Casey 00Z 300hPa height 1957 - - - 8507.0 8439.8 8458.7 8304.7 8298.0 8228.4 8409.6 8480.1 8646.7 1958 8627.7 8518.1 8455.2 8380.2 8514.2 8328.4 8404.1 8203.7 8185.7 8297.3 8391.7 8514.8 1959 8583.7 8552.8 8579.3 8482.1 8413.9 8339.6 8267.0 8324.3 8111.1 8360.4 8313.7 8642.9 1960 8561.6 8540.4 8310.4 8363.7 8353.1 8284.1 8240.0 8259.6 8180.7 8315.0 8429.6 8529.7 1961 8613.2 8709.0 8474.6 8415.0 8414.1 8415.0 8258.2 8344.1 8381.8 8356.7 8486.2 8454.0 1962 8495.5 8506.9 8423.8 8365.7 8345.7 8366.0 8199.6 8208.2 8237.1 8283.9 8501.2 8480.8 1963 8596.1 8469.3 8421.3 8352.0 8450.4 8338.0 8290.9 8456.1 8267.5 8246.8 8386.9 8592.3 1964 8651.7 8569.6 8466.6 8359.0 8272.1 8532.7 8484.7 8399.6 8177.3 8289.0 8526.2 8654.8 1965 8644.7 8658.5 8435.0 8448.2 8399.3 8273.0 8238.9 8255.6 8199.6 8245.8 8367.3 8684.1 1966 8577.2 8633.2 8558.6 8359.3 8452.3 8321.3 8444.5 8117.2 8292.3 8267.7 8473.0 8636.8 1967 8764.4 8569.3 8460.4 8433.2 - 8396.8 8363.6 8232.6 8245.9 8229.6 8552.0 8582.8 1968 8615.2 8531.7 8516.2 8416.4 8394.2 8384.8 8247.8 8222.0 8225.0 8365.2 8509.3 8543.4 1969 8663.9 8579.4 - 8400.0 8297.9 8429.0 8171.7 8151.0 8225.6 8359.3 8400.7 8561.3 1970 8629.4 8516.4 8541.4 8517.7 8467.9 8469.2 8308.3 8233.8 8410.7 8320.3 8457.4 8663.8 1971 8700.0 8617.6 8372.4 8445.0 8464.1 8265.0 8305.0 8333.3 8378.1 8352.7 8480.3 8671.3 1972 8648.2 8545.4 8494.3 8448.2 8325.3 8410.0 8322.8 8423.6 8243.2 8255.0 8404.3 8596.1 1973 8640.7 8502.7 8416.3 8451.3 8541.3 8443.9 8238.6 8193.6 8362.6 8361.0 8490.3 8498.4 1974 8606.0 8561.9 8384.0 8394.5 8347.9 8422.1 8315.0 8432.1 8190.0 8401.9 8518.5 8654.5 1975 8674.6 8570.0 8547.2 8330.7 8494.0 8404.1 8437.3 8189.7 8204.8 8337.4 8433.3 8580.0 1976 8692.6 8563.1 8486.1 8378.0 8313.3 8374.1 8267.9 8265.9 8239.2 8298.4 8530.7 8740.8 1977 8694.8 8582.1 8466.2 8363.6 8404.3 8389.3 8328.1 8283.1 8078.9 8227.4 8423.4 8590.4 1978 8539.4 8540.7 8488.7 8400.0 8418.4 8402.0 8345.9 8124.1 8193.3 8257.7 8503.0 8656.3 1979 8581.3 8568.9 8398.9 8408.2 8341.7 8276.4 8221.1 8240.8 8238.6 8327.7 8523.0 8653.2 1980 8641.5 8550.0 8483.8 8497.9 8352.5 8309.6 8447.2 8363.4 8310.7 8285.3 8513.0 8555.2 1981 8589.7 8578.1 8521.3 8405.5 8351.3 8429.3 8330.0 8432.2 8274.4 8234.6 8454.3 8546.8 1982 8611.0 8547.6 8367.1 8251.9 8354.5 8293.9 8422.3 8118.7 8155.2 8345.5 8522.0 8694.5 1983 8645.5 8562.2 8478.9 8429.0 8422.9 8404.3 8230.7 8302.5 8282.3 8269.3 8352.1 8515.2 1984 8694.8 8535.5 8457.3 8493.0 8448.7 8269.6 8271.0 8345.2 8213.0 8223.0 8487.9 8720.0 1985 8711.6 8531.4 8466.8 8459.0 8370.3 8438.9 8163.4 8276.5 8204.5 8267.4 8357.6 8556.8 1986 8592.9 8724.4 8533.5 8404.7 8472.3 8351.9 8300.3 8212.3 8244.7 8296.5 8418.7 8547.1 1987 8712.9 8593.7 8492.6 8393.3 8309.0 8339.6 8361.4 8132.6 8200.7 8296.9 8393.8 8567.7 1988 8676.1 8503.1 8529.1 8436.1 8536.9 8501.3 8276.9 8314.0 8407.0 8431.0 8453.0 8513.7 1989 8615.2 8527.7 8428.4 8423.2 8225.2 8304.8 8256.2 8364.3 8354.2 8388.6 8424.7 8776.8 1990 8675.8 8543.9 8515.8 8592.8 8514.5 8359.2 8418.6 8251.0 8189.3 