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TonyH

June 2012 Summaries And Statistics

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June 2012, Lampeter, Ceredigion, Wales

Very unsettled, exceptionally wet, quite cool and dull

Frequent rains in a very low pressure dominated month. Perhaps the wettest ever for this area, much wetter than 2007 (186mm), and the only comparable month I can find is June 1982 when 213mm fell at Carmarthen. Although a cool and quite a dull month, not as poor as further north and east. A remarkable month for rainfall, 3 days with over 1 inch falling, 5 with over 20mm, and 8 over 10mm.

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1st / 2nd: Warm with sunny intervals, rain later 2nd

3rd – 8th: Cool and very unsettled. An unusually deep Summer low brought periods of heavy rain during 7th and 8th, almost 60mm falling, and gale force winds 8th, which was especially cool, no higher than 11c during the day time.

9th – 13th: Relatively dry interlude, a few showers with some better sunny spells, and average temperatures.

14th – 17th: Another deep Summer low crossed the UK, bringing a second notably wet spell, this time with 70mm in 72 hours. Cool to very cool, dull and windy too.

18th – 20th: Mostly dry and bright with temperatures up to average, Rain late on 20th.

21st – 24th: Unsettled, rain at times, heavy 21st, mainly cloudy and rather windy and cool.

25th - 27th : Became warm and mostly dry with sunny spells

28th -30th: A warm humid morning 28th, but then cooled off to a rather cool end to the month, with rain or showers at times. Rather windy.

Stats

Total rainfall: 218.3mm

Wettest day: 33.2mm 7th

Rain days >0.2mm: 25

Wet days >1.0mm: 22

Days of heavy rain >10mm: 8

Mean temperature: 13.9c

Mean Max: 18.0c

Mean Min: 9.7c

High Max: 23.6c 27th

Low Max: 12.0c 8th

High min: 14.5c 28th

Low min: 5.1c 10th

Air frost: 0

Ground frost: 0

Mean RH: 87%

High RH: 100% various dates

Low RH: 50% 20th

Predominant wind directions: SE

Mean wind speed: 2.1mph

Mean pressure: 1009mbar

Max pressure: 1021mbar 1st

Min pressure: 980mbr 8th

Days with:

Hail: 0

Gale: 1

Thunder: 1

Fog: 3

Fog at 0900: 0

post-2595-0-88602700-1341142687_thumb.jp post-2595-0-77613900-1341142700_thumb.jp

Note to graphs: Maxima subject to 1c adjustments at times this month, this not apparent in graphs

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June 2012 was the 2nd wettest month I have recorded, only beaten by November 2009! It was the coolest June I have recorded, just beating 2008 by 0.02c! There were only 6 dry days and only 8 days got above 20c, with the hottest day coming on the plume day (28th).

For Warminster, Wiltshire ...

Average max = 18.11c (Highest = 26.6c on 28th)

Average min = 11.48c (Lowest = 7.0c on 13th)

Mean = 14.79c

Dry days = 6

Rain days = 24

Rainfall = 155.5mm

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June 2012: (Swindon, Wiltshire)

Total Rainfall: 138.4mm - Wettest I have ever seen recorded in my town, and almost 3 times the monthly average of 50mm

Average Max temp: 18C - 1C cooler than average

Average Min Temp: 9.9C - 0.1C cooler than average

Highest max: 26.4C

Lowest min: 4.4C

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It was the coolest June for a while here with the last several years seeing max temps of 27-28C whist this year only had a high of 22.7C.

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Actually here, last June was cooler, thanks to very cool nights, and we even had an air frost!

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hobart.jpg

HOBART ( pop 200,000 ) is capital of the Australian island state of Tasmania ( pop 510,000 - almost same size as Scotland ). Hobart is situated on an estuary 2 miles from the ocean and is backed by a 1270m/4200ft mountain range.

June - First month of winter

The focal point of the month was a prolonged, middle-of-the-road cold change towards the end which brought 9 straight days of below average maxima and minima, occasional showers, the first frosts, and snow at times settling to 500m/1800ft. This followed the first two thirds being mild and settled; and in balance was not enough to pull the average monthly temperature into negative anomoly territory. This being the 8th consecutive month above the 1981-2010 mean, the warmest decades on record in the capital.

