August 2006

Temperatures
(all temperatures in degrees Celsius; all averages 1961 – 1990)

Mean daily maximum: 19.1
Difference from average: 0

Mean daily minimum: 11.5
Difference from average: +1.2

Mean air temperature: 15.3
Difference from average: +0.6

Absolute maximum: 26.3 (7th)

Absolute minimum: 7.6 (8th)

Mean grass minimum: 9.5

Absolute grass minimum: 3.4 (8th)

Number of ground frosts: 0

Number of air frosts: 0

Mean soil temperature at 30cm depth: 16.9

Mean soil temperature at 100cm depth: 15.9

Rainfall
(all totals in millimetres; all averages 1961 – 1990)

Total for the month: 59
Difference from average: -8.1

Percentage of the average: 88%

Wettest day: 12.8 (2nd)

Number of rain days (>0.25mm): 18

Number of wet days (=> 1mm): 14

3-month total rainfall to 31st August: 79.6
Difference from average: -90.8

6-month rainfall total to 31st August: 263.5
Difference from average: -57.3

12-month rainfall total to 31st August: 561.1
Difference from average: -87.9

Humidity
(Averages for 09:00 hours GMT)

Relative Humidity: 77.1%

Sunshine
(all averages 1961 – 1990)

Total for the month: 87.4 hours
Difference from average: -68.1

Percentage of the average: 56.2%

Mean daily sunshine: 2.8 hours
Difference from average: -2.2

Sunniest day: 8.4 hours (28th)

Number of days with no recorded sunshine: 3

Cumulative total sunshine since 1st January: 1013.5 hours
Difference from average: +13

Wind

The mean wind speed: 10.9km/h [5.9kt]
Difference from average: -0.3km/hr

The highest gust: 55.6km/h [30kt] from 226° at 14:39 GMT on 9th

ISSN1350-483

Comments on August 2006
After the record-breaking July, we returned to normality in August. Indeed, the mean maximum temperature was exactly average, and only a higher than normal mean minimum allowed the mean air temperature to be a little above average. Rainfall too was just about average. It was, however, a very dull month indeed: only August 1912, with a measly 57 hours, has been duller in August since records began in 1882.

Professor Tim Burt
Department of Geography
Durham University