Daily Report for 18th January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.2 °C (+0.8) 23:57 3.8 °C (+1.4) 7.6 °C (+5.2), 2014 -3.3 °C (-5.7), 2017
Maximum Temperature 11.2 °C (+4.2) 03:44 8.2 °C (+1.2) 11.9 °C (+4.9), 2012 1.8 °C (-5.2), 2013
Mean Temperature 7.4 °C (+2.5) 6.0 °C (+1.3) 9.3 °C, 2012 -0.8 °C, 2013
Minimum Humidity 62% 05:56 74% 95%, 2010 50%, 2009
Maximum Humidity 95% 01:06 92% 98%, 2010 82%, 2017
Mean Humidity 74% 84% 98%, 2010 70%, 2017
Minimum Pressure 991 hPa 04:01 1002 hPa 1036 hPa, 2017 989 hPa, 2014
Maximum Pressure 1007 hPa 23:30 1013 hPa 1039 hPa, 2017 993 hPa, 2014
Mean Pressure 1000 hPa 1007 hPa 1038 hPa, 2017 990 hPa, 2014
Mean Wind Speed 10.4 mph (+5.2) 6.9 mph (+1.7) 10.4 mph, 2018 0.2 mph, 2017
Maximum Wind Speed 31.0 mph 04:25 18.0 mph 31.0 mph, 2018 3.8 mph, 2017
Maximum Gust 47.2 mph 05:20 29.3 mph 47.2 mph, 2018 5.2 mph, 2017
Mean Wind Direction W
Rainfall 1.2 mm 35.0 mm (110%) 7.6 mm, 2011
Maximum Hourly Rain 0.6 mm 01:02 3.0 mm, 2009
Maximum 10-min Rain 0.4 mm 00:12 1.1 mm, 2011
Maximum Rain Rate 2.4 mm/h 00:11 10 mm/h, 2011
Minimum Dew Point -0.1 °C 23:26 1.2 °C 4.8 °C, 2014 -6.8 °C, 2017
Maximum Dew Point 8.4 °C 02:17 6.0 °C 11.1 °C, 2012 -2.3 °C, 2013
Mean Dew Point 3.0 °C 3.4 °C 8.4 °C, 2012 -5.0 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 5.3 °C * 21:09 4.5 °C 6.8 °C, 2014 -3.3 °C, 2017
Day Maximum (09-21) * 8.8 °C * 14:24 7.9 °C 11.9 °C, 2012 -0.8 °C, 2013
Max 10m Temp Rise 0.5 °C 02:24 0.4 °C 0.5 °C, 2017 0.1 °C, 2013
Max 1hr Temp Rise 1.7 °C 01:26 0.9 °C 1.8 °C, 2017 0.4 °C, 2013
Max 1hr Hum Rise 6% 08:04 5% 6%, 2013 2%, 2010
Max 10m Temp Fall 0.4 °C 06:00 0.4 °C 0.4 °C, 2017 0.1 °C, 2012
Max 1hr Temp Fall 1.8 °C 06:51 1.0 °C 1.8 °C, 2018 0.3 °C, 2012
Max 1hr Hum Fall 15% 03:13 7% 15%, 2018 0%, 2010
Max 10m Wind Speed 23.3 mph 04:44 13.9 mph 23.3 mph, 2018 2.7 mph, 2017
Minimum Feels-like -1.2 °C 23:26 -0.6 °C 4.7 °C, 2014 -8.7 °C, 2013
Maximum Feels-like 11.3 °C 03:17 7.5 °C 13.7 °C, 2012 -0.4 °C, 2013
Mean Feels-like 4.2 °C 3.1 °C 8.9 °C, 2012 -5.3 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 18 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.0 °C (+3.4) 4.4 °C (-0.2) 8.0 °C (+3.4), 2018 2.2 °C (-2.4), 2014
Humidity Range 33% 18% 44%, 2009 3%, 2010
Pressure Range 16 hPa 12 hPa 16 hPa, 2018 1 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [53%]27 hrs (102%) [20%] 7.5 [99%], 2017 0 [0%], 2012
Wet Hours 2
[Mean rain rate: 0.6 mm/h]
30 hrs (77%) [6.9%] 10, 2013 , 2009
Cloud Cover unknown
Events None
Comments blr
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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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