Daily Report for 4th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.6 °C (+2.2) 04:52 16.0 °C (+3.7) 17.6 °C (+5.2), 2015 10.6 °C (-1.8), 2019
Maximum Temperature 25.5 °C (+3.7) 16:29 27.2 °C (+5.4) 26.7 °C (+4.9), 2014 20.0 °C (-1.8), 2020
Mean Temperature 19.8 °C (+3.0) 20.8 °C (+4.6) 21.8 °C, 2015 17.3 °C, 2016
Minimum Humidity 44% 16:39 42% 79%, 2020 33%, 2014
Maximum Humidity 82% 07:11 87% 96%, 2012 66%, 2011
Mean Humidity 61% 67% 86%, 2020 47%, 2011
Minimum Pressure 1012 hPa 20:11 1015 hPa 1022 hPa, 2019 1003 hPa, 2014
Maximum Pressure 1014 hPa 05:38 1019 hPa 1029 hPa, 2019 1012 hPa, 2012
Mean Pressure 1013 hPa 1017 hPa 1026 hPa, 2019 1008 hPa, 2014
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 9.3, 2020 1.5, 2019
Maximum Wind Speed n/a 0.0 mph 17.6, 2016 7.1, 2019
Maximum Gust n/a 0.0 mph 30, 2020 10.4, 2019
Mean Wind Direction n/a
Rainfall 0.0 mm 0.0 mm (0%) 9.5 mm, 2012
Maximum Hourly Rain n/a 2.8, 2012
Maximum 10-min Rain n/a 2.3, 2015
Maximum Rain Rate n/a 72, 2015
Minimum Dew Point 9.2 °C 00:12 10.4 °C 14.5 °C, 2012 5.9 °C, 2014
Maximum Dew Point 15.7 °C 14:24 17.3 °C 18.4 °C, 2015 9.8 °C, 2011
Mean Dew Point 11.7 °C 14.0 °C 15.7 °C, 2012 8.1 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.6 °C 16.0 °C 17.6 °C, 2015 10.6 °C, 2019
Day Maximum (09-21) 25.5 °C 27.2 °C 26.7 °C, 2014 20.0 °C, 2020
Max 10m Temp Rise 1.0 °C 14:29 0.9 °C 1.0 °C, 2009 0.4 °C, 2015
Max 1hr Temp Rise 2.9 °C 10:23 3.3 °C 3.2 °C, 2011 1.7 °C, 2012
Max 1hr Hum Rise 16% 13:44 9% 19%, 2018 5%, 2012
Max 10m Temp Fall 0.8 °C 16:46 0.7 °C 0.8 °C, 2009 0.3 °C, 2012
Max 1hr Temp Fall 1.6 °C 13:29 1.8 °C 2.5 °C, 2014 0.8 °C, 2012
Max 1hr Hum Fall 16% 15:24 13% 20%, 2015 6%, 2020
Max 10m Wind Speed n/a 0.0 mph 14.5, 2016 4.8, 2019
Minimum Feels-like n/a 0.0 °C 19.9, 2012 11.3, 2019
Maximum Feels-like n/a 0.0 °C 30.1, 2015 22.8, 2016
Mean Feels-like n/a 0.0 °C 25.4, 2015 19.4, 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 10.9 °C (+1.4) 11.2 °C (+1.8) 16.0 °C (+6.5), 2019 5.0 °C (-4.5), 2020
Humidity Range 38% 45% 55%, 2019 14%, 2020
Pressure Range 2 hPa 4 hPa 11 hPa, 2014 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7.3 [49%]34 hrs (137%) [56%] 14 [93%], 2019 0 [0%], 2020
Wet Hours 00 hrs (0%) [0%] 7, 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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