Detailed Pressure Data

Current
Measure Value
Pressure 1021 hPa
Pressure Trend +0 hPa /hr
24hr Mean Pressure 1019 hPa
Recent Averages and Extremes
Measure Today Yesterday
Minimum 1019 hPa
05:01
1017 hPa
16:22
Maximum 1021 hPa
22:20
1021 hPa
00:02
Mean 1020 hPa
1018 hPa
Last 6hrs  LondonPressure31-day chart of mean LondonPressure 31-day chart of min LondonPressure 31-day chart of max LondonPressure
Averages, Extremes and Records
Current Station Lifetime (09-20)
Measure 7-day Month 31-day Year 365-day Overall Sep 20th Sep
Lowest
Min
1017 hPa
19th
1015 hPa
3rd
998 hPa
25th
982 hPa
29th Feb
971 hPa
13th Dec
966 hPa
8th Nov 2010
985 hPa
Day 24, 2012
1000 hPa
2018
Highest
Max
1031 hPa
17th
1031 hPa
17th
1031 hPa
17th
1050 hPa
19th Jan
1050 hPa
19th Jan
1050 hPa
19th Jan 2020
1039 hPa
Day 25, 2018
1031 hPa
2019
Highest
Min
1027 hPa
17th
1027 hPa
17th
1027 hPa
17th
1045 hPa
20th Jan
1045 hPa
20th Jan
1045 hPa
20th Jan 2020
1035 hPa
Day 28, 2015
1021 hPa
2015
Lowest
Max
1021 hPa
Today
1020 hPa
3rd
1004 hPa
28th
991 hPa
1st Mar
985 hPa
3rd Nov
981 hPa
30th Jan 2015
989 hPa
Day 25, 2012
1014 hPa
2018
Lowest
Mean
1018 hPa
19th
1017 hPa
3rd
1002 hPa
28th
987 hPa
29th Feb
980 hPa
21st Dec
976 hPa
23rd Jan 2009
988 hPa
Day 25, 2012
1010 hPa
2018
Highest
Mean
1029 hPa
17th
1029 hPa
17th
1029 hPa
17th
1048 hPa
20th Jan
1048 hPa
20th Jan
1048 hPa
20th Jan 2020
1037 hPa
Day 25, 2018
1026 hPa
2019
Averages                
Mean 1022 hPa 1022 hPa 1018 hPa 1017 hPa 1015 hPa 1015 hPa 1017 hPa 1019 hPa
Mean
Minimum
1020 hPa 1020 hPa 1016 hPa 1014 hPa 1011 hPa 1012 hPa 1015 hPa 1015 hPa
Mean
Maximum
1025 hPa 1024 hPa 1021 hPa 1021 hPa 1018 hPa 1018 hPa 1020 hPa 1022 hPa

Past Year Monthly Averages and Extremes (September 2019 - August 2020)
Extremes Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Lowest
Min
993 hPa
29th
997 hPa
1st
977 hPa
2nd
971 hPa
13th
990 hPa
28th
982 hPa
29th
985 hPa
2nd
993 hPa
30th
997 hPa
1st
996 hPa
5th
1005 hPa
27th
998 hPa
25th
Highest
Max
1037 hPa
13th
1027 hPa
29th
1024 hPa
30th
1038 hPa
28th
1050 hPa
19th
1039 hPa
5th
1041 hPa
29th
1032 hPa
7th
1038 hPa
26th
1027 hPa
22nd
1030 hPa
12th
1024 hPa
31st
Highest
Min
1030 hPa
19th
1025 hPa
28th
1021 hPa
30th
1036 hPa
28th
1045 hPa
20th
1035 hPa
5th
1035 hPa
29th
1028 hPa
7th
1035 hPa
26th
1024 hPa
22nd
1027 hPa
12th
1022 hPa
31st
Lowest
Max
1005 hPa
25th
1003 hPa
18th
985 hPa
3rd
985 hPa
13th
1000 hPa
14th
994 hPa
29th
991 hPa
1st
998 hPa
30th
1006 hPa
1st
1001 hPa
5th
1009 hPa
1st
1004 hPa
28th
Lowest
Mean
998 hPa
29th
1000 hPa
18th
981 hPa
2nd
980 hPa
13th
997 hPa
28th
987 hPa
29th
990 hPa
1st
996 hPa
30th
1000 hPa
1st
998 hPa
5th
1007 hPa
1st
1002 hPa
28th
Highest
Mean
1034 hPa
13th
1026 hPa
29th
1022 hPa
30th
1037 hPa
28th
1048 hPa
20th
1037 hPa
5th
1038 hPa
29th
1030 hPa
7th
1036 hPa
26th
1026 hPa
22nd
1029 hPa
12th
1023 hPa
31st
Averages Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Mean 1018 hPa 1012 hPa 1002 hPa 1010 hPa 1020 hPa 1011 hPa 1018 hPa 1018 hPa 1023 hPa 1014 hPa 1018 hPa 1013 hPa
Mean
Minimum
1015 hPa 1008 hPa 997 hPa 1003 hPa 1015 hPa 1005 hPa 1014 hPa 1016 hPa 1021 hPa 1011 hPa 1015 hPa 1011 hPa
Mean
Maximum
1022 hPa 1016 hPa 1007 hPa 1015 hPa 1026 hPa 1018 hPa 1021 hPa 1021 hPa 1026 hPa 1016 hPa 1021 hPa 1016 hPa

