Halesowen
Annual Summary for 2020
A
mild year overall, the 4th mildest on record here in 65 years,
beaten only by 2006, 2011 and 2014, having 9 months above average, Jan Apr
and May exceptionally so. Only Jul and Oct were below normal, and Dec was
normal.
New
record HiMax was 35.6C on 31/7/20.
New record
HiMean was 26.7C on 12/8/20.
New
record 220 raindays, also
7th highest 152 wetdays, and 57 very wet days.
MONTHLY
RAIN AND MEAN TEMPS
TEMPERATURES
15.0 mean max (C) , +1.1 diff
from av (C) 4th =
highest
6.8
mean min (C) , +0.9
diff from av (C) 7th
highest
10.9 mean (C),
+1.0 diff from av (C) 4th
= highest
HiMax
35.6C on 31/7/20 New
highest
LoMax 0.5C on 28/12/20
HiMin
18.9C on 26/6/20 6th
highest
LoMin -3.7C on 31/12/20
Highest Mean 26.7C on 12/8/20
New highest
Lowest Mean –0.9C
on 31/12/20
RAINFALL
852.4
rain total (mm), 111 % of av 16th highest
220
raindays (with 0.2mm or more)
New highest
152 wetdays (with
1mm or more)
7th highest
57 verywetdays
(with 5mm or more) 18th
highest
35.2
most rainfall in a day (mm) on 15/2/20
Rainfall
duration 792.5 hours
SNOWFALL
2 days with snow falling,
totalling 5.5cm;
Most snowfall in a day 3.5 cm on 28/12/20.
4 days with lying snow
PRESSURE
1014.0 mean pressure (mb) , +0.5
pressure anomaly (mb)
1049.3 max pressure at any time of day, on 20/1/20
New record highest
968.5 min pressure at any
time of day, on 28/12/20 10th
lowest
FOG
15
days with fog
FROSTS
25 air frosts, 3rd fewest, the last was 14/5/20, first
4/11/20,
so 174 days airfrost free
81
ground frosts, last 15/5/20, first 28/9/20,
so 136 days with no air or ground frost.
Frost duration 147.5 hours.
It
is noteworthy that all 17 years with fewest airfrosts (less than 64), have
occurred since 2000, with 2010 ranking 19th, 2000 was 24th
and 2001 was 46th.
THUNDER
6 days with thunder heard, 16/6 17/6 10/6 11/6 12/8 17/8
- 9th fewest
HAIL
5 days with small hail, 1 day with large hail
HUMIDITY
86.1% at 0900
CLOUD
COVER
61.9% at 0900