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 of the longest continuous period at that extreme value.
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 (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
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Daily Graph of Conditions

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