Daily Report for 15th September 2009

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.6 °C (+2.4) 09:17 12.3 °C (+0.6) 17.0 °C (+5.8), 2016 6.7 °C (-4.5), 2013
Maximum Temperature 15.5 °C (-3.4) 12:05 19.3 °C (-0.6) 29.1 °C (+10.2), 2020 15.2 °C (-3.7), 2013
Mean Temperature 14.4 °C (-0.5) 15.3 °C (-0.0) 22.1 °C, 2016 11.2 °C, 2017
Minimum Humidity 83% 10:54 55% 83%, 2009 45%, 2012
Maximum Humidity 98% 23:02 90% 98%, 2009 84%, 2012
Mean Humidity 91% 73% 91%, 2009 64%, 2012
Minimum Pressure 1019 hPa 14:01 1017 hPa 1023 hPa, 2019 991 hPa, 2015
Maximum Pressure 1024 hPa 01:05 1024 hPa 1028 hPa, 2019 998 hPa, 2015
Mean Pressure 1022 hPa 1020 hPa 1025 hPa, 2019 995 hPa, 2015
Mean Wind Speed 7.2 mph (+3.3) 5.9 mph (+2.0) 7.4 mph, 2010 0.9 mph, 2020
Maximum Wind Speed 19.4 mph 13.7 mph 19.4 mph, 2009 6.9 mph, 2014
Maximum Gust 26.2 mph 11:41 20.9 mph 27.1 mph, 2010 10.0 mph, 2014
Mean Wind Direction N
Rainfall 25.5 mm 35.6 mm (125%) 25.5 mm, 2009
Maximum Hourly Rain 7.4 mm 19:33 7.4 mm, 2009
Maximum 10-min Rain 3.3 mm 19:24 3.3 mm, 2009
Maximum Rain Rate 33 mm/h 19:23 33 mm/h, 2009
Minimum Dew Point 10.9 °C 09:18 7.9 °C 14.0 °C, 2016 5.0 °C, 2011
Maximum Dew Point 14.4 °C 17:29 13.0 °C 19.4 °C, 2020 10.0 °C, 2017
Mean Dew Point 13.0 °C 10.3 °C 16.4 °C, 2016 7.9 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.6 °C 12.5 °C 17.0 °C, 2016 6.7 °C, 2013
Day Maximum (09-21) 15.5 °C 19.3 °C 29.1 °C, 2020 15.2 °C, 2013
Max 10m Temp Rise n/a 17:57 0.3 °C 1, 2011 0.4, 2015
Max 1hr Temp Rise n/a 18:47 0.6 °C 4.8, 2011 1.6, 2015
Max 1hr Hum Rise n/a 18:47 4% 15, 2017 5, 2015
Max 10m Temp Fall n/a 17:47 0.3 °C 0.7, 2016 0.2, 2010
Max 1hr Temp Fall n/a 17:47 0.5 °C 2.7, 2016 0.8, 2010
Max 1hr Hum Fall n/a 17:47 4% 14, 2013 8, 2016
Max 10m Wind Speed 10.7 mph 10:02 9.6 mph 12.2 mph, 2013 3.8 mph, 2020
Minimum Feels-like 15.3 °C 00:49 13.1 °C 23.2 °C, 2016 4.7 °C, 2017
Maximum Feels-like 18.6 °C 16:48 21.4 °C 35.3 °C, 2020 16.8 °C, 2017
Mean Feels-like 17.2 °C 16.9 °C 27.0 °C, 2016 11.2 °C, 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 1.9 °C (-5.7) 7.1 °C (-1.2) 14.0 °C (+6.4), 2019 1.9 °C (-5.7), 2009
Humidity Range 15% 34% 47%, 2011 15%, 2009
Pressure Range 5 hPa 7 hPa 17 hPa, 2013 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]62 hrs (86%) [35%] 10.5 [91%], 2019 0 [0%], 2009
Wet Hours 11
[Mean rain rate: 2.3 mm/h]
17 hrs (82%) [4.7%] 11, 2009 0, 2010
Cloud Cover not available
Events None
Comments 1230 23- Light/Moderate (19-1930 Heavy) 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.
View monthly summary

Daily Graph of Conditions

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


Webcam summary not available for this day

Wind rose