Daily Report for 17th September 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.7 °C (-1.4) 07:17 11.3 °C (-0.3) 17.3 °C (+6.2), 2018 7.4 °C (-3.7), 2010
Maximum Temperature 18.8 °C (+0.3) 15:09 20.0 °C (+0.2) 24.8 °C (+6.3), 2018 13.4 °C (-5.1), 2013
Mean Temperature 14.2 °C (-0.5) 15.6 °C (-0.0) 20.3 °C, 2018 11.1 °C, 2013
Minimum Humidity 49% 15:11 53% 79%, 2016 36%, 2018
Maximum Humidity 91% 02:29 87% 95%, 2013 84%, 2009
Mean Humidity 69% 72% 86%, 2014 65%, 2012
Minimum Pressure 1024 hPa 00:12 1020 hPa 1024 hPa, 2019 987 hPa, 2015
Maximum Pressure 1029 hPa 23:00 1027 hPa 1029 hPa, 2019 1005 hPa, 2013
Mean Pressure 1026 hPa 1024 hPa 1026 hPa, 2019 999 hPa, 2015
Mean Wind Speed 3.1 mph (-0.8) 4.1 mph (+0.2) 8.3 mph, 2016 2.2 mph, 2017
Maximum Wind Speed 9.0 mph 15:54 11.9 mph 20.5 mph, 2016 8.1 mph, 2014
Maximum Gust 15.0 mph 16:49 19.7 mph 30.6 mph, 2016 12.5 mph, 2014
Mean Wind Direction NNE
Rainfall 0.0 mm 6.0 mm (19%) 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 6.2 °C 23:41 7.3 °C 13.9 °C, 2014 2.8 °C, 2010
Maximum Dew Point 12.0 °C 00:08 13.2 °C 16.1 °C, 2018 8.4 °C, 2010
Mean Dew Point 8.4 °C 10.4 °C 14.8 °C, 2014 5.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 9.7 °C 07:18 11.4 °C 17.3 °C, 2018 7.8 °C, 2013
Day Maximum (09-21) 18.8 °C 15:25 20.0 °C 24.8 °C, 2018 13.4 °C, 2013
Max 10m Temp Rise 0.5 °C 08:15 0.6 °C 0.7 °C, 2013 0.3 °C, 2016
Max 1hr Temp Rise 2.3 °C 08:53 2.4 °C 2.8 °C, 2010 0.8 °C, 2016
Max 1hr Hum Rise 7% 02:07 10% 14%, 2018 4%, 2014
Max 10m Temp Fall 0.4 °C 01:05 0.5 °C 0.5 °C, 2010 0.2 °C, 2014
Max 1hr Temp Fall 2.0 °C 01:37 1.7 °C 2.6 °C, 2010 0.8 °C, 2014
Max 1hr Hum Fall 11% 03:22 11% 26%, 2012 2%, 2016
Max 10m Wind Speed 6.0 mph 12:45 8.4 mph 14.0 mph, 2016 6.0 mph, 2019
Minimum Feels-like 7.6 °C 06:48 11.6 °C 20.3 °C, 2018 5.1 °C, 2013
Maximum Feels-like 19.4 °C 15:06 22.1 °C 27.5 °C, 2018 15.4 °C, 2010
Mean Feels-like 14.8 °C 17.2 °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 9.1 °C (+1.7) 8.7 °C (+0.6) 9.1 °C (+1.7), 2019 3.9 °C (-3.5), 2014
Humidity Range 42% 34% 52%, 2018 10%, 2016
Pressure Range 5 hPa 6 hPa 20 hPa, 2015 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 11.4 [100%]102 hrs (126%) [51%] 11.4 [100%], 2019 0 [0%], 2016
Wet Hours 010 hrs (43%) [2.5%] 5, 2013 0, 2009
Cloud Cover Sunny
Events Maximum possible sunshine
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 16.5 °C
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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