Daily Report for 12th May 2016

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.0 °C (+4.3) 06:15 9.6 °C (+2.5) 12.6 °C (+4.9), 2017 1.0 °C (-6.7), 2010
Maximum Temperature 13.4 °C (-2.8) 16:07 19.6 °C (+4.0) 18.8 °C (+2.6), 2017 11.4 °C (-4.8), 2010
Mean Temperature 17.8 °C (+0.8) 15.3 °C (+3.3) 17.8 °C, 2016 6.9 °C, 2010
Minimum Humidity 44% 15:27 43% 63%, 2018 34%, 2009
Maximum Humidity 94% 02:36 81% 94%, 2016 74%, 2009
Mean Humidity 74% 61% 81%, 2018 52%, 2015
Minimum Pressure 1001 hPa 17:55 1011 hPa 1033 hPa, 2012 993 hPa, 2017
Maximum Pressure 1005 hPa 23:47 1016 hPa 1039 hPa, 2012 1002 hPa, 2017
Mean Pressure 1003 hPa 1013 hPa 1036 hPa, 2012 996 hPa, 2017
Mean Wind Speed 5.7 mph (+1.0) 3.6 mph (-1.1) 7.1 mph, 2015 2.2 mph, 2018
Maximum Wind Speed 13.4 mph 16:31 11.5 mph 17.8 mph, 2015 7.6 mph, 2010
Maximum Gust 18.9 mph 11:31 17.4 mph 27.5 mph, 2015 10.9 mph, 2010
Mean Wind Direction NNE
Rainfall 0.0 mm 25.1 mm (127%) 6.6 mm, 2018
Maximum Hourly Rain n/a 2.5, 2014
Maximum 10-min Rain n/a 1.9, 2014
Maximum Rain Rate n/a 54, 2014
Minimum Dew Point 10.4 °C 23:38 3.5 °C 10.4 °C, 2016 -2.2 °C, 2010
Maximum Dew Point 14.9 °C 12:06 10.2 °C 14.9 °C, 2016 2.8 °C, 2010
Mean Dew Point 12.6 °C 6.9 °C 12.6 °C, 2016 0.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 12.4 °C * 06:15 9.7 °C 12.6 °C, 2017 1.0 °C, 2010
Day Maximum (09-21) * 23.8 °C * 16:07 20.5 °C 23.8 °C, 2016 11.4 °C, 2010
Max 10m Temp Rise 0.6 °C 11:26 0.7 °C 0.8 °C, 2012 0.4 °C, 2018
Max 1hr Temp Rise 2.3 °C 12:14 2.9 °C 2.7 °C, 2010 1.1 °C, 2018
Max 1hr Hum Rise 18% 21:00 8% 18%, 2013 6%, 2009
Max 10m Temp Fall 0.8 °C 20:45 0.5 °C 1.1 °C, 2014 0.4 °C, 2009
Max 1hr Temp Fall 3.1 °C 21:10 1.9 °C 3.1 °C, 2016 1.3 °C, 2018
Max 1hr Hum Fall 13% 12:15 12% 19%, 2013 8%, 2018
Max 10m Wind Speed 10.0 mph 16:21 8.9 mph 14.9 mph, 2015 5.5 mph, 2018
Minimum Feels-like 14.1 °C 23:52 9.6 °C 14.1 °C, 2016 -1.0 °C, 2010
Maximum Feels-like 26.5 °C 16:26 21.7 °C 26.5 °C, 2016 11.4 °C, 2010
Mean Feels-like 20.4 °C 16.2 °C 20.4 °C, 2016 6.0 °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 1.4 °C (-7.1) 10.0 °C (+1.5) 10.8 °C (+2.3), 2009 1.4 °C (-7.1), 2016
Humidity Range 50% 38% 51%, 2013 27%, 2017
Pressure Range 4 hPa 5 hPa 9 hPa, 2017 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 12 [86%]96 hrs (134%) [58%] 12 [86%], 2016 0.2 [1%], 2018
Wet Hours 022 hrs (142%) [7.6%] 8, 2018 0, 2009
Cloud Cover am: Hazy transitioned to Sunny
pm: Mostly Sunny
Events None
Comments -
Extra Comments
Issues T/H data from casa; Wind data from Harpenden
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.
View monthly summary

Daily Graph of Conditions

day graph

Webcam Summary of Cloud Conditions

daycamsum