Halley 12Z 850hPa height 1957 - - - 1234.0 1151.5 1139.0 1084.6 1136.3 1139.1 1146.2 1195.3 1246.7 1958 1185.8 1207.2 1130.6 1150.5 1168.0 1117.1 1145.1 1062.8 1052.5 1078.0 1161.0 1153.7 1959 1177.8 1151.6 1157.7 1139.5 1137.0 1182.1 1091.8 1164.3 1088.8 1083.7 1059.6 1218.5 1960 1168.8 1178.1 1062.1 1137.9 1164.4 1140.5 1081.7 1105.9 1125.8 1127.4 1110.8 1162.2 1961 1211.0 1243.4 1177.6 1139.0 1137.5 1171.9 1123.2 1104.3 1151.4 1023.1 1132.4 1142.6 1962 1160.4 1174.2 1120.8 1105.6 1132.5 1206.8 1097.0 1100.7 1112.4 1095.6 1153.7 1172.5 1963 1159.9 1164.3 1097.5 1132.0 1177.8 1095.6 1121.0 1209.7 1139.6 1116.6 1091.9 1204.5 1964 1246.0 1206.3 1130.0 1106.2 1046.4 1271.2 1257.7 1118.9 1042.4 1062.1 1195.6 1212.4 1965 1234.7 1265.0 1140.1 1154.2 1189.3 1068.0 1130.4 1154.6 1127.9 1124.8 1093.9 1257.4 1966 1182.1 1217.9 1203.6 1061.8 1175.7 1135.4 1139.4 1044.4 1062.8 1090.0 1177.2 1201.6 1967 1260.6 1224.8 1159.5 1165.9 1151.0 1153.9 1086.4 1104.8 1114.1 1111.8 1157.6 1199.9 1968 1206.9 1211.3 1196.4 1163.0 1178.6 1116.8 1103.4 1084.1 1061.4 1156.7 1187.5 1209.5 1969 1270.6 1203.1 1124.7 1163.9 1141.5 1147.8 1088.4 1111.5 1119.5 1109.3 1139.0 1204.3 1970 1179.4 1172.8 1151.8 1131.0 1151.4 1134.0 1129.1 1089.3 1173.1 1145.0 1172.1 1230.3 1971 1242.4 1162.6 1133.8 1175.8 1189.1 1104.3 1143.4 1156.4 1090.3 1100.1 1144.9 1224.9 1972 1244.8 1193.9 1187.9 1185.8 1149.7 1142.9 1188.8 1161.3 1109.8 1111.3 1118.0 1205.5 1973 1234.4 1173.8 1098.1 1099.2 1167.4 1166.9 1074.1 1091.7 1099.1 1141.7 1125.0 1150.3 1974 1229.5 1140.2 1130.4 1152.6 1091.8 1167.8 1104.2 1200.2 1031.7 1130.1 1201.9 1242.2 1975 1231.4 1184.9 1141.6 1079.4 1163.5 1104.0 1189.9 - - - - 1228.5 1976 1239.5 1182.5 1136.8 1116.4 1113.0 1135.9 1134.0 1035.1 1063.1 1061.7 1210.4 1313.7 1977 1253.3 1172.0 1148.5 1197.5 - 1175.2 1103.0 1168.3 1050.4 1077.1 1137.1 1215.9 1978 1178.6 1141.4 1151.6 1154.2 1170.8 1161.2 1154.3 1055.2 1065.7 1113.2 1159.7 1182.8 1979 1198.4 1164.9 1118.1 1100.0 1089.4 1108.4 1023.9 1105.3 1113.8 1105.3 1168.9 1242.2 1980 1202.3 1214.4 1163.9 1157.5 1105.5 1110.4 1132.9 1137.5 1143.2 1095.0 1168.6 1211.3 1981 - 1188.9 1203.5 1148.6 1147.6 1105.6 1147.5 - - - - - 1982 - - 1099.1 1079.6 1105.8 1116.4 1091.1 1062.8 1037.0 1106.2 1168.4 1250.3 1983 1238.9 1195.8 1144.2 1139.6 1208.7 1146.7 1119.8 1075.1 1106.8 1081.7 1107.8 1170.3 1984 - 1204.1 1117.5 1140.9 1169.4 1115.1 1138.8 1145.1 1137.1 1102.8 1133.2 1278.9 1985 1253.2 1187.2 1149.7 1153.4 1148.8 1142.2 1005.9 1108.3 1044.2 1111.2 1085.7 1133.8 1986 1202.8 1247.8 1192.1 1123.0 1183.1 1164.9 1105.8 1070.1 1023.8 1065.0 1124.6 1164.3 1987 1262.1 1291.0 1144.5 1149.8 1162.4 1160.2 1141.2 1054.9 1105.4 1102.3 1089.0 1192.7 1988 1226.1 1168.3 1157.1 1120.0 1161.3 1206.4 1074.6 1134.6 1184.1 1228.4 1151.1 1170.2 