Daily Report for 17th May 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.3 °C (+0.1) 02:19 6.0 °C (-1.3) 12.2 °C (+3.9), 2017 5.7 °C (-2.5), 2010
Maximum Temperature 14.1 °C (-2.6) 12:48 15.5 °C (-0.3) 23.3 °C (+6.6), 2014 11.6 °C (-5.1), 2013
Mean Temperature 11.2 °C (-1.3) 10.9 °C (-0.8) 17.4 °C, 2014 9.7 °C, 2013
Minimum Humidity 71% 12:31 50% 78%, 2017 37%, 2015
Maximum Humidity 91% 19:32 90% 93%, 2010 76%, 2015
Mean Humidity 83% 71% 86%, 2017 54%, 2015
Minimum Pressure 1008 hPa 18:46 1015 hPa 1027 hPa, 2018 1001 hPa, 2013
Maximum Pressure 1015 hPa 00:01 1024 hPa 1029 hPa, 2018 1010 hPa, 2009
Mean Pressure 1010 hPa 1019 hPa 1028 hPa, 2018 1006 hPa, 2013
Mean Wind Speed 3.5 mph (-1.2) 3.4 mph (-1.3) 6.0 mph, 2011 1.2 mph, 2014
Maximum Wind Speed 11.2 mph 13:35 12.3 mph 12.5 mph, 2011 6.4 mph, 2014
Maximum Gust 17.3 mph 07:51 19.4 mph 19.6 mph, 2018 8.7 mph, 2014
Mean Wind Direction NE
Rainfall 0.4 mm 22.4 mm (80%) 35.6 mm, 2017
Maximum Hourly Rain 0.2 mm 6.9 mm, 2017
Maximum 10-min Rain 0.2 mm 2.0 mm, 2017
Maximum Rain Rate n/a 32.8, 2009
Minimum Dew Point 5.5 °C 01:17 2.3 °C 10.1 °C, 2017 0.6 °C, 2012
Maximum Dew Point 10.3 °C 17:24 7.9 °C 16.2 °C, 2017 5.5 °C, 2012
Mean Dew Point 8.4 °C 5.5 °C 13.6 °C, 2017 3.2 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.3 °C 02:20 6.2 °C 16.0 °C, 2017 5.7 °C, 2010
Day Maximum (09-21) 14.1 °C 12:46 15.5 °C 23.3 °C, 2014 11.6 °C, 2013
Max 10m Temp Rise 0.4 °C 08:44 0.8 °C 0.7 °C, 2009 0.4 °C, 2019
Max 1hr Temp Rise 1.2 °C 09:14 2.7 °C 3.1 °C, 2009 1.2 °C, 2019
Max 1hr Hum Rise 10% 16:35 13% 10%, 2009 4%, 2017
Max 10m Temp Fall 0.3 °C 16:02 0.8 °C 0.6 °C, 2015 0.3 °C, 2019
Max 1hr Temp Fall 0.9 °C 01:03 2.1 °C 2.5 °C, 2014 0.9 °C, 2019
Max 1hr Hum Fall 7% 12:22 14% 24%, 2009 4%, 2017
Max 10m Wind Speed 8.5 mph 12:10 8.9 mph 10.1 mph, 2015 4.9 mph, 2014
Minimum Feels-like 6.2 °C 02:00 3.8 °C 13.5 °C, 2017 2.5 °C, 2018
Maximum Feels-like 15.1 °C 12:49 15.8 °C 24.9 °C, 2014 11.6 °C, 2013
Mean Feels-like 11.6 °C 10.6 °C 19.0 °C, 2017 9.4 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.8 °C (-2.6) 9.4 °C (+0.9) 12.3 °C (+3.9), 2010 5.5 °C (-2.9), 2013
Humidity Range 20% 40% 51%, 2010 11%, 2017
Pressure Range 7 hPa 8 hPa 14 hPa, 2012 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.1 [1%]110 hrs (108%) [47%] 13 [91%], 2018 0 [0%], 2017
Wet Hours 2
[Mean rain rate: 0.2 mm/h]
24 hrs (107%) [5.8%] 14, 2017 0, 2010
Cloud Cover Overcast
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 14.0 °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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