Daily Report for 17th March 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.3 °C (+1.6) 06:15 3.6 °C (+0.5) 7.2 °C (+3.5), 2012 -1.7 °C (-5.4), 2018
Maximum Temperature 15.4 °C (+5.0) 13:42 12.2 °C (+2.4) 15.4 °C (+5.0), 2009 7.1 °C (-3.3), 2018
Mean Temperature 10.3 °C (+3.3) 7.9 °C (+1.5) 10.6 °C, 2014 0.5 °C, 2018
Minimum Humidity 51% 13:37 54% 78%, 2013 43%, 2016
Maximum Humidity 87% 23:07 93% 98%, 2011 78%, 2017
Mean Humidity 69% 74% 89%, 2011 65%, 2010
Minimum Pressure 1032 hPa 02:19 1008 hPa 1032 hPa, 2009 987 hPa, 2013
Maximum Pressure 1037 hPa 20:35 1017 hPa 1037 hPa, 2009 993 hPa, 2013
Mean Pressure 1034 hPa 1012 hPa 1034 hPa, 2009 990 hPa, 2013
Mean Wind Speed n/a (-5.2) 0.0 mph (-5.2) 10.9, 2018 2.3, 2011
Maximum Wind Speed n/a 0.0 mph 21.2, 2018 7.8, 2011
Maximum Gust n/a 0.0 mph 32.3, 2018 10.7, 2011
Mean Wind Direction n/a
Rainfall 0.0 mm 24.2 mm (100%) 4.8 mm, 2012
Maximum Hourly Rain n/a 2.6, 2012
Maximum 10-min Rain n/a 1.5, 2012
Maximum Rain Rate n/a 15, 2012
Minimum Dew Point 2.9 °C 05:37 0.5 °C 4.7 °C, 2012 -4.1 °C, 2018
Maximum Dew Point 6.8 °C 12:47 6.0 °C 9.0 °C, 2020 5.0 °C, 2013
Mean Dew Point 4.7 °C 3.0 °C 6.6 °C, 2012 -1.5 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 5.3 °C 4.0 °C 7.9 °C, 2012 -0.3 °C, 2018
Day Maximum (09-21) 15.4 °C 12.2 °C 15.4 °C, 2009 0.1 °C, 2018
Max 10m Temp Rise 1.2 °C 11:43 0.2 °C 1.2 °C, 2009 0.1 °C, 2018
Max 1hr Temp Rise 3.1 °C 12:34 0.6 °C 3.1 °C, 2009 0.4 °C, 2018
Max 1hr Hum Rise 12% 17:27 2% 28%, 2019 3%, 2020
Max 10m Temp Fall 1.8 °C 17:27 0.2 °C 2.3 °C, 2019 0.3 °C, 2015
Max 1hr Temp Fall 3.3 °C 17:27 0.5 °C 4.2 °C, 2019 0.9 °C, 2020
Max 1hr Hum Fall 11% 11:48 2% 22%, 2016 4%, 2012
Max 10m Wind Speed n/a 0.0 mph 16.7, 2018 5.2, 2011
Minimum Feels-like n/a 0.0 °C 5.1, 2012 -9.2, 2018
Maximum Feels-like n/a 0.0 °C 14.7, 2020 4, 2018
Mean Feels-like n/a 0.0 °C 10.1, 2014 -5.5, 2018
Air-frost Hrs 0 hrs 0.1 hrs 15 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.1 °C (+3.4) 8.5 °C (+1.9) 10.1 °C (+3.4), 2009 3.6 °C (-3.1), 2012
Humidity Range 36% 39% 49%, 2016 13%, 2012
Pressure Range 5 hPa 9 hPa 18 hPa, 2019 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9.2 [86%]83 hrs (150%) [47%] 9.2 [86%], 2009 0 [0%], 2012
Wet Hours 0 hrs (0%) [0%] 12, 2018 , 2009
Cloud Cover not available
Events None
Comments -
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.
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Daily Graph of Conditions

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