Cambridge Weather Summary
   December 2008

Based on 31 days' worth of half-hourly data recorded with
rooftop sensors at the Computer Laboratory, Cambridge, U.K.

Temperature (degrees C)
   Average: 3.2
   Minimum: -4.0 (30 December 21:30)
   Maximum: 13.2 (20 December 13:30)

Relative Humidity (%)
   Average: 93.8
   Minimum: 73 (10 December 13:30)
   Maximum: 100 (01 December 00:00)

Dew Point (degrees C)
   Average: 2.3
   Minimum: -4.0 (30 December 21:30)
   Maximum: 11.8 (20 December 12:00)

Atmospheric Pressure (mbar)
   Average: 1016.8
   Minimum: 973 (04 December 09:30)
   Maximum: 1042 (26 December 10:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 3.5
   Minimum: 0.0 (03 December 02:00)
   Maximum: 32.0 (19 December 19:30)

Half-hourly Maximum Wind Speed (knots)
   Average: 9.3
   Minimum: 0 (07 December 02:30)
   Maximum: 38 (13 December 08:00)

Prevalent Wind Direction
   SW (20.7% of readings)

Total Sunshine Hours
   85.3

Total Rainfall mm
   18.3