Gough 12Z 300hPa height 1966 - - - - - - 9037.3 - - - - - 1967 - - - - 9130.5 9100.7 9112.1 9098.3 - - - - 1968 - 9486.8 - - - - - - 9127.9 - - 9284.2 1969 - 9419.9 - - - 9197.0 - - - 9284.9 9356.5 - 1970 - - 9393.2 9342.0 9166.1 9122.4 9099.6 9190.7 9135.1 9238.5 9328.4 9275.9 1971 - 9513.1 9339.1 9319.9 9253.9 9126.7 9093.5 9094.5 9201.7 - 9271.3 - 1972 - 9453.0 9379.7 9255.8 - - 9276.8 9214.8 - - - - 1973 9434.3 9414.2 9405.0 9318.1 9272.2 9245.8 9066.7 9118.8 - 9210.0 9300.7 9369.2 1974 9433.0 9403.2 9375.0 9254.7 9139.6 9159.0 9053.2 9046.5 9144.2 9201.9 9281.3 9306.1 1975 9446.3 9371.1 9414.6 9291.2 9126.2 9085.3 9101.2 9189.4 9120.0 9152.4 9300.5 9428.8 1976 9393.5 9442.9 9492.4 9298.3 9240.4 9130.8 9220.4 9205.7 9184.4 9301.9 9302.2 9219.2 1977 9389.0 9399.5 9484.0 9282.9 9334.2 9176.3 9074.4 9102.5 9228.1 9223.3 9331.4 9247.7 1978 9450.7 9475.9 9375.2 9378.9 9201.1 9128.6 9216.8 9184.1 9210.0 9230.0 9287.5 9273.8 1979 9409.5 9384.8 9361.5 9282.4 9296.4 9124.8 9156.0 9223.7 9270.8 9255.9 9310.5 9281.7 1980 9448.6 9470.0 9347.8 9350.7 9167.1 9277.0 9118.1 9120.7 9188.3 9224.0 9404.1 9319.6 1981 9448.7 9443.3 9441.9 9249.6 9146.3 9189.7 9046.4 9186.0 9084.8 9156.2 9327.3 9462.4 1982 9376.3 9497.4 9469.0 9380.7 9102.6 9095.0 9225.2 9147.7 9150.7 9217.7 9271.0 9221.6 1983 9298.7 9481.9 9492.0 9270.7 9156.0 9160.3 9217.6 9090.0 9041.0 9304.6 9332.6 9284.3 1984 9295.5 9389.7 9410.6 9276.2 9162.9 9131.7 9104.5 9109.4 9045.4 9250.0 9290.0 9315.5 1985 9336.3 9369.6 9408.0 9329.3 9217.4 9041.7 9115.7 9089.7 9094.8 9165.7 9167.7 9375.4 1986 9364.7 9417.0 9426.1 9291.0 9163.5 9152.4 9075.5 9158.3 9151.1 9118.7 9345.4 9387.7 1987 9321.0 9388.9 9389.0 9270.3 9168.7 9170.0 9165.2 9126.7 9184.4 9167.6 9272.9 9341.4 1988 9398.9 9428.2 9271.3 9382.1 9139.0 9106.2 9134.1 9122.3 9030.0 9242.0 9352.0 9370.3 1989 9370.0 9405.4 9311.2 9364.3 9129.3 9202.4 9116.8 9071.0 9067.6 9190.3 9310.7 9377.5 1990 9358.9 9380.0 9392.3 9285.0 9185.8 9290.7 9093.2 9178.2 9208.1 9264.6 9277.3 9322.3 1991 9425.0 9401.9 9485.0 9241.4 9194.2 9148.6 9164.2 9201.9 9144.7 9198.3 9291.4 9220.7 1992 9378.1 9333.6 9363.9 9199.7 9258.7 9157.6 9065.5 9166.1 9230.0 9230.0 9261.6 9316.1 1993 9302.3 9328.9 9314.2 9302.9 9209.4 9133.7 8996.5 9100.3 9034.0 9132.9 9232.3 9429.3 1994 9436.5 9400.0 9345.5 9283.3 9177.7 9178.3 9204.8 9214.2 9124.7 9177.1 