Daily cloud stats from LUMO ceilometer network


The below summary tables are derived from LUMO ceimometer observations. Currently, the five CL31 sensors of the network are used. Site locations have changed over the years and include KSS45W, RGS, MR, NK, and IMU. The following metrics are used to determine cloud condition for each day since Jan 2010. At least three sensors have to fulfill the respective criteria (or two and no data available for the other sites).

classcritera
clear cloud cover in any height < 1%
clearABL cloud cover below 3km < 1%
little cloud cover in any height < 5%
littleABL cloud cover below 3km < 5%
clearDay cloud cover in any height < 1% during daytime
clearDayABL cloud cover below 3km < 1% during daytime
littleDay cloud cover in any height < 5% during daytime
littleDayABL cloud cover below 3km < 5% during daytime

Summary by year

clearclearABLlittlelittleABLclearDayclearDayABLlittleDaylittleDayABL
2010 2 8 4 9 1 3 2 2
2011 8 7 0 11 4 4 1 4
2012 12 8 5 5 4 4 2 2
2013 6 4 6 5 3 2 0 1
2014 5 7 5 6 2 0 0 4
2015 4 9 2 4 6 4 2 2
2016 7 12 4 6 0 3 3 2
2017 6 5 3 6 0 0 2 2
total 50 60 29 52 20 20 12 19

Clear days & days with little cloud in London


The below table is constructed with a hierarchy from left to right, i.e. a day fulfilling criteria of a column is only listed if it does not yet appear in a column towards the left.

clearclearABLlittlelittleABLclearDayclearDayABLlittleDaylittleDayABL
2010-06-03 2010-04-23 2010-01-04 2010-04-21 2010-10-11 2010-03-05 2010-03-02 2010-11-13
2010-06-04 2010-04-24 2010-04-17 2010-04-22 2011-03-07 2010-04-06 2010-04-13 2010-11-24
2011-01-09 2010-04-28 2010-06-27 2010-04-27 2011-04-08 2010-04-18 2011-10-14 2011-04-06
2011-03-19 2010-07-09 2010-10-20 2010-06-23 2011-10-22 2011-04-30 2012-01-27 2011-04-27
2011-04-09 2010-07-19 2012-02-02 2010-06-28 2011-11-13 2011-10-03 2012-09-03 2011-12-02
2011-09-28 2010-07-20 2012-03-26 2010-09-05 2012-01-14 2011-10-24 2015-09-29 2011-12-06
2011-09-29 2010-10-25 2012-03-30 2010-09-22 2012-03-01 2011-12-12 2015-12-09 2012-11-23
2011-09-30 2010-12-26 2012-04-01 2010-11-15 2012-03-12 2012-01-17 2016-02-16 2012-12-06
2011-10-01 2011-04-10 2012-09-15 2010-11-26 2012-12-11 2012-09-09 2016-08-12 2013-12-20
2011-10-15 2011-04-22 2013-02-19 2011-02-08 2013-11-10 2012-09-13 2016-11-28 2014-01-14
2012-01-16 2011-04-24 2013-05-03 2011-03-08 2013-11-15 2012-12-02 2017-01-24 2014-03-05
2012-03-24 2011-04-25 2013-07-06 2011-03-23 2013-12-29 2013-08-01 2017-04-06 2014-07-04
2012-03-27 2011-05-04 2013-07-08 2011-03-25 2014-10-28 2013-11-13 2014-11-09
2012-03-28 2011-06-27 2013-09-02 2011-05-01 2014-12-06 2015-01-23 2015-03-13
2012-05-26 2011-10-02 2013-09-04 2011-05-02 2015-01-02 2015-03-12 2015-04-17
2012-05-27 2012-01-13 2014-04-15 2011-05-25 2015-01-24 2015-07-03 2016-04-10
2012-07-23 2012-03-22 2014-05-18 2011-06-01 2015-02-02 2015-11-23 2016-08-25
2012-07-24 2012-03-29 2014-09-22 2011-06-03 2015-02-17 2016-01-13 2017-07-17
2012-07-26 2012-05-25 2014-10-05 2011-07-31 2015-02-18 2016-12-14 2017-08-25
2012-09-06 2012-08-11 2014-10-31 2011-12-05 2015-10-02 2016-12-26
2012-09-07 2012-08-18 2015-09-10 2012-02-11
2012-09-08 2012-11-11 2015-09-30 2012-03-23
2013-05-02 2012-11-18 2016-04-20 2012-07-22
2013-06-04 2013-04-07 2016-08-15 2012-08-19
2013-07-07 2013-04-20 2016-08-17 2012-09-05
2013-07-09 2013-08-23 2016-10-03 2013-03-05
2013-07-18 2013-09-01 2017-04-07 2013-05-26
2013-07-19 2014-03-13 2017-06-14 2013-07-15
2014-03-09 2014-03-14 2017-06-19 2013-08-21
2014-03-16 2014-03-19 2013-09-27
2014-04-16 2014-03-29 2014-03-12
2014-11-24 2014-05-05 2014-03-30
2014-12-29 2014-07-03 2014-04-02
2015-04-14 2014-11-29 2014-05-04
2015-04-15 2015-03-07 2014-09-08
2015-04-21 2015-03-10 2014-12-13
2015-06-11 2015-04-20 2015-04-16
2016-05-04 2015-06-04 2015-08-22
2016-08-23 2015-06-29 2015-10-25
2016-09-11 2015-06-30 2015-12-28
2016-11-25 2015-07-01 2016-03-11
2016-11-29 2015-07-10 2016-03-17
2016-11-30 2015-08-02 2016-04-21
2016-12-04 2016-01-19 2016-05-08
2017-01-20 2016-05-05 2016-08-24
2017-01-22 2016-05-06 2016-12-05
2017-03-25 2016-07-18 2017-01-02
2017-04-08 2016-07-19 2017-04-09
2017-05-26 2016-08-30 2017-04-11
2017-08-28 2016-09-13 2017-06-21
2016-09-14 2017-07-05
2016-11-02 2017-07-18
2016-12-27
2016-12-28
2016-12-29
2017-01-05
2017-01-18
2017-01-21
2017-05-22
2017-06-20

Generated on: Thu Sep 14 10:38:13 2017 - R2HTML