Daily Report for 17th April 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.6 °C (+1.7) 23:58 6.8 °C (+2.1) 9.8 °C (+4.9), 2013 1.4 °C (-3.5), 2016
Maximum Temperature 11.9 °C (-0.8) 16:14 16.3 °C (+4.2) 19.0 °C (+6.3), 2011 10.8 °C (-1.9), 2009
Mean Temperature 9.7 °C (+0.4) 11.6 °C (+3.1) 13.7 °C, 2013 6.7 °C, 2016
Minimum Humidity 51% 20:06 48% 94%, 2009 34%, 2010
Maximum Humidity 79% 07:11 78% 97%, 2009 66%, 2014
Mean Humidity 64% 61% 96%, 2009 54%, 2014
Minimum Pressure 1018 hPa 02:08 1018 hPa 1024 hPa, 2011 993 hPa, 2012
Maximum Pressure 1025 hPa 22:13 1024 hPa 1028 hPa, 2010 1014 hPa, 2009
Mean Pressure 1021 hPa 1021 hPa 1025 hPa, 2011 1006 hPa, 2012
Mean Wind Speed 3.2 mph (-1.7) 3.9 mph (-1.0) 8.6 mph, 2013 2.0 mph, 2010
Maximum Wind Speed 8.8 mph 11:53 11.4 mph 22.3 mph, 2012 6.8 mph, 2010
Maximum Gust 16.8 mph 05:09 16.5 mph 33.5 mph, 2012 9.5 mph, 2010
Mean Wind Direction N
Rainfall 0.4 mm 0.4 mm (1%) 7.7 mm, 2009
Maximum Hourly Rain n/a 2.7, 2009
Maximum 10-min Rain n/a 1.4, 2009
Maximum Rain Rate n/a 32.8, 2009
Minimum Dew Point -0.5 °C 23:55 1.0 °C 7.0 °C, 2009 -3.9 °C, 2016
Maximum Dew Point 7.0 °C 00:03 7.1 °C 11.2 °C, 2013 2.8 °C, 2016
Mean Dew Point 3.1 °C 4.1 °C 8.4 °C, 2009 -1.0 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.3 °C * 08:03 6.9 °C 9.8 °C, 2013 1.4 °C, 2016
Day Maximum (09-21) 11.9 °C 16:14 16.3 °C 19.0 °C, 2011 10.8 °C, 2009
Max 10m Temp Rise 0.4 °C 11:52 0.6 °C 1.1 °C, 2012 0.3 °C, 2009
Max 1hr Temp Rise 1.2 °C 09:36 2.3 °C 4.9 °C, 2010 1.0 °C, 2009
Max 1hr Hum Rise 5% 22:47 6% 25%, 2012 1%, 2009
Max 10m Temp Fall 0.6 °C 23:41 0.5 °C 1.7 °C, 2012 0.3 °C, 2009
Max 1hr Temp Fall 2.1 °C 23:57 1.6 °C 4.5 °C, 2012 0.8 °C, 2009
Max 1hr Hum Fall 10% 09:45 9% 31%, 2012 1%, 2009
Max 10m Wind Speed 7.4 mph 12:02 8.7 mph 15.4 mph, 2012 5.3 mph, 2016
Minimum Feels-like 4.3 °C 08:23 5.0 °C 8.3 °C, 2013 -2.0 °C, 2016
Maximum Feels-like 11.9 °C 15:59 16.4 °C 19.1 °C, 2011 11.8 °C, 2016
Mean Feels-like 8.9 °C 11.3 °C 14.4 °C, 2013 5.9 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.3 °C (-2.5) 9.5 °C (+2.1) 15.1 °C (+7.3), 2010 3.1 °C (-4.7), 2009
Humidity Range 28% 30% 60%, 2010 3%, 2009
Pressure Range 7 hPa 6 hPa 25 hPa, 2012 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.4 [3%]112 hrs (148%) [54%] 12.5 [99%], 2010 0 [0%], 2009
Wet Hours 1
[Mean rain rate: 0.4 mm/h]
1 hrs (4%) [0.2%] 8, 2009 0, 2010
Cloud Cover Mostly Cloudy
Events None
Comments o.night Rain
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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