Table of
  1. T
  2. KAPLAN Indices NAf SST anomaly avOS
Additional Information

TimeSST anomaly
months since 1960-01-01degreeC
Jan 18560.00853477
Feb 1856-0.07852063
Mar 1856-0.1578316
Apr 1856-0.2344889
May 1856-0.09446197
Jun 18560.08922282
Jul 18560.1861456
Aug 18560.08443915
Sep 18560.07820511
Oct 18560.02348207
Nov 18560.04840527
Dec 18560.1716009
Jan 18570.2880524
Feb 18570.1283315
Mar 18570.171432
Apr 18570.2206641
May 18570.07638046
Jun 1857-0.04108982
Jul 18570.07650743
Aug 1857-0.07691352
Sep 1857-0.1481293
Oct 1857-0.4593613
Nov 1857-0.3511901
Dec 1857-0.4164463
Jan 1858-0.417971
Feb 1858-0.453656
Mar 1858-0.1886165
Apr 1858-0.01130665
May 1858-0.2216334
Jun 1858-0.5136768
Jul 1858-0.5189074
Aug 1858-0.2844782
Sep 1858-0.09881623
Oct 18580.04938899
Nov 18580.06851666
Dec 1858-0.04397145
Jan 1859-0.1844839
Feb 1859-0.0253713
Mar 18590.08504192
Apr 18590.08209055
May 1859-0.007293613
Jun 1859-0.1421302
Jul 1859-0.1198021
Aug 18590.08096242
Sep 18590.06164557
Oct 1859-0.02022568
Nov 1859-0.09578308
Dec 1859-0.1161039
Jan 1860-0.01557618
Feb 1860-0.2660205
Mar 18600.03271341
Apr 1860-0.1224754
May 18600.108714
Jun 18600.2740321
Jul 18600.2359819
Aug 18600.07035571
Sep 18600.1342458
Oct 18600.1727238
Nov 1860-0.05644716
Dec 18600.03736556
Jan 18610.002423524
Feb 1861-0.0445996
Mar 1861-0.04894369
Apr 18610.2633364
May 18610.2980954
Jun 18610.5578276
Jul 18610.6648211
Aug 18610.3752964
Sep 18610.1901476
Oct 18610.005758888
Nov 18610.04508146
Dec 18610.02964762
Jan 1862-0.174044
Feb 1862-0.3926428
Mar 1862-0.3714524
Apr 1862-0.4584584
May 1862-0.6155604
Jun 1862-0.4266031
Jul 1862-0.633841
Aug 1862-0.6193472
Sep 1862-0.6173077
Oct 1862-0.5451078
Nov 1862-0.4274032
Dec 1862-0.2895413
Jan 1863-0.009442546
Feb 18630.04329055
Mar 18630.1625871
Apr 18630.1504306
May 18630.08509064
Jun 1863-0.02993026
Jul 1863-0.2690559
Aug 1863-0.344125
Sep 1863-0.2560042
Oct 1863-0.2554471
Nov 1863-0.1574273
Dec 1863-0.08579125
Jan 1864-0.05801135
Feb 1864-0.1596745
Mar 1864-0.1387028
Apr 1864-0.09638088
May 1864-0.07417937
Jun 1864-0.03148644
Jul 18640.1890013
Aug 18640.3517857
Sep 18640.1143913
Oct 18640.01631076
Nov 18640.09371495
Dec 18640.1232317
Jan 18650.2418949
Feb 18650.2375137
Mar 18650.2234323
Apr 1865-8.4497163E-04
May 1865-0.09280694
Jun 18650.102588
Jul 1865-0.03962078
Aug 1865-0.192159
Sep 18650.02348663
Oct 18650.04258075
Nov 1865-0.04671001
Dec 1865-0.02691101
Jan 1866-0.05726101
Feb 18660.005001433
Mar 1866-0.01728806
Apr 1866-0.1397768
May 1866-0.01941781
Jun 18660.363934
Jul 18660.2400362
Aug 18660.3111876
Sep 18660.09693918
Oct 18660.06795204
Nov 18660.2377994
Dec 18660.3605884
Jan 18670.3117273
Feb 18670.3092398
Mar 18670.4064798
Apr 18670.2708567
May 18670.0447262
Jun 1867-0.09165492
Jul 1867-0.09160148
Aug 1867-0.1380903
Sep 1867-0.1186157
Oct 1867-0.1866397
Nov 18670.04759364
Dec 1867-0.1288297
Jan 1868-0.01098582
Feb 18680.06306078
Mar 18680.1014923
Apr 18680.2310834
May 18680.2838794
Jun 18680.5543689
Jul 18680.7291588
Aug 18680.3107002
Sep 1868-0.05675941
Oct 1868-0.2346526
Nov 1868-0.1571311
Dec 1868-0.1018009
Jan 1869-0.1989797
Feb 18690.1226091
Mar 18690.1550464
Apr 18690.2445261
May 18690.3264582
Jun 18690.2170125
Jul 18690.1911988
Aug 18690.04414526
Sep 1869-0.02563112
Oct 1869-0.076716
Nov 1869-0.001340429
Dec 18690.02557081
Jan 1870-0.03884401
Feb 18700.008264488
Mar 18700.1654955
Apr 18700.1105325
May 18700.3029479
Jun 18700.106951
Jul 18700.00152391
Aug 18700.0871401
Sep 1870-0.06135573
Oct 1870-0.04832743
Nov 18700.08257329
Dec 1870-0.002649384
Jan 1871-0.1177425
Feb 1871-0.16732
Mar 18710.04882434
Apr 18710.2379356
May 18710.2050359
Jun 18710.1055723
Jul 18710.2133406
Aug 18710.07713524
Sep 1871-0.1918672
Oct 1871-0.324467
Nov 1871-0.3109964
Dec 1871-0.2965333
Jan 1872-0.280367
Feb 1872-0.3872752
Mar 1872-0.2289701
Apr 1872-0.1547994
May 18720.1993665
Jun 18720.3715739
Jul 18720.3573408
Aug 18720.3227526
Sep 18720.4274045
Oct 18720.09202545
Nov 18720.02519279
Dec 1872-0.03273285
Jan 1873-0.02543901
Feb 1873-0.08860444
Mar 1873-0.01373754
Apr 1873-0.1476681
May 1873-0.1897978
Jun 1873-0.1994698
Jul 1873-0.1650738
Aug 1873-0.2010257
Sep 18730.05376443
Oct 18730.09976465
Nov 18730.1009471
Dec 18730.194966
Jan 18740.05547482
Feb 1874-0.08709258
Mar 1874-0.2653217
Apr 1874-0.2802186
May 1874-0.2432
Jun 1874-0.0807836
Jul 1874-0.2117973
Aug 1874-0.1781215
Sep 18740.2598885
Oct 18740.1211148
Nov 18740.03739924
Dec 1874-0.2741044
Jan 1875-0.1867129
Feb 1875-0.1877988
Mar 1875-0.03609758
Apr 18750.03931816
May 18750.0191958
Jun 18750.06343777
Jul 1875-0.1930277
Aug 18750.04096853
Sep 1875-0.03288502
Oct 1875-0.2099247
Nov 1875-0.3547712
Dec 1875-0.4535492
Jan 1876-0.5530748
Feb 1876-0.3776861
Mar 1876-0.4480967
Apr 1876-0.3369268
May 1876-0.2276302
Jun 18760.06167577
Jul 18760.2138328
Aug 18760.2825089
Sep 18760.0702422
Oct 1876-0.298712
Nov 1876-0.3493934
Dec 1876-0.53966
Jan 1877-0.6411786
Feb 1877-0.4462198
Mar 1877-0.2380771
Apr 1877-0.3035676
May 1877-0.01401038
Jun 1877-0.07378118
Jul 18770.01161157
Aug 1877-0.1595789
Sep 1877-0.3937314
Oct 1877-0.4903879
Nov 1877-0.4121242
Dec 1877-0.2971476
Jan 1878-0.1071854
Feb 1878-0.107896
Mar 1878-0.07743199
Apr 18780.0933193
May 18780.09157149
Jun 18780.2617716
Jul 1878-0.05640584
Aug 18780.1440713
Sep 18780.3454423
Oct 18780.1212886
Nov 18780.2914854
Dec 18780.3051957
Jan 1879-0.002103017
Feb 1879-0.02753084
Mar 1879-0.2523883
Apr 1879-0.3185691
May 1879-0.001668587
Jun 1879-0.1380999
Jul 1879-0.2687501
Aug 1879-0.35175
Sep 1879-0.2667563
Oct 18790.08966342
Nov 18790.005612098
Dec 18790.00878405
Jan 1880-0.1257292
Feb 1880-0.3070883
Mar 1880-0.3473029
Apr 1880-0.1490945
May 1880-0.1744113
Jun 1880-0.07053906
Jul 18800.2005135
Aug 18800.2162394
Sep 18800.2854184
Oct 18800.1868806
Nov 18800.03421549
Dec 1880-0.313822
Jan 1881-0.2018999
Feb 1881-0.3652324
Mar 1881-0.3229483
Apr 1881-0.3301751
May 1881-0.2536341
Jun 1881-0.2067307
Jul 1881-0.2966964
Aug 1881-0.4414328
Sep 1881-0.4883577
Oct 1881-0.3784827
Nov 1881-0.6717743
Dec 1881-0.3773939
Jan 1882-0.3882541
Feb 1882-0.2672914
Mar 1882-0.2772933
Apr 1882-0.4952796
May 1882-0.5567351
Jun 1882-0.2736351
Jul 1882-0.2192063
Aug 1882-0.09804936
Sep 1882-0.1014238
Oct 1882-0.1257305
Nov 1882-0.1979044
Dec 1882-0.15073
Jan 1883-0.4641353
Feb 1883-0.6551211
Mar 1883-0.6085498
Apr 1883-0.221313
May 1883-0.2055663
Jun 1883-0.1612065
Jul 1883-0.3379903
Aug 1883-0.2748483
Sep 1883-0.4918283
Oct 1883-0.2609196
Nov 1883-0.153763
Dec 18830.079844
Jan 1884-0.01825325
Feb 1884-0.252257
Mar 1884-0.1741622
Apr 1884-0.06562244
May 1884-0.07342488
Jun 18840.1028677
Jul 1884-0.3100655
Aug 1884-0.3220144
Sep 1884-0.5911912
Oct 1884-0.3146581
Nov 1884-0.4630788
Dec 1884-0.3400142
Jan 1885-0.1846019
Feb 1885-0.1685911
Mar 1885-0.1759394
Apr 1885-0.2015504
May 1885-0.2680297
Jun 1885-0.1919813
Jul 1885-0.09328251
Aug 1885-0.08969364
Sep 1885-0.3670694
Oct 1885-0.2752047
Nov 1885-0.2687789
Dec 1885-0.2158264
Jan 18860.02208444
Feb 1886-3.1833421E-04
Mar 1886-0.03031019
Apr 18860.02785576
May 18860.1576512
Jun 18860.1963106
Jul 18860.2315595
Aug 1886-0.01893034
Sep 1886-0.2435257
Oct 1886-0.2361013
Nov 1886-0.04040128
Dec 1886-0.002318575
Jan 1887-0.01743989
Feb 1887-0.03488733
Mar 18870.05085602
Apr 1887-0.02867529
May 18870.1494017
Jun 18870.2231802
Jul 18870.356228
Aug 18870.05539061
Sep 1887-0.06111781
Oct 18870.2057503
Nov 18870.205373
Dec 18870.1611799
Jan 18880.4689821
Feb 18880.3784152
Mar 18880.4537854
Apr 18880.3134296
May 18880.2387955
Jun 18880.332765
Jul 1888-0.0533761
Aug 1888-0.1517228
Sep 1888-0.07685675
Oct 18880.2502841
Nov 18880.007454928
Dec 1888-0.08290704
Jan 18890.05575209
Feb 18890.08922621
Mar 18890.2186203
Apr 18890.2755407
May 18890.2900792
Jun 18890.2572837
Jul 18890.06087848
Aug 18890.09669156
Sep 18890.1938423
Oct 18890.3286078
