Daily Report for 1st May 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.6 °C (-0.5) 04:57 5.6 °C (-0.6) 10.8 °C (+4.7), 2012 1.5 °C (-4.6), 2016
Maximum Temperature 17.8 °C (+3.1) 16:23 17.8 °C (+3.0) 21.0 °C (+6.3), 2009 12.7 °C (-2.0), 2017
Mean Temperature 12.2 °C (+1.3) 12.2 °C (+1.2) 14.1 °C, 2009 8.6 °C, 2015
Minimum Humidity 52% 16:08 52% 72%, 2014 33%, 2016
Maximum Humidity 94% 06:29 94% 97%, 2012 66%, 2011
Mean Humidity 73% 73% 90%, 2014 52%, 2011
Minimum Pressure 1017 hPa 18:12 1017 hPa 1026 hPa, 2016 998 hPa, 2017
Maximum Pressure 1023 hPa 00:05 1023 hPa 1029 hPa, 2016 1010 hPa, 2010
Mean Pressure 1019 hPa 1019 hPa 1027 hPa, 2016 1004 hPa, 2017
Mean Wind Speed 2.0 mph (-2.7) 2.0 mph (-2.7) 9.2 mph, 2011 1.6 mph, 2014
Maximum Wind Speed 10.1 mph 18:26 10.1 mph 18.5 mph, 2011 8.5 mph, 2014
Maximum Gust 17.3 mph 18:26 17.3 mph 27.3 mph, 2011 12.3 mph, 2014
Mean Wind Direction W
Rainfall 0.0 mm 0.0 mm (0%) 31.7 mm, 2010
Maximum Hourly Rain n/a 13.1, 2010
Maximum 10-min Rain n/a 4.1, 2010
Maximum Rain Rate n/a 60, 2010
Minimum Dew Point 4.0 °C 04:34 4.0 °C 8.2 °C, 2012 -2.7 °C, 2013
Maximum Dew Point 9.4 °C 18:36 9.4 °C 13.6 °C, 2012 2.8 °C, 2015
Mean Dew Point 7.3 °C 7.3 °C 10.7 °C, 2012 0.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 5.6 °C 05:10 5.6 °C 10.8 °C, 2012 1.5 °C, 2016
Day Maximum (09-21) 17.8 °C 16:11 17.8 °C 21.0 °C, 2009 12.7 °C, 2017
Max 10m Temp Rise 0.6 °C 11:10 0.6 °C 1.6 °C, 2009 0.3 °C, 2014
Max 1hr Temp Rise 2.2 °C 08:32 2.2 °C 4.5 °C, 2016 0.7 °C, 2014
Max 1hr Hum Rise 13% 19:15 13% 16%, 2010 4%, 2014
Max 10m Temp Fall 0.5 °C 02:02 0.5 °C 0.9 °C, 2009 0.3 °C, 2014
Max 1hr Temp Fall 2.2 °C 02:44 2.2 °C 2.7 °C, 2010 0.7 °C, 2014
Max 1hr Hum Fall 8% 08:13 8% 22%, 2013 3%, 2014
Max 10m Wind Speed 7.4 mph 19:47 7.4 mph 13.0 mph, 2018 6.2 mph, 2014
Minimum Feels-like 4.0 °C 06:13 4.0 °C 12.2 °C, 2012 -0.9 °C, 2018
Maximum Feels-like 18.6 °C 15:48 18.6 °C 19.2 °C, 2012 13.0 °C, 2017
Mean Feels-like 12.4 °C 12.4 °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 12.2 °C (+3.6) 12.2 °C (+3.6) 15.3 °C (+6.7), 2016 3.2 °C (-5.4), 2014
Humidity Range 42% 42% 56%, 2013 17%, 2017
Pressure Range 6 hPa 6 hPa 16 hPa, 2017 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [30%]4 hrs (69%) [30%] 11 [82%], 2011 0 [0%], 2014
Wet Hours 00 hrs (0%) [0%] 13, 2014 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 11.0 °C
Notes
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
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 (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
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