Daily Report for 1st May 2011

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.5 °C (+4.4) 06:06 10.5 °C (+4.3) 10.8 °C (+4.7), 2012 1.5 °C (-4.6), 2016
Maximum Temperature 17.7 °C (+3.0) 14:48 17.7 °C (+2.9) 21.0 °C (+6.3), 2009 12.7 °C (-2.0), 2017
Mean Temperature 13.9 °C (+3.7) 13.9 °C (+3.6) 14.1 °C, 2009 8.6 °C, 2015
Minimum Humidity 38% 19:20 38% 72%, 2014 33%, 2016
Maximum Humidity 66% 06:45 66% 97%, 2012 66%, 2011
Mean Humidity 52% 52% 90%, 2014 52%, 2011
Minimum Pressure 1009 hPa 10:06 1009 hPa 1026 hPa, 2016 997 hPa, 2020
Maximum Pressure 1012 hPa 15:29 1012 hPa 1029 hPa, 2016 1006 hPa, 2020
Mean Pressure 1010 hPa 1010 hPa 1027 hPa, 2016 1000 hPa, 2020
Mean Wind Speed 9.2 mph (+4.5) 9.2 mph (+4.5) 9.2 mph, 2011 1.6 mph, 2014
Maximum Wind Speed 18.5 mph 18.5 mph 18.5 mph, 2011 8.5 mph, 2014
Maximum Gust 27.3 mph 18:52 27.3 mph 27.3 mph, 2011 12.3 mph, 2014
Mean Wind Direction ENE
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 0.3 °C 20:18 0.3 °C 8.2 °C, 2012 -2.7 °C, 2013
Maximum Dew Point 6.1 °C 11:23 6.1 °C 13.6 °C, 2012 2.8 °C, 2015
Mean Dew Point 3.9 °C 3.9 °C 10.7 °C, 2012 0.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.5 °C 06:05 10.5 °C 10.8 °C, 2012 1.5 °C, 2016
Day Maximum (09-21) 17.7 °C 14:45 17.7 °C 21.0 °C, 2009 12.7 °C, 2017
Max 10m Temp Rise 0.5 °C 09:12 0.5 °C 1.6 °C, 2009 0.3 °C, 2014
Max 1hr Temp Rise 1.7 °C 08:40 1.7 °C 4.5 °C, 2016 0.7 °C, 2014
Max 1hr Hum Rise 7% 21:34 7% 18%, 2020 4%, 2014
Max 10m Temp Fall 0.7 °C 16:37 0.7 °C 2.4 °C, 2020 0.3 °C, 2014
Max 1hr Temp Fall 2.7 °C 22:02 2.7 °C 3.3 °C, 2020 0.7 °C, 2014
Max 1hr Hum Fall 12% 08:43 12% 22%, 2013 3%, 2014
Max 10m Wind Speed 12.9 mph 16:32 12.9 mph 13.0 mph, 2018 6.2 mph, 2014
Minimum Feels-like 10.5 °C 05:42 10.5 °C 12.2 °C, 2012 -0.9 °C, 2018
Maximum Feels-like 17.7 °C 14:44 17.7 °C 19.2 °C, 2012 13.0 °C, 2017
Mean Feels-like 13.9 °C 13.9 °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 7.2 °C (-1.4) 7.2 °C (-1.4) 15.3 °C (+6.7), 2016 3.2 °C (-5.4), 2014
Humidity Range 28% 28% 56%, 2013 17%, 2017
Pressure Range 3 hPa 3 hPa 16 hPa, 2017 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 11 [82%]11 hrs (189%) [82%] 11 [82%], 2011 0 [0%], 2014
Wet Hours 00 hrs (0%) [0%] 13, 2014 0, 2009
Cloud Cover am: Sunny
pm: Sunny transitioned to Partly Cloudy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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Wind rose