Daily Report for 25th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.7 °C (-6.8) 07:01 11.7 °C (+0.4) 14.7 °C (+4.2), 2017 3.7 °C (-6.8), 2018
Maximum Temperature 18.1 °C (+0.7) 15:46 20.2 °C (+1.1) 20.9 °C (+3.5), 2011 13.4 °C (-4.0), 2010
Mean Temperature 11.7 °C (-3.0) 15.7 °C (+0.7) 17.3 °C, 2016 9.5 °C, 2010
Minimum Humidity 43% 15:44 54% 72%, 2017 43%, 2018
Maximum Humidity 92% 07:19 90% 97%, 2013 83%, 2010
Mean Humidity 69% 74% 87%, 2017 64%, 2016
Minimum Pressure 1034 hPa 23:50 1017 hPa 1034 hPa, 2018 988 hPa, 2012
Maximum Pressure 1039 hPa 10:50 1023 hPa 1039 hPa, 2018 989 hPa, 2012
Mean Pressure 1037 hPa 1020 hPa 1037 hPa, 2018 988 hPa, 2012
Mean Wind Speed 2.8 mph (-1.1) 4.8 mph (+0.9) 8.5 mph, 2016 1.5 mph, 2013
Maximum Wind Speed 11.4 mph 14:46 13.8 mph 20.6 mph, 2016 6.7 mph, 2013
Maximum Gust 18.2 mph 14:33 21.4 mph 29.0 mph, 2016 8.1 mph, 2013
Mean Wind Direction SSW
Rainfall 0.0 mm 26.0 mm (55%) 0.6 mm, 2012
Maximum Hourly Rain n/a 0.6, 2012
Maximum 10-min Rain n/a 0.6, 2012
Maximum Rain Rate n/a 0.4, 2017
Minimum Dew Point 2.9 °C 06:32 8.6 °C 13.1 °C, 2013 2.3 °C, 2010
Maximum Dew Point 7.5 °C 10:07 13.1 °C 16.2 °C, 2013 6.0 °C, 2010
Mean Dew Point 5.6 °C 10.8 °C 14.3 °C, 2013 3.8 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 4.4 °C * 07:02 11.9 °C 15.7 °C, 2016 4.4 °C, 2018
Day Maximum (09-21) 18.1 °C 15:23 20.0 °C 20.9 °C, 2011 13.4 °C, 2010
Max 10m Temp Rise 0.8 °C 08:03 0.6 °C 0.9 °C, 2014 0.2 °C, 2017
Max 1hr Temp Rise 3.3 °C 08:17 2.3 °C 3.3 °C, 2018 0.7 °C, 2017
Max 1hr Hum Rise 8% 18:53 9% 10%, 2015 6%, 2010
Max 10m Temp Fall 0.7 °C 18:35 0.5 °C 0.7 °C, 2018 0.2 °C, 2014
Max 1hr Temp Fall 2.4 °C 18:57 1.7 °C 2.7 °C, 2015 0.9 °C, 2014
Max 1hr Hum Fall 17% 10:45 12% 17%, 2015 8%, 2010
Max 10m Wind Speed 8.7 mph 14:16 9.9 mph 16.6 mph, 2016 4.8 mph, 2009
Minimum Feels-like 4.2 °C 05:25 12.6 °C 17.6 °C, 2017 0.9 °C, 2009
Maximum Feels-like 18.1 °C 14:56 22.3 °C 24.9 °C, 2013 13.4 °C, 2010
Mean Feels-like 11.7 °C 17.6 °C 20.4 °C, 2013 8.6 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.4 °C (+7.5) 8.5 °C (+0.7) 14.4 °C (+7.5), 2018 3.4 °C (-3.5), 2017
Humidity Range 49% 37% 49%, 2018 22%, 2017
Pressure Range 5 hPa 6 hPa 11 hPa, 2016 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10.8 [99%]143 hrs (123%) [50%] 10.8 [99%], 2018 0 [0%], 2017
Wet Hours 029 hrs (85%) [4.8%] 1.5, 2017 0, 2009
Cloud Cover Sunny
Events Maximum possible sunshine
Comments -
Extra Comments
Issues Data from N16. Tmin corrected
Observer Absent? Yes - observations may be unreliable
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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