Amundsen_scott 12Z 300hPa height 1961 8454.8 8445.4 8283.9 8284.6 8288.1 8258.4 8073.3 8121.7 8234.3 8164.3 8316.1 8348.4 1962 8405.1 8396.4 8222.6 8194.2 8172.9 8278.1 8008.8 8060.4 8127.2 8131.4 8336.9 8374.0 1963 8442.2 - - - - - - - - - 8232.2 8458.6 1964 8512.9 - - - - - - - - - 8389.6 8438.0 1965 - - - - - - - - - - 8233.2 8504.6 1966 8463.9 - - - - - - - - - 8373.8 8500.2 1967 8627.5 8495.5 - - - - - - - - 8364.7 8491.1 1968 8474.6 8492.7 - - - - - - - - 8361.3 8433.4 1969 8554.1 8380.5 - - - - - - - 8253.0 8297.8 8452.6 1970 8507.9 8390.3 - - - - - - 8220.2 - 8271.8 8491.6 1971 8589.0 8428.4 - - - - - - - 8166.2 8354.6 8511.3 1972 8554.5 8439.9 - - - - - - - 8205.1 8293.8 8452.4 1973 8528.7 8346.6 - - - - - - - 8253.0 8389.9 8346.9 1974 8519.6 8361.5 - - - - - - - 8251.1 8403.2 8591.6 1975 8543.8 - - - - - - - - 8199.5 8351.1 8546.8 1976 8592.7 - - - - - - - - 8090.7 8365.8 8665.1 1977 8678.3 8443.3 - - - - - - - 8143.7 8247.8 8472.9 1978 8468.9 8482.3 - - - - - - - 8251.5 8394.3 8530.3 1979 8566.7 8464.2 - - - 8228.9 - - - 8200.0 8414.8 8519.2 1980 8576.2 - - - - - - - - 8246.0 8485.0 8523.5 1981 8562.4 8458.2 - - - - - - - 8254.0 8287.5 8495.9 1982 8549.6 - - - - - - - - 8163.5 8434.3 - 1983 8524.0 - - - - - - - - - 8286.7 8482.3 1984 8604.8 8480.0 - - - - - - - - 8360.7 8568.8 1985 8595.2 8373.0 - - - - - - - - 8225.0 8406.4 1986 8605.8 8569.6 - - - - - - - 8158.4 8291.2 8452.2 1987 8674.0 8452.2 - - - - - - - - 8333.4 8489.1 1988 8564.1 8405.2 - - - - - - - - 8349.9 8447.9 1989 8536.2 8472.0 - - - - - - - - 8407.0 8568.1 1990 8548.3 8396.9 - - - - - - - 8269.1 8619.0 8542.6 1991 8520.0 8566.4 - - - - - - - 8209.9 8359.7 8664.2 1992 8530.3 8490.4 - - - - - - - 8285.6 8304.4 8466.5 1993 8622.3 8404.8 - - - - - - - 8180.8 8387.4 8419.4 1994 8545.1 8364.2 - - - - - - - 8206.4 8401.1 8432.8 1995 8454.6 8414.4 - - - - - - - - 8416.8 8465.6 1996 8529.1 8542.3 - - - - - - - - 8491.7 8551.9 1997 8526.6 8439.6 - - - - - - - - 8528.8 8491.7 1998 8538.7 8516.5 - - - - - - - - 8327.9 8463.0 1999 8646.7 8491.5 - - - - - - - 8155.4 8332.1 8380.1 2000 8426.4 8452.3 - - - - - - - 8170.6 8485.9 8558.3 2001 8519.1 8554.3 - - - - - 8160.5 - 8168.6 8368.2 8481.7 2002 8548.2 8395.5 - - - - - 8083.2 - 8343.5 8336.9 8409.9 2003 8614.9 8483.8 - - - - - - 8206.5 8209.4 8322.6 8605.0 2004 8514.3 8434.9 - - - - - - - 8238.2 8292.5 8557.6 2005 8609.4 8454.2 - - - - - - - 8246.7 8319.7 8653.7 2006 8520.7 8434.4 - - - - - - - 8149.3 8382.3 8385.8 2007 8593.3 8389.2 - - - - - - - 8223.9 8367.6 8417.3 2008 8456.5 8336.7 - - - - - - 8234.5 8196.6 8290.1 8427.1 2009 8471.8 8390.4 - - - - - 8091.8 - 8197.1 8426.9 8458.9 2010 8597.2 8513.6 - - - - - 8154.8 8171.4 8241.0 8292.2 8544.0 2011 8554.4 8496.1 - - - - - 8358.5 - 8277.6 8515.9 8445.8 2012 8416.2 8442.3 - - - - - 8130.9 - 8230.0 8434.4 8550.8 2013 8567.8 8340.5 - - - - - - - 8280.8 8345.2 8504.3 2014 8545.5 8386.4 - - - - - - - 8246.1 8348.9 8447.6 2015 8516.1 8439.1 - - - - - 8019.1 - 8259.0 8338.0 8480.5 2016 8462.8 8442.4 - - - - - 8208.0 - 8221.1 8479.5 8536.2 2017 8598.7 8491.3 - - - - - - - 8379.1 8366.7 8446.0 2018 8582.5 8407.3 - - - - - - - - 8378.5 8564.1 2019 8491.9 8506.9 - - - - - - - 8247.5 8521.1 8576.8 2020 8545.6 8492.7 - - - - - - - - 8317.1 8421.8 2021 - 8395.6 8354.2 - - - - - - 8239.6 8312.1 8387.1 2022 8509.5 8489.5 - 8246.8 - 8317.0 - 8203.2 - 8303.3 8252.3 8417.9 2023 8421.3 8437.4 - - - - - 8082.5 8250.0 8196.8 8341.0 8443.2 2024 8463.5 8413.2 8296.0 - - - - - - - - -