Daily Report for 1st May 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.8 °C (+2.7) 23:59 8.8 °C (+2.6) 10.8 °C (+4.7), 2012 1.5 °C (-4.6), 2016
Maximum Temperature 12.7 °C (-2.0) 16:46 12.7 °C (-2.1) 21.0 °C (+6.3), 2009 12.7 °C (-2.0), 2017
Mean Temperature 10.8 °C (+0.4) 10.8 °C (+0.2) 14.1 °C, 2009 8.6 °C, 2015
Minimum Humidity 64% 13:19 64% 72%, 2014 33%, 2016
Maximum Humidity 81% 15:44 81% 97%, 2012 66%, 2011
Mean Humidity 74% 74% 90%, 2014 52%, 2011
Minimum Pressure 998 hPa 01:11 998 hPa 1026 hPa, 2016 998 hPa, 2017
Maximum Pressure 1014 hPa 23:25 1014 hPa 1029 hPa, 2016 1010 hPa, 2010
Mean Pressure 1004 hPa 1004 hPa 1027 hPa, 2016 1004 hPa, 2017
Mean Wind Speed 3.3 mph (-1.4) 3.3 mph (-1.4) 9.2 mph, 2011 1.6 mph, 2014
Maximum Wind Speed 10.3 mph 14:09 10.3 mph 18.5 mph, 2011 8.5 mph, 2014
Maximum Gust 17.8 mph 12:45 17.8 mph 27.3 mph, 2011 12.3 mph, 2014
Mean Wind Direction SE
Rainfall 4.9 mm 4.9 mm (298%) 31.7 mm, 2010
Maximum Hourly Rain 2.1 mm 01:18 13.1 mm, 2010
Maximum 10-min Rain 1.0 mm 00:51 4.1 mm, 2010
Maximum Rain Rate 10 mm/h 01:02 60 mm/h, 2010
Minimum Dew Point 4.5 °C 23:09 4.5 °C 8.2 °C, 2012 -2.7 °C, 2013
Maximum Dew Point 8.8 °C 15:44 8.8 °C 13.6 °C, 2012 2.8 °C, 2015
Mean Dew Point 6.2 °C 6.2 °C 10.7 °C, 2012 0.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 9.5 °C * 06:54 9.5 °C 10.8 °C, 2012 1.5 °C, 2016
Day Maximum (09-21) 12.7 °C 16:46 12.7 °C 21.0 °C, 2009 12.7 °C, 2017
Max 10m Temp Rise 0.6 °C 09:54 0.6 °C 1.6 °C, 2009 0.3 °C, 2014
Max 1hr Temp Rise 1.3 °C 16:20 1.3 °C 4.5 °C, 2016 0.7 °C, 2014
Max 1hr Hum Rise 12% 14:36 12% 16%, 2010 4%, 2014
Max 10m Temp Fall 0.5 °C 15:13 0.5 °C 0.9 °C, 2009 0.3 °C, 2014
Max 1hr Temp Fall 1.0 °C 01:05 1.0 °C 2.7 °C, 2010 0.7 °C, 2014
Max 1hr Hum Fall 9% 16:41 9% 22%, 2013 3%, 2014
Max 10m Wind Speed 7.3 mph 14:16 7.3 mph 12.9 mph, 2011 6.2 mph, 2014
Minimum Feels-like 6.7 °C 23:24 6.7 °C 12.2 °C, 2012 0.0 °C, 2013
Maximum Feels-like 13.0 °C 16:42 13.0 °C 19.2 °C, 2012 13.0 °C, 2017
Mean Feels-like 10.7 °C 10.7 °C 14.8 °C, 2012 7.3 °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 3.9 °C (-4.7) 3.9 °C (-4.7) 15.3 °C (+6.7), 2016 3.2 °C (-5.4), 2014
Humidity Range 17% 17% 56%, 2013 17%, 2017
Pressure Range 16 hPa 16 hPa 16 hPa, 2017 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.1 [16%]2.1 hrs (36%) [16%] 11 [82%], 2011 0 [0%], 2014
Wet Hours 4
[Mean rain rate: 1.2 mm/h]
4 hrs (310%) [17%] 13, 2014 0, 2009
Cloud Cover Partly Cloudy with periods of Mostly Cloudy
Events None
Comments Showers
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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