Daily Report for 16th May 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.3 °C (-0.8) 02:08 8.2 °C (+0.9) 15.7 °C (+7.6), 2017 2.9 °C (-5.2), 2013
Maximum Temperature 15.9 °C (-0.7) 13:01 17.2 °C (+1.4) 24.4 °C (+7.8), 2017 14.3 °C (-2.2), 2012
Mean Temperature 11.7 °C (-0.7) 12.4 °C (+1.2) 19.2 °C, 2017 9.9 °C, 2012
Minimum Humidity 50% 14:45 47% 60%, 2010 36%, 2013
Maximum Humidity 94% 07:57 85% 94%, 2009 81%, 2011
Mean Humidity 72% 68% 74%, 2010 60%, 2012
Minimum Pressure 1003 hPa 06:14 1015 hPa 1028 hPa, 2014 998 hPa, 2013
Maximum Pressure 1010 hPa 22:13 1020 hPa 1036 hPa, 2014 1001 hPa, 2013
Mean Pressure 1006 hPa 1017 hPa 1032 hPa, 2014 1000 hPa, 2013
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 7.2, 2017 0.8, 2014
Maximum Wind Speed n/a 0.0 mph 16.9, 2017 7.6, 2014
Maximum Gust n/a 0.0 mph 24.2, 2018 8.5, 2014
Mean Wind Direction n/a
Rainfall 0.5 mm 8.2 mm (31%) 8.8 mm, 2010
Maximum Hourly Rain 0.3 mm 07:48 6.3 mm, 2010
Maximum 10-min Rain 0.3 mm 07:48 2.7 mm, 2010
Maximum Rain Rate n/a 60, 2010
Minimum Dew Point 3.4 °C 21:00 3.3 °C 11.9 °C, 2017 -0.6 °C, 2012
Maximum Dew Point 10.8 °C 14:39 9.1 °C 15.9 °C, 2017 4.1 °C, 2012
Mean Dew Point 6.5 °C 6.3 °C 13.5 °C, 2017 1.9 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 7.3 °C 8.5 °C 15.7 °C, 2017 2.9 °C, 2013
Day Maximum (09-21) 15.9 °C 17.2 °C 24.4 °C, 2017 14.3 °C, 2012
Max 10m Temp Rise 0.9 °C 15:47 0.7 °C 1.1 °C, 2013 0.4 °C, 2011
Max 1hr Temp Rise 1.8 °C 10:10 2.2 °C 5.2 °C, 2013 1.5 °C, 2016
Max 1hr Hum Rise 28% 14:39 9% 28%, 2009 6%, 2011
Max 10m Temp Fall 0.6 °C 14:25 0.5 °C 0.7 °C, 2010 0.4 °C, 2017
Max 1hr Temp Fall 1.8 °C 14:25 1.6 °C 3.0 °C, 2014 1.2 °C, 2017
Max 1hr Hum Fall 23% 15:39 13% 23%, 2009 4%, 2010
Max 10m Wind Speed n/a 0.0 mph 12.3, 2017 4.1, 2014
Minimum Feels-like n/a 0.0 °C 18.4, 2017 0.8, 2012
Maximum Feels-like n/a 0.0 °C 27.5, 2017 14.3, 2012
Mean Feels-like n/a 0.0 °C 22.3, 2017 9.2, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.6 °C (+0.2) 9.0 °C (+0.5) 13.9 °C (+5.5), 2014 6.5 °C (-1.9), 2018
Humidity Range 44% 38% 56%, 2013 24%, 2018
Pressure Range 7 hPa 5 hPa 8 hPa, 2014 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [31%]85 hrs (89%) [39%] 10 [71%], 2016 0.4 [3%], 2018
Wet Hours 1
[Mean rain rate: 0.5 mm/h]
10 hrs (48%) [2.6%] 3.5, 2010 0, 2011
Cloud Cover not available
Events None
Comments 0730,14 Heavy Showers, occasional. pm Light Showers
Extra Comments
Issues None known
Observer Absent? No
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


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