Cambridge Weather Summary
   September 2011

Based on 30 days' worth of half-hourly data recorded with
rooftop sensors at the Computer Laboratory, Cambridge, U.K.

Temperature (degrees C)
   Average: 16.1
   Minimum: 5.2 (18 September 05:30)
   Maximum: 28.7 (30 September 13:30)

Relative Humidity (%)
   Average: 74.8
   Minimum: 27 (30 September 14:30)
   Maximum: 100 (02 September 03:30)

Dew Point (degrees C)
   Average: 11.3
   Minimum: 5.1 (13 September 20:30)
   Maximum: 19.1 (10 September 07:30)

Atmospheric Pressure (mbar)
   Average: 1012.1
   Minimum: 996 (12 September 07:00)
   Maximum: 1031 (27 September 08:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 6.6
   Minimum: 0.0 (01 September 02:30)
   Maximum: 48.0 (12 September 12:00)

Half-hourly Maximum Wind Speed (knots)
   Average: 14.7
   Minimum: 0 (01 September 03:00)
   Maximum: 50 (12 September 10:00)

Prevalent Wind Direction
   SW (45.6% of readings)

Total Sunshine Hours
   147.7

Total Rainfall mm
   489.3