Mawson 00Z 850hPa height 1957 - - - 1168.8 1190.5 1187.0 1143.5 1193.3 1102.3 1152.5 1217.3 1249.6 1958 1213.3 1214.7 1180.7 1164.7 1202.0 1189.2 1126.8 1099.6 1085.8 1145.9 1166.7 1141.6 1959 - - - - - - - - - - - - 1960 - - 1107.3 1164.1 1165.4 1128.5 1120.4 1121.2 1049.5 1139.3 1131.9 1158.3 1961 1189.6 1224.1 1147.6 1159.3 1151.4 1179.1 1102.5 1103.8 1189.6 1126.9 1168.7 1141.4 1962 1162.5 1162.4 1133.3 1126.1 1142.9 1239.3 1098.3 1055.5 1119.3 1075.2 1169.0 1158.4 1963 1157.4 1167.1 1121.6 1158.3 1173.8 1152.3 1124.2 1234.0 1164.3 1098.1 1099.3 1198.3 1964 1259.3 1187.9 1156.4 1131.7 1085.0 1246.7 1269.3 1136.4 1041.4 1073.6 1168.8 1191.8 1965 1227.7 1258.5 1144.8 1159.0 1208.1 1160.3 1126.9 1138.1 1093.9 1106.2 1082.9 1234.0 1966 1177.0 1214.1 1190.4 1138.7 1187.9 1140.0 1165.0 1054.4 1105.3 1059.0 1190.7 1211.3 1967 1240.0 1228.3 1161.1 1166.9 1183.8 1168.2 1135.0 1116.3 1096.3 1132.9 1188.0 1186.1 1968 1210.3 1201.0 1203.9 1180.0 1195.0 1162.5 1085.8 1127.2 1080.0 1120.0 1163.3 1206.1 1969 1263.3 1213.2 1155.7 1182.3 1166.7 1240.0 1075.8 1057.4 1092.0 1144.0 1157.3 1178.7 1970 1171.0 1172.5 1162.4 1167.3 1131.0 1155.7 1129.7 1079.0 1128.7 1141.6 1168.0 1224.2 1971 1243.5 1192.9 1151.6 1177.9 1201.9 1109.0 1136.1 1114.7 1133.8 1121.3 1156.2 1218.4 1972 1233.2 1203.1 1207.3 1208.6 1177.7 1194.8 1152.7 1183.2 1170.7 1126.2 1119.3 1229.3 1973 1232.0 1184.3 1107.4 1158.3 1201.8 1167.9 1118.3 1067.0 1111.1 1111.1 1138.2 1141.1 1974 - - - - - - - - - - - - 1975 - - 1167.7 1121.1 1205.8 1178.9 1166.8 1093.1 1084.2 1080.7 1119.7 1215.9 1976 1216.1 1175.4 1161.3 1102.4 1110.0 1132.1 1083.5 1092.1 1058.9 1074.1 1191.3 1295.9 1977 1232.9 1186.4 1164.5 1151.7 1176.9 1181.7 1178.7 1170.6 1063.7 1077.5 1130.3 1175.0 1978 1160.3 1179.3 1169.4 1141.7 1174.1 1117.9 1194.8 1050.6 1120.3 1131.0 1143.4 1189.0 1979 1194.7 1164.3 - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 1212.0 1163.7 1149.3 1176.3 1048.4 1098.3 1084.5 1109.0 1115.5 1095.5 1177.3 1183.3 1990 1213.9 1157.0 1170.3 1196.1 1221.0 1175.8 1246.0 1063.6 1035.0 1145.7 1156.2 1163.7 1991 1158.0 1217.9 1128.5 1129.7 1140.8 1177.5 1173.1 1105.4 1132.2 1063.9 1167.5 1261.6 1992 1208.9 1228.9 1187.8 1183.2 1230.4 1207.8 1105.1 1076.4 1067.3 1113.7 1087.7 - 1993 1242.3 1127.0 1171.6 1133.7 1105.2 1113.2 1056.3 1050.8 1088.1 1074.3 1122.9 1163.6 1994 1172.9 1141.1 1112.5 1168.6 1166.1 1225.0 1158.9 1087.5 1111.9 1098.2 1186.3 1147.6 1995 1163.5 1179.4 1150.3 1149.3 1113.9 1142.2 1200.6 1125.8 1023.2 1146.8 1163.2 1154.2 1996 1193.2 1206.6 1128.2 1143.0 1127.2 1148.1 1172.0 1128.4 1213.2 1090.7 1194.0 1197.5 1997 1196.2 1161.2 1094.0 1189.9 1115.5 1187.4 1064.7 1090.5 1086.8 1120.8 1192.9 1212.9 1998 1176.4 1157.7 1152.8 1052.5 1124.0 1106.8 1097.8 1062.9 1132.0 1111.3 1082.2 1127.6 1999 1187.6 1184.2 1159.6 1109.3 1104.1 1207.3 1107.4 1092.1 1116.8 1022.4 1123.5 1109.0 2000 1126.1 1141.5 1131.2 1150.0 1078.5 1159.2 1126.4 1111.5 1157.6 1079.5 1180.8 1231.1 2001 1173.6 1204.0 1158.0 1100.1 1153.6 1147.7 1152.3 1078.9 1078.9 1087.3 1103.1 1108.2 2002 1163.6 1118.3 1197.4 1145.1 1222.1 1150.6 1165.5 1079.6 1126.5 1188.5 1149.5 1130.8 2003 1222.0 1193.8 1159.8 1122.4 1154.5 1196.6 1125.7 1083.0 1095.3 1117.2 1151.2 1232.1 2004 1177.6 1223.5 1112.2 1125.5 1144.1 1096.3 1068.0 1067.8 1064.6 1131.8 1134.5 1206.9 2005 1194.1 1153.0 1150.4 1109.0 1152.2 1195.6 1133.3 1098.6 1072.6 1099.2 1128.5 1256.1 2006 1187.5 1170.8 1132.6 1149.2 1117.9 1110.2 1043.2 1212.6 1105.0 1083.6 1099.0 1166.0 2007 1182.6 1159.3 1172.5 1168.8 1144.4 1198.9 1220.5 1120.6 1121.0 1130.9 1142.0 1115.6 2008 1168.0 1115.1 1156.7 - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -