Daily Report for 4th May 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.2 °C (-2.3) 06:28 6.2 °C (-0.3) 11.8 °C (+5.3), 2015 2.8 °C (-3.7), 2010
Maximum Temperature 10.7 °C (-4.4) 15:40 14.6 °C (-0.4) 20.2 °C (+5.1), 2018 8.9 °C (-6.2), 2012
Mean Temperature 7.0 °C (-3.3) 10.1 °C (-0.3) 15.3 °C, 2018 7.0 °C, 2019
Minimum Humidity 52% 13:10 55% 80%, 2012 33%, 2016
Maximum Humidity 85% 00:14 91% 96%, 2012 73%, 2013
Mean Humidity 74% 77% 89%, 2012 50%, 2016
Minimum Pressure 1015 hPa 00:01 1015 hPa 1025 hPa, 2010 992 hPa, 2015
Maximum Pressure 1025 hPa 23:47 1020 hPa 1028 hPa, 2009 1005 hPa, 2015
Mean Pressure 1020 hPa 1017 hPa 1026 hPa, 2010 1002 hPa, 2015
Mean Wind Speed 5.4 mph (+0.7) 3.2 mph (-1.5) 7.1 mph, 2013 2.5 mph, 2018
Maximum Wind Speed 18.2 mph 13:16 12.8 mph 18.2 mph, 2019 8.7 mph, 2012
Maximum Gust 32.3 mph 18:24 21.3 mph 32.3 mph, 2019 10.9 mph, 2014
Mean Wind Direction N
Rainfall 1.4 mm 8.4 mm (128%) 4.5 mm, 2015
Maximum Hourly Rain 1.0 mm 18:36 2.6 mm, 2015
Maximum 10-min Rain 0.8 mm 18:26 0.8 mm, 2015
Maximum Rain Rate 12 mm/h 18:24 12 mm/h, 2019
Minimum Dew Point 0.2 °C 11:27 3.5 °C 5.5 °C, 2018 -3.9 °C, 2016
Maximum Dew Point 4.6 °C 16:07 8.0 °C 11.2 °C, 2018 3.4 °C, 2010
Mean Dew Point 2.6 °C 6.0 °C 7.9 °C, 2018 1.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.2 °C 06:28 6.6 °C 11.8 °C, 2015 2.8 °C, 2010
Day Maximum (09-21) 10.7 °C 15:41 14.6 °C 20.2 °C, 2018 8.9 °C, 2012
Max 10m Temp Rise 0.9 °C 10:56 0.7 °C 1.0 °C, 2016 0.4 °C, 2010
Max 1hr Temp Rise 2.7 °C 14:32 2.1 °C 4.9 °C, 2016 1.0 °C, 2017
Max 1hr Hum Rise 24% 13:31 19% 24%, 2019 3%, 2012
Max 10m Temp Fall 2.4 °C 13:26 1.3 °C 2.4 °C, 2019 0.2 °C, 2012
Max 1hr Temp Fall 3.7 °C 17:41 3.0 °C 3.7 °C, 2019 0.5 °C, 2012
Max 1hr Hum Fall 19% 14:34 11% 26%, 2013 8%, 2010
Max 10m Wind Speed 12.0 mph 17:20 8.9 mph 13.9 mph, 2013 6.1 mph, 2012
Minimum Feels-like -0.3 °C 06:24 3.1 °C 12.0 °C, 2015 -0.3 °C, 2019
Maximum Feels-like 10.7 °C 15:40 14.9 °C 21.6 °C, 2018 8.9 °C, 2012
Mean Feels-like 4.6 °C 9.5 °C 15.8 °C, 2018 4.6 °C, 2019
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.5 °C (-2.1) 8.4 °C (-0.2) 14.4 °C (+5.8), 2016 2.2 °C (-6.4), 2012
Humidity Range 33% 36% 51%, 2015 16%, 2012
Pressure Range 10 hPa 6 hPa 13 hPa, 2015 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [74%]16 hrs (68%) [30%] 13.5 [100%], 2011 0 [0%], 2012
Wet Hours 2
[Mean rain rate: 0.7 mm/h]
7 hrs (136%) [7.3%] 4, 2015 0, 2010
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 12.0 °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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