Mcmurdo 00Z 850hPa height 1956 - - - - - - - 1122.3 1070.9 1045.8 - - 1957 - - - 1140.2 1162.2 1167.5 1082.5 1113.1 1079.3 1110.0 1163.3 1258.4 1958 - - 1184.1 1177.2 1138.4 1157.8 1123.7 1091.8 1032.7 1080.7 1124.9 1140.8 1959 1192.7 1147.0 - - 1114.2 1153.9 1129.8 1179.7 1038.9 1084.5 1094.6 1222.7 1960 1216.7 1185.8 - - - - - - - - - - 1961 1201.4 1240.0 1184.8 1130.9 1156.0 1167.0 1111.6 1084.1 1148.0 1093.5 1146.7 - 1962 1171.2 1193.7 1146.0 1086.6 1102.1 1188.4 1043.7 1089.6 1133.2 1084.2 1171.4 1175.6 1963 1165.7 1163.5 1147.5 1129.0 1134.8 1095.6 1087.7 1231.9 1117.4 1081.6 1093.1 1205.6 1964 1267.7 1218.9 1153.2 1106.4 1023.2 1192.2 1237.9 1172.0 1041.2 1066.0 1190.9 1230.2 1965 1232.3 1288.6 1145.3 1108.7 1190.0 1150.3 1143.1 1095.9 1106.5 1119.9 1104.9 1237.3 1966 1197.2 1211.9 1243.4 1125.6 1183.9 1100.0 1147.6 1016.5 1052.4 1036.4 1143.5 1216.8 1967 1272.7 1238.1 1171.6 1161.0 1146.6 1134.4 1120.7 1056.3 1090.6 1091.2 1202.9 1212.6 1968 1215.4 1195.1 1179.4 1118.9 1212.9 1139.5 1054.7 1103.5 1100.9 1129.4 1184.2 1205.2 1969 1293.0 1201.9 1156.8 1180.3 1141.1 1211.3 1054.1 1066.5 1101.3 1105.6 1127.6 1197.0 1970 1190.5 1169.1 1147.2 1159.0 1077.6 1127.3 1162.6 1020.6 1115.3 1125.1 1138.5 1238.6 1971 1236.0 1191.5 - 1150.5 1179.8 1081.1 1125.2 1132.9 1083.5 1135.1 1149.8 1230.2 1972 1273.4 1207.2 1186.0 1202.9 1142.2 1194.1 1136.8 1157.1 1103.2 1042.7 1097.7 1230.3 1973 1253.5 1178.9 1094.2 1145.4 1189.0 1151.5 1107.6 1065.9 1085.3 1072.0 1151.2 1153.4 1974 1247.5 1124.2 1116.3 1114.7 1140.4 1198.3 1121.4 1202.9 1049.2 1109.7 1192.9 1239.8 1975 1250.2 1182.0 1155.2 1101.0 1202.0 1152.8 1169.7 1069.7 1035.9 1061.0 1148.1 1224.0 1976 1244.3 1176.6 1120.7 1075.9 1112.9 1116.4 1129.5 1077.2 1047.6 1055.9 1171.5 1322.6 1977 1280.0 1203.2 1159.4 1167.4 1142.1 1163.3 1121.8 1150.4 1050.0 1051.8 1115.6 1219.2 1978 1202.7 1190.9 1167.0 1168.9 1131.8 1145.5 1219.5 1047.3 1091.8 1087.7 1158.6 1194.1 1979 1198.8 1180.1 1113.6 1134.6 1105.8 1090.3 1016.0 1098.0 1063.7 1101.6 1150.8 1238.9 1980 1235.0 1220.8 1175.6 1201.5 1144.8 1082.6 1176.1 1118.7 1178.0 1046.9 1216.7 1201.0 1981 1195.7 1195.7 1182.7 1198.0 1115.9 1104.1 1134.1 1179.1 1144.5 - - - 1982 - - - 1100.4 1160.6 1070.8 1139.5 1046.9 - 1082.7 1142.5 1283.2 1983 - - - - 1157.9 1096.3 1112.9 - - - 1103.6 1201.4 1984 1267.2 1219.8 1097.7 - 1146.5 1094.4 1051.2 1108.8 1093.1 1050.5 1126.8 1261.9 1985 1259.7 1179.9 1156.9 1140.1 1160.5 1109.2 1022.6 1130.1 1038.3 1064.5 1058.2 1124.9 1986 - 1248.8 - - - - - - - 1069.4 1092.4 1183.1 1987 1287.9 1198.5 1168.2 1157.0 1109.9 - 1186.7 1050.6 1168.5 1104.2 1112.9 1203.1 1988 1226.4 1167.4 1143.8 1143.2 1170.0 1218.0 1089.2 1102.2 1127.3 1197.4 1144.0 1183.7 1989 1193.8 1178.0 1145.1 1177.1 1035.8 1086.1 1094.1 1117.4 1122.7 1109.7 1088.1 1237.0 