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June 2016

June 2016

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

Mean daily maximum: 17.0
Difference from average: -0.5

Mean daily minimum: 9.3
Difference from average: +0.7

Mean air temperature: 13.2
Difference from average: +0.2

Absolute maximum: 25.6 (7th)

Absolute minimum: 5.4 (2nd)

Mean grass minimum: 8.1

Absolute grass minimum: 3.3 (19th)

Number of ground frosts: 0

Number of air frosts: 0

Mean soil temperature at 30cm depth: 15.1

Mean soil temperature at 100cm depth: 13.0

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

Total for the month: 49.2
Difference from average: -2.6

Percentage of the average: 94.9%

Wettest day: 8.6 (29th)

Number of rain days (>0.25mm): 14

Number of wet days (=> 1mm): 12

3-month total rainfall to 30th June: 172.3
Difference from average: 0.3

6-month rainfall total to 30th June: 374.9
Difference from average: 28.7

12-month rainfall total to 30th June: 877.7
Difference from average: 228.7

(averages for 09:00 hours GMT)

Relative Humidity: 85%

(all averages 1961 – 1990)

Total for the month: 106.3 hours
Difference from average: -57.4

Percentage of the average: 65%

Mean daily sunshine: 3.5 hours
Difference from average: -2.0

Sunniest day: 10.8 hours (6th)

Number of days with no recorded sunshine: 5

Cumulative total sunshine since 1st January: 577.4 hours
Difference from average: -112.7


Comments on June 2016
June was a disappointing month: average temperature and average rainfall and much less sunshine than usual. Daytime temperatures were below average but the reverse was true at night, no doubt because of the generally cloudy skies. It was not a wet month and half the days were dry. Sunshine was well below average, the 8th least sunny June on record since 1882. There were five days with no sun at all. There were 2 hours less sunshine per day than normal, but it was still much better than 2012 when Durham only received 72 hours of bright sunshine in June.

The problems noted last month with telephone access to the automatic weather station continued until 3rd June, and I am again indebted to Ken Cook (Copley) for providing his records.

Professor Tim Burt
Department of Geography
Durham University