Cambridge Weather Summary
   September 1999

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

Temperature (degrees C)
   Average: 17.6
   Minimum: 9.6 (10 September 04:00)
   Maximum: 30.6 (03 September 13:30)

Relative Humidity (%)
   Average: 77.7
   Minimum: 22 (03 September 14:00)
   Maximum: 100 (15 September 20:00)

Dew Point (degrees C)
   Average: 13.0
   Minimum: 3.8 (09 September 17:30)
   Maximum: 18.6 (05 September 20:00)

Atmospheric Pressure (mbar)
   Average: 1008.0
   Minimum: 984 (20 September 04:30)
   Maximum: 1030 (09 September 20:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 2.5
   Minimum: 0.0 (01 September 00:00)
   Maximum: 10.8 (18 September 12:00)

Half-hourly Maximum Wind Speed (knots)
   Average: 9.2
   Minimum: 0 (01 September 00:00)
   Maximum: 28 (23 September 10:30)

Prevalent Wind Direction
   SE (44.9% of readings)

Total Sunshine Hours
   137.0

Total Rainfall mm
   57.5