Daily Report for 17th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 17.3 °C (+6.2) 02:57 11.9 °C (+0.2) 17.3 °C (+6.2), 2018 7.4 °C (-3.7), 2010
Maximum Temperature 24.8 °C (+6.3) 15:19 21.1 °C (+1.3) 24.8 °C (+6.3), 2018 13.4 °C (-5.1), 2013
Mean Temperature 20.3 °C (+6.3) 16.3 °C (+0.8) 20.3 °C, 2018 11.1 °C, 2013
Minimum Humidity 36% 15:48 52% 79%, 2016 36%, 2018
Maximum Humidity 88% 03:17 90% 95%, 2013 84%, 2009
Mean Humidity 66% 73% 86%, 2014 65%, 2012
Minimum Pressure 1008 hPa 23:51 1019 hPa 1021 hPa, 2009 987 hPa, 2015
Maximum Pressure 1019 hPa 00:15 1023 hPa 1023 hPa, 2009 1005 hPa, 2013
Mean Pressure 1015 hPa 1021 hPa 1022 hPa, 2009 999 hPa, 2015
Mean Wind Speed 5.9 mph (+2.0) 4.1 mph (+0.2) 8.3 mph, 2016 2.2 mph, 2017
Maximum Wind Speed 14.7 mph 13:40 12.3 mph 20.5 mph, 2016 8.1 mph, 2014
Maximum Gust 23.0 mph 13:32 19.0 mph 30.6 mph, 2016 12.5 mph, 2014
Mean Wind Direction SSW
Rainfall 0.0 mm 4.0 mm (12%) 5.5 mm, 2013
Maximum Hourly Rain n/a 2.4, 2013
Maximum 10-min Rain n/a 0.6, 2013
Maximum Rain Rate n/a 4.5, 2013
Minimum Dew Point 8.4 °C 15:49 8.9 °C 13.9 °C, 2014 2.8 °C, 2010
Maximum Dew Point 16.1 °C 11:00 13.5 °C 16.1 °C, 2018 8.4 °C, 2010
Mean Dew Point 13.3 °C 11.2 °C 14.8 °C, 2014 5.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 17.3 °C 02:57 12.0 °C 17.3 °C, 2018 7.8 °C, 2013
Day Maximum (09-21) 24.8 °C 15:19 21.0 °C 24.8 °C, 2018 13.4 °C, 2013
Max 10m Temp Rise 0.5 °C 09:14 0.6 °C 0.7 °C, 2013 0.3 °C, 2016
Max 1hr Temp Rise 1.8 °C 09:59 2.5 °C 2.8 °C, 2010 0.8 °C, 2016
Max 1hr Hum Rise 14% 16:49 9% 14%, 2018 4%, 2014
Max 10m Temp Fall 0.3 °C 15:55 0.4 °C 0.5 °C, 2010 0.2 °C, 2014
Max 1hr Temp Fall 1.2 °C 19:16 1.6 °C 2.6 °C, 2010 0.8 °C, 2014
Max 1hr Hum Fall 11% 13:11 12% 26%, 2012 2%, 2016
Max 10m Wind Speed 10.5 mph 16:22 8.8 mph 14.0 mph, 2016 6.5 mph, 2014
Minimum Feels-like 20.3 °C 23:54 12.8 °C 20.3 °C, 2018 5.1 °C, 2013
Maximum Feels-like 27.5 °C 12:39 23.4 °C 27.5 °C, 2018 15.4 °C, 2010
Mean Feels-like 23.3 °C 18.2 °C 23.3 °C, 2018 11.3 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.5 °C (+0.1) 9.3 °C (+1.1) 8.3 °C (+0.9), 2011 3.9 °C (-3.5), 2014
Humidity Range 52% 39% 52%, 2018 10%, 2016
Pressure Range 11 hPa 4 hPa 20 hPa, 2015 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [88%]105 hrs (130%) [52%] 10 [88%], 2018 0 [0%], 2016
Wet Hours 08 hrs (34%) [2%] 5, 2013 0, 2009
Cloud Cover am: Mostly Cloudy transitioned to Sunny
pm: Sunny
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
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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