 | 67.4°F(19.7°C) | 57.6°F(14.2°C) | 61.5°F(16.4°C) | 0.00"(0.0 mm) |
| May 6 | 63.7°F(17.6°C) | 55.8°F(13.2°C) | 59.4°F(15.2°C) | 0.07"(1.7 mm) |
| May 7 | 69.0°F(20.6°C) | 55.6°F(13.1°C) | 60.8°F(16.0°C) | 0.01"(0.2 mm) |
| May 8 | 70.1°F(21.2°C) | 57.0°F(13.9°C) | 62.1°F(16.7°C) | 0.00"(0.0 mm) |
| May 9 | 76.6°F(24.8°C) | 52.1°F(11.2°C) | 63.2°F(17.3°C) | 0.00"(0.0 mm) |
| May 10 | 84.9°F(29.4°C) | 57.7°F(14.3°C) | 70.0°F(21.1°C) | 0.00"(0.0 mm) |
| May 11 | 97.9°F(36.6°C) | 60.3°F(15.7°C) | 78.5°F(25.8°C) | 0.00"(0.0 mm) |
| May 12 | 100.1°F(37.8°C) | 65.3°F(18.5°C) | 84.4°F(29.1°C) | 0.00"(0.0 mm) |
| May 13 | 99.8°F(37.7°C) | 67.8°F(19.9°C) | 85.9°F(30.0°C) | 0.00"(0.0 mm) |
| May 14 | 88.7°F(31.5°C) | 64.6°F(18.1°C) | 77.2°F(25.1°C) | 0.00"(0.0 mm) |
| May 15 | 82.0°F(27.8°C) | 57.4°F(14.1°C) | 68.9°F(20.5°C) | 0.00"(0.0 mm) |
| May 16 | 78.0°F(25.6°C) | 56.9°F(13.8°C) | 65.4°F(18.6°C) | 0.00"(0.0 mm) |
| May 17 | 73.1°F(22.8°C) | 60.2°F(15.6°C) | 65.2°F(18.5°C) | 0.00"(0.0 mm) |
| May 18 | 78.0°F(25.5°C) | 59.5°F(15.3°C) | 67.1°F(19.5°C) | 0.00"(0.0 mm) |
| May 19 | 82.8°F(28.2°C) | 57.1°F(14.0°C) | 69.2°F(20.6°C) | 0.00"(0.0 mm) |
| May 20 | 95.1°F(35.1°C) | 59.3°F(15.2°C) | 75.9°F(24.4°C) | 0.00"(0.0 mm) |
| May 21 | 87.9°F(31.1°C) | 60.9°F(16.0°C) | 72.8°F(22.7°C) | 0.00"(0.0 mm) |
| May 22 | 80.4°F(26.9°C) | 60.6°F(15.9°C) | 68.4°F(20.2°C) | 0.00"(0.0 mm) |
| May 23 | 75.1°F(23.9°C) | 59.3°F(15.2°C) | 65.6°F(18.7°C) | 0.00"(0.0 mm) |
| May 24 | 78.2°F(25.6°C) | 58.5°F(14.7°C) | 66.0°F(18.9°C) | 0.00"(0.0 mm) |
| May 25 | 77.7°F(25.4°C) | 56.2°F(13.5°C) | 64.5°F(18.1°C) | 0.00"(0.0 mm) |
| May 26 | 77.2°F(25.1°C) | 55.8°F(13.2°C) | 64.4°F(18.0°C) | 0.00"(0.0 mm) |
| May 27 | 80.8°F(27.1°C) | 56.4°F(13.6°C) | 66.6°F(19.2°C) | 0.00"(0.0 mm) |
| May 28 | 76.6°F(24.8°C) | 59.8°F(15.4°C) | 66.1°F(19.0°C) | 0.00"(0.0 mm) |
| May 29 | 86.5°F(30.3°C) | 58.1°F(14.5°C) | 71.3°F(21.8°C) | 0.00"(0.0 mm) |
| May 30 | 88.5°F(31.4°C) | 60.8°F(16.0°C) | 73.4°F(23.0°C) | 0.00"(0.0 mm) |
| May 31 | 89.0°F(31.7°C) | 60.5°F(15.8°C) | 72.9°F(22.7°C) | 0.00"(0.0 mm) |