Daily Report for 27th April 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.5 °C (-4.2) 04:18 6.2 °C (+1.2) 9.3 °C (+3.6), 2012 1.5 °C (-4.2), 2017
Maximum Temperature 11.1 °C (-3.0) 13:31 15.3 °C (+2.7) 20.8 °C (+6.7), 2010 9.9 °C (-4.2), 2009
Mean Temperature 7.0 °C (-3.6) 10.7 °C (+1.9) 14.1 °C, 2010 6.4 °C, 2016
Minimum Humidity 46% 11:39 46% 63%, 2009 32%, 2016
Maximum Humidity 77% 07:01 76% 89%, 2009 77%, 2017
Mean Humidity 66% 60% 81%, 2009 53%, 2015
Minimum Pressure 1015 hPa 17:41 1019 hPa 1025 hPa, 2010 994 hPa, 2009
Maximum Pressure 1020 hPa 05:42 1025 hPa 1028 hPa, 2010 1004 hPa, 2009
Mean Pressure 1018 hPa 1022 hPa 1026 hPa, 2010 999 hPa, 2009
Mean Wind Speed 3.5 mph (-1.4) 3.8 mph (-1.1) 5.7 mph, 2012 3.4 mph, 2010
Maximum Wind Speed 11.4 mph 14:20 11.6 mph 18.7 mph, 2013 9.2 mph, 2010
Maximum Gust 16.8 mph 13:18 16.8 mph 25.3 mph, 2013 13.4 mph, 2010
Mean Wind Direction NW
Rainfall 1.1 mm 2.9 mm (7%) 4.6 mm, 2009
Maximum Hourly Rain 1.1 mm 18:30 2.3 mm, 2012
Maximum 10-min Rain 0.4 mm 18:30 1.2 mm, 2012
Maximum Rain Rate 5.0 mm/h 18:30 20 mm/h, 2012
Minimum Dew Point -2.5 °C 03:02 -0.1 °C 5.3 °C, 2012 -4.2 °C, 2016
Maximum Dew Point 4.4 °C 22:25 6.0 °C 10.4 °C, 2010 1.7 °C, 2016
Mean Dew Point 0.8 °C 3.1 °C 6.9 °C, 2010 -1.6 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 1.5 °C 04:18 6.3 °C 9.5 °C, 2012 1.5 °C, 2017
Day Maximum (09-21) 11.1 °C 13:31 15.3 °C 20.8 °C, 2010 9.9 °C, 2009
Max 10m Temp Rise 0.7 °C 07:42 0.6 °C 0.8 °C, 2011 0.6 °C, 2010
Max 1hr Temp Rise 2.7 °C 08:19 2.3 °C 2.7 °C, 2017 1.2 °C, 2009
Max 1hr Hum Rise 8% 18:00 8% 12%, 2011 6%, 2010
Max 10m Temp Fall 0.4 °C 13:13 0.5 °C 0.8 °C, 2012 0.3 °C, 2010
Max 1hr Temp Fall 1.1 °C 18:21 1.8 °C 2.4 °C, 2016 1.1 °C, 2017
Max 1hr Hum Fall 12% 10:31 9% 30%, 2015 4%, 2009
Max 10m Wind Speed 9.2 mph 13:10 8.7 mph 14.4 mph, 2013 8.2 mph, 2011
Minimum Feels-like -1.6 °C 04:25 3.9 °C 6.7 °C, 2012 -2.6 °C, 2016
Maximum Feels-like 11.1 °C 12:19 15.4 °C 21.5 °C, 2010 10.7 °C, 2013
Mean Feels-like 6.1 °C 10.2 °C 14.4 °C, 2010 4.5 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.6 °C (+1.2) 9.2 °C (+1.4) 13.8 °C (+5.4), 2010 4.6 °C (-3.8), 2009
Humidity Range 31% 30% 51%, 2016 26%, 2009
Pressure Range 5 hPa 6 hPa 12 hPa, 2012 1 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [30%]169 hrs (138%) [50%] 11 [84%], 2011 0.1 [1%], 2009
Wet Hours 1
[Mean rain rate: 1.1 mm/h]
4.5 hrs (11%) [0.7%] 6, 2009 0, 2010
Cloud Cover am: Hazy transitioned to Mostly Cloudy
pm: Overcast
Events None
Comments -
Extra Comments
Issues rn data from caa
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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