statistics hide the varied and sometimes violent weather of May 2018.
Temperatures on average were 2.4 deg above normal, there were no air
frosts recorded, and just one night on the 1st with a ground
frost when the temperature fell to +0.1C. Statistically a
record warm month with mean temperature 14.3C beating 14.1C in 2017. The
mean max temp was also a new record 20.6C, beating 19.6C in 1992.
was slightly above average for May, but the distribution of it during
the month was striking. 21 days (between 3rd and 24th) were
virtually dry, but 10 days had appreciable rain (9 were classed as wet,
5 very wet). Indeed 15mm fell during 1st /2nd,
while 44mm fell during 24th /25th /26th
giving very heavy falls in a short time
much reported thunderstorms began here late
on the evening of 26th with rumbles, then vivid persistent
lightning (much appearing to be cloud to cloud).
These continued throughout much of the 27th, with
particularly violent thunderstorms here starting at 0215, then 0640 and
Halesowen was spared the late afternoon downpours suffered in the nearby
Selly Oak and Edgbaston areas of Birmingham, we recorded around 5mm and
they 59mm in an hour around 1730 .
There were many bright sunny days during the month (10 days with at
least 11 hours good sunshine recorded), others with good sunshine for
part of the day, contrasting with two really dull days on 25th
and 30th (having no more than 0.5hrs sunshine recorded).
REPORT FOR SPRING
Mar, Apr, May
was wet but mild.
months of Mar, Apr and May produced 123mm, 87mm and 72mm of rainfall
respectively, all above normal statistically, even though May was
virtually dry between 4th and 24th. Overall we had
281.8mm (140% of normal) rainfall, 4th highest on record
here. Raindays were numerically 27% up, wetdays 32% up and verywetdays
were 107% up (a
record) on long term averages.
anomalies for the three months were –1.7deg, +1.2deg and +2.4deg
respectively, giving the 11th = highest mean temp for the
Spring months with an anomaly of +1.0C. There was a new record HiMax set
on 7th May of 29.2C, and a new record LoMax –2.1C was set
on 1st Mar.
V Wet Days