Daily Report for 18th January 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -3.3 °C (-5.7) 06:39 1.9 °C (-0.6) 7.6 °C (+5.2), 2014 -3.3 °C (-5.7), 2017
Maximum Temperature 4.0 °C (-3.0) 14:51 7.4 °C (+0.4) 11.9 °C (+4.9), 2012 1.8 °C (-5.2), 2013
Mean Temperature -0.1 °C (-4.3) 4.7 °C (-0.1) 9.3 °C, 2012 -0.8 °C, 2013
Minimum Humidity 53% 16:02 68% 95%, 2010 50%, 2009
Maximum Humidity 82% 10:25 83% 98%, 2010 82%, 2017
Mean Humidity 70% 77% 98%, 2010 70%, 2017
Minimum Pressure 1036 hPa 22:12 1019 hPa 1036 hPa, 2017 989 hPa, 2014
Maximum Pressure 1039 hPa 07:49 1027 hPa 1039 hPa, 2017 993 hPa, 2014
Mean Pressure 1038 hPa 1023 hPa 1038 hPa, 2017 990 hPa, 2014
Mean Wind Speed 0.2 mph (-5.0) 3.9 mph (-1.3) 6.5 mph, 2013 0.2 mph, 2017
Maximum Wind Speed 3.8 mph 11:47 11.2 mph 12.8 mph, 2014 3.8 mph, 2017
Maximum Gust 5.2 mph 10:49 16.4 mph 17.6 mph, 2012 5.2 mph, 2017
Mean Wind Direction S
Rainfall 0.0 mm 48.0 mm (150%) 7.6 mm, 2011
Maximum Hourly Rain n/a 3, 2009
Maximum 10-min Rain n/a 1.1, 2011
Maximum Rain Rate n/a 10, 2011
Minimum Dew Point -6.8 °C 05:51 -1.9 °C 4.8 °C, 2014 -6.8 °C, 2017
Maximum Dew Point -1.8 °C 12:00 3.8 °C 11.1 °C, 2012 -2.3 °C, 2013
Mean Dew Point -5.0 °C 1.0 °C 8.4 °C, 2012 -5.0 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -3.3 °C 06:39 3.0 °C 6.8 °C, 2014 -3.3 °C, 2017
Day Maximum (09-21) 4.0 °C 14:51 7.2 °C 11.9 °C, 2012 -0.8 °C, 2013
Max 10m Temp Rise 0.5 °C 09:28 0.3 °C 0.5 °C, 2017 0.1 °C, 2013
Max 1hr Temp Rise 1.8 °C 10:20 1.2 °C 1.8 °C, 2017 0.4 °C, 2013
Max 1hr Hum Rise 5% 18:45 4% 6%, 2013 2%, 2010
Max 10m Temp Fall 0.4 °C 18:18 0.5 °C 0.4 °C, 2017 0.1 °C, 2012
Max 1hr Temp Fall 1.5 °C 18:34 1.4 °C 1.5 °C, 2017 0.3 °C, 2012
Max 1hr Hum Fall 9% 12:39 6% 10%, 2011 0%, 2010
Max 10m Wind Speed 2.7 mph 11:39 8.5 mph 10.3 mph, 2013 2.7 mph, 2017
Minimum Feels-like -5.3 °C 06:16 -1.8 °C 4.7 °C, 2014 -8.7 °C, 2013
Maximum Feels-like 4.0 °C 14:28 7.0 °C 13.7 °C, 2012 -0.4 °C, 2013
Mean Feels-like -0.2 °C 2.9 °C 8.9 °C, 2012 -5.3 °C, 2013
Air-frost Hrs 11 hrs 2 hrs 18 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.3 °C (+2.7) 5.5 °C (+0.9) 7.3 °C (+2.7), 2017 2.2 °C (-2.4), 2014
Humidity Range 29% 15% 44%, 2009 3%, 2010
Pressure Range 3 hPa 8 hPa 15 hPa, 2013 1 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7.5 [99%]36 hrs (137%) [27%] 7.5 [99%], 2017 0 [0%], 2012
Wet Hours 064 hrs (163%) [15%] 10, 2013 , 2009
Cloud Cover Sunny with periods of Mostly Sunny
Events Air Frost
Maximum possible sunshine
Comments -
Extra Comments mysterious false tips removed
Issues None known
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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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