Cambridge Weather Summary
   April 2009

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

Temperature (degrees C)
   Average: 9.9
   Minimum: 0.8 (05 April 05:30)
   Maximum: 21.3 (15 April 14:00)

Relative Humidity (%)
   Average: 80.4
   Minimum: 27 (22 April 15:00)
   Maximum: 100 (01 April 04:00)

Dew Point (degrees C)
   Average: 6.3
   Minimum: -1.7 (22 April 11:30)
   Maximum: 13.0 (15 April 12:00)

Atmospheric Pressure (mbar)
   Average: 1012.0
   Minimum: 990 (27 April 12:30)
   Maximum: 1029 (20 April 05:00)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 3.3
   Minimum: 0.0 (01 April 00:00)
   Maximum: 20.0 (07 April 12:30)

Half-hourly Maximum Wind Speed (knots)
   Average: 9.3
   Minimum: 0 (01 April 00:00)
   Maximum: 30 (08 April 03:00)

Prevalent Wind Direction
   SE (29.5% of readings)

Total Sunshine Hours
   403.4

Total Rainfall mm
   4.5