Daily Report for 23rd January 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -2.2 °C (-4.5) 23:11 2.6 °C (+0.2) 8.2 °C (+5.9), 2018 -4.1 °C (-6.4), 2015
Maximum Temperature 1.8 °C (-5.2) 15:15 7.0 °C (-0.0) 12.7 °C (+5.7), 2018 1.8 °C (-5.2), 2019
Mean Temperature 0.1 °C (-4.8) 5.0 °C (+0.1) 10.6 °C, 2018 0.1 °C, 2019
Minimum Humidity 86% 15:07 74% 88%, 2010 49%, 2009
Maximum Humidity 94% 21:56 89% 98%, 2010 83%, 2012
Mean Humidity 90% 83% 95%, 2010 71%, 2009
Minimum Pressure 997 hPa 03:03 1021 hPa 1033 hPa, 2011 967 hPa, 2009
Maximum Pressure 1010 hPa 23:58 1028 hPa 1035 hPa, 2011 985 hPa, 2009
Mean Pressure 1003 hPa 1024 hPa 1034 hPa, 2011 976 hPa, 2009
Mean Wind Speed 2.7 mph (-2.5) 4.2 mph (-1.0) 8.1 mph, 2018 0.2 mph, 2017
Maximum Wind Speed 9.3 mph 10:38 11.9 mph 16.8 mph, 2018 3.7 mph, 2017
Maximum Gust 15.0 mph 02:46 18.4 mph 30.0 mph, 2018 4.2 mph, 2017
Mean Wind Direction N
Rainfall 0.0 mm 11.5 mm (28%) 11.0 mm, 2009
Maximum Hourly Rain n/a 5, 2009
Maximum 10-min Rain n/a 0.9, 2014
Maximum Rain Rate n/a 6, 2014
Minimum Dew Point -3.2 °C 23:08 0.1 °C 5.0 °C, 2018 -5.6 °C, 2015
Maximum Dew Point -0.1 °C 15:13 4.2 °C 11.1 °C, 2018 -0.5 °C, 2013
Mean Dew Point -1.2 °C 2.3 °C 8.5 °C, 2018 -1.3 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 0.2 °C * 03:56 3.4 °C 7.7 °C, 2018 -4.1 °C, 2015
Day Maximum (09-21) 1.8 °C 15:18 6.8 °C 12.7 °C, 2018 1.8 °C, 2019
Max 10m Temp Rise 0.2 °C 20:38 0.3 °C 0.5 °C, 2015 0.1 °C, 2010
Max 1hr Temp Rise 0.4 °C 15:10 1.1 °C 2.0 °C, 2015 0.1 °C, 2010
Max 1hr Hum Rise 3% 17:34 4% 7%, 2018 2%, 2010
Max 10m Temp Fall 0.4 °C 16:54 0.4 °C 0.4 °C, 2016 0.1 °C, 2011
Max 1hr Temp Fall 1.7 °C 17:34 1.2 °C 1.7 °C, 2019 0.4 °C, 2011
Max 1hr Hum Fall 2% 01:17 6% 21%, 2014 2%, 2017
Max 10m Wind Speed 7.4 mph 11:41 8.7 mph 12.7 mph, 2018 2.2 mph, 2017
Minimum Feels-like -5.3 °C 02:46 -0.7 °C 4.9 °C, 2018 -6.2 °C, 2015
Maximum Feels-like 1.7 °C 14:49 6.7 °C 14.3 °C, 2018 1.7 °C, 2019
Mean Feels-like -2.0 °C 3.1 °C 10.2 °C, 2018 -2.3 °C, 2013
Air-frost Hrs 7 hrs 1 hrs 11 hrs, 2015 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.0 °C (-0.7) 4.4 °C (-0.2) 11.4 °C (+6.7), 2015 1.4 °C (-3.3), 2013
Humidity Range 8% 15% 44%, 2009 5%, 2017
Pressure Range 13 hPa 8 hPa 18 hPa, 2009 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.2 [15%]45 hrs (132%) [26%] 6 [77%], 2015 0 [0%], 2011
Wet Hours 013 hrs (27%) [2.4%] 2, 2015 , 2009
Cloud Cover Partly Cloudy with periods of Mostly Cloudy
Events Lying Snow (at 09z): ~1 cm
Comments snow patches persisted
Extra Comments
Issues snow melt reassigned
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.
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