Slightly above average rain for first time since November
Decidedly cool - accentuated by many windy days, and many nights were close to ground frost.

Averages\Extremes for the month of May 2015

---------------------------------------------------------------------------------------------
Average temperature = 9.1°C; diff from climate av: -1.0°C
Average humidity = 80%
Average dewpoint = 5.7°C
Average barometer = 1011.4 mb
Average windspeed = 9.3 mph
Average gustspeed = 12.8 mph
Average direction = 262° ( W )
Rainfall for month = 70.6 mm (+12mm)
Rainfall for year = 196.0 mm  (-92mm)
Maximum rain per minute = 0.6 mm on day 05 at time 12:25
Maximum temperature = 18.8°C on day 22 at time 12:26
Minimum temperature = -1.2°C on day 08 at time 05:27
Maximum humidity = 97% on day 09 at time 03:36
Minimum humidity = 46% on day 11 at time 14:01
Maximum dewpoint = 13.3°C on day 22 at time 13:30
Minimum dewpoint = -2.3°C on day 01 at time 4:19
Maximum pressure = 1025.9 mb on day 23 at time 09:12
Minimum pressure = 983.4 mb on day 05 at time 11:28
Maximum windspeed = 32.2 mph from 270°( W ) on day 05 at time 13:25
Maximum gust speed = 42.6 mph from 270°( W ) on day 05 at time 13:07
Maximum heat index = 18.8°C on day 22 at time 12:26
Avg daily max temp :13.2°C
Avg daily min temp :5.4°C
Growing degrees days :49.3 GDD
Total windrun = 5837.1miles
Frost days= 2
-----------------------------------
Daily rain totals
-----------------------------------
00.2 mm on day 1
12.0 mm on day 3
11.4 mm on day 5
06.4 mm on day 6
00.2 mm on day 7
12.0 mm on day 8
02.0 mm on day 9
03.0 mm on day 18
07.0 mm on day 19
00.2 mm on day 24
03.0 mm on day 27
00.6 mm on day 28
07.4 mm on day 29
04.6 mm on day 31

Summary for May 2015

Temperature (°C):
Mean (1 minute)  12.2
Mean (min+max)   12.3
Mean Minimum     7.0
Mean Maximum     17.6
Minimum          0.0 day 17
Maximum          23.3 day 27
Highest Minimum  11.4 day 23
Lowest Maximum   11.0 day 14
Air frosts       0

Rainfall (mm):
Total for month  64.2
Wettest day      13.8 day 14
High rain rate   21.6 day 18
Rain days        13
Dry days         18

Wind (km/h):
Highest Gust     33 day 05
Average Speed    3
Wind Run         1853.7 km
Gale days        0

Pressure (hPa):
Maximum          1038.6 day 22
Minimum          0.0 day 20

Days with snow falling         0
Days with snow lying at 0900   0

Total hours of sunshine        0.0

                   Monthly Climatological Summary for May 2015

Name: hillcrest   City: Peasedown St John   State: N.E.Somerset UK.
Elevation: 159 m  Lat: N 51° 18' 60"   Lon: W 002° 25' 15"

                  Temperature (°C), Rain (mm), Wind Speed (km/h)

                                      Heat  Cool        Avg
    Mean                              Deg   Deg         Wind                 Dom
Day Temp  High   Time   Low    Time   Days  Days  Rain  Speed High   Time    Dir
----------------------------------------------------------------------------------
 1   8.6  12.7   13:54   4.8   05:54   9.6   0.0   0.0   8.5  27.0   10:09     E
 2   9.2  13.7   15:51   6.1   04:54   9.1   0.0   0.6   5.5  27.0   11:35   ENE
 3  13.0  19.8   11:35   9.4   00:00   5.3   0.0   7.8   2.7  19.0   17:23     E
 4  12.9  18.6   13:55   7.8   05:24   5.1   0.0   9.9   1.9  16.0   23:24     E
 5  11.6  15.0   11:47   8.8   23:54   6.6   0.0   3.6   6.2  33.0   10:49     E
 6  10.0  14.0   08:42   7.0   05:54   8.4   0.0   6.3   4.5  21.0   08:30   ENE
 7  11.6  18.6   11:07   8.0   05:55   6.6   0.0   0.3   1.1  13.0   11:13     E
 8  11.2  16.5   14:28   7.4   05:24   7.1   0.0   0.0   3.6  15.0   10:32   ENE
 9  12.5  17.2   13:51   9.0   23:55   5.9   0.0   0.0   3.6  24.0   15:35    SE
10  12.2  15.2   10:34   8.3   00:55   6.0   0.0   0.0   2.5  13.0   13:59     E
11  15.3  21.1   13:16  11.2   04:53   3.4   0.4   0.0   1.6  12.0   10:06     E
12  12.3  18.1   09:52   7.1   23:55   6.0   0.0   0.0   3.3  23.0   14:27    SE
13  13.6  20.1   13:00   5.0   04:55   4.8   0.1   0.0   2.8  13.0   12:04   ENE
14   8.7  11.0   00:25   7.1   23:55   9.6   0.0  13.8   5.2  23.0   12:37   ENE
15  11.7  18.2   10:20   5.9   05:25   6.7   0.0   0.0   1.8  13.0   10:00    NE
17  11.7  19.2   08:44   0.0   17:08   8.5   0.0   0.0   1.0  22.0   09:23   ENE
18  12.4  17.9   03:29   6.8   23:30   5.8   0.0   3.9   4.8  24.0   12:05   ENE
19   9.3  14.5   11:40   5.5   04:30   9.2   0.0   3.6   3.1  17.0   10:29    SE
20  10.6  16.4   13:38   0.0   00:01   7.7   0.0   0.0   3.6  19.0   08:50    NE
21  13.2  19.6   10:33   7.2   01:30   5.3   0.1   0.0   2.8  15.0   13:18    SE
22  13.7  20.8   12:54   8.0   02:00   4.9   0.2   0.3   1.3  10.0   17:12    SE
23  16.2  21.0   15:23  11.4   01:18   2.5   0.5   0.0   4.0  18.0   09:18   NNE
24  13.5  18.1   17:11   9.2   05:00   4.8   0.0   0.0   0.8   9.0   14:26     E
25  13.5  19.8   11:30   7.2   04:01   4.9   0.1   0.0   1.7  10.0   11:00   NNE
26  13.6  18.4   13:26   8.9   04:30   4.6   0.0   0.0   5.3  17.0   10:46   NNE
27  15.4  23.3   10:31   8.5   03:30   3.8   0.8   0.0   1.7  12.0   17:14   ENE
28  13.5  18.0   09:36   9.0   23:30   4.8   0.0   0.0   3.2  16.0   10:14   SSE
29  10.2  15.0   13:46   7.5   23:43   8.3   0.0   8.7   3.0  17.0   13:43     E
30  13.2  19.2   13:50   7.2   03:30   5.1   0.0   0.3   1.7  15.0   12:39   ESE
31  12.3  16.2   13:48   0.0   00:00   5.9   0.0   5.1   3.6  22.0   14:40    SE
----------------------------------------------------------------------------------
    12.2  23.3    27     0.0    17   186.3   2.2  64.2   3.2  33.0     5       E

