Daily Report for 17th February 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.8 °C (+3.9) 02:06 -0.1 °C (-2.3) 7.1 °C (+5.2), 2017 -0.3 °C (-2.2), 2010
Maximum Temperature 11.2 °C (+3.8) 14:20 5.3 °C (-1.9) 12.7 °C (+5.3), 2017 7.0 °C (-0.4), 2016
Mean Temperature 8.5 °C (+3.9) 2.6 °C (-2.1) 9.6 °C, 2012 3.5 °C, 2010
Minimum Humidity 68% 00:11 67% 80%, 2011 47%, 2015
Maximum Humidity 93% 23:03 95% 98%, 2010 83%, 2017
Mean Humidity 80% 81% 89%, 2011 72%, 2016
Minimum Pressure 1024 hPa 13:37 1004 hPa 1025 hPa, 2017 989 hPa, 2010
Maximum Pressure 1027 hPa 16:22 1012 hPa 1041 hPa, 2015 992 hPa, 2010
Mean Pressure 1026 hPa 1008 hPa 1035 hPa, 2015 990 hPa, 2010
Mean Wind Speed n/a (-5.1) 0.0 mph (-5.1) 6, 2014 1.8, 2017
Maximum Wind Speed n/a 0.0 mph 16.1, 2014 6.4, 2017
Maximum Gust n/a 0.0 mph 23, 2012 9.4, 2017
Mean Wind Direction n/a
Rainfall 0.0 mm 61.6 mm (254%) 7.0 mm, 2016
Maximum Hourly Rain n/a 2.3, 2016
Maximum 10-min Rain n/a 0.6, 2016
Maximum Rain Rate n/a 8, 2016
Minimum Dew Point 2.4 °C 00:57 -3.0 °C 3.9 °C, 2014 -3.5 °C, 2015
Maximum Dew Point 8.4 °C 20:59 2.4 °C 8.4 °C, 2009 2.5 °C, 2015
Mean Dew Point 6.0 °C -0.0 °C 6.3 °C, 2012 -0.2 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 5.8 °C 0.0 °C 7.9 °C, 2017 0.4 °C, 2013
Day Maximum (09-21) 11.2 °C 5.3 °C 12.7 °C, 2017 7.0 °C, 2016
Max 10m Temp Rise 0.4 °C 13:23 0.3 °C 0.6 °C, 2015 0.3 °C, 2011
Max 1hr Temp Rise 1.3 °C 13:37 0.8 °C 2.7 °C, 2018 1.1 °C, 2014
Max 1hr Hum Rise 5% 01:42 5% 13%, 2013 3%, 2011
Max 10m Temp Fall 0.4 °C 01:00 0.4 °C 0.5 °C, 2015 0.2 °C, 2011
Max 1hr Temp Fall 0.7 °C 01:08 0.8 °C 2.3 °C, 2015 0.7 °C, 2009
Max 1hr Hum Fall 4% 11:07 5% 21%, 2013 4%, 2009
Max 10m Wind Speed n/a 0.0 mph 11.6, 2014 4.1, 2017
Minimum Feels-like n/a 0.0 °C 5.7, 2017 -2.6, 2015
Maximum Feels-like n/a 0.0 °C 12.7, 2017 5.2, 2016
Mean Feels-like n/a 0.0 °C 8.9, 2017 1.8, 2016
Air-frost Hrs 0 hrs 4 hrs 0.4 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.4 °C (-0.1) 5.4 °C (+0.3) 9.3 °C (+3.8), 2013 3.5 °C (-2.0), 2016
Humidity Range 25% 28% 43%, 2013 17%, 2011
Pressure Range 3 hPa 8 hPa 18 hPa, 2015 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.4 [4%]49 hrs (111%) [33%] 9 [100%], 2015 0.1 [1%], 2012
Wet Hours 0 hrs (0%) [0%] 7, 2016 , 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? No
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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