Daily Report for 25th April 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.3 °C (+1.9) 23:58 7.0 °C (+2.1) 11.3 °C (+5.9), 2015 1.4 °C (-4.0), 2017
Maximum Temperature 16.1 °C (+2.4) 14:39 16.3 °C (+3.7) 22.4 °C (+8.7), 2013 11.1 °C (-2.6), 2017
Mean Temperature 11.4 °C (+2.1) 11.1 °C (+2.9) 16.4 °C, 2013 6.0 °C, 2017
Minimum Humidity 38% 17:01 55% 82%, 2014 33%, 2011
Maximum Humidity 81% 09:48 91% 97%, 2014 67%, 2017
Mean Humidity 59% 75% 93%, 2014 48%, 2017
Minimum Pressure 1003 hPa 06:18 1012 hPa 1022 hPa, 2011 982 hPa, 2012
Maximum Pressure 1011 hPa 23:32 1018 hPa 1025 hPa, 2011 998 hPa, 2012
Mean Pressure 1007 hPa 1015 hPa 1024 hPa, 2011 990 hPa, 2012
Mean Wind Speed n/a (-4.9) 0.0 mph (-4.9) 8.4, 2018 3.8, 2014
Maximum Wind Speed n/a 0.0 mph 25.6, 2012 10.2, 2014
Maximum Gust n/a 0.0 mph 45.3, 2012 15.2, 2014
Mean Wind Direction n/a
Rainfall 0.5 mm 27.9 mm (68%) 14.2 mm, 2012
Maximum Hourly Rain 0.5 mm 08:32 4.3 mm, 2012
Maximum 10-min Rain 0.5 mm 08:32 2.0 mm, 2012
Maximum Rain Rate 4.1 mm/h 08:32 40 mm/h, 2012
Minimum Dew Point 0.2 °C 23:09 3.5 °C 6.9 °C, 2014 -6.7 °C, 2017
Maximum Dew Point 7.7 °C 10:04 9.2 °C 12.5 °C, 2014 -1.2 °C, 2017
Mean Dew Point 3.4 °C 6.3 °C 9.5 °C, 2013 -4.4 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 8.5 °C * 7.2 °C 11.3 °C, 2015 1.4 °C, 2017
Day Maximum (09-21) 16.1 °C 16.2 °C 22.4 °C, 2013 11.1 °C, 2017
Max 10m Temp Rise 0.8 °C 13:19 0.5 °C 0.9 °C, 2019 0.2 °C, 2014
Max 1hr Temp Rise 2.7 °C 13:26 1.6 °C 2.7 °C, 2009 0.8 °C, 2014
Max 1hr Hum Rise 9% 09:02 4% 17%, 2017 4%, 2014
Max 10m Temp Fall 0.5 °C 14:17 0.4 °C 1.1 °C, 2016 0.4 °C, 2015
Max 1hr Temp Fall 1.5 °C 18:50 1.1 °C 3.8 °C, 2013 1.5 °C, 2009
Max 1hr Hum Fall 16% 13:47 6% 19%, 2019 2%, 2014
Max 10m Wind Speed n/a 0.0 mph 13.9, 2018 7.5, 2020
Minimum Feels-like n/a 0.0 °C 12.5, 2015 -2.9, 2017
Maximum Feels-like n/a 0.0 °C 23.5, 2013 11.1, 2017
Mean Feels-like n/a 0.0 °C 17.5, 2013 3.6, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.8 °C (+0.5) 9.3 °C (+1.6) 11.6 °C (+3.3), 2013 4.5 °C (-3.8), 2014
Humidity Range 43% 36% 55%, 2013 15%, 2014
Pressure Range 8 hPa 6 hPa 16 hPa, 2012 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6.3 [48%]153 hrs (135%) [49%] 13 [100%], 2011 0 [0%], 2014
Wet Hours 1
[Mean rain rate: 0.5 mm/h]
34 hrs (89%) [5.7%] 9, 2012 0, 2011
Cloud Cover not available
Events None
Comments ~08-09 Moderate Rain
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