1979 2023 1979 1.01533 0.70502 0.17286 -0.15151 -0.09556 -1.12730 -0.87678 0.65850 -0.36576 -0.02439 -0.21269 0.34097 1980 -0.73733 -0.46183 0.41208 -0.33693 0.75912 -0.13139 0.56630 -0.97505 0.10593 -0.08550 0.35061 -0.83272 1981 -0.59035 0.38788 0.81679 0.71754 -0.68481 -0.49371 -0.42197 0.31676 -0.91030 -0.57056 -0.84225 -0.21343 1982 -0.66956 -0.31302 -0.17107 -0.16953 -0.04837 0.43734 2.21935 1.64897 1.88772 1.94788 2.95648 1.96181 1983 2.46852 2.05954 1.54509 1.43562 1.53672 1.42148 -1.06271 -0.05397 -0.52924 -0.72171 -0.56305 -0.85765 1984 -1.25177 -1.33421 -0.85274 -1.43883 -1.61688 -1.12579 -0.99987 -1.28313 -1.36597 -0.66674 0.11030 -0.60780 1985 -0.06814 -0.86248 0.13296 -0.87846 -1.27089 -0.65110 -0.50059 -0.52678 -0.86167 -0.51608 -0.69526 -0.29472 1986 -1.19314 -0.54349 -1.61581 -1.08110 0.21204 -0.20274 -0.03018 0.07082 0.02135 0.07670 0.13686 1.80845 1987 0.51243 1.10648 1.52377 2.01767 2.14975 1.30243 2.21963 0.76478 1.73081 0.80438 0.31182 0.33941 1988 0.04456 0.06427 -0.83400 0.49703 -0.81966 -0.74217 -0.58217 -1.22153 -1.19459 -1.09863 -1.85008 -0.87337 1989 -0.78329 -0.86944 -0.76500 -0.65488 -0.72076 -0.00997 -0.22140 -0.77784 0.00471 -0.70657 -0.24894 0.25851 1990 0.09334 0.98115 0.74089 0.48188 0.17294 -0.53726 0.30840 0.36216 -0.03950 -0.16341 0.28412 0.72101 1991 -0.01650 -0.07319 0.62531 -0.02790 0.77713 1.27460 0.83845 0.95747 0.90521 0.70264 1.52343 0.59275 1992 2.36302 1.62374 2.57237 1.66474 1.71646 0.84234 0.03925 -0.11165 0.43427 -0.90982 0.62404 0.35649 1993 0.16607 0.70837 0.70548 1.33938 1.11693 0.73234 0.20988 0.57853 0.15500 0.77563 0.17294 0.15359 1994 0.12552 -0.13718 -0.81079 0.26879 0.16057 0.59798 1.02119 0.70690 1.27871 1.27880 0.84742 1.14523 1995 0.34518 -0.09856 -0.51966 0.38868 0.13914 -0.09679 -0.17231 -1.37162 -1.14092 -0.51376 -1.21603 -0.90780 1996 -0.98519 -1.22801 -0.22198 -0.63879 -0.41190 -0.16137 -0.42737 -0.51051 -0.43937 -0.96602 -0.63504 -1.05080 1997 0.17659 -0.89825 1.26246 1.24804 2.13609 3.53095 1.95745 2.99355 3.06050 3.20304 2.13268 2.28455 1998 2.47553 1.96814 1.34651 1.11937 1.01023 -0.88174 -0.27011 -0.97050 -1.17287 -1.01313 -1.08407 -0.98407 1999 -1.14810 -0.80235 -0.97757 -1.69740 -1.31440 -0.60652 -0.96072 -1.30330 -0.29173 -0.92281 -0.73938 -1.06910 2000 -1.00105 -0.95071 -0.75159 -0.98210 -0.69274 -1.62835 0.04638 -1.16031 0.28711 -1.17446 -0.70760 -0.47222 2001 -0.93738 -1.09959 -0.97516 -0.86644 -0.17695 -0.97573 0.47214 -0.17648 0.09751 -0.39585 -0.74356 0.37255 2002 -0.05427 0.60475 0.27341 -0.12602 0.21128 