Nov 18890.4111796
Dec 18890.139649
Jan 18900.02324425
Feb 18900.05170986
Mar 18900.1401919
Apr 1890-0.01660763
May 1890-0.05291371
Jun 18900.0617738
Jul 18900.005296944
Aug 18900.07584815
Sep 18900.07482895
Oct 18900.3245874
Nov 1890-0.05256106
Dec 1890-0.2020007
Jan 1891-0.06625569
Feb 18910.04697813
Mar 18910.2333023
Apr 18910.2108305
May 18910.2211916
Jun 1891-0.01505792
Jul 1891-0.0458853
Aug 1891-0.1480649
Sep 1891-0.291147
Oct 1891-0.2892478
Nov 1891-0.4143785
Dec 1891-0.05737619
Jan 18920.06041934
Feb 18920.1343929
Mar 18920.1650255
Apr 18920.1936276
May 1892-0.05592521
Jun 1892-0.08434065
Jul 1892-0.1635851
Aug 1892-0.00969564
Sep 1892-0.1255986
Oct 1892-0.1831972
Nov 1892-0.3904443
Dec 1892-0.3003775
Jan 1893-0.1660147
Feb 1893-0.05968332
Mar 1893-0.07028797
Apr 1893-0.1757114
May 1893-0.1768579
Jun 1893-0.005884953
Jul 1893-0.1134593
Aug 1893-0.1667915
Sep 1893-0.1860199
Oct 1893-0.02145286
Nov 18930.0546708
Dec 1893-0.2479379
Jan 1894-0.1052128
Feb 1894-0.09440897
Mar 18940.01685206
Apr 1894-0.170072
May 1894-0.3674736
Jun 1894-0.3840295
Jul 1894-0.3566311
Aug 1894-0.319672
Sep 1894-0.4140192
Oct 1894-0.5468147
Nov 1894-0.5220028
Dec 1894-0.3409795
Jan 1895-0.215467
Feb 1895-0.1968323
Mar 1895-0.3547778
Apr 1895-0.3014582
May 1895-0.1307972
Jun 18950.01738862
Jul 1895-0.1087184
Aug 1895-0.2871048
Sep 1895-0.1615277
Oct 1895-0.06991176
Nov 1895-0.4160876
Dec 1895-0.216162
Jan 1896-0.15455
Feb 1896-0.02486765
Mar 1896-0.1589484
Apr 1896-0.07078826
May 18960.1903083
Jun 18960.05014268
Jul 1896-0.09649594
Aug 1896-0.008990883
Sep 18960.2416663
Oct 18960.02833226
Nov 1896-0.04109529
Dec 1896-0.2618259
Jan 1897-0.05815877
Feb 1897-0.01034864
Mar 18970.04044957
Apr 18970.02943224
May 18970.05936791
Jun 1897-0.100596
Jul 1897-0.2959675
Aug 1897-0.3279505
Sep 1897-0.2667477
Oct 1897-0.2564402
Nov 1897-0.3509057
Dec 1897-0.3490959
Jan 1898-0.2784226
Feb 1898-0.08358828
Mar 18980.2591656
Apr 18980.199897
May 18980.1767265
Jun 18980.2407827
Jul 18980.4852906
Aug 18980.6403841
Sep 18980.3019655
Oct 1898-0.1613896
Nov 1898-0.2421513
Dec 18980.08587059
Jan 1899-0.1358218
Feb 1899-0.2030984
Mar 1899-0.003777893
Apr 18990.1647857
May 18990.1925568
Jun 18990.2378843
Jul 18990.1511871
Aug 18990.3555786
Sep 18990.1527396
Oct 1899-0.03892523
Nov 1899-0.1512525
Dec 18990.07955486
Jan 1900-0.002996824
Feb 19000.0272405
Mar 19000.02369458
Apr 19000.1179838
May 1900-0.1549984
Jun 1900-0.2421587
Jul 1900-0.2290901
Aug 1900-0.3146064
Sep 1900-0.151391
Oct 19000.01860693
Nov 1900-0.07789136
Dec 1900-0.1206787
Jan 1901-0.3110964
Feb 1901-0.01176852
Mar 1901-0.06977779
