Daily Report for 25th June 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.9 °C (+1.2) 03:10 10.8 °C (-0.2) 15.5 °C (+3.8), 2017 8.3 °C (-3.4), 2013
Maximum Temperature 26.8 °C (+5.7) 15:28 20.4 °C (+0.4) 29.6 °C (+8.5), 2018 20.2 °C (-0.9), 2013
Mean Temperature 19.3 °C (+3.5) 15.4 °C (+0.1) 22.4 °C, 2018 15.0 °C, 2013
Minimum Humidity 40% 16:10 47% 58%, 2011 25%, 2018
Maximum Humidity 87% 07:14 85% 95%, 2011 69%, 2010
Mean Humidity 65% 67% 80%, 2011 51%, 2018
Minimum Pressure 1011 hPa 19:56 1015 hPa 1026 hPa, 2013 1011 hPa, 2009
Maximum Pressure 1018 hPa 01:15 1020 hPa 1030 hPa, 2013 1015 hPa, 2017
Mean Pressure 1014 hPa 1017 hPa 1029 hPa, 2013 1014 hPa, 2017
Mean Wind Speed n/a (-4.4) 0.0 mph (-4.4) 6.7, 2011 1.9, 2018
Maximum Wind Speed n/a 0.0 mph 16.9, 2016 7, 2018
Maximum Gust n/a 0.0 mph 24.2, 2016 10.9, 2013
Mean Wind Direction n/a
Rainfall 0.0 mm 34.7 mm (76%) 3.3 mm, 2011
Maximum Hourly Rain n/a 2.2, 2016
Maximum 10-min Rain n/a 1.4, 2016
Maximum Rain Rate n/a 36, 2016
Minimum Dew Point 8.4 °C 00:10 6.1 °C 10.2 °C, 2017 3.6 °C, 2013
Maximum Dew Point 15.5 °C 11:50 11.7 °C 16.2 °C, 2011 8.7 °C, 2013
Mean Dew Point 11.9 °C 8.8 °C 13.6 °C, 2011 5.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.9 °C 11.0 °C 15.5 °C, 2017 8.3 °C, 2013
Day Maximum (09-21) 26.8 °C 20.4 °C 29.6 °C, 2018 20.2 °C, 2013
Max 10m Temp Rise 0.7 °C 11:30 0.8 °C 0.8 °C, 2012 0.4 °C, 2011
Max 1hr Temp Rise 3.0 °C 12:02 2.5 °C 3.0 °C, 2009 1.4 °C, 2011
Max 1hr Hum Rise 10% 21:19 8% 21%, 2016 5%, 2011
Max 10m Temp Fall 0.5 °C 13:25 0.5 °C 1.1 °C, 2016 0.4 °C, 2014
Max 1hr Temp Fall 2.0 °C 19:16 1.7 °C 3.1 °C, 2016 1.4 °C, 2012
Max 1hr Hum Fall 16% 12:56 12% 16%, 2009 6%, 2010
Max 10m Wind Speed n/a 0.0 mph 13.4, 2016 5, 2010
Minimum Feels-like n/a 0.0 °C 17.4, 2017 7.2, 2013
Maximum Feels-like n/a 0.0 °C 30.5, 2018 20.2, 2013
Mean Feels-like n/a 0.0 °C 23.9, 2018 15, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 13.9 °C (+4.5) 9.6 °C (+0.6) 16.7 °C (+7.3), 2018 6.8 °C (-2.6), 2017
Humidity Range 47% 38% 61%, 2018 26%, 2010
Pressure Range 7 hPa 5 hPa 7 hPa, 2009 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9 [59%]152 hrs (95%) [40%] 14 [93%], 2018 1 [7%], 2017
Wet Hours 033 hrs (108%) [5.6%] 5, 2011 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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