Cambridge Weather Summary
   Year 2009

Based on 321 days' worth of half-hourly data recorded with
rooftop sensors at the Computer Laboratory, Cambridge, U.K.

Temperature (degrees C)
   Average: 9.5
   Minimum: -6.4 (06 January 07:00)
   Maximum: 29.1 (19 August 15:00)

Relative Humidity (%)
   Average: 82.0
   Minimum: 27 (22 April 15:00)
   Maximum: 100 (01 January 00:00)

Dew Point (degrees C)
   Average: 6.2
   Minimum: -9.2 (01 February 14:00)
   Maximum: 19.5 (05 August 20:30)

Atmospheric Pressure (mbar)
   Average: 1012.2
   Minimum: 963 (23 January 05:30)
   Maximum: 1041 (10 September 19:30)

Half-hourly Instantaneous Wind Speed (knots)
   Average: 4.8
   Minimum: 0.0 (01 January 05:00)
   Maximum: 44.0 (22 November 20:00)

Half-hourly Maximum Wind Speed (knots)
   Average: 11.7
   Minimum: 0 (01 January 06:00)
   Maximum: 48 (14 November 16:30)

Prevalent Wind Direction
   SW (25.3% of readings)

Total Sunshine Hours
   1859.9

Total Rainfall mm
   348.1