Apr 1901-0.04551022
May 19010.1057598
Jun 19010.2832665
Jul 19010.1871777
Aug 19010.1901771
Sep 19010.03393508
Oct 1901-0.09094019
Nov 19010.02569043
Dec 19010.03313732
Jan 19020.06237676
Feb 19020.06868269
Mar 19020.08154593
Apr 1902-0.1324235
May 1902-0.1575788
Jun 1902-0.4708876
Jul 1902-0.693984
Aug 1902-0.3898312
Sep 19020.03902267
Oct 19020.103074
Nov 1902-0.1290192
Dec 1902-0.3967073
Jan 1903-0.405678
Feb 1903-0.2583186
Mar 1903-0.2763633
Apr 1903-0.306337
May 1903-0.4992759
Jun 1903-0.6441106
Jul 1903-0.7152973
Aug 1903-0.9802818
Sep 1903-0.8184816
Oct 1903-0.6849681
Nov 1903-0.4330961
Dec 1903-0.3750775
Jan 1904-0.4162794
Feb 1904-0.412296
Mar 1904-0.3480294
Apr 1904-0.2895472
May 1904-0.2690599
Jun 1904-0.4111445
Jul 1904-0.3320256
Aug 1904-0.5493489
Sep 1904-0.6738378
Oct 1904-0.4356302
Nov 1904-0.2631615
Dec 1904-0.3345527
Jan 1905-0.3832006
Feb 1905-0.2518493
Mar 1905-0.4844896
Apr 1905-0.138139
May 1905-0.1382625
Jun 1905-0.3123667
Jul 1905-0.237986
Aug 1905-0.5779451
Sep 1905-0.654891
Oct 1905-0.4265365
Nov 1905-0.4229144
Dec 1905-0.4780002
Jan 1906-0.2412352
Feb 1906-0.007789261
Mar 1906-0.03770715
Apr 19060.06430075
May 1906-0.07753871
Jun 1906-0.03453517
Jul 19060.02704431
Aug 1906-0.2011517
Sep 1906-0.2231242
Oct 1906-0.1099695
Nov 19060.06331407
Dec 1906-0.2532417
Jan 1907-0.218725
Feb 1907-0.2123163
Mar 1907-0.04320239
Apr 19070.04604027
May 1907-0.1417716
Jun 1907-0.3940061
Jul 1907-0.3233907
Aug 1907-0.4880032
Sep 1907-0.2051209
Oct 1907-0.3755777
Nov 1907-0.3801666
Dec 1907-0.2200755
Jan 1908-0.2039084
Feb 1908-0.1501316
Mar 1908-0.06173839
Apr 1908-0.08588345
May 1908-0.1228142
Jun 19080.2313728
Jul 19080.3651764
Aug 19080.1565704
Sep 1908-0.05873783
Oct 1908-0.08812696
Nov 1908-0.1190516
Dec 1908-0.2445495
Jan 1909-0.04702562
Feb 19090.03692039
Mar 19090.1399988
Apr 19090.02729807
May 1909-0.0233428
Jun 1909-0.2078594
Jul 1909-0.1321198
Aug 19090.04232978
Sep 19090.1224003
Oct 19090.03777451
Nov 1909-0.09509107
Dec 1909-0.1136326
Jan 1910-0.2097884
Feb 1910-0.1242703
Mar 1910-0.08245298
Apr 1910-0.09977792
May 19100.06894489
Jun 1910-0.1380014
Jul 1910-0.1262221
Aug 1910-0.2092604
Sep 19100.01906474
Oct 1910-0.1237618
Nov 19100.08746842
Dec 1910-0.1621501
Jan 1911-0.189527
Feb 1911-0.1701669
Mar 1911-0.1588115
Apr 1911-0.1885918
May 1911-0.2517973
Jun 1911-0.115573
Jul 19110.1303895
Aug 19110.07513861
Sep 1911-0.08046412
Oct 1911-0.08584123
Nov 1911-0.3157854
Dec 1911-0.2586332
Jan 1912-0.3817073
Feb 1912-0.4159927
Mar 1912-0.4443179
Apr 1912-0.3221703
May 1912-0.1660633
Jun 1912-0.2605961
Jul 1912-0.5273991
Aug 1912-0.8177722
