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 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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