Halesowen Weather

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MAY 2018

The statistics hide the varied 
and sometimes violent weather of May 2018 ...

click here

 

 
Halesowen, West Midlands
   lies 13km to the 
west of Birmingham 
in central England. 

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here for the last 62 years


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MAY
2018

The 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.

Rainfall 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

The 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 also 1600.

Thankfully 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).

Spring Stats
SEASONAL REPORT FOR SPRING 
Mar, Apr, May 
 

Spring was wet but mild.

The 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.

Temperature 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.  

                   this year   normal    anomaly

HiMax              29.2          29.2    
MeanMax        14.2         13.1          +1.1
LoMax              -2.1        -2.1              
MEAN                 9.7         8.7            +1.0 
 
HighMin            13.7       14.7                
MeanMin          5.2           4.3           +0.9
LoMin               -6.9       -11.1                           
 
RAINFALL      281.8       173.7       140.4%

Raindays          55          43.2         +11.8
Wet Days          43          32.6         +10.4
V Wet Days       24         11.6         +12.4

Oktas               5.3          5.4             -0.1  
Bright Sun    382.5     420.5           -38.0

TEMPERATURES

20.6 mean max (C) 
  8.1 mean min (C) 
14.3 mean (C)  +2.4 diff from av (C)
29.2 high max (C) on   7
13.1 low max (C) on   
13.7 high min (C) on  31 
  0.1 low min (C) on     1

RAINFALL


71.7 rain total (mm)
123 % of av 
10 raindays (days with >=0.2mm), 12th= lowest number of raindays
  9 wetdays (days with >=1mm)
  5 very wet days (days with >=5mm)

OTHER

Ground frost on 1 day
Air frost on 0 days
2 thunder days
45% cloud cover percent
79% mean RH  

 


Annual Summary for 2017

Overall a mild year with 6th highest mean temperature.Mean min temps were +1.0deg, 
mean temps +0.8deg and mean max temps +0.6deg above normal.
 
There were just 33 airfrosts (7th fewest) and 87 ground frosts recorded.
Rainfall was 105% of normal, with 202 raindays, 147 wetdays and 62 verywetdays
 
(9th highest, about 10% above normal).

April 20mm and October 34mm were especially dry months , 
while wettest months were September with 100mm and December with 124mm. 
Wettest day was 28.2mm on 26/12/17.Snow fell on 7 days, 
the majority 31.4cm falling between 8th and 11th Dec 
(most in
one day was 12cm on 10th Dec).

TEMPERATURE
14.5 mean max (C) , +0.6 diff from av (C) 11th highest
6.9 mean min (C) , +1.0 diff from av (C) 5th highest
10.7 mean (C), +0.8 diff from av (C) 6th highest

HiMax 33.8C on 19/6/17 8th Highest
LoMax -0.3C on 26/1/17
HiMin 16.8C on 20/6/17
LoMin -7.0C on 12/12/17
Highest Mean 25.0C on 19/6/2017
Lowest Mean 1.8C on 12/12/2017

RAINFALL
806.4 rain total (mm), 105 % of av
202 raindays (with 0.2mm or more) 9th highest (average is 180)
147 wetdays (with 1mm or more) 8th highest (average is 133)
62 verywetdays (with 5mm or more) 9th highest
28.2 most rainfall in a day (mm) on 26/12/2017

The distribution of rainfall has been uneven:
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
78.4 58.5 74.4  20.3  61.2 45.9 73.9 75.4 100.4 34.4 59.5 123.8

SNOWFALL
7 days with snow falling, 1 in Jan, 1 in Feb, 5 in Dec. 9 days with 50% snow cover
Snow totalled 32.9cm, and most snow falling in a day was 12 cm on 10/12/2017.

PRESSURE
1015.8 mean pressure (mb) , +0.3 pressure anomaly (mb)
1038.5 max pressure at any time of day, on 18/1/2017
  976.1 min pressure at any time of day, on 10/12/2017

FROSTS The last frost was 27/4/17,the first 30/10/17,186 days were frost free
There were 33 air frosts (the 7th fewest in 63 years)
There were 87 ground frosts flagged (91 days had min temp below 3C
and 84 days had min temp below 2.456C)

THUNDER   4 days with thunder heard, 28/3 5/8 18/8 16/9
HUMIDITY   
88.6% at 0900
CLOUD COVER 
62.4% at 0900

 

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Page updated   03/06/2018