Daily Report for 19th July 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 18.2 °C (+4.5) 05:30 15.9 °C (+2.9) 19.5 °C (+5.8), 2014 11.9 °C (-1.8), 2011
Maximum Temperature 22.7 °C (+0.1) 11:18 25.0 °C (+2.7) 32.6 °C (+10.0), 2016 19.7 °C (-2.9), 2009
Mean Temperature 20.0 °C (+2.3) 20.3 °C (+2.8) 25.1 °C, 2016 15.3 °C, 2011
Minimum Humidity 68% 20:09 45% 68%, 2017 24%, 2015
Maximum Humidity 85% 07:33 78% 94%, 2011 66%, 2010
Mean Humidity 78% 60% 84%, 2011 47%, 2010
Minimum Pressure 1005 hPa 08:37 1014 hPa 1023 hPa, 2013 1000 hPa, 2011
Maximum Pressure 1011 hPa 02:00 1020 hPa 1027 hPa, 2013 1008 hPa, 2011
Mean Pressure 1008 hPa 1017 hPa 1025 hPa, 2013 1004 hPa, 2011
Mean Wind Speed 5.1 mph (+0.8) 3.5 mph (-0.8) 5.7 mph, 2015 3.1 mph, 2014
Maximum Wind Speed 13.8 mph 15:48 11.0 mph 17.0 mph, 2015 8.5 mph, 2011
Maximum Gust 22.0 mph 15:48 16.8 mph 27.0 mph, 2015 12.5 mph, 2011
Mean Wind Direction S
Rainfall 4.8 mm 45.4 mm (176%) 4.8 mm, 2017
Maximum Hourly Rain 4.5 mm 03:16 4.5 mm, 2017
Maximum 10-min Rain 1.3 mm 03:01 1.5 mm, 2014
Maximum Rain Rate 18 mm/h 03:01 24 mm/h, 2014
Minimum Dew Point 13.8 °C 23:30 9.3 °C 13.8 °C, 2014 -0.3 °C, 2015
Maximum Dew Point 18.5 °C 11:06 14.6 °C 19.2 °C, 2014 11.9 °C, 2010
Mean Dew Point 15.9 °C 12.0 °C 16.3 °C, 2014 7.1 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 18.2 °C 05:30 15.9 °C 19.5 °C, 2014 11.9 °C, 2011
Day Maximum (09-21) 22.7 °C 11:18 25.0 °C 32.6 °C, 2016 19.7 °C, 2009
Max 10m Temp Rise 0.5 °C 09:07 0.6 °C 0.9 °C, 2012 0.5 °C, 2015
Max 1hr Temp Rise 1.8 °C 09:21 2.2 °C 3.2 °C, 2013 1.8 °C, 2017
Max 1hr Hum Rise 5% 03:24 8% 12%, 2009 4%, 2010
Max 10m Temp Fall 0.5 °C 13:13 0.5 °C 0.8 °C, 2012 0.4 °C, 2013
Max 1hr Temp Fall 1.4 °C 13:21 1.9 °C 2.8 °C, 2016 1.4 °C, 2017
Max 1hr Hum Fall 6% 19:42 10% 15%, 2012 6%, 2017
Max 10m Wind Speed 11.5 mph 17:21 8.1 mph 12.5 mph, 2015 5.8 mph, 2009
Minimum Feels-like 21.9 °C 00:00 17.6 °C 23.1 °C, 2014 13.6 °C, 2011
Maximum Feels-like 29.1 °C 11:07 27.7 °C 36.1 °C, 2016 21.9 °C, 2012
Mean Feels-like 24.6 °C 22.7 °C 28.7 °C, 2016 17.9 °C, 2011
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.5 °C (-4.4) 9.0 °C (-0.2) 16.0 °C (+7.1), 2016 4.5 °C (-4.4), 2017
Humidity Range 17% 33% 54%, 2015 17%, 2017
Pressure Range 6 hPa 6 hPa 9 hPa, 2016 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [7%]123 hrs (107%) [44%] 14.6 [100%], 2016 1 [7%], 2017
Wet Hours 1.5
[Mean rain rate: 3.2 mm/h]
16 hrs (77%) [3.5%] 3, 2014 0, 2010
Cloud Cover am: Overcast
pm: Overcast transitioned to Mostly Cloudy
Events None
Comments o.night Rain
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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Webcam Summary of Cloud Conditions

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