Detailed Pressure Data

Current
Measure Value
Pressure 1019 hPa
Pressure Trend -0 hPa /hr
24hr Mean Pressure 1014 hPa
Recent Averages and Extremes
Measure Today Yesterday
Minimum 1019 hPa
05:45
1004 hPa
08:33
Maximum 1020 hPa
01:58
1020 hPa
23:29
Mean 1020 hPa
1012 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 (09-21)
Measure 7-day Month 31-day Year 365-day Overall Sep 28th Sep
Lowest
Min
1004 hPa
27th
1004 hPa
27th
1004 hPa
27th
974 hPa
20th Jan
972 hPa
28th Dec
966 hPa
8th Nov 2010
985 hPa
Day 24, 2012
1005 hPa
2019
Highest
Max
1032 hPa
22nd
1033 hPa
1st
1033 hPa
1st
1043 hPa
27th Feb
1043 hPa
27th Feb
1050 hPa
19th Jan 2020
1039 hPa
Day 25, 2018
1037 hPa
2015
Highest
Min
1024 hPa
22nd
1030 hPa
1st
1030 hPa
1st
1041 hPa
27th Feb
1041 hPa
27th Feb
1045 hPa
20th Jan 2020
1035 hPa
Day 28, 2015
1035 hPa
2015
Lowest
Max
1014 hPa
26th
1011 hPa
9th
1011 hPa
9th
988 hPa
21st Jan
983 hPa
28th Dec
981 hPa
30th Jan 2015
989 hPa
Day 25, 2012
1010 hPa
2019
Lowest
Mean
1012 hPa
27th
1010 hPa
9th
1010 hPa
9th
986 hPa
21st Jan
976 hPa
28th Dec
976 hPa
28th Dec 2020
988 hPa
Day 25, 2012
1009 hPa
2019
Highest
Mean
1028 hPa
22nd
1032 hPa
1st
1032 hPa
1st
1042 hPa
27th Feb
1042 hPa
27th Feb
1048 hPa
20th Jan 2020
1037 hPa
Day 25, 2018
1036 hPa
2015
Averages                
Mean 1018 hPa 1019 hPa 1020 hPa 1018 hPa 1016 hPa 1015 hPa 1017 hPa 1020 hPa
Mean
Minimum
1015 hPa 1017 hPa 1018 hPa 1015 hPa 1013 hPa 1012 hPa 1014 hPa 1018 hPa
Mean
Maximum
1021 hPa 1022 hPa 1022 hPa 1021 hPa 1019 hPa 1019 hPa 1020 hPa 1022 hPa

Past Year Monthly Averages and Extremes (September 2020 - August 2021)
Extremes Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Lowest
Min
994 hPa
24th
981 hPa
4th
994 hPa
15th
972 hPa
28th
974 hPa
20th
992 hPa
1st
990 hPa
13th
1006 hPa
28th
995 hPa
4th
1009 hPa
17th
994 hPa
6th
996 hPa
7th
Highest
Max
1031 hPa
17th
1028 hPa
11th
1042 hPa
5th
1033 hPa
25th
1033 hPa
15th
1043 hPa
27th
1036 hPa
6th
1035 hPa
15th
1031 hPa
30th
1030 hPa
13th
1030 hPa
17th
1032 hPa
31st
Highest
Min
1027 hPa
17th
1024 hPa
16th
1036 hPa
5th
1029 hPa
25th
1026 hPa
15th
1041 hPa
27th
1032 hPa
17th
1033 hPa
14th
1026 hPa
30th
1024 hPa
5th
1028 hPa
17th
1029 hPa
24th
Lowest
Max
1001 hPa
24th
989 hPa
4th
1003 hPa
15th
983 hPa
28th
988 hPa
21st
1001 hPa
2nd
1006 hPa
13th
1010 hPa
28th
1001 hPa
16th
1012 hPa
20th
1008 hPa
5th
1002 hPa
6th
Lowest
Mean
997 hPa
24th
984 hPa
4th
997 hPa
15th
976 hPa
28th
986 hPa
21st
996 hPa
2nd
997 hPa
13th
1007 hPa
28th
998 hPa
21st
1010 hPa
20th
1001 hPa
6th
999 hPa
7th
Highest
Mean
1029 hPa
17th
1026 hPa
11th
1039 hPa
5th
1031 hPa
25th
1030 hPa
15th
1042 hPa
27th
1035 hPa
6th
1034 hPa
15th
1029 hPa
30th
1027 hPa
13th
1029 hPa
17th
1030 hPa
24th
Averages Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Mean 1018 hPa 1009 hPa 1020 hPa 1004 hPa 1012 hPa 1016 hPa 1023 hPa 1024 hPa 1011 hPa 1019 hPa 1016 hPa 1018 hPa
Mean
Minimum
1015 hPa 1005 hPa 1016 hPa 998 hPa 1008 hPa 1013 hPa 1019 hPa 1021 hPa 1008 hPa 1018 hPa 1013 hPa 1016 hPa
Mean
Maximum
1020 hPa 1013 hPa 1025 hPa 1009 hPa 1016 hPa 1019 hPa 1026 hPa 1027 hPa 1015 hPa 1022 hPa 1018 hPa 1020 hPa

