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JUNE 2007 daily and monthly summary

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JUNE 2007
July 2007

1st - 7th
HP to SE and NE as UK lies in a col. Sunny spells from weekend 1st - 3rd though clouding over by mid-afternoon. Conditions become rather bland as LP settles over France with a mixture of cloud and some sunny spells.
8th - 14th
Overnight on 7th very thundery near the SE coasts and North Sea, clips this area with just thundery showers in early morning but E Kent and E Sussex get very heavy rain. Continues to feel warm, mainly due to high humidity and dry with cloudy mornings and brighter afternoons. More showers overnight on the 13/14th.
22nd - 30th
Unsettled and showery. Thunder on 22nd and 23rd, persistent rain on 24th starting just after dawn. Turning cooler with spells of sunshine few and far between. Rain early morning 29th followed by sunshine with frequent heavy showers. 30th another dismal Saturday with intermittent rain.

 JUNE 2007 - MONTHLY SUMMARY
 TEMPERATURE
 Average Maximum 21.0
ºc 
 (+0.6)*
 Average Minimum 12.3
ºc 
 (+1.3)*
 Monthly Mean 16.0
ºc 
 
 Highest Maximum 26.8
ºc 
 (19rd)
 Lowest Minimum 8.6
ºc 
 (22nd)
 Days Max < 20 ºC 10
 
 Days Max >= 25 ºC 3
 
   
 
 AMBIENT TEMPERATURE
 Low Wind Chill 8.5
ºc 
 (22nd)
 Low Heat Index (THW) 8.5
ºc 
 (22nd)
 High Heat Index (THW) 26.7
ºc 
 (19th)
 High Sun Index (THSW) 32.9
ºc 
 (19th)
    
 
 RAINFALL
 Monthly Total 73.9
 mm
( 171%)*
 Rainy Days (=>0.2mm) 16
( +5 )*
 Inc days =>1mm) 13
 
 Dry Days 14
 
 Highest Daily Total 16.3
 mm
 (24th)
 Highest Rain Rate 59.4
 mm/hr
 (19th)
 Days with thunder 4
 
   
 EVAPO-TRANSPIRATION
 Highest Daily 4.1
 mm (10th)
 Monthly Total 82.3
 mm
 WIND
 Monthly Average 1.6  mph  
 Highest Gust 22  mph (26th)
 Dominant Directions SSW  (46%)
NNW  (15%)
N  (10%)
SE  (  7%)
   
     
 SUNSHINE †
 Sunniest Day 9.3  hrs (10th)
 Monthly Sunshine 120.1  Hours
 Peak Solar Rad. 1249  w/m² (20th)
 Total Solar Energy 10869  Langleys
 
   
 DEWPOINT
 Average at 14.00h 11.8 ºc
 Highest Reading 16.8  (19th)
 Lowest Reading 3.6  (27th)
 RELATIVE HUMIDITY
 Average at 14.00h 61 %
 Lowest Reading 35 % (2nd)
 Monthly Average 73 %
 BAROMETER
 Monthly Mean 1011.0  hPa  
 Highest Reading 1024.7  hPa  ( 2nd)
 Lowest Reading 993.9  hPa  (25th)
* Compared to average since 1984
‡ SUN:
Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is obstructed early morning and evening. The sensor receives only 75% of total possible daily sunshine exposure this month. There is no allowance for sunshine by visual observation only, so the figures above can be very significantly less than the actual daily sunshine duration.
THW = Shaded Heat Index calculated with cooling/warming effect of wind and humidity to give an apparent temperature.
THSW = Unshaded Heat Index calculated with cooling/warming effect of wind, humidity and full direct sunshine to give an apparent temperature.
EVAPO-TRANSPIRATION is drying effect due to sun and wind, and is equivalent to "negative rainfall"

