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 2.3 °C, 2013 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 3 hPa, 2009
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 time of the extremum (if the value persisted for >1 minute).
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; their reliablity is questionable and they are provided for interest only.
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