Cambridge Weather Summary December 2015 Based on 31 days' worth of half-hourly data recorded with rooftop sensors at the Computer Laboratory, Cambridge, U.K. Temperature (degrees C) Average: 11.4 Minimum: 11.4 (01 December 00:00) Maximum: 11.4 (01 December 00:00) Relative Humidity (%) Average: 72.8 Minimum: 26 (11 December 17:00) Maximum: 100 (02 December 09:30) Dew Point (degrees C) Average: 6.6 Minimum: -7.4 (11 December 17:00) Maximum: 11.4 (02 December 09:30) Atmospheric Pressure (mbar) Average: 1016.6 Minimum: 1001 (30 December 23:00) Maximum: 1035 (09 December 10:00) Half-hourly Instantaneous Wind Speed (knots) Average: 8.4 Minimum: 0.0 (01 December 00:00) Maximum: 36.0 (05 December 16:30) Half-hourly Maximum Wind Speed (knots) Average: 18.8 Minimum: 0 (06 December 21:30) Maximum: 48 (06 December 03:00) Prevalent Wind Direction S (50.4% of readings) Total Sunshine Hours 48.5 Total Rainfall mm 91.3