Daily Report for 17th June 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.0 °C (+0.8) 04:56 10.4 °C (-0.4) 16.0 °C (+4.8), 2017 8.3 °C (-2.9), 2010
Maximum Temperature 21.8 °C (+1.4) 14:52 19.8 °C (+0.2) 30.1 °C (+9.7), 2017 14.8 °C (-5.6), 2011
Mean Temperature 16.6 °C (+1.1) 14.8 °C (-0.1) 23.9 °C, 2017 12.5 °C, 2011
Minimum Humidity 46% 18:26 49% 72%, 2011 35%, 2010
Maximum Humidity 81% 06:17 87% 95%, 2011 77%, 2015
Mean Humidity 66% 69% 86%, 2011 59%, 2017
Minimum Pressure 1013 hPa 17:41 1012 hPa 1026 hPa, 2014 995 hPa, 2011
Maximum Pressure 1022 hPa 02:10 1017 hPa 1028 hPa, 2014 1011 hPa, 2011
Mean Pressure 1018 hPa 1015 hPa 1027 hPa, 2014 1003 hPa, 2011
Mean Wind Speed n/a (-4.4) 0.0 mph (-4.4) 7.1, 2015 2.2, 2017
Maximum Wind Speed n/a 0.0 mph 16.8, 2015 8.8, 2017
Maximum Gust n/a 0.0 mph 26.6, 2015 11.5, 2017
Mean Wind Direction n/a
Rainfall trace 34.6 mm (111%) 7.6, 2011
Maximum Hourly Rain n/a 5.5, 2016
Maximum 10-min Rain n/a 3.1, 2016
Maximum Rain Rate n/a 54, 2016
Minimum Dew Point 6.7 °C 18:44 5.9 °C 12.4 °C, 2017 3.8 °C, 2014
Maximum Dew Point 12.8 °C 10:03 11.6 °C 16.6 °C, 2017 9.6 °C, 2014
Mean Dew Point 9.9 °C 8.8 °C 15.0 °C, 2017 8.0 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.0 °C 10.6 °C 16.0 °C, 2017 8.3 °C, 2010
Day Maximum (09-21) 21.8 °C 19.8 °C 30.1 °C, 2017 14.8 °C, 2011
Max 10m Temp Rise 0.7 °C 09:45 0.8 °C 0.8 °C, 2012 0.3 °C, 2011
Max 1hr Temp Rise 2.2 °C 08:57 2.5 °C 2.6 °C, 2015 1.2 °C, 2011
Max 1hr Hum Rise 15% 20:27 9% 17%, 2014 7%, 2011
Max 10m Temp Fall 0.5 °C 19:03 0.6 °C 0.8 °C, 2016 0.3 °C, 2013
Max 1hr Temp Fall 1.3 °C 17:23 1.8 °C 2.4 °C, 2017 1.1 °C, 2013
Max 1hr Hum Fall 7% 10:41 11% 13%, 2018 7%, 2009
Max 10m Wind Speed n/a 0.0 mph 12.4, 2015 5.9, 2017
Minimum Feels-like n/a 0.0 °C 18.5, 2017 6.9, 2010
Maximum Feels-like n/a 0.0 °C 35, 2017 16.2, 2011
Mean Feels-like n/a 0.0 °C 27.8, 2017 13.8, 2011
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.8 °C (+0.5) 9.5 °C (+0.6) 15.0 °C (+5.7), 2010 4.9 °C (-4.4), 2011
Humidity Range 35% 38% 50%, 2010 23%, 2011
Pressure Range 9 hPa 5 hPa 16 hPa, 2011 2 hPa, 2014
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3 [20%]95 hrs (88%) [37%] 13 [86%], 2010 0.3 [2%], 2011
Wet Hours 0.132 hrs (154%) [7.9%] 7, 2011 0, 2010
Cloud Cover not available
Events None
Comments 18-20 Brief SLight Showers
Extra Comments
Issues None known
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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Daily Graph of Conditions

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