Average maximum: 12.5 ( +0.1 )

Average minimum: 5.3 ( 0.0 )

Rainfall: 33mm ( Average 54mm )

Extremes in daily temperature

Highest maximum: 17.2 ( Record 20.6 in 1907 )

Lowest maximum: 8.0 ( Record 4.3 in 1985 )

Highest minimum: 9.5 ( Record 14.4 in 1957 )

Lowest minimum: 0.9 ( Record -2.8 in 1972 )

For all you snowlovers out there...

large.jpg

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A wet month with interesting temperature statistics with the Min showing above average and the Max showing below average leaving the mean just a touch above the long term value

Temperatures in degrees C with long term values in brackets

Mean=14.7(14.4)

Avge Min=10.8(9.5) coldest night=11th with 6.3 and warmest night=28th with 17.1

Avge Max=14.7(14.4) hottest day=27th with 25.9 and coldest day=3rd with 9.5

Total rainfall=72.6mm with the wettest day being 3rd with 18.0mm; the wettest June since 2007 which recorded 144.0mm, so barely half that exceptional month.

20 days with 0.2mm or more and 13 with 1.0mm or more

1 day with thunder, no fog, frosts or snow

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Here are my readings from one of the vilest months on record bad.gif

Mean Max: 13.4 (-2.7)

Mean Min: 8.2 (-0.5)

Highest Max: 19.0 (30th)

Lowest Max: 9.7 (15th & 16th)

Highest Min: 12.7 (30th)

Lowest Min: 2.7 (3rd)

Rainfall: 101.0mm (184%)

Rain Days: 23

Wet Days: 15

Wettest Day: 20.0mm (23rd)

Sunshine: 104.3hrs (61%)

Sunniest Day: 12.3hrs (30th)

Only three days reached the long term average max as this graph shows

post-11542-0-61498600-1341250679_thumb.p

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June 2012 - Colwyn Bay

Temperature -

Mean - 13.4C

Mean Maximum - 17.9C (+0.9)

Mean Minimum - 9.5C (-0.5)

Maximum - 23.4C

Minimum - 5.8C

Lowest Maximum - 11.4C

Highest Minimum - 14.7C

Rain

Total Rainfall - 127.0mm (216.7%)

Wettest Day - 8th - 21mm

Rain Days - 21

Wind

Highest Gust - 17mph

Average Speed - 0.9mph

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My statistics for central Reading in June 2012:

Average maximum: 18.1

Average minimum: 11.4

Average for month: 14.8

Highest maximum: 26.7 (June 28)

Lowest maximum: 12.0 (11)

Highest minimum: 17.2 (27)

Lowest minimum: 7.0 (13)

[Edit - just compared my temperatures with those recorded in Warminster by Andy Bown - I haven't been copying you, Andy - honest whistling.gif The similarity is remarkable.]

No frosts or thunder recorded.

Rainfall: no data available for this site; estimate using Reading University's data is around 120mm for the month.

A rather cool and exceptionally wet month, with only 7 dry days and around 240% of average rainfall. Average minimum was just above normal but maxima were around 2 deg C colder than normal. The maximum of 12.0 on the 11th was the lowest recorded in June at this location (since 2002).

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My summary for period 01/06/2012 to 30/06/2012 for Warwick

Temperature (°C):

Mean (1 minute) 14.3

Mean (min+max) 14.2

Mean Minimum 10.1

Mean Maximum 18.3

Minimum 4.2 on 10/06/2012

Maximum 26.1 on 28/06/2012

Highest Minimum 16.1 on 27/06/2012

Lowest Maximum 10.7 on 03/06/2012

Air frosts 0

Rainfall (mm):

Total for period 122.8

Wettest day 27.0 on 03/06/2012

High rain rate 36.8 day 30/06/2012

Rain days 23

Wind (mph):

Highest Gust 23.2 on 15/06/2012

Average Speed 1.3

Wind Run 875.6 miles

Gale days 0

Pressure (hPa):

Maximum 1020.49 on 01/06/2012

Minimum 986.97 on 08/06/2012

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