Daily Report for 4th May 2012

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.7 °C (+0.1) 07:06 8.4 °C (+1.9) 11.8 °C (+5.2), 2015 2.8 °C (-3.8), 2010
Maximum Temperature 8.9 °C (-6.3) 16:53 12.2 °C (-2.9) 18.5 °C (+3.3), 2015 8.9 °C (-6.3), 2012
Mean Temperature 7.8 °C (-3.1) 10.0 °C (-0.5) 14.4 °C, 2015 7.1 °C, 2010
Minimum Humidity 80% 20:42 73% 80%, 2012 35%, 2013
Maximum Humidity 96% 07:59 95% 96%, 2012 73%, 2013
Mean Humidity 89% 88% 89%, 2012 55%, 2011
Minimum Pressure 1007 hPa 18:57 1011 hPa 1025 hPa, 2010 992 hPa, 2015
Maximum Pressure 1009 hPa 00:55 1017 hPa 1028 hPa, 2009 1005 hPa, 2015
Mean Pressure 1008 hPa 1014 hPa 1026 hPa, 2010 1002 hPa, 2015
Mean Wind Speed 3.3 mph (-1.4) 3.9 mph (-0.8) 7.1 mph, 2013 3.2 mph, 2014
Maximum Wind Speed 8.7 mph 10.8 mph 16.8 mph, 2013 8.7 mph, 2012
Maximum Gust 14.7 mph 18:26 15.4 mph 24.4 mph, 2015 10.9 mph, 2014
Mean Wind Direction NNE
Rainfall 0.3 mm 17.9 mm (272%) 4.5 mm, 2015
Maximum Hourly Rain n/a 09:11 2.6, 2015
Maximum 10-min Rain n/a 09:11 0.8, 2015
Maximum Rain Rate n/a 09:12 5.4, 2015
Minimum Dew Point 5.1 °C 20:42 6.5 °C 5.1 °C, 2012 -2.2 °C, 2009
Maximum Dew Point 7.5 °C 10:44 9.9 °C 11.1 °C, 2015 3.4 °C, 2010
Mean Dew Point 6.0 °C 8.1 °C 7.6 °C, 2015 1.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.7 °C 07:05 8.7 °C 11.8 °C, 2015 2.8 °C, 2010
Day Maximum (09-21) 8.9 °C 16:52 12.2 °C 18.5 °C, 2015 8.9 °C, 2012
Max 10m Temp Rise 0.6 °C 10:41 0.4 °C 0.9 °C, 2011 0.4 °C, 2010
Max 1hr Temp Rise 1.3 °C 10:50 1.1 °C 4.0 °C, 2011 1.3 °C, 2012
Max 1hr Hum Rise 3% 23:06 8% 14%, 2015 3%, 2012
Max 10m Temp Fall 0.2 °C 14:54 0.3 °C 0.5 °C, 2013 0.2 °C, 2012
Max 1hr Temp Fall 0.5 °C 23:13 1.4 °C 1.7 °C, 2010 0.5 °C, 2012
Max 1hr Hum Fall 8% 11:20 8% 26%, 2013 8%, 2010
Max 10m Wind Speed 6.1 mph 17:27 7.2 mph 13.9 mph, 2013 6.1 mph, 2012
Minimum Feels-like 5.0 °C 07:38 7.2 °C 12.0 °C, 2015 0.2 °C, 2010
Maximum Feels-like 8.9 °C 16:39 13.1 °C 18.5 °C, 2015 8.9 °C, 2012
Mean Feels-like 6.9 °C 9.9 °C 14.9 °C, 2015 5.7 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 2.2 °C (-6.4) 3.8 °C (-4.8) 13.2 °C (+4.6), 2014 2.2 °C (-6.4), 2012
Humidity Range 16% 22% 51%, 2015 16%, 2012
Pressure Range 2 hPa 6 hPa 13 hPa, 2015 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]2 hrs (9%) [3.7%] 13.5 [99%], 2011 0 [0%], 2012
Wet Hours 0.3
[Mean rain rate: 1.0 mm/h]
9.6 hrs (186%) [10%] 4, 2015 0, 2010
Cloud Cover Overcast
Events None
Comments occasional am Drizzle
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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