Daily Report for 4th May 2009

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.8 °C (-1.7) 05:39 7.2 °C (+0.7) 11.8 °C (+5.3), 2015 2.8 °C (-3.7), 2010
Maximum Temperature 12.8 °C (-2.3) 15:13 17.1 °C (+2.1) 20.2 °C (+5.1), 2018 8.9 °C (-6.2), 2012
Mean Temperature 9.3 °C (-2.0) 12.1 °C (+1.4) 15.3 °C, 2018 7.0 °C, 2019
Minimum Humidity 51% 00:01 40% 80%, 2012 33%, 2016
Maximum Humidity 80% 23:55 83% 96%, 2012 73%, 2013
Mean Humidity 64% 62% 89%, 2012 50%, 2016
Minimum Pressure 1022 hPa 22:34 1023 hPa 1025 hPa, 2010 992 hPa, 2015
Maximum Pressure 1028 hPa 05:16 1028 hPa 1028 hPa, 2009 1005 hPa, 2015
Mean Pressure 1025 hPa 1025 hPa 1026 hPa, 2010 1002 hPa, 2015
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 7.13, 2013 2.5, 2018
Maximum Wind Speed n/a 0.0 mph 18.2, 2019 8.7, 2012
Maximum Gust n/a 0.0 mph 32.3, 2019 10.9, 2014
Mean Wind Direction n/a
Rainfall trace 0.1 mm (2%) 4.5, 2015
Maximum Hourly Rain n/a 2.6, 2015
Maximum 10-min Rain n/a 0.9, 2019
Maximum Rain Rate n/a 13, 2019
Minimum Dew Point -2.2 °C 00:54 0.5 °C 5.5 °C, 2018 -3.9 °C, 2016
Maximum Dew Point 7.6 °C 23:55 8.1 °C 11.2 °C, 2018 3.4 °C, 2010
Mean Dew Point 2.6 °C 4.6 °C 7.9 °C, 2018 1.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.8 °C 7.7 °C 11.8 °C, 2015 2.8 °C, 2010
Day Maximum (09-21) 12.8 °C 17.1 °C 20.2 °C, 2018 8.9 °C, 2012
Max 10m Temp Rise 0.7 °C 08:50 0.9 °C 1.0 °C, 2016 0.4 °C, 2010
Max 1hr Temp Rise 2.2 °C 10:25 2.7 °C 4.9 °C, 2016 1.0 °C, 2017
Max 1hr Hum Rise 12% 13:02 9% 24%, 2019 3%, 2012
Max 10m Temp Fall 0.3 °C 12:14 0.7 °C 2.4 °C, 2019 0.2 °C, 2012
Max 1hr Temp Fall 1.1 °C 01:01 1.5 °C 3.7 °C, 2019 0.5 °C, 2012
Max 1hr Hum Fall 12% 14:03 14% 26%, 2013 8%, 2010
Max 10m Wind Speed n/a 0.0 mph 13.9, 2013 6.1, 2012
Minimum Feels-like n/a 0.0 °C 12, 2015 -0.3, 2019
Maximum Feels-like n/a 0.0 °C 21.6, 2018 8.9, 2012
Mean Feels-like n/a 0.0 °C 15.8, 2018 4.6, 2019
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.0 °C (-0.6) 10.0 °C (+1.4) 14.4 °C (+5.8), 2016 2.2 °C (-6.4), 2012
Humidity Range 29% 43% 51%, 2015 16%, 2012
Pressure Range 6 hPa 4 hPa 13 hPa, 2015 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.5 [11%]29 hrs (125%) [54%] 13.5 [100%], 2011 0 [0%], 2012
Wet Hours 11 hrs (19%) [1%] 4, 2015 0, 2010
Cloud Cover not available
Events None
Comments Very Heavy SLight 1130-1230 Rain, & occasional. Othr Very Heavy SLight Showers
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 0.0 °C
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


Webcam summary not available for this day

Wind rose