Daily Report for 23rd May 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.5 °C (+3.4) 05:33 9.3 °C (+1.6) 12.8 °C (+3.7), 2012 5.7 °C (-3.4), 2013
Maximum Temperature 21.7 °C (+4.3) 18:33 17.5 °C (+1.3) 29.1 °C (+11.7), 2010 11.0 °C (-6.4), 2013
Mean Temperature 17.8 °C (+3.9) 13.2 °C (+1.4) 19.4 °C, 2010 8.1 °C, 2013
Minimum Humidity 56% 12:54 53% 64%, 2018 33%, 2009
Maximum Humidity 75% 05:35 82% 92%, 2010 71%, 2014
Mean Humidity 66% 69% 79%, 2018 58%, 2009
Minimum Pressure 1014 hPa 00:00 1012 hPa 1024 hPa, 2015 1002 hPa, 2014
Maximum Pressure 1025 hPa 22:59 1020 hPa 1028 hPa, 2010 1008 hPa, 2014
Mean Pressure 1022 hPa 1016 hPa 1024 hPa, 2015 1005 hPa, 2014
Mean Wind Speed 3.4 mph (-1.3) 4.4 mph (-0.3) 9.3 mph, 2011 2.4 mph, 2010
Maximum Wind Speed 9.6 mph 04:46 11.4 mph 22.5 mph, 2011 6.4 mph, 2012
Maximum Gust 13.6 mph 01:05 17.6 mph 32.0 mph, 2011 8.7 mph, 2012
Mean Wind Direction WNW
Rainfall 0.0 mm 65.8 mm (174%) 2.0 mm, 2015
Maximum Hourly Rain n/a 2, 2015
Maximum 10-min Rain n/a 0.8, 2015
Maximum Rain Rate n/a 5.4, 2015
Minimum Dew Point 8.1 °C 05:07 5.1 °C 10.3 °C, 2012 -2.2 °C, 2013
Maximum Dew Point 14.3 °C 17:48 9.7 °C 16.8 °C, 2012 2.8 °C, 2013
Mean Dew Point 11.3 °C 7.4 °C 13.7 °C, 2012 0.9 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.5 °C 05:33 9.6 °C 13.0 °C, 2015 5.7 °C, 2013
Day Maximum (09-21) 21.7 °C 18:33 17.5 °C 29.1 °C, 2010 11.0 °C, 2013
Max 10m Temp Rise 0.6 °C 07:57 0.6 °C 1.0 °C, 2013 0.5 °C, 2010
Max 1hr Temp Rise 2.4 °C 11:01 2.1 °C 2.9 °C, 2012 1.7 °C, 2014
Max 1hr Hum Rise 8% 21:49 9% 21%, 2013 6%, 2018
Max 10m Temp Fall 0.5 °C 15:21 0.5 °C 1.2 °C, 2009 0.4 °C, 2012
Max 1hr Temp Fall 1.4 °C 21:08 1.7 °C 2.8 °C, 2015 1.4 °C, 2017
Max 1hr Hum Fall 6% 10:39 10% 22%, 2009 6%, 2017
Max 10m Wind Speed 7.4 mph 07:39 8.7 mph 15.7 mph, 2011 5.0 mph, 2012
Minimum Feels-like 13.0 °C 05:22 8.1 °C 14.2 °C, 2012 2.2 °C, 2013
Maximum Feels-like 25.1 °C 18:20 18.4 °C 31.2 °C, 2010 11.0 °C, 2013
Mean Feels-like 19.7 °C 13.5 °C 22.2 °C, 2012 6.5 °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 9.2 °C (+0.8) 8.2 °C (-0.3) 18.5 °C (+10.2), 2010 4.9 °C (-3.5), 2014
Humidity Range 19% 29% 59%, 2010 19%, 2017
Pressure Range 11 hPa 8 hPa 11 hPa, 2016 1 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [41%]99 hrs (71%) [31%] 14.6 [101%], 2010 3 [21%], 2015
Wet Hours 039 hrs (131%) [7.1%] 1, 2014 0, 2009
Cloud Cover am: Mostly Sunny transitioned to Mostly Cloudy
pm: Mostly 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 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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Webcam Summary of Cloud Conditions

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