May 2020

Mean max 16.2C, high max 25.3C (29th), low max 7.8C

Mean min 7.1C, high min 13.8C, low min -0.5C, grass min -4.7C (both 11th)


Month mean 11.7C

Precipitation 30.3 mm, wettest day 9.6 mm (9th)

Sunshine 264.12 hrs, sunniest day 16.78 hrs (31st)

Snow fell on 1 day, small hail on 1 day, 1 air frost (duration 1.5 hrs),
ground frost on 6 days

9th - wind direction change from NW-E at 2100 GMT led to temperature
falling from 14.4C to 7.8C in one hour.

10th - shower of hail and snow at 1800 GMT.

20th - relative humidity of 12% here at 2120 GMT. Similar values
elsewhere in the Edinburgh area. The lowest such value I have ever
recorded (Epping 1979 - 2013 and Swanston, Edinburgh since 2014).

26th to 31st - 88.59 hours of sunshine recorded.

Sunniest May in short record here (2014).


Spring 2020

Mean max 12.4C, mean min 4.7C, overall mean 8.6C

Precipitation 91.9 mm

Sunshine 619.0 hrs

The sunniest Spring in the short record here (2014)

--
George in Swanston, Edinburgh, 575'asl
www.swanstonweather.co.uk