   DAILY STATS JUNE 2007
 
TEMPERATURE ºc
HUMIDITY
SUN ‡
PRESSURE
RAINFALL
WIND SPEED
DIRECTION
DATE
Minimum
(21-09h)
Maximum
(09-21h)
RH %
at 14.00
Dewpoint ºc
at 14.00
Bright
sun hrs
hPa   †
at 14.00
Day Total
(mm)
Average
(mph)
High Gust
(mph)
Dominant
(Compass)
                   
1st
11.5 22.9 50 10.7 5.7 1017.8 rs 0.0 0.1 7 SE
2nd
8.7 24.9 43 11.2 5.5 1023.7 fs 0.0 0.2 7 SE
3rd
11.2 25.5 49 13.5 5.3 1021.0 fs 0.0 0.2 11 SE
4th
11.6 21.2 61 13.0 1.5 1022.6 st 0.0 0.6 12 NNW
5th
11.8 21.2 54 11.2 4.3 1021.3 fs 0.0 1.4 16 NNW
6th
11.1 19.4 54 9.6 5.7 1019.4 fs 0.0 1.9 13 NNW
7th
11.6 22.9 61 13.7 3.2 1017.4 fs 0.0 1.0 10 NNW
8th
12.6 22.6 66 15.1 5.7 1018.3 st 6.3 0.6 10 NNW
9th
14.6 25.1 54 14.0 2.8 1017.0 fs 0.0 0.1 6 N
10th
12.9 24.7 53 13.8 9.3 1016.0 fs 0.0 0.3 10 NNW
11th
14.7 21.6 71 13.8 1.8 1014.5 fs 0.0 0.1 6 SE
12th
13.9 23.2 53 12.4 4.3 1010.5 f 0.0 1.3 14 SSW
13th
12.6 24.0 47 11.4 4.5 1006.2 fs 0.5 0.8 13 SSW
14th
14.4 24.3 56 13.9 1.8 1000.6 fs 1.8 0.4 12 SSW
15th
14.8 20.0 70 12.2 6.0 1000.0 st 1.5 2.3 16 SSW
16th
12.8 18.6 72 11.9 4.8 1001.4 st 3.0 3.3 20 SSW
17th
13.4 20.8 55 10.9 3.2 1003.7 fs 1.3 1.5 12 SSW
18th
12.6 19.7 64 10.9 4.7 1007.9 rs 1.0 2.2 20 SSW
19th
10.9 26.8 48 14.7 5.0 1007.8 f 7.4 0.9 19 ESE
20th
13.3 21.6 53 10.3 6.5 1011.7 st 0.0 3.1 19 SSW
21st
13.4 20.6 54 10.4 5.0 1010.0 fs 0.0 2.3 18 SSW
22nd
13.7 20.1 60 11.4 4.3 1004.4 fs 8.1 2.1 18 SSW
23rd
13.8 20.5 68 12.0 3.2 1008.9 rs 1.8 2.3 17 SSW
24th
12.6 15.0 81 11.6 0.5 1006.7 fs 16.3 1.3 11 SSW
25th
11.8 15.3 83 10.3 1.7 995.8 fs 5.1 2.8 18 SSW
26th
10.6 15.3 53 4.9 2.2 1008.6 st 0.5 3.0 22 N
27th
8.6 17.2 61 8.4 1.3 1005.8 fs 0.8 2.4 20 SSW
28th
9.1 18.4 55 8.3 6.3 1010.1 fs 0.0 3.7 20 SSW
29th
12.9 19.1 82 14.4 4.0 1006.6 st 12.7 4.7 21 SSW
30th
12.4 17.4 88 14.9 0.0 1011.6 fs 5.8 1.6 14 SSW
                     
‡ SUN: Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is rather limited. The sensor receives approx 75% of total possible sunshine exposure this month, and there is no allowance for sunshine by visual observation only, so the figures above can be very significantly less than the actual daily sunshine duration.
† Barometer trend (previous 3 hours) : f = falling, st = steady, r = rising; q = quickly, s = slowly