Daily Report for 25th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.1 °C (-1.8) 05:46 13.7 °C (+0.5) 19.4 °C (+5.4), 2019 10.4 °C (-3.5), 2011
Maximum Temperature 24.0 °C (+1.3) 17:23 21.9 °C (-0.5) 36.8 °C (+14.1), 2019 20.3 °C (-2.4), 2015
Mean Temperature 17.5 °C (-0.3) 17.2 °C (-0.0) 28.4 °C, 2019 15.5 °C, 2015
Minimum Humidity 43% 17:50 53% 74%, 2020 32%, 2012
Maximum Humidity 95% 07:17 90% 95%, 2009 70%, 2011
Mean Humidity 72% 74% 85%, 2020 50%, 2012
Minimum Pressure 1016 hPa 01:40 1009 hPa 1017 hPa, 2016 1004 hPa, 2015
Maximum Pressure 1023 hPa 16:23 1014 hPa 1023 hPa, 2009 1012 hPa, 2011
Mean Pressure 1020 hPa 1011 hPa 1020 hPa, 2009 1009 hPa, 2020
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 6.4, 2016 2.3, 2018
Maximum Wind Speed n/a 0.0 mph 18.7, 2020 8.3, 2017
Maximum Gust n/a 0.0 mph 27.4, 2016 10.7, 2011
Mean Wind Direction n/a
Rainfall 0.0 mm 46.4 mm (137%) 9.8 mm, 2014
Maximum Hourly Rain n/a 6.3, 2014
Maximum 10-min Rain n/a 4.6, 2014
Maximum Rain Rate n/a 102, 2014
Minimum Dew Point 9.8 °C 18:10 9.7 °C 14.5 °C, 2019 4.3 °C, 2011
Maximum Dew Point 14.0 °C 10:40 14.8 °C 21.1 °C, 2019 11.0 °C, 2011
Mean Dew Point 11.8 °C 12.2 °C 17.4 °C, 2019 7.5 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.1 °C 13.8 °C 19.4 °C, 2019 10.4 °C, 2011
Day Maximum (09-21) 24.0 °C 21.9 °C 36.8 °C, 2019 20.3 °C, 2015
Max 10m Temp Rise 0.6 °C 12:51 0.7 °C 1.1 °C, 2012 0.4 °C, 2020
Max 1hr Temp Rise 2.5 °C 13:00 1.8 °C 4.7 °C, 2012 1.6 °C, 2017
Max 1hr Hum Rise 10% 18:58 8% 28%, 2014 7%, 2012
Max 10m Temp Fall 0.7 °C 18:36 0.7 °C 2.6 °C, 2014 0.4 °C, 2010
Max 1hr Temp Fall 1.9 °C 19:12 1.5 °C 5.6 °C, 2014 1.2 °C, 2010
Max 1hr Hum Fall 11% 11:53 9% 20%, 2015 6%, 2017
Max 10m Wind Speed 3.5 mph 1.9 mph 12.7 mph, 2016 3.5 mph, 2009
Minimum Feels-like n/a 0.0 °C 23.1, 2019 10.4, 2011
Maximum Feels-like n/a 0.0 °C 44.6, 2019 22.3, 2015
Mean Feels-like n/a 0.0 °C 34.1, 2019 16.1, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 11.9 °C (+3.2) 8.2 °C (-1.0) 17.4 °C (+8.7), 2019 6.4 °C (-2.3), 2020
Humidity Range 52% 37% 52%, 2009 18%, 2020
Pressure Range 7 hPa 5 hPa 13 hPa, 2015 2 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8.7 [60%]135 hrs (90%) [36%] 13 [90%], 2012 0.1 [1%], 2020
Wet Hours 035 hrs (129%) [5.9%] 5, 2020 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