Daily Report for 29th December 2009

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.5 °C (-1.3) 01:37 1.6 °C (-1.6) 9.7 °C (+6.9), 2015 -2.3 °C (-5.1), 2017
Maximum Temperature 3.8 °C (-3.4) 12:20 6.0 °C (-1.9) 12.4 °C (+5.2), 2015 3.8 °C (-3.4), 2009
Mean Temperature 3.0 °C (-2.3) 3.9 °C (-1.7) 10.9 °C, 2015 1.1 °C, 2014
Minimum Humidity 94% 09:13 83% 98%, 2010 69%, 2011
Maximum Humidity 98% 12:00 97% 98%, 2009 83%, 2011
Mean Humidity 97% 91% 98%, 2010 73%, 2011
Minimum Pressure 991 hPa 22:07 1002 hPa 1037 hPa, 2014 990 hPa, 2017
Maximum Pressure 1001 hPa 00:08 1010 hPa 1042 hPa, 2014 1001 hPa, 2009
Mean Pressure 996 hPa 1006 hPa 1040 hPa, 2014 996 hPa, 2009
Mean Wind Speed 7.1 mph (+2.0) 4.6 mph (-0.5) 10.8 mph, 2012 0.3 mph, 2016
Maximum Wind Speed 16.3 mph 11.0 mph 18.4 mph, 2017 4.4 mph, 2016
Maximum Gust 25.6 mph 13:26 16.7 mph 28.8 mph, 2012 6.3 mph, 2016
Mean Wind Direction E
Rainfall 11.5 mm 70.1 mm (134%) 11.5 mm, 2009
Maximum Hourly Rain 3.2 mm 13:23 4.4 mm, 2017
Maximum 10-min Rain 1.1 mm 13:09 1.9 mm, 2011
Maximum Rain Rate 8 mm/h 16:58 72 mm/h, 2015
Minimum Dew Point 1.2 °C 01:37 0.2 °C 6.6 °C, 2010 -3.3 °C, 2017
Maximum Dew Point 3.5 °C 12:57 5.1 °C 10.1 °C, 2018 1.1 °C, 2014
Mean Dew Point 2.6 °C 2.6 °C 8.0 °C, 2018 -1.1 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 1.5 °C 2.3 °C 11.2 °C, 2012 -2.3 °C, 2017
Day Maximum (09-21) 3.8 °C 5.8 °C 12.3 °C, 2018 3.8 °C, 2009
Max 10m Temp Rise 0.2 °C 04:04 0.4 °C 0.6 °C, 2016 0.1 °C, 2010
Max 1hr Temp Rise 0.8 °C 04:49 1.0 °C 2.3 °C, 2017 0.4 °C, 2010
Max 1hr Hum Rise 2% 10:38 4% 8%, 2015 0%, 2010
Max 10m Temp Fall 0.1 °C 01:24 0.4 °C 0.5 °C, 2012 0.1 °C, 2009
Max 1hr Temp Fall 0.3 °C 16:25 0.9 °C 2.3 °C, 2016 0.3 °C, 2009
Max 1hr Hum Fall 3% 08:22 5% 10%, 2012 0%, 2010
Max 10m Wind Speed 10.7 mph 10:36 7.9 mph 14.6 mph, 2012 3.4 mph, 2016
Minimum Feels-like -2.9 °C 00:48 -1.6 °C 6.5 °C, 2015 -5.1 °C, 2014
Maximum Feels-like 3.1 °C 22:55 6.2 °C 13.6 °C, 2018 3.1 °C, 2009
Mean Feels-like -0.2 °C 2.5 °C 11.1 °C, 2015 -1.0 °C, 2014
Air-frost Hrs 0 hrs 3 hrs 7 hrs, 2014 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 2.3 °C (-2.1) 4.3 °C (-0.4) 10.2 °C (+5.8), 2017 1.7 °C (-2.7), 2010
Humidity Range 4% 14% 24%, 2017 0%, 2010
Pressure Range 10 hPa 8 hPa 17 hPa, 2017 5 hPa, 2019
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]75 hrs (166%) [36%] 7 [100%], 2013 0 [0%], 2009
Wet Hours 11
[Mean rain rate: 1.0 mm/h]
80 hrs (138%) [11%] 11, 2009 0, 2013
Cloud Cover not available
Events None
Comments 10-22 Moderate/Heavy Rain (10-12 Light,17-21 SLight)
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
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