Daily Report for 23rd June 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.2 °C (+1.7) 04:35 10.7 °C (-0.2) 18.2 °C (+6.7), 2016 10.9 °C (-0.6), 2012
Maximum Temperature 24.2 °C (+3.3) 15:27 20.0 °C (+0.1) 28.3 °C (+7.4), 2010 17.2 °C (-3.7), 2013
Mean Temperature 18.2 °C (+2.5) 15.1 °C (-0.0) 20.9 °C, 2010 14.9 °C, 2013
Minimum Humidity 31% 16:34 48% 85%, 2016 31%, 2009
Maximum Humidity 75% 02:21 86% 91%, 2016 69%, 2010
Mean Humidity 55% 68% 88%, 2016 50%, 2010
Minimum Pressure 1026 hPa 19:19 1015 hPa 1026 hPa, 2009 1005 hPa, 2013
Maximum Pressure 1030 hPa 11:39 1019 hPa 1030 hPa, 2009 1016 hPa, 2013
Mean Pressure 1028 hPa 1017 hPa 1028 hPa, 2009 1009 hPa, 2013
Mean Wind Speed n/a (-4.4) 0.0 mph (-4.4) 7.9, 2013 0.7, 2014
Maximum Wind Speed n/a 0.0 mph 17, 2013 7.4, 2014
Maximum Gust n/a 0.0 mph 25.9, 2013 10.2, 2014
Mean Wind Direction n/a
Rainfall 0.0 mm 34.7 mm (82%) 30.4 mm, 2016
Maximum Hourly Rain n/a 11.5, 2016
Maximum 10-min Rain n/a 4.1, 2016
Maximum Rain Rate n/a 102, 2016
Minimum Dew Point 4.4 °C 21:37 6.0 °C 15.1 °C, 2016 4.4 °C, 2009
Maximum Dew Point 11.3 °C 12:53 11.5 °C 19.2 °C, 2016 8.4 °C, 2015
Mean Dew Point 8.2 °C 8.7 °C 17.5 °C, 2016 7.4 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.2 °C 10.9 °C 18.5 °C, 2016 10.9 °C, 2012
Day Maximum (09-21) 24.2 °C 20.0 °C 28.3 °C, 2010 17.2 °C, 2013
Max 10m Temp Rise 0.7 °C 10:06 0.8 °C 1.5 °C, 2016 0.5 °C, 2010
Max 1hr Temp Rise 2.9 °C 13:16 2.4 °C 2.9 °C, 2009 1.4 °C, 2013
Max 1hr Hum Rise 9% 22:35 8% 17%, 2013 6%, 2010
Max 10m Temp Fall 0.5 °C 18:24 0.5 °C 0.7 °C, 2012 0.3 °C, 2017
Max 1hr Temp Fall 2.2 °C 20:03 1.7 °C 2.6 °C, 2013 1.3 °C, 2016
Max 1hr Hum Fall 11% 10:26 12% 12%, 2012 6%, 2016
Max 10m Wind Speed n/a 0.0 mph 12.8, 2013 4.5, 2014
Minimum Feels-like n/a 0.0 °C 22.9, 2016 10.9, 2015
Maximum Feels-like n/a 0.0 °C 30.4, 2010 18, 2013
Mean Feels-like n/a 0.0 °C 25.3, 2016 15.5, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 11.0 °C (+1.6) 9.2 °C (+0.2) 14.5 °C (+5.1), 2010 3.3 °C (-6.1), 2016
Humidity Range 44% 38% 48%, 2014 6%, 2016
Pressure Range 4 hPa 5 hPa 11 hPa, 2013 3 hPa, 2017
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 12 [79%]131 hrs (89%) [38%] 14.5 [96%], 2010 0.1 [1%], 2016
Wet Hours 033 hrs (117%) [6%] 12, 2016 0, 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues Tmax corrected as unreliable
Observer Absent? No
Notes
Times of extremes are computed using the midpoint time of the extremum (if the value persisted for >1 minute).
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations; their reliablity is questionable and they are provided for interest only.
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