Daily Report for 4th May 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.7 °C (+3.2) 06:18 6.0 °C (-0.4) 11.8 °C (+5.3), 2015 2.8 °C (-3.7), 2010
Maximum Temperature 20.2 °C (+5.1) 15:46 16.6 °C (+1.6) 20.2 °C (+5.1), 2018 8.9 °C (-6.2), 2012
Mean Temperature 15.3 °C (+4.2) 11.5 °C (+0.6) 15.3 °C, 2018 7.1 °C, 2010
Minimum Humidity 45% 14:05 47% 80%, 2012 33%, 2016
Maximum Humidity 85% 06:41 89% 96%, 2012 73%, 2013
Mean Humidity 62% 68% 89%, 2012 50%, 2016
Minimum Pressure 1022 hPa 00:06 1012 hPa 1025 hPa, 2010 992 hPa, 2015
Maximum Pressure 1027 hPa 23:56 1019 hPa 1028 hPa, 2009 1005 hPa, 2015
Mean Pressure 1024 hPa 1015 hPa 1026 hPa, 2010 1002 hPa, 2015
Mean Wind Speed 2.5 mph (-2.2) 5.2 mph (+0.5) 7.1 mph, 2013 2.5 mph, 2018
Maximum Wind Speed 8.9 mph 10:53 13.8 mph 16.8 mph, 2013 8.7 mph, 2012
Maximum Gust 11.5 mph 10:53 20.4 mph 24.4 mph, 2015 10.9 mph, 2014
Mean Wind Direction W
Rainfall 0.0 mm 4.2 mm (64%) 4.5 mm, 2015
Maximum Hourly Rain n/a 2.6, 2015
Maximum 10-min Rain n/a 0.8, 2015
Maximum Rain Rate n/a 5.4, 2015
Minimum Dew Point 5.5 °C 01:20 3.0 °C 5.5 °C, 2018 -3.9 °C, 2016
Maximum Dew Point 11.2 °C 18:40 8.4 °C 11.2 °C, 2018 3.4 °C, 2010
Mean Dew Point 7.9 °C 5.3 °C 7.9 °C, 2018 1.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 9.7 °C 06:19 6.6 °C 11.8 °C, 2015 2.8 °C, 2010
Day Maximum (09-21) 20.2 °C 15:46 16.6 °C 20.2 °C, 2018 8.9 °C, 2012
Max 10m Temp Rise 0.6 °C 13:24 0.7 °C 1.0 °C, 2016 0.4 °C, 2010
Max 1hr Temp Rise 2.4 °C 08:51 2.6 °C 4.9 °C, 2016 1.0 °C, 2017
Max 1hr Hum Rise 7% 14:48 10% 14%, 2015 3%, 2012
Max 10m Temp Fall 0.7 °C 12:38 1.0 °C 0.7 °C, 2018 0.2 °C, 2012
Max 1hr Temp Fall 1.8 °C 19:47 1.9 °C 1.8 °C, 2016 0.5 °C, 2012
Max 1hr Hum Fall 12% 07:45 15% 26%, 2013 8%, 2010
Max 10m Wind Speed 6.1 mph 21:27 10.5 mph 13.9 mph, 2013 6.1 mph, 2012
Minimum Feels-like 9.7 °C 06:02 3.9 °C 12.0 °C, 2015 0.2 °C, 2010
Maximum Feels-like 21.6 °C 18:40 17.2 °C 21.6 °C, 2018 8.9 °C, 2012
Mean Feels-like 15.8 °C 10.7 °C 15.8 °C, 2018 5.7 °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 10.5 °C (+1.9) 10.6 °C (+2.0) 14.4 °C (+5.8), 2016 2.2 °C (-6.4), 2012
Humidity Range 40% 42% 51%, 2015 16%, 2012
Pressure Range 5 hPa 7 hPa 13 hPa, 2015 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8 [59%]27 hrs (115%) [50%] 13.5 [100%], 2011 0 [0%], 2012
Wet Hours 06 hrs (116%) [6.3%] 4, 2015 0, 2010
Cloud Cover am: Mostly Cloudy transitioned to Sunny
pm: Partly Cloudy 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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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