Daily Report for 21st January 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -2.5 °C (-4.8) 23:57 1.4 °C (-1.0) 7.1 °C (+4.8), 2012 -2.5 °C (-4.8), 2017
Maximum Temperature 3.9 °C (-3.1) 14:36 7.1 °C (+0.1) 12.3 °C (+5.3), 2012 1.4 °C (-5.6), 2013
Mean Temperature 0.8 °C (-3.9) 4.3 °C (-0.5) 10.0 °C, 2012 -0.0 °C, 2013
Minimum Humidity 47% 15:29 66% 85%, 2013 47%, 2017
Maximum Humidity 80% 09:47 83% 98%, 2013 80%, 2017
Mean Humidity 66% 76% 92%, 2013 66%, 2017
Minimum Pressure 1024 hPa 00:12 1021 hPa 1038 hPa, 2011 991 hPa, 2013
Maximum Pressure 1029 hPa 00:52 1028 hPa 1040 hPa, 2011 999 hPa, 2013
Mean Pressure 1025 hPa 1024 hPa 1039 hPa, 2011 994 hPa, 2013
Mean Wind Speed 1.5 mph (-3.7) 3.5 mph (-1.7) 8.3 mph, 2012 1.5 mph, 2017
Maximum Wind Speed 7.7 mph 13:19 10.6 mph 19.2 mph, 2012 6.4 mph, 2013
Maximum Gust 10.5 mph 13:19 15.6 mph 28.4 mph, 2012 8.1 mph, 2013
Mean Wind Direction SE
Rainfall 0.0 mm 48.0 mm (129%) 1.0 mm, 2009
Maximum Hourly Rain n/a 1, 2009
Maximum 10-min Rain n/a 0.3, 2014
Maximum Rain Rate n/a n/a
Minimum Dew Point -8.5 °C 18:22 -2.5 °C 0.7 °C, 2014 -8.5 °C, 2017
Maximum Dew Point -1.9 °C 11:00 3.0 °C 8.9 °C, 2012 -1.9 °C, 2017
Mean Dew Point -5.1 °C 0.3 °C 4.8 °C, 2012 -5.1 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * -1.2 °C * 05:44 2.4 °C 8.5 °C, 2012 -1.4 °C, 2016
Day Maximum (09-21) 3.9 °C 14:36 7.0 °C 12.3 °C, 2012 1.4 °C, 2013
Max 10m Temp Rise 0.3 °C 11:49 0.3 °C 0.8 °C, 2016 0.2 °C, 2011
Max 1hr Temp Rise 1.3 °C 11:54 1.3 °C 2.3 °C, 2016 0.4 °C, 2015
Max 1hr Hum Rise 6% 19:22 5% 7%, 2012 2%, 2014
Max 10m Temp Fall 0.4 °C 17:36 0.4 °C 0.4 °C, 2012 0.2 °C, 2010
Max 1hr Temp Fall 1.6 °C 23:05 1.4 °C 1.8 °C, 2013 0.6 °C, 2014
Max 1hr Hum Fall 22% 12:11 7% 22%, 2017 2%, 2015
Max 10m Wind Speed 5.2 mph 13:19 8.0 mph 11.8 mph, 2012 4.7 mph, 2013
Minimum Feels-like -4.5 °C 07:40 -2.0 °C 4.4 °C, 2012 -4.5 °C, 2017
Maximum Feels-like 3.4 °C 15:44 6.7 °C 12.5 °C, 2012 1.3 °C, 2013
Mean Feels-like -0.3 °C 2.5 °C 9.3 °C, 2012 -1.1 °C, 2013
Air-frost Hrs 7 hrs 2 hrs 13 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.4 °C (+1.7) 5.7 °C (+1.1) 9.0 °C (+4.3), 2016 2.8 °C (-1.9), 2015
Humidity Range 33% 17% 44%, 2009 13%, 2013
Pressure Range 5 hPa 7 hPa 9 hPa, 2015 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7.7 [101%]57 hrs (186%) [37%] 7.7 [101%], 2017 0 [0%], 2015
Wet Hours 064 hrs (140%) [13%] 0.5, 2011 , 2009
Cloud Cover Sunny
Events Air Frost
Maximum possible sunshine
Comments -
Extra Comments
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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