Cambridge Weather Summary December 2020 Based on 31 days' worth of half-hourly data recorded with rooftop sensors at the Computer Laboratory, Cambridge, U.K. Temperature (degrees C) Average: 3.4 Minimum: -5.2 (31 December 05:00) Maximum: 11.8 (21 December 15:30) Relative Humidity (%) Average: 90.0 Minimum: 47 (27 December 12:30) Maximum: 100 (01 December 07:00) Dew Point (degrees C) Average: 1.9 Minimum: -7.6 (25 December 11:00) Maximum: 11.8 (21 December 15:30) Atmospheric Pressure (mbar) Average: 1000.0 Minimum: 967 (04 December 03:30) Maximum: 1033 (25 December 07:00) Half-hourly Instantaneous Wind Speed (knots) Average: 4.0 Minimum: 0.0 (02 December 01:00) Maximum: 32.0 (27 December 02:30) Half-hourly Maximum Wind Speed (knots) Average: 11.1 Minimum: 0 (02 December 02:00) Maximum: 42 (27 December 01:00) Prevalent Wind Direction S (23.4% of readings) Total Sunshine Hours 50.3 Total Rainfall mm 0.0