Daily Report for 13th April 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.3 °C (+2.5) 23:56 7.2 °C (+2.5) 7.5 °C (+2.7), 2014 0.6 °C (-4.2), 2019
Maximum Temperature 17.0 °C (+4.6) 17:06 15.1 °C (+3.1) 17.3 °C (+4.9), 2016 8.8 °C (-3.6), 2019
Mean Temperature 11.6 °C (+3.6) 10.5 °C (+2.8) 11.9 °C, 2014 4.8 °C, 2019
Minimum Humidity 54% 18:46 59% 78%, 2018 39%, 2016
Maximum Humidity 97% 05:30 92% 97%, 2009 71%, 2017
Mean Humidity 83% 77% 87%, 2013 54%, 2016
Minimum Pressure 1009 hPa 16:35 1010 hPa 1029 hPa, 2015 1003 hPa, 2018
Maximum Pressure 1014 hPa 00:05 1016 hPa 1032 hPa, 2015 1006 hPa, 2012
Mean Pressure 1012 hPa 1013 hPa 1030 hPa, 2015 1005 hPa, 2012
Mean Wind Speed n/a (-4.9) 0.0 mph (-4.9) 9.6, 2020 1.5, 2016
Maximum Wind Speed n/a 0.0 mph 19.4, 2020 7.4, 2012
Maximum Gust n/a 0.0 mph 27.6, 2020 10, 2012
Mean Wind Direction n/a
Rainfall trace 8.8 mm (41%) 6.5, 2013
Maximum Hourly Rain n/a 2.1, 2013
Maximum 10-min Rain n/a 1.2, 2012
Maximum Rain Rate n/a 17, 2013
Minimum Dew Point 3.3 °C 23:56 3.5 °C 5.2 °C, 2018 -3.9 °C, 2011
Maximum Dew Point 12.5 °C 13:02 8.9 °C 12.5 °C, 2009 2.9 °C, 2011
Mean Dew Point 8.5 °C 6.3 °C 8.5 °C, 2009 0.1 °C, 2019
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 9.6 °C * 7.4 °C 9.6 °C, 2009 0.6 °C, 2019
Day Maximum (09-21) 17.0 °C 15.1 °C 17.6 °C, 2016 8.8 °C, 2019
Max 10m Temp Rise 0.8 °C 13:02 0.3 °C 0.9 °C, 2012 0.3 °C, 2018
Max 1hr Temp Rise 3.0 °C 13:06 0.8 °C 3.4 °C, 2013 1.3 °C, 2018
Max 1hr Hum Rise 7% 21:43 2% 18%, 2019 3%, 2017
Max 10m Temp Fall 0.5 °C 09:34 0.2 °C 1.3 °C, 2019 0.2 °C, 2018
Max 1hr Temp Fall 2.1 °C 21:35 0.5 °C 2.7 °C, 2019 0.7 °C, 2018
Max 1hr Hum Fall 13% 17:15 3% 25%, 2019 5%, 2018
Max 10m Wind Speed n/a 0.0 mph 14.5, 2020 6.1, 2012
Minimum Feels-like n/a 0.0 °C 6.2, 2014 -2.9, 2019
Maximum Feels-like n/a 0.0 °C 17.6, 2016 8.6, 2019
Mean Feels-like n/a 0.0 °C 11.5, 2014 2.5, 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 9.7 °C (+2.1) 7.9 °C (+0.7) 11.7 °C (+4.1), 2016 5.6 °C (-2.0), 2018
Humidity Range 43% 33% 55%, 2012 17%, 2018
Pressure Range 5 hPa 7 hPa 13 hPa, 2020 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5 [41%]63 hrs (110%) [40%] 12.2 [99%], 2014 0 [0%], 2018
Wet Hours 0.217 hrs (83%) [5.3%] 7, 2013 0, 2010
Cloud Cover not available
Events None
Comments ~Wet Ground observed on awakening at 1100 -
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