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March 2015

March 2015

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

Mean daily maximum: 9.2
Difference from average: +0.8

Mean daily minimum: 1.7
Difference from average: +0.1

Mean air temperature: 5.4
Difference from average: +0.5

Absolute maximum: 13.4 (20th)

Absolute minimum: -1.8 (9th)

Mean grass minimum: -0.5

Absolute grass minimum: -4.1 (9th)

Number of ground frosts: 18

Number of air frosts: 7

Mean soil temperature at 30cm depth: 6.1

Mean soil temperature at 100cm depth: 6.5

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

Total for the month: 45.5
Difference from average: -5.7

Percentage of the average: 88%

Wettest day: 17.8 (13th)

Number of rain days (>0.25mm): 14

Number of wet days (=> 1mm): 9

3-month total rainfall to 31st March: 107.7
Difference from average: -64.3

6-month rainfall total to 31st March: 239.3
Difference from average: -106.9

12-month rainfall total to 31st March: 581.9
Difference from average: -67.1

(averages for 09:00 hours GMT)

Relative Humidity: 76%

(all averages 1961 – 1990)

Total for the month: 114.4 hours
Difference from average: +8.9

Percentage of the average: 109%

Mean daily sunshine: 3.7 hours
Difference from average: +0.3

Sunniest day: 9.7 hours (22nd)

Number of days with no recorded sunshine: 1

Cumulative total sunshine since 1st January: 299.1 hours
Difference from average: +74.4


Comments on March 2015
March was only a little above average temperature and perhaps a little disappointing later in the month as we awaited better spring weather. There were no days above 10°C after the 10th. Both mean maximum and mean minimum were above average, the latter only just so. There was a relatively high number of ground frosts. Rainfall was just below average and all long-term rainfall totals remained below average as a result. There were slightly more hours of bright sunshine than usual but all in all this was a very much ‘average’ March.

Professor Tim Burt
Department of Geography
Durham University