Daily Report for 18th April 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.4 °C (+1.5) 03:38 6.0 °C (+1.3) 12.3 °C (+7.4), 2018 3.5 °C (-1.5), 2010
Maximum Temperature 14.1 °C (+1.2) 16:37 17.4 °C (+5.2) 24.9 °C (+12.0), 2018 11.4 °C (-1.5), 2012
Mean Temperature 9.6 °C (+1.3) 11.8 °C (+3.2) 18.3 °C, 2018 8.2 °C, 2012
Minimum Humidity 70% 15:18 45% 70%, 2020 28%, 2018
Maximum Humidity 90% 07:12 85% 97%, 2009 70%, 2013
Mean Humidity 81% 66% 81%, 2012 54%, 2017
Minimum Pressure 1016 hPa 04:32 1019 hPa 1026 hPa, 2015 977 hPa, 2012
Maximum Pressure 1021 hPa 23:55 1025 hPa 1032 hPa, 2017 992 hPa, 2012
Mean Pressure 1019 hPa 1022 hPa 1029 hPa, 2017 984 hPa, 2012
Mean Wind Speed 3.7 mph (-1.2) 4.4 mph (-0.5) 10.6 mph, 2013 2.2 mph, 2010
Maximum Wind Speed 11.2 mph 01:27 12.9 mph 20.8 mph, 2013 7.1 mph, 2010
Maximum Gust 17.3 mph 00:17 19.0 mph 30.1 mph, 2013 10.0 mph, 2010
Mean Wind Direction ENE
Rainfall 1.5 mm 2.5 mm (9%) 3.4 mm, 2012
Maximum Hourly Rain 1.3 mm 02:39 1.3 mm, 2020
Maximum 10-min Rain 0.5 mm 02:16 0.6 mm, 2012
Maximum Rain Rate 2.6 mm/h 02:05 5.0 mm/h, 2012
Minimum Dew Point 4.0 °C 00:24 2.4 °C 5.0 °C, 2018 -2.7 °C, 2017
Maximum Dew Point 9.1 °C 16:10 8.0 °C 13.4 °C, 2018 1.3 °C, 2017
Mean Dew Point 6.4 °C 5.2 °C 10.4 °C, 2018 -0.8 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.4 °C 03:35 6.5 °C 12.3 °C, 2018 3.5 °C, 2010
Day Maximum (09-21) 14.1 °C 16:37 17.4 °C 24.9 °C, 2018 11.4 °C, 2012
Max 10m Temp Rise 0.4 °C 11:14 0.7 °C 1.2 °C, 2009 0.4 °C, 2020
Max 1hr Temp Rise 1.5 °C 11:19 3.0 °C 3.4 °C, 2011 1.5 °C, 2020
Max 1hr Hum Rise 7% 02:52 10% 24%, 2013 4%, 2016
Max 10m Temp Fall 0.4 °C 21:35 0.6 °C 2.5 °C, 2013 0.4 °C, 2015
Max 1hr Temp Fall 1.5 °C 21:48 2.1 °C 4.3 °C, 2013 1.4 °C, 2012
Max 1hr Hum Fall 6% 11:49 12% 14%, 2014 6%, 2020
Max 10m Wind Speed 8.5 mph 01:43 9.5 mph 14.9 mph, 2013 8.0 mph, 2016
Minimum Feels-like 2.7 °C 03:30 4.3 °C 13.4 °C, 2018 0.6 °C, 2015
Maximum Feels-like 15.0 °C 16:31 17.9 °C 26.6 °C, 2018 11.7 °C, 2012
Mean Feels-like 8.8 °C 11.4 °C 19.8 °C, 2018 6.3 °C, 2012
Air-frost Hrs 0 hrs 0.2 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.7 °C (-0.3) 11.4 °C (+3.9) 16.0 °C (+8.0), 2010 5.4 °C (-2.6), 2012
Humidity Range 20% 40% 56%, 2018 20%, 2020
Pressure Range 5 hPa 6 hPa 15 hPa, 2012 3 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.5 [4%]135 hrs (168%) [61%] 12.7 [100%], 2018 0.5 [4%], 2020
Wet Hours 2
[Mean rain rate: 0.8 mm/h]
3.5 hrs (13%) [0.8%] 4, 2012 0, 2009
Cloud Cover am: Overcast
pm: Mostly Cloudy
Events None
Comments o.night Rain
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 5.0 °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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