Max >=  27.0:  0
Max <=   0.0:  0
Min <=   0.0:  3
Min <= -18.0:  0
Max Rain: 13.8 on day 14
Days of Rain: 13 (>= 0.2 mm)  9 (>= 2.0 mm)  0 (>= 20.0 mm)
Heat Base: 18.3  Cool Base: 18.3  Method: Integration

Stats for east Galway, Ireland. 40 m asl. 
A cool, westerly dominated May. Wet first half. A generally uninspiring month.

Temp mean: 9.5c.
Mean Max: 13.2c
Mean Min: 5.8c

Highest: 16.2c. Day 22
Lowest: 1.4c. Day 13

Rainfall total: 118.4 mm
Wettest day: 21.8mm. Day 5
No. of Days with totals > 2.0mm: 16

Mean windspeed: 7.2 kt
Highest daily mean: 14.4 kt. Day 11
Highest gust: 39.1 kt. Day 11

Miscellaneous:
No days with thunderstorms but hail showers relatively numerous for the time of year.

Brampton May 2015 - wet and cold

Mean Max 12.8c ( -2.4c)
Mean Min 5.9c ( -0.7c)
Mean 9.4c ( -1.5c)

Highest Max 15.8c 10th
Lowest max 9.3c 2nd
Lowest Min -0.1c 1st
Highest Min 10.1c 11th
Grass Min -5.2c 1st

Rainfall Total 128.2mm or 188%
Greatest Fall 25.8mm 8th
Number of days > 0.2mm 22
Number of days > 1.0mm 17
Number of days > 5.0mm 12

Max Gust 40mph 17th
Mean Wind Speed 9.2mph

Sunshine 143.8hrs or 82%

Hail - 5 days
No Thunder, gale or snow observed.

May 2015 - A truly wet month. wettest may on record since I started in 1999 with 128.2mm recorded or 188% of normal. Temperatures were well below normal also making May 2015 the coldest May on record. There were numerous grass frosts and a rare air frost on the 1st May

Better late than never, although i wouldn't trust my stats completely as i had issues with my pc which led to it not recording all data properly due to it going into hibernation.

---------------------------------------------------------------------------------------------
Averages\Extremes for the month of May 2015

---------------------------------------------------------------------------------------------
Average temperature = 9.9°C
Average humidity = 51%
Average dewpoint = -0.8°C
Average barometer = 1001.2 mb
Average windspeed = 1.4 mph
Average gustspeed = 2.5 mph
Average direction = 240° (WSW)
Rainfall for month = 128.5 mm
Rainfall for year = 1017.8 mm
Maximum rain per minute = 2.1 mm on day 17 at time 22:20
Maximum temperature = 19.2°C on day 25 at time 16:16
Minimum temperature = -0.1°C on day 01 at time 05:47
Maximum humidity = 89% on day 06 at time 08:27
Minimum humidity = 14% on day 09 at time 18:12
Maximum dewpoint = 9.7°C on day 10 at time 14:48
Minimum dewpoint = -11.9°C on day 09 at time 21:17
Maximum pressure = 1019.0 mb on day 23 at time 09:17
Minimum pressure = 978.0 mb on day 05 at time 21:02
Maximum windspeed = 11.5 mph from 270°( W ) on day 16 at time 12:10
Maximum gust speed = 23.0 mph from 293°(WNW) on day 31 at time 12:44
Maximum heat index = 19.2°C on day 25 at time 16:16
Avg daily max temp :14.0°C
Avg daily min temp :6.7°C
Growing degrees days :63.7 GDD
Total windrun = 944.6miles
Frost days= 1
-----------------------------------
Daily rain totals
-----------------------------------
01.0 mm on day 2
24.6 mm on day 3
06.4 mm on day 6
28.6 mm on day 10
06.4 mm on day 11
02.1 mm on day 12
02.1 mm on day 13
02.1 mm on day 14
05.2 mm on day 15
09.5 mm on day 16
13.8 mm on day 17
09.5 mm on day 18
02.3 mm on day 22
01.0 mm on day 24
09.5 mm on day 27
04.4 mm on day 28
01.0 mm on day 29
09.5 mm on day 31

 LLTNP 105m asl