Daily Report for 9th May 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.8 °C (-0.4) 04:52 8.3 °C (+1.5) 14.2 °C (+7.0), 2016 6.3 °C (-0.9), 2010
Maximum Temperature 17.7 °C (+2.0) 14:49 17.4 °C (+2.1) 24.8 °C (+9.1), 2016 11.5 °C (-4.2), 2010
Mean Temperature 11.6 °C (+0.8) 12.5 °C (+1.8) 18.5 °C, 2016 8.4 °C, 2010
Minimum Humidity 38% 15:55 45% 72%, 2012 33%, 2016
Maximum Humidity 84% 05:21 83% 96%, 2019 74%, 2017
Mean Humidity 62% 66% 90%, 2012 56%, 2016
Minimum Pressure 1015 hPa 11:08 1018 hPa 1019 hPa, 2011 993 hPa, 2019
Maximum Pressure 1018 hPa 23:46 1022 hPa 1029 hPa, 2017 1006 hPa, 2019
Mean Pressure 1016 hPa 1020 hPa 1022 hPa, 2017 998 hPa, 2019
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 9.97, 2013 2.4, 2019
Maximum Wind Speed n/a 0.0 mph 24.6, 2013 8.3, 2017
Maximum Gust n/a 0.0 mph 38.4, 2013 12.6, 2017
Mean Wind Direction n/a
Rainfall 0.0 mm 1.3 mm (9%) 4.9 mm, 2012
Maximum Hourly Rain n/a 1.5, 2012
Maximum 10-min Rain n/a 0.9, 2012
Maximum Rain Rate n/a 10, 2016
Minimum Dew Point 2.2 °C 16:14 2.7 °C 8.5 °C, 2012 1.1 °C, 2017
Maximum Dew Point 6.3 °C 09:50 8.7 °C 14.0 °C, 2012 4.3 °C, 2017
Mean Dew Point 4.1 °C 5.8 °C 11.6 °C, 2012 2.6 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.8 °C 8.5 °C 14.2 °C, 2016 6.3 °C, 2010
Day Maximum (09-21) 17.7 °C 17.4 °C 24.8 °C, 2016 11.5 °C, 2010
Max 10m Temp Rise 0.9 °C 13:34 0.8 °C 1.0 °C, 2020 0.5 °C, 2010
Max 1hr Temp Rise 2.3 °C 14:25 2.6 °C 4.8 °C, 2020 1.7 °C, 2010
Max 1hr Hum Rise 10% 22:31 8% 28%, 2013 5%, 2015
Max 10m Temp Fall 0.4 °C 16:07 0.5 °C 1.2 °C, 2013 0.3 °C, 2010
Max 1hr Temp Fall 1.8 °C 21:59 1.6 °C 3.0 °C, 2013 1.1 °C, 2012
Max 1hr Hum Fall 12% 12:38 14% 24%, 2013 6%, 2012
Max 10m Wind Speed n/a 0.0 mph 18.7, 2013 6.1, 2019
Minimum Feels-like n/a 0.0 °C 14.2, 2016 3.1, 2017
Maximum Feels-like n/a 0.0 °C 25.7, 2016 11.5, 2010
Mean Feels-like n/a 0.0 °C 19.5, 2016 7.1, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.9 °C (+2.4) 9.1 °C (+0.6) 15.0 °C (+6.5), 2020 4.5 °C (-4.0), 2012
Humidity Range 46% 38% 56%, 2020 23%, 2012
Pressure Range 3 hPa 5 hPa 14 hPa, 2017 2 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [32%]50 hrs (95%) [41%] 12.5 [90%], 2011 0 [0%], 2012
Wet Hours 02.8 hrs (24%) [1.3%] 6, 2012 0, 2009
Cloud Cover not available
Events None
Comments -
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

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Wind rose