Past Year Seasonal Averages
Season Daily Min Daily Max Mean
Winter 19/20 1008 hPa
1020 hPa
1014 hPa
Spring 2020 1017 hPa
1023 hPa
1020 hPa
Summer 2020 1012 hPa
1018 hPa
1015 hPa
Autumn 2019 1007 hPa
1015 hPa
1011 hPa

View daily tables of min / max / mean Pressure data for the past year
View monthly tables of min / max / mean Pressure data for all months in the station history.

Last 24hrs  LondonPressure 12month mean  LondonPressure 12month min  LondonPressure 12month max  LondonPressure
Record Period Averages
Measure 7-day Month Sep 31-day Year 365-day
Lowest 987 hPa
Ending 10th Feb 2014
998 hPa
Feb 2014
1013 hPa
2017
995 hPa
Ending 15th Feb 2014
1012 hPa
2014
1011 hPa
Ending 17th Dec 2014
Highest 1040 hPa
Ending 6th Jan 2019
1029 hPa
Feb 2012
1022 hPa
Current
1029 hPa
Ending 27th Feb 2012
1017 hPa
2020
1018 hPa
Ending 1st Apr 2012
Lowest
Mean
Daily-Min
981 hPa
Ending 10th Feb 2014
992 hPa
Feb 2014
1010 hPa
2017
989 hPa
Ending 15th Feb 2014
1009 hPa
2014
1008 hPa
Ending 17th Dec 2014
Highest
Mean
Daily-Min
1038 hPa
Ending 6th Jan 2019
1026 hPa
Feb 2012
1020 hPa
Current
1026 hPa
Ending 28th Feb 2012
1014 hPa
2020
1015 hPa
Ending 1st Apr 2012
Lowest
Mean
Daily-Max
994 hPa
Ending 10th Jan 2016
1004 hPa
Feb 2014
1016 hPa
2011
1001 hPa
Ending 15th Feb 2014
1016 hPa
2014
1015 hPa
Ending 18th Dec 2014
Highest
Mean
Daily-Max
1041 hPa
Ending 6th Jan 2019
1032 hPa
Feb 2012
1024 hPa
2009
1033 hPa
Ending 27th Feb 2012
1021 hPa
2020
1021 hPa
Ending 15th May 2019

Ranked Historical Pressure Data

Highest Days
Rank Min Max Mean
1 1045 hPa
20th Jan 2020
1050 hPa
19th Jan 2020
1048 hPa
20th Jan 2020
2 1043 hPa
3rd Jan 2019
1050 hPa
20th Jan 2020
1045 hPa
19th Jan 2020
3 1041 hPa
27th Dec 2016
1046 hPa
27th Dec 2016
1044 hPa
27th Dec 2016
4 1041 hPa
28th Dec 2016
1045 hPa
21st Jan 2020
1043 hPa
3rd Jan 2019
5 1041 hPa
2nd Jan 2019
1045 hPa
28th Dec 2016
1043 hPa
2nd Jan 2019
6 1041 hPa
4th Jan 2019
1044 hPa
2nd Jan 2019
1043 hPa
28th Dec 2016
7 1040 hPa
21st Jan 2020
1044 hPa
3rd Jan 2019
1042 hPa
4th Jan 2019
8 1039 hPa
8th Feb 2012
1044 hPa
4th Jan 2019
1042 hPa
21st Jan 2020
9 1038 hPa
13th May 2019
1043 hPa
7th Feb 2012
1040 hPa
8th Feb 2012
10 1038 hPa
26th Jan 2010
1042 hPa
26th Jan 2010
1040 hPa
13th May 2019
Lowest Days
Rank Min Max Mean
1 966 hPa
8th Nov 2010
981 hPa
30th Jan 2015
976 hPa
23rd Jan 2009
2 967 hPa
23rd Jan 2009
982 hPa
24th Dec 2013
978 hPa
9th Nov 2010
3 968 hPa
9th Nov 2010
984 hPa
4th Jan 2016
978 hPa
8th Feb 2014
4 969 hPa
20th Nov 2016
985 hPa
23rd Jan 2009
978 hPa
30th Jan 2015
5 971 hPa
13th Dec 2019
985 hPa
29th Nov 2009
979 hPa
24th Dec 2013
6 972 hPa
10th Dec 2017
985 hPa
3rd Nov 2019
979 hPa
8th Nov 2010
7 972 hPa
12th Dec 2019
985 hPa
13th Dec 2019
979 hPa
1st Nov 2012
8 972 hPa
21st Dec 2019
986 hPa
21st Dec 2019
980 hPa
13th Dec 2019
9 974 hPa
22nd Dec 2019
986 hPa
4th Mar 2009
980 hPa
21st Dec 2019
10 974 hPa
30th Jan 2015
986 hPa
4th Nov 2009
981 hPa
2nd Nov 2019


