Daily Report for 30th July 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.8 °C (+0.9) 06:53 15.2 °C (+1.9) 15.5 °C (+1.6), 2013 9.1 °C (-4.8), 2011
Maximum Temperature 20.2 °C (-2.5) 15:00 23.4 °C (+1.0) 25.6 °C (+2.9), 2014 18.7 °C (-4.0), 2015
Mean Temperature 17.6 °C (-0.8) 19.1 °C (+1.4) 20.0 °C, 2014 15.2 °C, 2015
Minimum Humidity 51% 18:18 48% 72%, 2013 34%, 2012
Maximum Humidity 86% 03:06 80% 95%, 2009 73%, 2014
Mean Humidity 70% 65% 85%, 2013 55%, 2014
Minimum Pressure 1004 hPa 04:35 1011 hPa 1018 hPa, 2011 1004 hPa, 2017
Maximum Pressure 1009 hPa 23:46 1017 hPa 1025 hPa, 2011 1009 hPa, 2017
Mean Pressure 1007 hPa 1015 hPa 1022 hPa, 2011 1007 hPa, 2017
Mean Wind Speed 5.7 mph (+1.4) 4.0 mph (-0.3) 5.7 mph, 2017 2.7 mph, 2011
Maximum Wind Speed 14.0 mph 17:28 11.9 mph 15.8 mph, 2016 7.4 mph, 2011
Maximum Gust 21.0 mph 15:33 18.1 mph 22.6 mph, 2016 10.7 mph, 2011
Mean Wind Direction WSW
Rainfall 17.8 mm 89.0 mm (219%) 17.8 mm, 2017
Maximum Hourly Rain 16.0 mm 02:51 16.0 mm, 2017
Maximum 10-min Rain 5.1 mm 02:36 5.1 mm, 2017
Maximum Rain Rate 50 mm/h 02:32 50 mm/h, 2017
Minimum Dew Point 9.0 °C 19:32 9.4 °C 13.1 °C, 2013 2.5 °C, 2012
Maximum Dew Point 15.0 °C 01:52 14.5 °C 18.6 °C, 2013 8.9 °C, 2015
Mean Dew Point 11.8 °C 11.9 °C 14.9 °C, 2013 6.2 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.8 °C 06:53 15.3 °C 16.0 °C, 2016 9.1 °C, 2011
Day Maximum (09-21) 20.2 °C 15:00 23.4 °C 25.6 °C, 2014 18.7 °C, 2015
Max 10m Temp Rise 0.5 °C 12:55 0.6 °C 1.0 °C, 2011 0.4 °C, 2016
Max 1hr Temp Rise 1.7 °C 09:24 2.1 °C 4.5 °C, 2011 1.4 °C, 2013
Max 1hr Hum Rise 6% 23:51 8% 10%, 2011 5%, 2013
Max 10m Temp Fall 0.4 °C 19:16 0.5 °C 0.6 °C, 2014 0.3 °C, 2010
Max 1hr Temp Fall 1.4 °C 19:54 1.9 °C 2.5 °C, 2014 1.2 °C, 2010
Max 1hr Hum Fall 12% 10:55 10% 14%, 2014 8%, 2013
Max 10m Wind Speed 11.4 mph 17:25 8.8 mph 11.4 mph, 2017 4.6 mph, 2009
Minimum Feels-like 17.1 °C 06:53 16.8 °C 18.4 °C, 2013 8.2 °C, 2011
Maximum Feels-like 22.2 °C 14:50 26.1 °C 27.4 °C, 2014 18.8 °C, 2015
Mean Feels-like 19.9 °C 21.4 °C 21.5 °C, 2013 15.4 °C, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.4 °C (-3.4) 8.2 °C (-0.9) 12.7 °C (+3.9), 2011 5.3 °C (-3.5), 2013
Humidity Range 35% 32% 50%, 2012 23%, 2013
Pressure Range 5 hPa 6 hPa 12 hPa, 2009 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5.5 [39%]157 hrs (87%) [36%] 11 [78%], 2011 0.4 [3%], 2016
Wet Hours 2
[Mean rain rate: 9 mm/h]
45 hrs (135%) [6.2%] 6, 2013 0, 2011
Cloud Cover Partly Cloudy with periods of Mostly Cloudy
Events None
Comments o.night Rain/Showers
Extra Comments
Issues Rn data from N16
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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