9217.7 9255.8 1995 9322.9 9356.4 9395.5 9333.0 9242.3 9185.3 9168.7 8978.1 9140.7 9204.5 9297.0 9324.2 1996 9412.3 9375.2 9349.3 9260.3 9157.3 9032.7 9100.0 9021.7 9079.3 9237.0 9257.7 9331.0 1997 9418.7 9468.2 9418.1 9378.0 9198.1 9096.8 9132.9 9162.9 9054.0 9179.6 9185.0 9282.9 1998 9427.3 9424.2 9399.6 9227.4 9074.7 9024.1 9243.9 9113.5 9181.8 9266.5 9255.9 9385.7 1999 9372.3 9470.7 9298.0 9276.3 9243.3 9027.3 8951.3 9092.8 9138.9 9201.0 9239.0 9379.1 2000 9374.1 9419.6 9348.5 9284.0 9233.7 9072.0 9141.7 9118.2 9011.8 9227.2 9193.0 9389.6 2001 9388.9 9409.2 9334.6 9316.4 9137.9 9090.3 9117.7 9192.0 9151.4 9222.1 9299.3 9361.1 2002 9375.4 - 9316.2 9198.3 9211.2 9186.9 9076.3 9156.0 9132.9 9112.1 9288.9 9284.6 2003 9354.0 9316.1 9375.2 9190.7 9187.2 9137.6 9118.7 9130.4 9157.4 9213.8 9280.9 9356.8 2004 9407.1 9403.2 9381.7 9253.1 9229.3 9114.2 9260.0 9158.0 9182.7 9262.3 9195.4 9255.2 2005 9401.4 9460.8 9361.3 9309.0 9206.3 9194.1 9091.9 9116.5 9162.9 9111.3 9254.5 9398.3 2006 - 9319.4 9440.3 9400.3 9261.3 9171.4 9022.8 9068.9 9196.3 9205.3 9292.3 9318.7 2007 9364.2 9439.3 9392.1 9267.9 9210.0 9058.3 9101.0 9075.8 9018.8 - - - 2008 9447.5 9399.4 9406.7 9292.9 9086.0 9086.8 9025.5 9158.5 8998.0 9165.0 9287.8 9367.5 2009 9388.1 9494.2 9379.0 9333.6 - - 9282.5 9025.9 9183.5 9257.6 9187.0 9331.4 2010 9423.6 9410.7 9421.7 9342.9 - - - 9063.6 9188.1 9192.6 9318.0 9408.7 2011 9437.8 9389.1 9325.7 9404.2 9237.4 9138.3 9219.0 8986.9 9128.9 9157.6 9322.1 9342.5 2012 9340.9 - - - - - - - - 9305.5 - - 2013 - - 9385.2 9277.9 - - - - 9193.0 9316.9 9266.2 9341.4 2014 9376.1 9415.0 9506.0 9325.4 9118.1 9164.2 9249.0 - 9059.5 9249.6 9368.5 9423.3 2015 9369.3 9446.5 9392.2 9333.6 9164.5 9215.5 9314.4 - 9078.1 9133.5 9279.7 9315.2 2016 9425.2 9408.6 9421.6 9260.4 - 9081.9 9128.2 9043.3 9178.9 9168.8 9287.4 9215.0 2017 9370.6 9437.8 9398.2 9314.1 9216.1 9116.0 9134.1 9222.2 9173.2 9269.1 9311.5 9373.3 2018 9438.8 9456.1 9420.0 9258.9 9154.8 9041.9 9045.6 9231.3 9104.8 9174.7 9299.2 9255.8 2019 9453.8 9458.3 9408.6 9263.2 9165.4 9050.0 - - - - - - 2020 - - - - - - - - - 9178.9 9240.9 9420.4 2021 9375.7 9501.5 9338.9 9297.5 9227.5 9163.9 9096.0 9084.7 9126.1 9224.0 9280.7 9440.6 2022 9370.5 9427.5 9406.7 - - - - - 9133.3 9244.6 - - 2023 - - - - - - - - - 9265.9 9152.6 9393.3 2024 9420.9 9459.2 9394.0 9407.3 - - - - - - - -