Daily Report for 21st August 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 17.8 °C (+4.7) 07:02 15.1 °C (+1.6) 19.0 °C (+5.9), 2010 7.7 °C (-5.4), 2014
Maximum Temperature 26.0 °C (+3.8) 17:28 25.0 °C (+2.5) 26.0 °C (+3.8), 2018 18.4 °C (-3.8), 2014
Mean Temperature 21.7 °C (+4.3) 20.1 °C (+2.1) 21.7 °C, 2018 13.5 °C, 2014
Minimum Humidity 55% 15:36 50% 79%, 2017 34%, 2013
Maximum Humidity 87% 07:12 89% 91%, 2010 84%, 2013
Mean Humidity 73% 70% 85%, 2010 57%, 2013
Minimum Pressure 1018 hPa 18:41 1015 hPa 1021 hPa, 2013 1009 hPa, 2016
Maximum Pressure 1021 hPa 08:48 1021 hPa 1027 hPa, 2013 1017 hPa, 2014
Mean Pressure 1020 hPa 1018 hPa 1024 hPa, 2013 1014 hPa, 2014
Mean Wind Speed 3.2 mph (-0.8) 4.1 mph (+0.1) 11.1 mph, 2016 1.9 mph, 2017
Maximum Wind Speed 9.1 mph 16:59 12.2 mph 21.5 mph, 2016 7.2 mph, 2017
Maximum Gust 15.0 mph 13:00 19.6 mph 35.5 mph, 2016 10.5 mph, 2017
Mean Wind Direction SW
Rainfall 0.0 mm 36.4 mm (101%) 4.3 mm, 2017
Maximum Hourly Rain n/a 1.3, 2017
Maximum 10-min Rain n/a 0.3, 2009
Maximum Rain Rate n/a 3, 2017
Minimum Dew Point 15.1 °C 23:52 11.7 °C 16.8 °C, 2010 4.2 °C, 2014
Maximum Dew Point 17.5 °C 12:53 16.4 °C 18.3 °C, 2010 9.1 °C, 2014
Mean Dew Point 16.3 °C 14.0 °C 17.6 °C, 2010 6.3 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 17.8 °C 07:02 15.4 °C 19.0 °C, 2010 7.7 °C, 2014
Day Maximum (09-21) 26.0 °C 17:28 24.9 °C 26.0 °C, 2018 18.4 °C, 2014
Max 10m Temp Rise 0.5 °C 10:17 0.6 °C 1.1 °C, 2009 0.2 °C, 2017
Max 1hr Temp Rise 1.7 °C 12:47 2.5 °C 3.8 °C, 2009 0.8 °C, 2017
Max 1hr Hum Rise 8% 20:07 11% 18%, 2016 3%, 2017
Max 10m Temp Fall 0.4 °C 19:28 0.6 °C 1.2 °C, 2009 0.1 °C, 2017
Max 1hr Temp Fall 1.8 °C 20:18 2.2 °C 2.7 °C, 2009 0.4 °C, 2017
Max 1hr Hum Fall 7% 08:13 13% 23%, 2009 2%, 2017
Max 10m Wind Speed 6.8 mph 12:23 9.0 mph 16.6 mph, 2016 5.9 mph, 2017
Minimum Feels-like 21.9 °C 06:52 17.7 °C 24.3 °C, 2010 6.0 °C, 2014
Maximum Feels-like 31.2 °C 17:22 28.8 °C 31.2 °C, 2018 18.4 °C, 2014
Mean Feels-like 26.5 °C 23.5 °C 26.5 °C, 2018 13.6 °C, 2014
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.2 °C (-0.9) 9.9 °C (+0.9) 14.1 °C (+5.0), 2013 3.1 °C (-6.0), 2010
Humidity Range 32% 39% 50%, 2013 7%, 2017
Pressure Range 3 hPa 5 hPa 12 hPa, 2016 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9 [69%]147 hrs (117%) [52%] 11 [85%], 2013 0 [0%], 2017
Wet Hours 023 hrs (89%) [4.6%] 7, 2017 0, 2010
Cloud Cover am: Partly Cloudy
pm: Mostly Sunny transitioned to 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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Daily Graph of Conditions

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