Daily Report for 16th April 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.2 °C (+4.3) 23:55 7.3 °C (+2.6) 9.8 °C (+4.9), 2011 0.8 °C (-4.1), 2012
Maximum Temperature 13.5 °C (+0.9) 01:02 15.4 °C (+3.3) 19.6 °C (+7.0), 2020 8.7 °C (-3.9), 2016
Mean Temperature 11.6 °C (+2.6) 10.8 °C (+3.0) 13.6 °C, 2011 5.9 °C, 2016
Minimum Humidity 74% 00:24 60% 74%, 2009 34%, 2014
Maximum Humidity 95% 19:07 92% 95%, 2009 72%, 2011
Mean Humidity 89% 78% 89%, 2009 54%, 2014
Minimum Pressure 1006 hPa 02:50 1009 hPa 1026 hPa, 2010 998 hPa, 2016
Maximum Pressure 1008 hPa 23:18 1015 hPa 1030 hPa, 2014 1008 hPa, 2009
Mean Pressure 1007 hPa 1012 hPa 1028 hPa, 2014 1000 hPa, 2016
Mean Wind Speed n/a (-4.9) 0.0 mph (-4.9) 8.58, 2013 1.8, 2011
Maximum Wind Speed n/a 0.0 mph 17.8, 2013 7.8, 2011
Maximum Gust n/a 0.0 mph 26.5, 2018 10.2, 2011
Mean Wind Direction n/a
Rainfall 6.5 mm 19.7 mm (75%) 6.5 mm, 2009
Maximum Hourly Rain 2.8 mm 13:11 2.8 mm, 2009
Maximum 10-min Rain 0.9 mm 12:23 0.9 mm, 2009
Maximum Rain Rate 6 mm/h 14:35 6 mm/h, 2009
Minimum Dew Point 8.2 °C 05:34 4.0 °C 8.2 °C, 2009 -4.1 °C, 2012
Maximum Dew Point 11.3 °C 10:18 9.6 °C 11.3 °C, 2009 -0.9 °C, 2012
Mean Dew Point 9.8 °C 6.9 °C 9.8 °C, 2009 -2.8 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 10.9 °C * 7.6 °C 10.9 °C, 2009 0.8 °C, 2012
Day Maximum (09-21) * 13.0 °C * 15.4 °C 19.6 °C, 2020 8.5 °C, 2016
Max 10m Temp Rise 0.4 °C 03:34 0.3 °C 0.7 °C, 2010 0.4 °C, 2009
Max 1hr Temp Rise 1.2 °C 09:48 0.9 °C 3.6 °C, 2014 1.2 °C, 2009
Max 1hr Hum Rise 4% 13:17 2% 17%, 2019 4%, 2009
Max 10m Temp Fall 0.5 °C 03:44 0.2 °C 0.6 °C, 2014 0.4 °C, 2010
Max 1hr Temp Fall 1.4 °C 12:57 0.6 °C 2.3 °C, 2014 0.9 °C, 2017
Max 1hr Hum Fall 3% 10:38 3% 17%, 2012 3%, 2009
Max 10m Wind Speed n/a 0.0 mph 12.5, 2013 4.5, 2011
Minimum Feels-like n/a 0.0 °C 9.9, 2011 -2.2, 2012
Maximum Feels-like n/a 0.0 °C 19.7, 2020 8.8, 2016
Mean Feels-like n/a 0.0 °C 13.6, 2011 4, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.3 °C (-3.5) 8.1 °C (+0.7) 14.9 °C (+7.1), 2020 4.3 °C (-3.5), 2009
Humidity Range 21% 32% 49%, 2013 21%, 2009
Pressure Range 2 hPa 6 hPa 12 hPa, 2016 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]73 hrs (103%) [38%] 12.5 [100%], 2014 0 [0%], 2009
Wet Hours 5
[Mean rain rate: 1.3 mm/h]
25 hrs (102%) [6.5%] 5, 2009 0, 2010
Cloud Cover not available
Events None
Comments 11-15 M. Rain, occasional. other SL. Showers
Extra Comments
Issues None known
Observer Absent? No
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


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Wind rose