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San Bernardino, California Weather Summary
December,
2016
| 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: | 76.9°F (24.9°C) | at 1:51PM Dec 4 | 64.9°F (18.3°C) | 66°F (19°C) |
| Low Temperature: | 33.4°F (0.8°C) | at 7:18AM Dec 25 | 45.5°F (7.5°C) | 44°F (7°C) |
| Month Average: | 54.7°F (12.6°C) | for 31 days | ||
| Normal Average: | 55°F (13°C) | |||
| Precipitation: | 5.56" (141.2 mm) | |||
| Date | High | Low | Average | Precipitation |
| December 1 | 64.4°F(18.0°C) | 44.9°F(7.1°C) | 54.3°F(12.4°C) | 0.00"(0.0 mm) |
| December 2 | 59.9°F(15.5°C) | 51.2°F(10.6°C) | 55.6°F(13.1°C) | 0.00"(0.0 mm) |
| December 3 | 69.4°F(20.8°C) | 52.0°F(11.1°C) | 59.0°F(15.0°C) | 0.00"(0.0 mm) |
| December 4 | 76.9°F(24.9°C) | 44.9°F(7.2°C) | 59.6°F(15.4°C) | 0.00"(0.0 mm) |
| December 5 | 67.1°F(19.5°C) | 43.7°F(6.5°C) | 54.7°F(12.6°C) | 0.00"(0.0 mm) |
| December 6 | 60.6°F(15.9°C) | 50.3°F(10.2°C) | 55.6°F(13.1°C) | 0.00"(0.0 mm) |
| December 7 | 63.6°F(17.6°C) | 48.4°F(9.1°C) | 54.9°F(12.7°C) | 0.00"(0.0 mm) |
| December 8 | 66.3°F(19.0°C) | 42.4°F(5.8°C) | 54.2°F(12.4°C) | 0.00"(0.0 mm) |
| December 9 | 65.4°F(18.6°C) | 45.1°F(7.3°C) | 54.7°F(12.6°C) | 0.00"(0.0 mm) |
| December 10 | 67.1°F(19.5°C) | 45.4°F(7.5°C) | 56.0°F(13.3°C) | 0.00"(0.0 mm) |
| December 11 | 63.1°F(17.3°C) | 55.9°F(13.3°C) | 59.3°F(15.2°C) | 0.00"(0.0 mm) |
| December 12 | 66.3°F(19.1°C) | 54.4°F(12.5°C) | 59.7°F(15.4°C) | 0.00"(0.0 mm) |
| December 13 | 68.9°F(20.5°C) | 53.0°F(11.6°C) | 59.4°F(15.2°C) | 0.00"(0.0 mm) |
| December 14 | 75.3°F(24.0°C) | 48.1°F(8.9°C) | 59.7°F(15.4°C) | 0.00"(0.0 mm) |
| December 15 | 69.0°F(20.5°C) | 51.8°F(11.0°C) | 58.7°F(14.9°C) | 0.19"(4.8 mm) |
| December 16 | 60.5°F(15.8°C) | 42.7°F(5.9°C) | 53.9°F(12.1°C) | 1.73"(43.9 mm) |
| December 17 | 58.5°F(14.7°C) | 37.2°F(2.9°C) | 47.6°F(8.6°C) | 0.00"(0.0 mm) |
| December 18 | 62.1°F(16.7°C) | 34.9°F(1.6°C) | 48.1°F(8.9°C) | 0.00"(0.0 mm) |
| December 19 | 65.7°F(18.7°C) | 36.7°F(2.6°C) | 50.9°F(10.5°C) | 0.00"(0.0 mm) |
| December 20 | 71.6°F(22.0°C) | 39.7°F(4.3°C) | 55.1°F(12.8°C) | 0.00"(0.0 mm) |
| December 21 | 63.9°F(17.7°C) | 50.7°F(10.4°C) | 55.7°F(13.2°C) | 0.75"(19.0 mm) |
| December 22 | 56.5°F(13.6°C) | 49.5°F(9.7°C) | 53.4°F(11.9°C) | 0.74"(18.8 mm) |
| December 23 | 61.9°F(16.6°C) | 50.0°F(10.0°C) | 56.3°F(13.5°C) | 0.60"(15.2 mm) |
| December 24 | 54.5°F(12.5°C) | 39.7°F(4.3°C) | 49.0°F(9.4°C) | 0.51"(13.0 mm) |
| December 25 | 55.2°F(12.9°C) | 33.4°F(0.8°C) | 44.1°F(6.7°C) | 0.00"(0.0 mm) |
| December 26 | 60.1°F(15.6°C) | 37.2°F(2.9°C) | 48.3°F(9.1°C) | 0.00"(0.0 mm) |
| December 27 | 68.4°F(20.2°C) | 39.1°F(4.0°C) | 51.8°F(11.0°C) | 0.00"(0.0 mm) |
| December 28 | 76.6°F(24.8°C) | 42.9°F(6.0°C) | 57.5°F(14.2°C) | 0.00"(0.0 mm) |
| December 29 | 73.9°F(23.3°C) | 46.4°F(8.0°C) | 60.3°F(15.7°C) | 0.01"(0.2 mm) |
| December 30 | 62.8°F(17.1°C) | 52.9°F(11.6°C) | 57.2°F(14.0°C) | 0.15"(3.8 mm) |
| December 31 | 55.6°F(13.1°C) | 46.5°F(8.0°C) | 51.9°F(11.0°C) | 0.88"(22.3 mm) |