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November 2007

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

Mean daily maximum: 10.4
Difference from average: +1.7

Mean daily minimum: 4.0
Difference from average: +1.2

Mean air temperature: 7.2
Difference from average: +1.5

Absolute maximum: 17.0 (2nd)

Absolute minimum: -2.2 (24th)

Mean grass minimum: 1.4

Absolute grass minimum: -6.6 (24th)

Number of ground frosts: 11

Number of air frosts: 3

Mean soil temperature at 30cm depth: 8.5

Mean soil temperature at 100cm depth: 11

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

Total for the month: 57.6
Difference from average: -4.4

Percentage of the average: 93%

Wettest day: 21.6 (20th)

Number of rain days (>0.25mm): 14

Number of wet days (=> 1mm): 10

3-month total rainfall to 30th November: 111.4
Difference from average: -6.3

6-month rainfall total to 30th November: 365.8
Difference from average: -84.5

12-month rainfall total to 30th November: 663.4
Difference from average: +14.4

(Averages for 09:00 hours GMT)

Relative Humidity: 84%

(all averages 1961 – 1990)

Total for the month: 67.6 hours
Difference from average: +1.5

Percentage of the average: 102%

Mean daily sunshine: 2.3 hours
Difference from average: +0.1

Sunniest day: 6.6 hours (8th)

Number of days with no recorded sunshine: 4

Cumulative total sunshine since 1st January: 1257 hours
Difference from average: -26.6


The mean wind speed: 13.5km/h [7.3kt]
Difference from average: -0.7km/hr

The highest gust: 79.6km/h [43kt] from 224° at 10:29 GMT on 7th


Comments on November 2007
Yet again, the mean air temperature was above average. We need to go back 21 months to March 2006 to find a below-average month in Durham, a quite remarkable run. November was the equal 23rd warmest since 1850. The maximum of 17°C on the 2nd was the warmest November day since 1982.

Other climatic variables were all around average. As in October, wind speeds were below average, another relatively calm month.

Professor Tim Burt
Department of Geography
Durham University