Daily Report for 13th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.8 °C (-4.6) 06:55 11.4 °C (-0.3) 17.7 °C (+6.3), 2016 6.8 °C (-4.6), 2018
Maximum Temperature 19.6 °C (+0.4) 14:43 21.0 °C (+0.8) 32.0 °C (+12.8), 2016 16.3 °C (-2.9), 2009
Mean Temperature 13.2 °C (-2.1) 16.1 °C (+0.2) 24.8 °C, 2016 13.2 °C, 2009
Minimum Humidity 41% 13:51 53% 91%, 2013 36%, 2016
Maximum Humidity 97% 08:12 91% 98%, 2013 78%, 2011
Mean Humidity 72% 74% 96%, 2013 62%, 2016
Minimum Pressure 1022 hPa 18:53 1019 hPa 1027 hPa, 2009 993 hPa, 2017
Maximum Pressure 1025 hPa 00:00 1023 hPa 1029 hPa, 2009 1002 hPa, 2017
Mean Pressure 1023 hPa 1021 hPa 1028 hPa, 2009 999 hPa, 2017
Mean Wind Speed 2.1 mph (-1.8) 3.7 mph (-0.2) 10.2 mph, 2017 2.1 mph, 2018
Maximum Wind Speed 9.9 mph 12:22 11.6 mph 24.2 mph, 2017 7.8 mph, 2013
Maximum Gust 13.8 mph 12:21 18.2 mph 41.5 mph, 2017 12.7 mph, 2013
Mean Wind Direction W
Rainfall 0.0 mm 4.0 mm (16%) 32.0 mm, 2013
Maximum Hourly Rain n/a 9, 2013
Maximum 10-min Rain n/a 2.2, 2013
Maximum Rain Rate n/a 42, 2013
Minimum Dew Point 5.3 °C 13:51 8.9 °C 14.7 °C, 2016 4.4 °C, 2012
Maximum Dew Point 10.4 °C 09:52 13.5 °C 17.7 °C, 2016 9.0 °C, 2012
Mean Dew Point 7.6 °C 11.0 °C 16.3 °C, 2016 6.3 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.8 °C 06:56 11.6 °C 17.7 °C, 2016 6.8 °C, 2018
Day Maximum (09-21) 19.6 °C 15:00 20.8 °C 32.2 °C, 2016 16.3 °C, 2009
Max 10m Temp Rise 0.8 °C 08:20 0.6 °C 1.1 °C, 2016 0.2 °C, 2013
Max 1hr Temp Rise 3.9 °C 09:06 2.5 °C 3.9 °C, 2018 0.8 °C, 2013
Max 1hr Hum Rise 11% 20:26 9% 21%, 2017 3%, 2013
Max 10m Temp Fall 0.4 °C 17:28 0.4 °C 1.6 °C, 2017 0.3 °C, 2010
Max 1hr Temp Fall 2.0 °C 20:28 1.7 °C 2.8 °C, 2017 0.9 °C, 2010
Max 1hr Hum Fall 18% 09:29 12% 22%, 2017 1%, 2013
Max 10m Wind Speed 6.9 mph 12:27 8.3 mph 18.4 mph, 2017 6.4 mph, 2013
Minimum Feels-like 6.1 °C 06:35 12.1 °C 23.4 °C, 2016 5.5 °C, 2012
Maximum Feels-like 19.7 °C 14:44 23.3 °C 36.9 °C, 2016 17.6 °C, 2009
Mean Feels-like 13.5 °C 17.9 °C 29.6 °C, 2016 13.1 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 12.8 °C (+4.9) 9.5 °C (+1.2) 14.3 °C (+6.4), 2016 4.8 °C (-3.1), 2013
Humidity Range 56% 38% 56%, 2018 7%, 2013
Pressure Range 3 hPa 4 hPa 10 hPa, 2015 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10.8 [93%]80 hrs (128%) [52%] 10.8 [93%], 2018 0 [0%], 2013
Wet Hours 08 hrs (45%) [2.6%] 15, 2013 0, 2009
Cloud Cover am: Sunny
pm: Sunny transitioned to Mostly 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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