Cambridge Weather Summary
   December 2011

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

Temperature (degrees C)
   Average: 5.8
   Minimum: -3.2 (19 December 00:30)
   Maximum: 13.2 (26 December 13:00)

Relative Humidity (%)
   Average: 83.6
   Minimum: 46 (07 December 14:30)
   Maximum: 100 (02 December 05:00)

Dew Point (degrees C)
   Average: 3.2
   Minimum: -3.9 (18 December 22:30)
   Maximum: 11.8 (21 December 14:00)

Atmospheric Pressure (mbar)
   Average: 1008.4
   Minimum: 977 (13 December 04:00)
   Maximum: 1035 (27 December 07:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 7.8
   Minimum: 0.0 (01 December 17:00)
   Maximum: 38.0 (08 December 15:00)

Half-hourly Maximum Wind Speed (knots)
   Average: 17.3
   Minimum: 0 (01 December 17:00)
   Maximum: 46 (08 December 18:00)

Prevalent Wind Direction
   SW (60.3% of readings)

Total Sunshine Hours
   58.8

Total Rainfall mm
   34.7