Weather Data - June 2009

June 2009
Times indicate the end of a measurement period (BST)
Maximum Temperature 33 ēC 02-Jun-09    2:30 PM
Minimum Temperature 3.4 ēC 08-Jun-09    5:00 AM
Mean (15 min) 16.3 ēC 1.9 from average
Mean (Max Min) 17.4 ēC 3.0 from average  (calculated from 0901 to 0900 GMT data)
Mean Max 24.6 ēC 6.6 from average  (calculated from 0901 to 0900 GMT data)
Mean Min 10.3 ēC 0.5 from average  (calculated from 0901 to 0900 GMT data)
Lowest Max 12.1 ēC 06-Jun-09
Highest Min 15.7 ēC 01-Jul-09
Air Frosts 0 0 hours of Frost duration
Maximum Station Pressure 1028 hPa 22-Jun-09    9:45 AM
Minimum Station Pressure 997 hPa 07-Jun-09    3:45 AM
Mean 1017.4 hPa
Mean of 09Z values 1017.3 hPa
Rainfall 44.1 mm 67.8% of average
Wettest 24hr 27.6 mm 06-Jun-09 7:30 PM
Wettest Calendar Day 27.6 mm 06-Jun-09 (calculated from 0901 to 0900 following day)
Rain Days ( > 0.3mm) 8 days (calculated from 0901 to 0900 GMT data)
Wet Days (>1.0mm) 3 days (calculated from 0901 to 0900 GMT data)
Wet Days (>5.0mm) 2 days (calculated from 0901 to 0900 GMT data)
Max 15min accum 3.9 mm 10-Jun-09    5:45 PM
Rain Duration 11.75 hours
Longest Dry period 10.74 days 28-Jun-09 11:15 AM 257.75 (hours)
Longest Wet period (>0.3mm / 15 mins) 6.25 hours 06-Jun-09 5:00 PM
Sunshine Hours (>30klux) 198.75 hours 101.4% of average
Max Sunshine 10.00 hours 02-Jun-09 (calculated from 0901 to 0900 following day)
Sunshine Hours (>50%) 172.5 hours 88.0% of average
Max Sunshine 10.50 hours 02-Jun-09 (calculated from 0901 to 0900 following day)
Brightest Calendar Day 34.2 klux 15-Jun-09 (calculated from 0901 to 0900 following day)
Sunless Days 4 days (calculated from 0901 to 0900 GMT data)
Maximum Brightness (klux) 123 klux 20-Jun-09    1:15 PM
Average Wind Speed #DIV/0! knots #DIV/0! mph
Maximum Wind Speed 0 knots #N/A #N/A 0.0 mph
Days with wind from: (calculated from 0901 to 0900 GMT data)
Calm 30
N 0
NE 0
E 0
SE 0
S 0
SW 0
W 0
NW 0
Average RH (at 09Z) 75.1

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