Highest Months
Rank Min Max Mean
1 1026 hPa
Feb 2012
1032 hPa
Feb 2012
1029 hPa
Feb 2012
2 1025 hPa
Mar 2012
1030 hPa
Mar 2012
1028 hPa
Mar 2012
3 1024 hPa
Dec 2016
1030 hPa
Dec 2016
1027 hPa
Dec 2016
4 1021 hPa
May 2020
1026 hPa
Jan 2020
1023 hPa
May 2020
5 1020 hPa
Current
1026 hPa
May 2020
1022 hPa
Mar 2011
6 1020 hPa
Mar 2011
1025 hPa
Jan 2017
1022 hPa
Jan 2017
7 1019 hPa
Sep 2009
1025 hPa
Mar 2011
1022 hPa
Current
8 1019 hPa
Jan 2017
1025 hPa
Apr 2015
1022 hPa
Sep 2009
9 1018 hPa
Jun 2018
1024 hPa
Sep 2009
1021 hPa
Sep 2018
10 1018 hPa
Oct 2016
1024 hPa
Mar 2015
1021 hPa
Oct 2016
Lowest Months
Rank Min Max Mean
1 992 hPa
Feb 2014
1004 hPa
Feb 2014
998 hPa
Feb 2014
2 996 hPa
Jan 2014
1006 hPa
Nov 2009
1001 hPa
Jan 2014
3 996 hPa
Nov 2009
1006 hPa
Jan 2014
1001 hPa
Nov 2009
4 997 hPa
Nov 2019
1007 hPa
Nov 2019
1002 hPa
Nov 2019
5 998 hPa
Mar 2018
1007 hPa
Mar 2018
1003 hPa
Mar 2018
6 998 hPa
Feb 2010
1007 hPa
Feb 2010
1003 hPa
Feb 2010
7 1000 hPa
Apr 2012
1009 hPa
Apr 2012
1004 hPa
Apr 2012
8 1001 hPa
Nov 2010
1009 hPa
Dec 2009
1005 hPa
Dec 2009
9 1002 hPa
Dec 2009
1010 hPa
Nov 2010
1005 hPa
Nov 2010
10 1002 hPa
Dec 2012
1010 hPa
Nov 2014
1006 hPa
Nov 2014


Highest Days in September
Rank Min Max Mean
1 1035 hPa
Day 28, 2015
1039 hPa
Day 25, 2018
1037 hPa
Day 25, 2018
2 1034 hPa
Day 25, 2018
1039 hPa
Day 24, 2018
1036 hPa
Day 24, 2018
3 1034 hPa
Day 11, 2009
1038 hPa
Day 11, 2009
1036 hPa
Day 11, 2009
4 1033 hPa
Day 10, 2009
1038 hPa
Day 10, 2009
1036 hPa
Day 10, 2009
5 1032 hPa
Day 29, 2015
1037 hPa
Day 13, 2019
1036 hPa
Day 28, 2015
Lowest Days in September
Rank Min Max Mean
1 985 hPa
Day 24, 2012
989 hPa
Day 25, 2012
988 hPa
Day 25, 2012
2 985 hPa
Day 16, 2015
996 hPa
Day 24, 2012
988 hPa
Day 16, 2015
3 987 hPa
Day 17, 2015
996 hPa
Day 16, 2015
989 hPa
Day 24, 2012
4 988 hPa
Day 25, 2012
998 hPa
Day 15, 2015
992 hPa
Day 26, 2012
5 989 hPa
Day 26, 2012
999 hPa
Day 26, 2012
994 hPa
Day 14, 2015

Notes:

  • Valid Pressure records began in January 2009
  • All figures, unless specified, relate to the period midnight-midnight, this being when daily extremes are reset
  • All values are accurate to ±0.2 mb since Sept 2017; before that, to within ±2 mb