8358.1 8487.3 8647.7 1991 8522.4 8612.4 8516.5 8466.5 8375.5 8457.7 8516.5 8325.3 8209.4 8254.5 8537.3 8632.2 1992 8644.1 8638.7 8533.0 8357.6 8466.2 8519.4 8306.1 8300.3 8135.0 8322.0 8433.7 8515.1 1993 8636.4 8519.3 8500.3 8347.8 8233.2 8264.6 8229.9 8157.8 8235.1 8239.4 8372.8 8472.8 1994 8621.3 8487.4 8424.7 8350.5 8394.7 8560.8 8349.0 8208.8 8361.6 8290.7 8497.1 8450.2 1995 8542.5 8523.7 8485.5 8412.2 8321.6 8387.2 8631.5 8333.1 8185.5 8301.8 8514.1 8555.1 1996 8642.2 8585.1 8436.2 8463.8 8287.4 8487.0 8398.0 8396.3 8425.6 8310.1 8497.6 8566.7 1997 8571.7 8541.1 8460.1 8364.6 8384.9 8404.3 8210.8 8224.2 8221.5 8308.2 8535.4 8607.3 1998 8544.5 8547.2 8430.9 8297.7 8280.1 8349.6 8296.6 8349.1 8279.7 8291.4 8484.8 8452.0 1999 8524.2 8630.1 8493.5 8298.1 8283.4 8435.9 8277.9 8267.5 8274.3 8265.3 8419.3 8456.5 2000 8538.9 8513.8 8449.3 8496.7 8286.8 8396.0 8337.2 8294.1 8400.6 8229.3 8546.7 8636.8 2001 8633.7 8703.7 8504.5 8332.9 8428.9 8332.5 8332.8 8211.7 8225.0 8317.6 8443.0 8621.6 2002 8563.0 8519.7 8635.3 8446.3 8576.3 8462.5 8397.4 8248.9 8324.0 8458.4 8427.1 8562.6 2003 8691.1 8745.8 8517.6 8379.8 8360.9 8427.3 8280.8 8212.7 8310.6 8308.4 8471.9 8653.5 2004 8650.9 8574.4 8423.2 8345.7 8422.7 8313.4 8206.8 8329.3 8158.5 8347.4 8507.6 8637.7 2005 8620.8 8515.3 8534.8 8278.0 8439.1 8469.5 8309.5 8238.2 8317.5 8324.1 8426.4 8739.1 2006 8583.3 8524.7 8449.8 8471.7 8193.0 8296.1 8232.0 8371.3 8337.1 8267.0 8468.1 8510.6 2007 8645.8 8528.0 8496.8 8479.4 8524.2 8483.4 8495.3 8354.3 8339.5 8321.9 8507.6 8475.9 2008 8512.8 8520.6 8452.0 8471.6 8434.2 8282.1 8303.6 8231.7 8183.5 8239.8 8516.5 8548.1 2009 8559.9 8593.0 8481.5 8418.7 8404.4 8387.4 8472.6 8314.0 8364.0 8308.1 8484.6 8517.0 2010 8662.1 8604.5 8512.6 8401.1 8319.0 8314.4 8184.6 8185.2 8357.8 8277.9 8383.4 8648.5 2011 8691.2 8460.3 8534.2 8447.0 8357.0 8352.5 8548.1 8377.8 8351.8 8226.5 8498.9 8418.6 2012 8528.3 8529.8 8442.6 8447.8 8324.2 8386.4 8177.3 8216.9 8203.4 8353.5 8525.6 8575.8 2013 8646.4 8536.1 8378.8 8350.2 8366.6 8429.5 8313.7 8326.4 8507.8 8341.2 8547.4 8547.7 2014 8627.8 8559.4 8460.3 8333.1 8463.8 8318.3 8257.9 8211.5 8333.3 8302.7 8538.6 8484.8 2015 8594.7 8475.9 8426.1 8324.7 8299.3 8376.3 8245.0 8279.3 8244.1 8262.8 8448.8 8560.3 2016 8535.7 8471.1 8387.6 8406.3 8395.5 8233.8 8292.3 8309.6 8157.5 8347.7 8502.0 8608.4 2017 8657.6 8605.4 8475.3 8353.8 8412.4 8279.6 8350.7 8235.5 8223.3 8320.0 8453.8 8558.0 2018 8558.4 8539.3 8440.3 8502.7 8351.0 8408.3 8353.1 8314.2 8191.0 8215.3 8359.0 8487.2 2019 8526.1 8598.6 8444.2 8438.2 8396.6 8342.6 8389.4 8354.1 8242.8 8379.0 8577.7 8658.7 2020 8662.0 8566.2 8385.7 8502.4 8410.0 8341.5 8436.5 8425.4 8397.4 8376.1 8469.3 8480.3 2021 8513.9 8518.6 8504.0 8359.0 8346.1 8275.9 8360.7 8319.6 8293.7 8430.7 8342.0 8593.3 2022 8529.7 8532.1 8397.9 8368.6 8445.2 8521.8 8320.3 8337.7 8281.2 8403.7 8314.3 8486.8 2023 8488.1 8554.3 8519.7 8451.0 8284.8 8419.3 8265.2 8161.3 8387.0 8316.5 8405.3 8511.3 2024 8560.0 8487.2 8437.3 8348.7 - - - - - - - -