Daily Report for 29th February 2016

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.1 °C (-1.5) 06:51 3.1 °C (+0.8) 9.5 °C (+6.9), 2012 -4.8 °C (-7.4), 2018
Maximum Temperature 7.9 °C (-0.9) 14:34 8.6 °C (+0.9) 12.6 °C (+3.8), 2012 0.0 °C (-8.8), 2018
Mean Temperature 5.0 °C (-1.2) 6.0 °C (+0.9) 10.9 °C, 2012 -2.8 °C, 2018
Minimum Humidity 49% 15:24 57% 78%, 2012 47%, 2015
Maximum Humidity 84% 07:33 86% 98%, 2014 84%, 2016
Mean Humidity 64% 74% 84%, 2014 64%, 2016
Minimum Pressure 1024 hPa 23:55 1005 hPa 1035 hPa, 2011 995 hPa, 2018
Maximum Pressure 1028 hPa 09:30 1014 hPa 1039 hPa, 2011 999 hPa, 2017
Mean Pressure 1026 hPa 1009 hPa 1037 hPa, 2011 997 hPa, 2017
Mean Wind Speed 1.8 mph (-3.3) 6.0 mph (+0.9) 12.5 mph, 2018 1.8 mph, 2016
Maximum Wind Speed 12.6 mph 23:42 15.2 mph 22.0 mph, 2018 7.6 mph, 2014
Maximum Gust 19.9 mph 23:36 22.8 mph 33.4 mph, 2018 10.2 mph, 2014
Mean Wind Direction SE
Rainfall trace 38.6 mm (97%) 4, 2017
Maximum Hourly Rain n/a 3.2, 2015
Maximum 10-min Rain n/a 2.6, 2015
Maximum Rain Rate n/a 30, 2015
Minimum Dew Point -2.7 °C 21:00 -1.5 °C 7.2 °C, 2012 -8.4 °C, 2018
Maximum Dew Point 0.5 °C 09:15 4.4 °C 10.1 °C, 2015 -3.6 °C, 2018
Mean Dew Point -1.6 °C 1.5 °C 8.2 °C, 2012 -5.8 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 1.1 °C 06:51 3.9 °C 9.5 °C, 2012 -5.1 °C, 2018
Day Maximum (09-21) 7.9 °C 14:34 8.5 °C 12.6 °C, 2012 0.0 °C, 2018
Max 10m Temp Rise 0.5 °C 08:20 0.4 °C 0.6 °C, 2011 0.2 °C, 2012
Max 1hr Temp Rise 2.0 °C 08:32 1.3 °C 2.1 °C, 2010 0.4 °C, 2011
Max 1hr Hum Rise 5% 01:08 7% 21%, 2015 2%, 2012
Max 10m Temp Fall 0.2 °C 00:24 0.4 °C 0.8 °C, 2015 0.2 °C, 2012
Max 1hr Temp Fall 0.7 °C 01:14 1.2 °C 2.4 °C, 2015 0.6 °C, 2012
Max 1hr Hum Fall 10% 10:24 10% 24%, 2015 4%, 2012
Max 10m Wind Speed 10.1 mph 23:44 11.8 mph 18.1 mph, 2015 5.7 mph, 2014
Minimum Feels-like -1.1 °C 03:29 -0.2 °C 7.8 °C, 2012 -14.2 °C, 2018
Maximum Feels-like 7.8 °C 14:12 7.6 °C 13.3 °C, 2012 -5.7 °C, 2018
Mean Feels-like 4.0 °C 3.9 °C 11.0 °C, 2012 -10.1 °C, 2018
Air-frost Hrs 0 hrs 0.9 hrs 24 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.8 °C (+0.6) 5.5 °C (+0.1) 9.5 °C (+3.3), 2010 1.9 °C (-4.3), 2011
Humidity Range 35% 29% 49%, 2015 13%, 2011
Pressure Range 4 hPa 10 hPa 15 hPa, 2018 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5 [51%]80 hrs (102%) [31%] 7 [72%], 2010 0 [0%], 2011
Wet Hours 0.552 hrs (99%) [7.4%] 5, 2018 , 2009
Cloud Cover am: Mostly Sunny
pm: Hazy transitioned to Overcast
Events None
Comments late eve Slight Rain
Extra Comments
Issues 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