Mcmurdo 12Z 850hPa height 1956 - - - - - - - 1093.8 1099.2 1040.3 - - 1957 - - - 1144.2 1159.7 1175.9 1079.2 1113.4 1076.7 1110.9 1165.1 1256.8 1958 - - 1180.4 1179.0 1137.2 1154.2 1121.8 1092.4 1022.4 1079.6 1126.1 1143.9 1959 1188.9 1147.3 1129.9 - 1145.3 1168.0 1125.1 1171.7 1049.5 1085.8 1092.3 1231.1 1960 1213.3 1173.3 - - - - - - - - - - 1961 1197.6 1244.7 1183.6 1138.7 1155.7 1178.4 1107.6 1088.1 1145.4 1082.1 1146.4 - 1962 1168.0 1186.0 1153.7 1086.8 1097.1 1168.3 1039.6 1102.5 1140.1 1083.9 1175.4 1177.1 1963 1161.0 1155.6 - - - - - - - 1085.8 1093.7 1199.4 1964 1265.6 1205.1 - - - - - - - 1064.8 1191.4 1225.0 1965 1232.7 1287.9 - - - - - - - 1115.0 1101.0 1239.5 1966 1196.8 1205.4 - - - - - - - 1036.2 1152.6 1218.9 1967 1268.0 1238.2 - - - - - - - 1092.7 1196.6 1211.1 1968 1204.4 1206.0 - - - - - - - 1136.7 1181.4 1210.9 1969 1292.8 1195.0 - - - - - - - 1090.3 1124.8 1194.1 1970 1191.3 1167.6 - - - - - - - 1111.9 1139.9 1237.2 1971 1233.2 1185.6 - - - - - - - 1130.1 1150.9 1228.8 1972 1275.4 1196.5 - - - - - - - 1033.9 1103.5 1232.0 1973 1249.6 1194.9 - - - - - - - 1079.0 1146.0 1154.9 1974 1246.3 1113.9 - - - - - - - 1110.6 1196.1 1237.4 1975 1245.6 1174.0 - - - - - - - 1070.8 1148.7 1221.0 1976 1247.2 1182.8 - - - - - - - 1058.1 1169.0 1325.0 1977 1273.1 1199.4 - - - - - - - 1045.9 1107.7 1218.9 1978 1202.5 1196.9 - - - - - - - 1083.9 1154.0 1195.5 1979 1196.5 1169.8 - - 1068.2 1039.3 - 1045.7 - - 1164.7 1239.3 1980 1238.6 1194.2 - - - - - - - 1037.4 1218.6 1202.0 1981 1204.1 1193.9 - - - - - - - - - - 1982 - - - - - - - - - 1085.9 1173.0 1262.5 1983 - - - - - - - - - - 1070.7 1202.9 1984 1270.8 1223.0 - - - - - - - 1055.3 1140.3 1261.5 1985 1259.2 1201.8 - - - - - - - 1072.2 1048.9 1114.0 1986 - 1243.4 - - - - - - - 1074.1 1111.9 1180.7 1987 1276.6 1216.0 - - - - - - - 1102.6 1120.0 1201.7 1988 1226.8 1167.4 - - - - - - - 1195.0 1140.6 1183.5 1989 1198.0 1181.3 - - - - - - - 1102.8 1116.2 1219.7 1990 1224.9 1136.2 - - - - - - 1031.8 1117.4 - 1233.8 1991 1188.7 1220.8 - - - - - - - 1090.2 1183.2 1277.3 1992 - 1240.5 - - - - - - - 1100.9 1103.8 1176.9 1993 1278.2 1123.8 - - - - - - - 1070.4 1135.4 1168.4 1994 1199.1 1154.6 1080.5 1160.5 - - - - - - 1174.3 1141.7 1995 1149.9 1157.9 - - - - - - - 1104.2 1113.2 1140.4 1996 1204.5 1222.6 - - - - - - 1177.7 1036.3 1181.5 1189.4 1997 1229.2 1229.4 - - - - - - 1107.5 1102.8 1222.4 1225.9 1998 1202.1 1150.0 - - - - - 1128.1 - 1126.8 1095.0 1168.4 1999 1191.5 1193.0 - - - - - - - 1008.5 1081.8 1117.3 2000 1151.1 1164.9 - - - - - - - 1089.7 1166.5 1280.4 2001 1235.4 1225.3 - - - - - 1154.0 - 1062.7 1114.9 1145.0 2002 1196.5 1119.4 - - - - - 1084.2 - 1204.0 1163.2 1146.1 2003 1254.7 1221.0 - - - - - - 1095.0 1080.8 1164.0 1278.4 2004 1205.3 1266.0 - - - - - 1100.5 - 1122.4 1132.4 1258.3 2005 1223.0 1140.5 - - - - - - - 1070.9 1147.2 1300.5 2006 1222.0 1194.8 - - - - - - - 1083.9 1143.1 1187.9 2007 1233.0 1188.1 - - - - - - - 1131.0 1159.6 1122.2 2008 1170.5 1131.4 - - - - - - 1063.1 1075.0 1132.8 1164.6 2009 1162.2 1199.7 - - - - - - - 1074.2 1171.2 1173.3 2010 1274.1 1248.6 - - - - - 1029.2 1138.2 1074.5 1087.9 1223.1 2011 1231.5 1172.0 - - - - - 1068.7 - 1089.3 1189.0 1123.8 2012 1126.8 1171.6 - - - - - 1132.9 - 1090.3 1181.4 1222.0 2013 1196.4 1110.1 - - - - - - - 1118.6 1123.4 1182.9 2014 1245.7 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - 1115.7 1084.5 1166.3 2018 1168.3 1139.5 - - - - - - - 1062.0 1085.6 1151.4 2019 1173.7 1185.5 - - - - - 1062.5 994.0 1108.5 1215.0 1243.8 2020 1220.8 1158.2 - - - - - - - 1048.8 1114.4 1120.8 2021 - 1104.1 1151.1 - - - - 1120.3 - 1097.6 1084.9 1095.6 2022 1157.6 1173.3 - - - - 1063.4 1069.4 - 1105.0 1077.8 1107.2 2023 1124.9 1153.5 - - - - - 1110.2 1091.0 1064.4 1122.2 1126.2 2024 1154.2 1153.0 1135.9 1046.2 - - - - - - - -