Daily Report for 31st October 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.3 °C (+3.1) 05:12 9.1 °C (+0.3) 13.4 °C (+6.2), 2014 -0.8 °C (-8.0), 2018
Maximum Temperature 16.8 °C (+4.2) 14:08 15.5 °C (+0.9) 21.3 °C (+8.7), 2014 10.9 °C (-1.7), 2019
Mean Temperature 12.8 °C (+3.7) 12.0 °C (+0.6) 16.7 °C, 2014 6.8 °C, 2018
Minimum Humidity 83% 15:14 66% 85%, 2010 54%, 2014
Maximum Humidity 98% 09:39 93% 98%, 2009 81%, 2016
Mean Humidity 94% 82% 94%, 2009 77%, 2012
Minimum Pressure 1020 hPa 05:03 1013 hPa 1024 hPa, 2016 978 hPa, 2012
Maximum Pressure 1023 hPa 22:21 1020 hPa 1030 hPa, 2017 999 hPa, 2012
Mean Pressure 1022 hPa 1016 hPa 1028 hPa, 2016 989 hPa, 2012
Mean Wind Speed 2.6 mph (-1.5) 3.5 mph (-0.6) 7.3 mph, 2012 0.5 mph, 2016
Maximum Wind Speed 7.2 mph 9.6 mph 20.1 mph, 2012 6.5 mph, 2016
Maximum Gust 10.2 mph 11:06 14.2 mph 29.7 mph, 2012 8.5 mph, 2015
Mean Wind Direction SE
Rainfall 1.9 mm 28.9 mm (44%) 1.9 mm, 2009
Maximum Hourly Rain 1.9 mm 08:12 1.9 mm, 2009
Maximum 10-min Rain 1.1 mm 08:12 1.1 mm, 2009
Maximum Rain Rate n/a 08:06 1, 2010
Minimum Dew Point 10.3 °C 05:07 6.4 °C 11.0 °C, 2014 -2.0 °C, 2018
Maximum Dew Point 16.8 °C 13:10 11.5 °C 16.8 °C, 2009 7.4 °C, 2019
Mean Dew Point 12.6 °C 8.9 °C 13.1 °C, 2014 3.6 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.3 °C 9.5 °C 15.2 °C, 2011 -0.8 °C, 2018
Day Maximum (09-21) 16.8 °C 15.4 °C 21.3 °C, 2014 10.9 °C, 2019
Max 10m Temp Rise 0.8 °C 11:01 0.3 °C 1.1 °C, 2016 0.2 °C, 2010
Max 1hr Temp Rise 2.1 °C 11:01 0.7 °C 4.5 °C, 2018 0.4 °C, 2013
Max 1hr Hum Rise 6% 20:11 3% 8%, 2013 3%, 2010
Max 10m Temp Fall 0.8 °C 16:07 0.3 °C 0.8 °C, 2009 0.2 °C, 2010
Max 1hr Temp Fall 2.3 °C 17:01 0.7 °C 2.4 °C, 2016 0.6 °C, 2012
Max 1hr Hum Fall 15% 14:22 5% 15%, 2009 3%, 2010
Max 10m Wind Speed 5.3 mph 11:15 4.9 mph 14.6 mph, 2012 4.2 mph, 2016
Minimum Feels-like 11.5 °C 05:12 6.9 °C 16.0 °C, 2014 -0.8 °C, 2018
Maximum Feels-like 21.0 °C 14:01 12.3 °C 25.0 °C, 2014 11.0 °C, 2019
Mean Feels-like 14.7 °C 9.6 °C 19.6 °C, 2014 6.5 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 3 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.5 °C (+1.1) 6.4 °C (+0.6) 13.3 °C (+7.9), 2018 1.6 °C (-3.8), 2013
Humidity Range 15% 27% 42%, 2014 10%, 2016
Pressure Range 3 hPa 6 hPa 21 hPa, 2012 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.5 [17%]78 hrs (74%) [26%] 8 [92%], 2018 0 [0%], 2013
Wet Hours 1
[Mean rain rate: 1.9 mm/h]
32 hrs (66%) [4.3%] 4, 2010 0, 2011
Cloud Cover not available
Events None
Comments 0730-0830 Heavy Showers
Extra Comments
Issues 22nd - 31st: Rainfall data is approximate and 10-min totals & rain rates are unavailable due to 5-min logging, but monthly sum is correct.
Observer Absent? Yes - observations may be unreliable
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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