Daily Report for 17th January 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -1.4 °C (-3.8) 23:55 2.2 °C (-0.3) 6.6 °C (+4.2), 2014 -5.5 °C (-7.9), 2013
Maximum Temperature 4.6 °C (-2.4) 13:55 7.6 °C (+0.5) 9.8 °C (+2.8), 2011 2.3 °C (-4.7), 2013
Mean Temperature 2.3 °C (-3.1) 5.0 °C (+0.1) 7.6 °C, 2011 -1.1 °C, 2013
Minimum Humidity 49% 15:00 69% 85%, 2011 49%, 2009
Maximum Humidity 84% 09:40 83% 98%, 2010 84%, 2017
Mean Humidity 71% 77% 93%, 2011 68%, 2009
Minimum Pressure 1033 hPa 00:02 1018 hPa 1033 hPa, 2017 987 hPa, 2014
Maximum Pressure 1038 hPa 20:57 1026 hPa 1038 hPa, 2017 993 hPa, 2014
Mean Pressure 1036 hPa 1022 hPa 1036 hPa, 2017 990 hPa, 2014
Mean Wind Speed 0.5 mph (-4.7) 4.1 mph (-1.1) 6.6 mph, 2014 0.5 mph, 2017
Maximum Wind Speed 5.8 mph 11:29 11.6 mph 14.7 mph, 2014 5.8 mph, 2017
Maximum Gust 8.4 mph 11:29 17.0 mph 19.9 mph, 2014 8.4 mph, 2017
Mean Wind Direction SSE
Rainfall 0.0 mm 48.0 mm (159%) 16.1 mm, 2011
Maximum Hourly Rain n/a 5, 2009
Maximum 10-min Rain n/a 1.1, 2011
Maximum Rain Rate n/a 15, 2011
Minimum Dew Point -6.1 °C 19:08 -1.6 °C 5.3 °C, 2014 -6.7 °C, 2013
Maximum Dew Point 1.3 °C 00:11 4.1 °C 8.9 °C, 2011 -0.5 °C, 2013
Mean Dew Point -2.7 °C 1.3 °C 6.5 °C, 2011 -3.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 1.0 °C * 08:46 3.3 °C 8.6 °C, 2011 -5.5 °C, 2013
Day Maximum (09-21) 4.6 °C 13:55 7.4 °C 9.0 °C, 2009 2.3 °C, 2013
Max 10m Temp Rise 0.4 °C 09:52 0.3 °C 0.6 °C, 2010 0.1 °C, 2011
Max 1hr Temp Rise 1.4 °C 10:23 1.2 °C 2.4 °C, 2013 0.4 °C, 2011
Max 1hr Hum Rise 6% 19:26 4% 6%, 2012 2%, 2016
Max 10m Temp Fall 0.5 °C 18:24 0.5 °C 0.5 °C, 2012 0.1 °C, 2016
Max 1hr Temp Fall 2.0 °C 19:01 1.4 °C 2.0 °C, 2017 0.3 °C, 2016
Max 1hr Hum Fall 13% 11:27 6% 13%, 2017 3%, 2016
Max 10m Wind Speed 4.4 mph 13:17 8.9 mph 12.8 mph, 2014 4.4 mph, 2017
Minimum Feels-like -3.2 °C 23:57 -1.6 °C 2.8 °C, 2011 -5.5 °C, 2013
Maximum Feels-like 4.6 °C 13:35 7.2 °C 10.6 °C, 2011 2.3 °C, 2013
Mean Feels-like 1.9 °C 3.0 °C 6.7 °C, 2011 -1.9 °C, 2013
Air-frost Hrs 3 hrs 1 hrs 12 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.0 °C (+1.4) 5.4 °C (+0.8) 8.5 °C (+3.9), 2012 1.9 °C (-2.7), 2014
Humidity Range 35% 15% 39%, 2009 12%, 2011
Pressure Range 5 hPa 8 hPa 19 hPa, 2010 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [93%]28 hrs (114%) [23%] 7 [93%], 2017 0.1 [1%], 2011
Wet Hours 064 hrs (173%) [16%] 8, 2011 , 2009
Cloud Cover Sunny with periods of Mostly Sunny
Events None
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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