1989 1211.5 1148.4 1158.5 1139.2 1034.8 1098.3 1085.7 1185.6 1154.0 1108.6 1160.3 1221.1 1990 1224.9 1156.2 1167.8 1191.2 1220.2 1183.5 1162.9 1097.3 1080.4 1104.9 1118.2 1186.9 1991 1162.4 1207.0 1138.1 1168.5 1121.6 1127.3 1135.8 1084.6 1149.3 1104.9 1164.5 1269.4 1992 - 1225.2 1106.9 1159.8 1194.6 1199.1 1083.9 1076.0 1111.2 1151.8 1107.1 1189.4 1993 1268.1 1171.8 1147.5 1133.5 1097.2 1115.4 1092.2 1086.0 1080.2 1074.7 1163.5 1165.5 1994 1187.3 1145.4 1117.5 1124.4 1158.5 1238.8 1124.5 1079.2 1121.1 1094.1 1192.4 1128.8 1995 1183.6 1149.5 1150.3 1127.2 1100.6 1153.1 1196.5 1109.6 1075.5 1132.1 1131.1 1127.3 1996 1196.3 1194.5 1117.3 1136.8 1114.8 1148.1 1080.5 1159.8 1172.5 1084.0 1157.9 1198.3 1997 1212.6 1168.1 1054.8 1118.1 1062.4 1123.2 1062.0 1078.8 1061.8 1083.3 1190.1 1189.4 1998 1190.4 1160.9 1126.1 1066.0 1073.4 1105.6 1083.9 1091.8 1097.6 1099.8 1102.2 1149.9 1999 1184.7 1184.5 1171.2 1087.5 1111.5 1207.8 1094.6 1048.3 1105.0 1045.2 1143.3 1101.2 2000 1138.8 1171.0 1171.9 1138.1 1121.9 1134.7 1163.6 1105.4 1147.9 1105.8 1175.2 1245.4 2001 1193.8 1201.1 1140.7 1086.8 1176.4 1106.7 1126.3 1057.2 1092.1 1032.8 1100.8 1124.4 2002 1177.7 1125.8 1177.7 1133.7 1176.9 1118.6 1128.2 1090.5 1106.2 1162.1 1150.3 1160.9 2003 1251.2 1197.9 1153.4 1092.9 1109.0 1165.2 1105.8 1059.0 1111.8 1122.1 1150.3 1230.0 2004 1175.2 1204.0 1122.0 1130.1 1140.8 1083.7 1068.6 1061.9 1121.4 1119.2 1165.1 1221.9 2005 1196.0 1136.4 1161.7 1106.7 1132.5 1165.8 1102.9 1105.7 1131.2 1120.8 1162.9 1263.6 2006 1197.2 1171.4 1150.7 1132.9 1046.4 1132.7 1079.2 1139.7 1123.5 1079.2 1115.0 1182.5 2007 1204.9 1162.5 1165.4 1167.5 1166.1 1188.7 1206.6 1118.0 1163.7 1115.5 1154.9 1108.0 2008 1169.6 1129.6 1129.1 1150.0 1182.8 1105.3 1102.7 1078.3 1148.2 1075.3 1116.8 1104.4 2009 1146.9 1167.0 1127.0 1108.4 1168.3 1158.3 1112.6 1157.4 1132.2 1065.2 1175.7 1176.1 2010 1240.5 1210.4 1132.4 1105.6 1116.5 1107.0 1057.1 1095.4 1115.0 1091.5 1122.0 1201.1 2011 1213.7 1175.2 1203.7 1154.1 1121.9 1151.6 1152.0 1161.0 1140.2 1121.2 1161.3 1084.5 2012 1125.0 1159.4 1136.0 1152.6 1138.5 1109.9 1112.4 1095.3 1101.0 1072.5 1166.5 1204.3 2013 1186.2 1126.6 1104.4 1108.4 1099.5 1185.1 1107.7 1176.8 1160.7 1099.3 1102.7 1159.7 2014 1216.4 1169.9 1135.2 1148.0 1172.7 1148.1 1079.4 - - 1103.0 1128.6 1128.0 2015 1172.7 1111.9 1095.4 1096.9 1114.4 1116.9 1053.1 1038.7 1053.1 1130.4 1119.5 1187.1 2016 1146.7 1145.3 1074.9 1095.5 1087.4 1072.8 1079.1 1122.0 1042.2 1095.7 1186.0 1222.5 2017 1240.1 1186.9 - - - - - - - - - 1168.1 2018 1165.4 1123.4 - - - - - - - - - 1181.4 2019 1151.8 1144.9 - - - - - - - - - 1260.4 2020 1205.9 - - - - - - - - - - - 2021 - - - - - - - - - - - 1097.3 2022 1199.3 - - - - - - - - - - 1131.4 2023 1138.5 - - - - - - - - - - 1142.7 2024 1196.4 - - - - - - - - - - -