Cambridge Weather Summary December 2016 Based on 31 days' worth of half-hourly data recorded with rooftop sensors at the Computer Laboratory, Cambridge, U.K. Temperature (degrees C) Average: 4.6 Minimum: -4.4 (05 December 06:00) Maximum: 13.2 (09 December 13:30) Relative Humidity (%) Average: 91.5 Minimum: 38 (26 December 14:00) Maximum: 100 (01 December 01:30) Dew Point (degrees C) Average: 3.3 Minimum: -7.3 (26 December 16:30) Maximum: 12.7 (08 December 14:30) Atmospheric Pressure (mbar) Average: 1027.2 Minimum: 1015 (21 December 03:30) Maximum: 1048 (27 December 18:00) Half-hourly Instantaneous Wind Speed (knots) Average: 2.4 Minimum: 0.0 (02 December 03:00) Maximum: 26.0 (25 December 03:00) Half-hourly Maximum Wind Speed (knots) Average: 7.6 Minimum: 0 (02 December 03:30) Maximum: 40 (23 December 15:30) Prevalent Wind Direction SW (43.4% of readings) Total Sunshine Hours 64.0 Total Rainfall mm 19.3