Cambridge Weather Summary September 2003 Based on 30 days' worth of half-hourly data recorded with rooftop sensors at the Computer Laboratory, Cambridge, U.K. Temperature (degrees C) Average: 15.8 Minimum: 2.4 (24 September 05:30) Maximum: 30.0 (16 September 16:00) Relative Humidity (%) Average: 67.6 Minimum: 20 (14 September 15:30) Maximum: 100 (10 September 06:00) Dew Point (degrees C) Average: 9.0 Minimum: -4.0 (23 September 16:00) Maximum: 17.6 (22 September 13:30) Atmospheric Pressure (mbar) Average: 1020.5 Minimum: 1000 (22 September 12:00) Maximum: 1034 (12 September 19:30) Half-hourly Instantaneous Wind Speed (knots) Average: 2.1 Minimum: 0.0 (01 September 22:59) Maximum: 12.2 (22 September 14:30) Half-hourly Maximum Wind Speed (knots) Average: 7.7 Minimum: 0 (01 September 22:59) Maximum: 40 (22 September 12:00) Prevalent Wind Direction S (30.6% of readings) Total Sunshine Hours 203.6 Total Rainfall mm 8.8