Davis 12Z 150hPa height 1971 - - - - - - - - - 12531.3 12892.1 13235.2 1972 13282.4 13161.7 13036.6 - - - - - - - - 13173.5 1973 13227.3 13133.7 12962.7 - - - - - - 12548.9 12787.2 12876.0 1974 13181.0 13153.0 12944.8 - - - - - - 12585.9 12927.7 13192.4 1975 13290.7 13181.9 13094.5 - - - - - - - 12802.1 13137.4 1976 - 13154.1 12996.1 - - - - - - 12384.2 12947.1 13279.4 1977 13276.5 13139.3 12958.4 - - - - - - 12608.5 12775.2 13096.7 1978 13047.3 - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 - - 12995.7 12807.5 12511.7 12473.1 12355.7 12399.0 12391.9 12494.2 12754.0 13189.0 1990 13222.9 13166.1 13005.7 12943.2 12806.9 12508.9 12658.0 12279.3 12211.0 12567.1 12755.0 13041.6 1991 13091.6 13121.4 13026.2 12832.6 12672.9 12672.0 12584.8 12415.8 12386.1 12489.9 12751.2 13248.1 1992 13198.9 13186.3 13000.0 12824.7 12800.0 12715.5 12430.5 12286.7 12247.4 12443.8 12764.4 12925.0 1993 13204.0 13087.8 12927.0 12766.2 12551.3 12394.8 12383.5 12247.4 12323.6 12440.0 12659.6 12918.8 1994 13127.3 13031.8 12874.2 12811.7 12677.5 - 12476.7 12283.4 12333.6 12468.1 12912.9 12975.3 1995 13106.4 13129.5 12963.3 12901.1 12600.5 12483.5 12610.4 12363.3 12241.5 12475.0 12749.9 12907.3 1996 13124.0 13127.7 12968.3 12841.8 12520.0 12616.6 12449.1 12472.0 12614.3 12457.7 12757.3 13081.5 1997 13193.2 13140.9 12939.7 12830.3 12621.4 12547.5 12256.7 12348.6 12286.2 12451.4 12881.0 13098.4 1998 13114.9 13070.0 12940.6 12671.5 12568.8 12533.4 12414.8 12304.8 12403.0 12450.3 12623.8 12820.9 1999 13083.5 13094.4 12956.5 12658.8 12608.4 12641.2 12333.4 12300.8 12402.5 12363.3 12640.2 12702.7 2000 13050.8 13052.3 12893.5 12858.2 12564.2 12617.4 12398.1 12339.9 12462.1 12422.2 12800.8 13184.7 2001 13215.4 13198.1 12988.9 12715.5 12674.5 12533.1 12421.8 12262.1 12283.8 12398.5 12561.8 12926.7 2002 13131.0 13070.6 13046.3 12855.0 12863.1 12616.7 12483.9 12336.7 12483.8 12825.3 12868.0 13090.0 2003 13249.5 13176.2 13003.4 12751.2 12617.5 12601.0 12370.4 12314.6 12392.2 12402.3 12764.4 13117.5 2004 13204.0 13197.7 12950.9 12809.6 12678.3 12519.5 - 12244.3 12276.6 12535.9 12779.3 - 2005 - - - - - - - - - - 12709.5 13227.8 2006 13128.9 13059.1 - - - - - - - - 12775.0 12830.5 2007 13116.3 13060.6 12986.6 12905.1 12731.8 12645.3 12552.5 12403.4 12353.2 12495.2 12747.7 12923.1 2008 13052.3 13035.8 - - - - - - - - - 13009.6 2009 13105.2 13162.6 - - - - - - - - 13031.2 13008.7 2010 13231.9 13203.4 12975.9 12769.8 12595.9 12385.8 12227.5 12236.4 12391.1 12431.2 12653.6 13016.7 2011 13241.8 13107.9 12963.6 12851.9 12650.8 12586.9 12543.0 12368.5 12407.1 12474.3 12845.9 12814.5 2012 13036.7 13114.5 12959.0 12846.0 12619.6 12496.0 12309.6 12338.7 12345.5 12536.5 - 13198.3 2013 13237.4 - - - - - - - - - 13092.4 13167.0 2014 13175.3 13120.6 12988.2 12731.4 12760.6 12514.8 12350.6 12258.2 12429.5 12488.2 12790.5 12927.3 2015 13146.9 - 12864.4 12720.3 12625.3 12486.0 12328.7 12279.7 12267.3 12457.2 12733.1 12873.2 2016 13021.8 13074.8 - - - - - - - - 12961.2 13111.0 2017 13233.3 13150.4 12974.3 12712.5 12622.9 12452.2 12440.7 12298.4 12362.1 12527.6 12773.6 13113.8 2018 13204.6 13185.2 13010.0 12916.0 12589.3 12612.6 12403.1 12440.7 12255.2 12390.7 12619.3 13071.0 2019 13122.0 13186.1 12995.3 12857.9 12644.8 12503.8 12447.1 12355.3 12406.7 12775.2 13047.7 13195.5 2020 13269.7 13151.8 12956.1 12873.1 12692.4 12517.2 12476.5 12446.3 12393.5 12451.0 12703.7 12836.0 2021 13042.3 13045.7 13024.3 12799.3 12573.2 12445.5 12431.4 12335.5 12339.3 12470.7 12645.7 12835.0 2022 13123.2 13062.6 12958.0 12774.7 12651.3 12642.1 12362.7 12379.7 12262.6 12476.5 12575.2 12768.1 2023 13038.1 13096.9 13070.0 12870.0 12629.2 12579.0 12416.8 12345.0 12441.4 12454.0 12602.3 12973.7 2024 13054.0 13060.0 12920.6 12767.7 - - - - - - - -