0.44943 1.70256 0.93982 1.77720 1.50342 0.91197 1.52927 2003 0.81898 0.22479 -0.05283 0.30221 -0.29548 1.09819 -0.46642 -0.05095 -0.55743 -0.36216 0.08533 -0.42965 2004 0.28436 -0.13191 0.03492 0.96500 -1.51531 0.38996 -0.01871 1.56144 -0.01903 0.38020 0.53607 0.37089 2005 -0.09497 1.11161 -0.09212 -0.07704 0.14563 0.34321 -0.74921 -0.05716 -0.47353 -0.50651 -0.85052 -1.16222 2006 -0.61427 -0.88454 -0.89015 -1.05275 -0.17708 -0.77521 0.44214 0.34117 0.09993 1.34597 1.55183 0.42455 2007 0.21564 0.09137 -0.21103 -0.38787 -0.19556 -0.70667 -1.40595 -0.61157 -0.95129 -0.45497 -0.78811 -0.98459 2008 -0.25471 -1.18351 -1.10377 -1.30726 -0.68151 -0.88290 -0.84032 -0.79975 -0.48213 -0.88310 -1.16974 -1.16012 2009 -0.68740 -0.96414 -0.69954 -0.86938 -0.63202 0.29816 0.32415 0.87152 0.28839 0.71448 -0.24659 1.21623 2010 1.00578 2.00625 0.62486 0.66273 -0.18582 -0.80504 -1.17543 -1.68569 -1.16834 -1.38906 -0.82952 -0.99563 2011 -0.95504 -0.97688 -1.66771 -1.10085 -0.94569 -1.14128 -0.42466 -0.04856 -0.73505 -0.23490 -0.44671 -1.29060 2012 -0.73538 -0.52528 -1.37498 -0.40796 -1.03549 -0.55555 -0.67690 0.27935 0.04974 0.17407 -0.19069 -0.15243 2013 -0.48993 -0.78834 0.28683 0.87562 -0.87263 -0.71650 -2.05964 -0.74688 -0.75063 -0.18233 -0.45609 -0.80907 2014 -0.30051 0.45847 0.77458 1.30984 0.66205 0.50777 0.11128 0.14441 0.21027 0.55725 0.15872 -0.36161 2015 -0.00903 -0.03070 0.95037 1.24429 3.02095 1.59968 3.76707 2.32905 2.18597 2.30534 0.95270 2.05867 2016 2.26359 1.73267 1.18154 0.98914 0.07251 -0.50999 -0.95807 -0.31014 -1.35389 -1.22303 -0.48794 -0.66701 2017 -1.00061 -0.64087 -0.76160 -0.42776 -1.01931 -0.76059 -1.37817 -0.50408 -1.37199 -0.67286 -1.13442 -0.71703 2018 -0.84826 -0.24240 -0.47027 -0.31920 -0.11709 0.17841 -0.05495 0.10955 0.11905 0.26692 0.36731 0.28784 2019 0.19336 1.28877 1.02280 0.30068 1.10183 -0.31736 0.75425 0.59580 1.11256 0.27144 1.02508 0.45743 2020 0.42295 0.65455 -0.09639 -0.69421 -0.52105 -0.69097 -1.05615 -0.48873 -0.70276 -1.30303 -0.90166 -0.89833 2021 -1.159 -0.53245 -0.91295 -0.44219 -1.18542 0.28266 -0.60340 -0.92122 -1.25097 -0.56268 -1.20190 -1.42537 2022 -0.33326 -1.21816 -0.89207 -1.12360 -0.90473 -0.64836 -1.83128 -1.23034 -1.16183 -1.19816 -0.79040 -1.25044 2023 -1.04023 -0.79429 -0.50327 -0.14821 0.09335 0.26547 -0.24402 1.00887 0.80097 1.31229 -999.000 -999.000 -999.0 ESPI From UMD http://eagle1.umd.edu/GPCP_ICDR/Data/ESPI.txt Stored at NOAA/PSL Values are now based on V2.3 updated with new values froim source. Recent older values subject to change