Past Year Seasonal Averages
Season Daily Min Daily Max Mean
Winter 20/21 1006 hPa
1015 hPa
1011 hPa
Spring 2021 1016 hPa
1023 hPa
1019 hPa
Summer 2021 1016 hPa
1020 hPa
1018 hPa
Autumn 2020 1012 hPa
1019 hPa
1016 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
2009
1029 hPa
Ending 27th Feb 2012
1018 hPa
2021
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
1019 hPa
2009
1026 hPa
Ending 28th Feb 2012
1015 hPa
2021
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
2021
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
27th Feb 2021
1045 hPa
28th Dec 2016
1043 hPa
2nd Jan 2019
6 1041 hPa
2nd Jan 2019
1044 hPa
2nd Jan 2019
1043 hPa
28th Dec 2016
7 1041 hPa
4th Jan 2019
1044 hPa
3rd Jan 2019
1042 hPa
4th Jan 2019
8 1040 hPa
21st Jan 2020
1044 hPa
4th Jan 2019
1042 hPa
21st Jan 2020
9 1039 hPa
8th Feb 2012
1043 hPa
7th Feb 2012
1042 hPa
27th Feb 2021
10 1038 hPa
13th May 2019
1043 hPa
27th Feb 2021
1040 hPa
8th Feb 2012
Lowest Days
Rank Min Max Mean
1 966 hPa
8th Nov 2010
981 hPa
30th Jan 2015
976 hPa
28th Dec 2020
2 967 hPa
23rd Jan 2009
982 hPa
24th Dec 2013
976 hPa
23rd Jan 2009
3 968 hPa
9th Nov 2010
983 hPa
28th Dec 2020
978 hPa
9th Nov 2010
4 969 hPa
20th Nov 2016
984 hPa
4th Jan 2016
978 hPa
27th Dec 2020
5 971 hPa
13th Dec 2019
985 hPa
4th Dec 2020
978 hPa
4th Dec 2020
6 972 hPa
10th Dec 2017
985 hPa
23rd Jan 2009
978 hPa
8th Feb 2014
7 972 hPa
28th Dec 2020
985 hPa
29th Nov 2009
978 hPa
30th Jan 2015
8 972 hPa
12th Dec 2019
985 hPa
3rd Nov 2019
979 hPa
24th Dec 2013
9 972 hPa
21st Dec 2019
985 hPa
13th Dec 2019
979 hPa
8th Nov 2010
10 973 hPa
4th Dec 2020
986 hPa
21st Dec 2019
979 hPa
1st Nov 2012


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
Apr 2021
1027 hPa
Apr 2021
1024 hPa
Apr 2021
5 1021 hPa
May 2020
1026 hPa
Mar 2021
1023 hPa
Mar 2021
6 1020 hPa
Mar 2011
1026 hPa
Jan 2020
1023 hPa
May 2020
7 1019 hPa
Sep 2009
1026 hPa
May 2020
1022 hPa
Mar 2011
8 1019 hPa
Mar 2021
1025 hPa
Jan 2017
1022 hPa
Jan 2017
9 1019 hPa
Jan 2017
1025 hPa
Mar 2011
1022 hPa
Sep 2009
10 1018 hPa
Jun 2018
1025 hPa
Nov 2020
1021 hPa
Sep 2018
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
Dec 2020
1007 hPa
Mar 2018
1003 hPa
Mar 2018
6 998 hPa
Mar 2018
1007 hPa
Feb 2010
1003 hPa
Feb 2010
7 998 hPa
Feb 2010
1009 hPa
Apr 2012
1004 hPa
Dec 2020
8 1000 hPa
Apr 2012
1009 hPa
Dec 2009
1004 hPa
Apr 2012
9 1001 hPa
Nov 2010
1009 hPa
Dec 2020
1005 hPa
Dec 2009
10 1002 hPa
Dec 2009
1010 hPa
Nov 2010
1005 hPa
Nov 2010


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