1990 1224.6 1148.8 1150.5 1192.2 1246.7 1139.7 - 1083.0 1033.3 1144.7 - 1244.1 1991 1196.6 1233.6 1136.8 1189.2 1150.8 1201.7 1197.1 1157.4 1159.8 1129.8 1180.9 1271.9 1992 1210.8 1257.1 1175.1 1138.9 1206.5 1180.1 1089.1 1132.7 1041.4 1090.2 1104.6 1168.7 1993 1276.1 1147.1 1128.5 1102.6 1111.0 1027.6 960.8 1065.8 1081.8 1091.6 1130.3 1168.7 1994 1192.1 1147.6 - - - 1233.2 1160.1 1031.6 - 1100.8 1168.6 1147.2 1995 1163.0 1148.9 - 1112.8 1085.7 1167.6 1242.5 1144.2 - 1115.6 1128.6 1143.9 1996 1187.9 1228.4 1144.4 1076.8 1106.8 1114.4 1093.9 1138.0 1140.5 1047.8 1191.2 1194.9 1997 1207.8 1212.1 1097.0 1109.7 - - - - 1105.6 1127.5 1216.1 1242.3 1998 1198.6 1156.0 1145.3 1070.5 1137.1 1103.3 1129.4 1113.3 1146.2 1127.3 1091.8 1173.9 1999 1192.2 1195.4 1141.9 1099.0 1082.7 1244.6 1096.4 1120.2 1125.2 1014.9 1099.1 1117.1 2000 1166.7 1166.3 1157.9 1143.5 1121.5 1139.9 1119.3 1125.4 1177.5 1096.0 1163.6 1277.9 2001 1234.4 1217.0 1148.2 1104.5 1137.7 1126.9 1159.7 1090.9 1100.7 1065.9 1115.1 1142.4 2002 1198.4 1134.3 1208.0 1126.4 1207.7 1192.5 1151.4 1075.1 1161.6 1188.3 1163.8 1150.7 2003 1254.0 1225.4 1163.3 1105.2 1114.7 1207.5 1107.3 1076.5 1106.1 1078.9 1165.8 1280.0 2004 1205.9 1261.8 1136.2 1098.3 1121.4 1100.2 1038.6 1113.3 1110.8 1121.8 1132.2 1254.5 2005 1225.6 1144.4 1157.4 1099.4 1121.0 1181.0 1121.0 1078.9 1094.9 1076.3 1153.3 1295.5 2006 1215.2 1194.1 1173.5 1160.2 1080.8 1104.2 1071.0 - 1123.8 1088.7 1145.1 1185.9 2007 1231.7 1173.0 1200.3 1149.2 1181.6 1154.9 1238.8 1112.1 1102.2 1129.5 1163.6 1141.7 2008 1181.7 1140.7 1157.9 1169.5 1135.2 1093.2 1092.6 1087.7 1071.6 1073.5 1130.4 1163.7 2009 1158.8 1178.1 1125.5 1139.9 1174.2 1173.0 1177.3 1155.8 1106.7 1073.9 1160.9 1170.8 2010 1275.1 1225.4 1152.2 1119.3 1117.1 1063.8 1008.6 1035.6 1081.1 1076.4 1083.6 1218.8 2011 1238.1 1173.1 1180.8 1176.9 1085.5 1146.0 1127.7 1140.7 1153.1 1088.0 1188.5 1123.2 2012 1128.5 1166.8 1129.1 1095.5 1090.8 1179.0 1084.3 1102.2 1086.7 1086.3 1192.1 1213.5 2013 1203.9 1121.4 1076.8 1100.1 1127.4 1196.4 1108.5 1203.0 1181.8 1121.7 1124.1 1180.0 2014 1243.9 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - 1191.4 1132.5 1071.6 1069.3 1072.2 1055.6 1063.6 1119.1 1087.3 1164.9 2018 1169.3 1138.5 1148.7 1152.3 1112.1 1152.7 1117.7 1163.2 1052.6 1060.1 1094.7 1155.4 2019 1177.2 1200.1 1146.5 1108.7 1156.4 1026.7 1155.1 1110.8 1020.8 1106.2 1215.8 1260.8 2020 1215.8 1149.9 1081.8 1111.6 1083.4 1063.1 1115.8 1125.2 1102.5 1042.5 1095.6 1113.2 2021 1141.7 1110.0 1149.5 1069.2 1102.4 1103.9 1151.8 1132.5 1042.0 1103.9 1083.4 1093.3 2022 1159.1 1148.2 1118.4 1112.1 1092.7 1168.3 1061.8 1064.0 1047.5 1087.6 1076.3 1112.5 2023 1116.9 1154.7 1139.9 1180.7 1101.9 1148.2 1089.4 1089.0 1113.1 1056.0 1115.6 1120.1 2024 1159.8 1145.4 1108.3 1039.9 - - - - - - - -