Cambridge Weather Summary
   December 1999

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

Temperature (degrees C)
   Average: 4.9
   Minimum: -4.8 (20 December 06:00)
   Maximum: 13.2 (24 December 21:00)

Relative Humidity (%)
   Average: 84.5
   Minimum: 50 (19 December 14:00)
   Maximum: 100 (11 December 11:00)

Dew Point (degrees C)
   Average: 2.4
   Minimum: -7.1 (19 December 10:00)
   Maximum: 11.4 (11 December 12:00)

Atmospheric Pressure (mbar)
   Average: 1005.2
   Minimum: 973 (24 December 22:00)
   Maximum: 1029 (20 December 07:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 4.8
   Minimum: 0.0 (14 December 01:00)
   Maximum: 18.3 (03 December 08:30)

Half-hourly Maximum Wind Speed (knots)
   Average: 14.9
   Minimum: 0 (18 December 06:00)
   Maximum: 54 (03 December 09:30)

Prevalent Wind Direction
   S (42.9% of readings)

Total Sunshine Hours
   84.1

Total Rainfall mm
   33.7