October 2013

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

Mean daily maximum: 14.3
Difference from average: +1.1

Mean daily minimum: 8.2
Difference from average: +1.9

Mean air temperature: 11.3
Difference from average: +1.5

Absolute maximum: 19.5 (7th)

Absolute minimum: 4.1 (30th)

Mean grass minimum: 5.4

Absolute grass minimum: -0.2 (30th)

Number of ground frosts: 1

Number of air frosts: 0

Mean soil temperature at 30cm depth: 14.9

Mean soil temperature at 100cm depth: 14.9

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

Total for the month: 100.2
Difference from average: +47.6

Percentage of the average: 191%

Wettest day: 21.4 (14th)

Number of rain days (>0.25mm): 19

Number of wet days (=> 1mm): 18

3-month total rainfall to 31st October: 256.2
Difference from average: +117.5

6-month rainfall total to 31st October: 447.8
Difference from average: +117.5

12-month rainfall total to 31st October: 869.4
Difference from average: +220.4

Sunshine
(all averages 1961 – 1990)

Total for the month: 60.7 hours
Difference from average: -32.4

Percentage of the average: 65%

Mean daily sunshine: 2.0 hours
Difference from average: -1.0

Sunniest day: 7.1 hours (29th)

Number of days with no recorded sunshine: 4

Cumulative total sunshine since 1st January: 1083.9 hours
Difference from average: -133.6

ISSN1350-483

Comments on October 2013
This was the 10th warmest October on record, although only the warmest since 2006. Four of the warmest 10 Octobers have come since 2000. There was the 7th highest mean minimum temperature and the 19th highest mean maximum.

It was the wettest October since 2004, the 28th wettest since 1850. October was also a dull month, the 9th dullest October since 1882.

Professor Tim Burt
Department of Geography
Durham University