Daily Report for 9th January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.2 °C (+1.8) 02:01 3.6 °C (+1.1) 8.4 °C (+6.0), 2015 -4.2 °C (-6.6), 2010
Maximum Temperature 7.7 °C (+0.7) 23:43 8.3 °C (+1.2) 14.8 °C (+7.8), 2015 0.6 °C (-6.4), 2010
Mean Temperature 5.5 °C (+1.2) 5.7 °C (+1.2) 11.9 °C, 2015 -1.9 °C, 2010
Minimum Humidity 88% 09:47 74% 88%, 2018 64%, 2014
Maximum Humidity 94% 20:42 92% 98%, 2013 84%, 2017
Mean Humidity 91% 84% 91%, 2013 78%, 2014
Minimum Pressure 1003 hPa 22:45 999 hPa 1028 hPa, 2019 982 hPa, 2016
Maximum Pressure 1015 hPa 00:15 1012 hPa 1033 hPa, 2012 997 hPa, 2016
Mean Pressure 1007 hPa 1006 hPa 1030 hPa, 2012 989 hPa, 2016
Mean Wind Speed 3.8 mph (-1.4) 7.3 mph (+2.1) 11.1 mph, 2015 2.3 mph, 2013
Maximum Wind Speed 10.6 mph 04:42 19.1 mph 28.4 mph, 2015 9.0 mph, 2013
Maximum Gust 16.1 mph 00:24 31.4 mph 38.9 mph, 2016 11.4 mph, 2013
Mean Wind Direction SSE
Rainfall 0.0 mm 23.2 mm (145%) 5.0 mm, 2017
Maximum Hourly Rain n/a 2.4, 2016
Maximum 10-min Rain n/a 1.3, 2017
Maximum Rain Rate n/a 36, 2017
Minimum Dew Point 2.6 °C 01:45 1.1 °C 6.1 °C, 2012 -5.4 °C, 2010
Maximum Dew Point 6.6 °C 23:52 6.0 °C 13.2 °C, 2015 -2.3 °C, 2010
Mean Dew Point 4.2 °C 3.2 °C 8.9 °C, 2015 -4.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 4.1 °C * 22:28 4.0 °C 9.2 °C, 2014 -4.2 °C, 2010
Day Maximum (09-21) * 7.1 °C * 20:49 7.9 °C 14.8 °C, 2015 0.6 °C, 2010
Max 10m Temp Rise 0.2 °C 03:49 0.5 °C 0.8 °C, 2010 0.2 °C, 2012
Max 1hr Temp Rise 0.4 °C 11:59 1.1 °C 1.4 °C, 2011 0.4 °C, 2018
Max 1hr Hum Rise 4% 10:52 6% 13%, 2015 3%, 2012
Max 10m Temp Fall 0.1 °C 00:43 0.5 °C 1.2 °C, 2016 0.1 °C, 2018
Max 1hr Temp Fall 0.2 °C 01:32 1.1 °C 2.8 °C, 2016 0.2 °C, 2018
Max 1hr Hum Fall 1% 08:39 8% 15%, 2014 1%, 2018
Max 10m Wind Speed 7.2 mph 04:51 14.9 mph 20.4 mph, 2015 7.2 mph, 2018
Minimum Feels-like -0.5 °C 00:24 -0.9 °C 5.8 °C, 2012 -9.8 °C, 2010
Maximum Feels-like 7.3 °C 22:10 7.5 °C 17.4 °C, 2015 -3.3 °C, 2010
Mean Feels-like 3.4 °C 2.7 °C 12.2 °C, 2015 -6.7 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 22 hrs, 2010 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.5 °C (-1.1) 4.7 °C (+0.1) 8.4 °C (+3.8), 2013 3.5 °C (-1.1), 2018
Humidity Range 6% 18% 32%, 2014 6%, 2017
Pressure Range 12 hPa 13 hPa 20 hPa, 2017 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]11 hrs (88%) [17%] 7.3 [101%], 2011 0 [0%], 2018
Wet Hours 014 hrs (72%) [6.5%] 8, 2017 , 2009
Cloud Cover Overcast
Events None
Comments -
Extra Comments
Issues None known
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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Webcam Summary of Cloud Conditions

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