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Rothamsted Research release weather summary for 2018

PUBLISHED: 11:00 04 January 2019

Rothamsted Research, which collates Harpenden's weather data. Photo: Danny Loo.

Rothamsted Research, which collates Harpenden's weather data. Photo: Danny Loo.

Archant

The weather boffins are back! Rothamsted Research has released a weather summary for the whole of 2018.

2018 had below average rainfall with 683.3mm recorded; the annual average is 733mm.

It rained (0.2mm or more) on 192 days. The most on one day was 31.4mm on October 14 and the wettest month was March with 78.5mm.

The driest month was June with 3.7mm. Of the twelve months, six had below average rainfall.

The total hours of sunshine for 2018 was above average with 1864.7 hours; the average is 1592.3 hours.

The ‘sunniest’ month was July with 294.4 hours. 2018 was the second sunniest year recorded at Rothamsted since 1891.

The overall mean temperature for the year was above average at 10.7C; the average is 9.8C.

2018 ranks as the fourth warmest year on record with only 2002, 2006, 2011 and 2014 being warmer.

The mean maximum and minimum temperatures were above average with 14.8C (+1.19) and 6.6C (+0.67) respectively.

The hottest day was July 26 reaching 32.4C and the coldest night was the March 1 which dropped to -6.8C. There were 102 ground frosts (107 in 2017).

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