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San Bernardino, California Weather Summary
May,
2011
| 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: | 96.2°F (35.7°C) | at 2:41PM May 4 | 76.5°F (24.7°C) | 80°F (26°C) |
| Low Temperature: | 46.2°F (7.9°C) | at 5:49AM May 19 | 53.4°F (11.9°C) | 57°F (14°C) |
| Month Average: | 64.4°F (18.0°C) | for 31 days | ||
| Normal Average: | 67°F (20°C) | |||
| Precipitation: | 0.49" (12.4 mm) | |||
| Date | High | Low | Average | Precipitation |
| May 1 | 80.4°F(26.9°C) | 52.6°F(11.5°C) | 68.6°F(20.3°C) | 0.00"(0.0 mm) |
| May 2 | 86.8°F(30.5°C) | 50.9°F(10.5°C) | 70.7°F(21.5°C) | 0.00"(0.0 mm) |
| May 3 | 93.5°F(34.2°C) | 53.2°F(11.8°C) | 75.2°F(24.0°C) | 0.00"(0.0 mm) |
| May 4 | 96.2°F(35.7°C) | 59.2°F(15.1°C) | 78.2°F(25.7°C) | 0.00"(0.0 mm) |
| May 5 | 92.6°F(33.7°C) | 59.7°F(15.4°C) | 75.6°F(24.2°C) | 0.00"(0.0 mm) |
| May 6 | 84.9°F(29.4°C) | 57.4°F(14.1°C) | 70.4°F(21.3°C) | 0.00"(0.0 mm) |
| May 7 | 75.4°F(24.1°C) | 54.7°F(12.6°C) | 63.2°F(17.3°C) | 0.00"(0.0 mm) |
| May 8 | 68.4°F(20.2°C) | 54.4°F(12.4°C) | 59.3°F(15.2°C) | 0.01"(0.2 mm) |
| May 9 | 62.6°F(17.0°C) | 51.5°F(10.8°C) | 56.3°F(13.5°C) | 0.02"(0.5 mm) |
| May 10 | 69.6°F(20.9°C) | 51.7°F(10.9°C) | 59.6°F(15.3°C) | 0.00"(0.0 mm) |
| May 11 | 77.3°F(25.1°C) | 49.9°F(9.9°C) | 63.0°F(17.2°C) | 0.00"(0.0 mm) |
| May 12 | 87.0°F(30.5°C) | 54.1°F(12.3°C) | 70.0°F(21.1°C) | 0.00"(0.0 mm) |
| May 13 | 81.7°F(27.6°C) | 57.4°F(14.1°C) | 69.0°F(20.6°C) | 0.00"(0.0 mm) |
| May 14 | 71.6°F(22.0°C) | 56.8°F(13.8°C) | 62.3°F(16.8°C) | 0.00"(0.0 mm) |
| May 15 | 63.5°F(17.5°C) | 51.1°F(10.6°C) | 56.6°F(13.7°C) | 0.06"(1.5 mm) |
| May 16 | 64.3°F(17.9°C) | 46.5°F(8.1°C) | 55.0°F(12.8°C) | 0.00"(0.0 mm) |
| May 17 | 66.4°F(19.1°C) | 48.0°F(8.9°C) | 55.7°F(13.2°C) | 0.02"(0.5 mm) |
| May 18 | 61.3°F(16.3°C) | 49.6°F(9.8°C) | 55.4°F(13.0°C) | 0.37"(9.4 mm) |
| May 19 | 70.4°F(21.3°C) | 46.2°F(7.9°C) | 58.8°F(14.9°C) | 0.00"(0.0 mm) |
| May 20 | 75.2°F(24.0°C) | 53.9°F(12.1°C) | 64.7°F(18.2°C) | 0.00"(0.0 mm) |
| May 21 | 81.0°F(27.2°C) | 54.5°F(12.5°C) | 66.5°F(19.2°C) | 0.00"(0.0 mm) |
| May 22 | 71.5°F(22.0°C) | 56.3°F(13.5°C) | 62.1°F(16.7°C) | 0.00"(0.0 mm) |
| May 23 | 69.3°F(20.7°C) | 55.7°F(13.2°C) | 60.7°F(16.0°C) | 0.01"(0.2 mm) |
| May 24 | 75.4°F(24.1°C) | 54.0°F(12.2°C) | 62.3°F(16.8°C) | 0.00"(0.0 mm) |
| May 25 | 81.0°F(27.2°C) | 54.6°F(12.6°C) | 67.5°F(19.7°C) | 0.00"(0.0 mm) |
| May 26 | 78.1°F(25.6°C) | 53.9°F(12.1°C) | 65.7°F(18.7°C) | 0.00"(0.0 mm) |
| May 27 | 81.5°F(27.5°C) | 56.1°F(13.4°C) | 68.2°F(20.1°C) | 0.00"(0.0 mm) |
| May 28 | 75.1°F(23.9°C) | 56.7°F(13.7°C) | 65.1°F(18.4°C) | 0.00"(0.0 mm) |
| May 29 | 66.4°F(19.1°C) | 53.6°F(12.0°C) | 59.5°F(15.3°C) | 0.00"(0.0 mm) |
| May 30 | 80.7°F(27.1°C) | 48.4°F(9.1°C) | 64.1°F(17.8°C) | 0.00"(0.0 mm) |
| May 31 | 82.3°F(28.0°C) | 53.1°F(11.7°C) | 67.8°F(19.9°C) | 0.00"(0.0 mm) |