Daily Report for 27th February 2016

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.4 °C (-0.2) 06:17 3.2 °C (+1.0) 6.5 °C (+3.9), 2009 -4.3 °C (-6.9), 2018
Maximum Temperature 5.6 °C (-3.1) 13:12 8.6 °C (+1.1) 16.9 °C (+8.2), 2019 -0.1 °C (-8.8), 2018
Mean Temperature 3.9 °C (-1.6) 6.1 °C (+1.0) 10.2 °C, 2009 -2.4 °C, 2018
Minimum Humidity 47% 13:51 58% 76%, 2010 47%, 2016
Maximum Humidity 74% 07:06 86% 98%, 2013 74%, 2016
Mean Humidity 61% 75% 89%, 2010 61%, 2016
Minimum Pressure 1007 hPa 02:56 1004 hPa 1032 hPa, 2013 982 hPa, 2017
Maximum Pressure 1015 hPa 23:10 1014 hPa 1035 hPa, 2013 999 hPa, 2017
Mean Pressure 1010 hPa 1008 hPa 1034 hPa, 2013 989 hPa, 2017
Mean Wind Speed 5.1 mph (+0.0) 6.2 mph (+1.1) 7.6 mph, 2017 1.8 mph, 2019
Maximum Wind Speed 13.7 mph 14:14 15.4 mph 18.9 mph, 2017 8.4 mph, 2019
Maximum Gust 22.0 mph 14:14 23.0 mph 27.3 mph, 2017 11.5 mph, 2019
Mean Wind Direction ENE
Rainfall 0.0 mm 38.5 mm (103%) 9.1 mm, 2017
Maximum Hourly Rain n/a 5.6, 2017
Maximum 10-min Rain n/a 2, 2017
Maximum Rain Rate n/a 30, 2010
Minimum Dew Point -5.1 °C 15:24 -1.3 °C 3.7 °C, 2009 -8.3 °C, 2018
Maximum Dew Point -1.0 °C 00:00 4.7 °C 7.9 °C, 2010 -3.7 °C, 2018
Mean Dew Point -3.1 °C 1.8 °C 5.9 °C, 2012 -5.9 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 2.4 °C 06:17 4.0 °C 8.2 °C, 2017 -4.1 °C, 2018
Day Maximum (09-21) 5.6 °C 13:12 8.5 °C 16.9 °C, 2019 -0.1 °C, 2018
Max 10m Temp Rise 0.4 °C 09:44 0.4 °C 1.0 °C, 2019 0.3 °C, 2012
Max 1hr Temp Rise 1.0 °C 07:19 1.3 °C 4.3 °C, 2019 0.8 °C, 2017
Max 1hr Hum Rise 4% 21:03 7% 19%, 2018 4%, 2016
Max 10m Temp Fall 0.2 °C 03:34 0.4 °C 1.1 °C, 2018 0.2 °C, 2012
Max 1hr Temp Fall 0.8 °C 19:36 1.3 °C 2.5 °C, 2019 0.5 °C, 2012
Max 1hr Hum Fall 8% 08:22 10% 15%, 2014 4%, 2012
Max 10m Wind Speed 10.9 mph 15:26 11.9 mph 14.4 mph, 2017 6.4 mph, 2019
Minimum Feels-like -1.4 °C 23:30 -0.1 °C 3.2 °C, 2012 -10.3 °C, 2018
Maximum Feels-like 4.1 °C 16:46 7.7 °C 17.1 °C, 2019 -1.1 °C, 2018
Mean Feels-like 0.9 °C 4.1 °C 9.8 °C, 2019 -6.4 °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 3.2 °C (-2.9) 5.4 °C (+0.1) 14.7 °C (+8.6), 2019 3.2 °C (-2.9), 2016
Humidity Range 27% 28% 48%, 2014 11%, 2017
Pressure Range 8 hPa 10 hPa 17 hPa, 2017 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.3 [3%]74 hrs (101%) [31%] 9.6 [100%], 2019 0 [0%], 2012
Wet Hours 051 hrs (106%) [7.9%] 5, 2017 , 2009
Cloud Cover Overcast with periods of Mostly Cloudy
Events None
Comments -
Extra Comments
Issues Wind data from Harpenden
Observer Absent? Yes - observations may be unreliable
Notes
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
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 (entered with a delay of 1-10 days); 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

daycamsumLarge resolution version