Sep 1912-0.5790187
Oct 1912-0.500652
Nov 1912-0.2941095
Dec 1912-0.3041573
Jan 1913-0.4693487
Feb 1913-0.3417217
Mar 1913-0.1818016
Apr 1913-0.2635112
May 1913-0.327649
Jun 1913-0.6862185
Jul 1913-0.5313596
Aug 1913-0.4135414
Sep 1913-0.397099
Oct 1913-0.3253706
Nov 1913-0.5257528
Dec 1913-0.397349
Jan 1914-0.4088168
Feb 1914-0.6320345
Mar 1914-0.4909098
Apr 1914-0.6065883
May 1914-0.3367629
Jun 1914-0.3863772
Jul 1914-0.61315
Aug 1914-0.6981755
Sep 1914-0.3478959
Oct 1914-0.2684146
Nov 1914-0.4125292
Dec 1914-0.6149093
Jan 1915-0.3437761
Feb 1915-0.1840057
Mar 19150.04682176
Apr 19150.1378643
May 19150.3045641
Jun 19150.1746066
Jul 19150.08849328
Aug 1915-0.128474
Sep 1915-0.1120794
Oct 1915-0.1002938
Nov 1915-0.06437849
Dec 1915-0.1197707
Jan 1916-0.2837593
Feb 1916-0.3019896
Mar 1916-0.2094288
Apr 1916-0.01189608
May 19160.1178946
Jun 19160.2087861
Jul 19160.01240448
Aug 1916-0.02810097
Sep 19160.1311157
Oct 19160.06968714
Nov 1916-0.220511
Dec 1916-0.2044266
Jan 1917-0.2419641
Feb 1917-0.469295
Mar 1917-0.5386311
Apr 1917-0.3099164
May 1917-0.2761725
Jun 1917-0.1702577
Jul 1917-0.1515998
Aug 19170.08797568
Sep 1917-0.1604418
Oct 1917-0.1833804
Nov 1917-0.1784591
Dec 1917-0.1886679
Jan 1918-0.09098233
Feb 1918-0.2205711
Mar 1918-0.1720951
Apr 1918-0.1980496
May 1918-0.2686793
Jun 1918-0.6052595
Jul 1918-0.6527168
Aug 1918-0.4718076
Sep 1918-0.4020479
Oct 1918-0.4072919
Nov 1918-0.4966252
Dec 1918-0.4148171
Jan 1919-0.3799477
Feb 1919-0.2806072
Mar 1919-0.31483
Apr 1919-0.123785
May 1919-0.2918872
Jun 1919-0.3240384
Jul 1919-0.3204201
Aug 1919-0.1358114
Sep 1919-0.3425757
Oct 1919-0.1409976
Nov 1919-0.3130542
Dec 1919-0.3730772
Jan 1920-0.5532813
Feb 1920-0.4997807
Mar 1920-0.4599934
Apr 1920-0.3944192
May 1920-0.4076912
Jun 1920-0.5139912
Jul 1920-0.3946612
Aug 1920-0.3394063
Sep 1920-0.4744133
Oct 1920-0.3842212
Nov 1920-0.6515674
Dec 1920-0.5384887
Jan 1921-0.4450619
Feb 1921-0.3835456
Mar 1921-0.3563033
Apr 1921-0.28796
May 1921-0.1430889
Jun 1921-0.04811614
Jul 1921-0.03365766
Aug 1921-0.5316615
Sep 1921-0.451038
Oct 1921-0.1979012
Nov 1921-0.4520921
Dec 1921-0.3157275
Jan 1922-0.4536423
Feb 1922-0.45545
Mar 1922-0.4668971
Apr 1922-0.435283
May 1922-0.2404977
Jun 1922-0.1115316
Jul 1922-0.309622
Aug 1922-0.1761436
Sep 1922-0.1890703
Oct 1922-0.313401
Nov 1922-0.5055469
Dec 1922-0.5469491
Jan 1923-0.4137572
Feb 1923-0.6004347
Mar 1923-0.5055265
Apr 1923-0.4297943
May 1923-0.191945
Jun 1923-0.1826783
Jul 1923-0.2259161
Aug 1923-0.5942143
Sep 1923-0.2990432
Oct 1923-0.07286854
Nov 19230.02841305
Dec 19230.1067336
Jan 1924-0.2258565
Feb 1924-0.2150747
Mar 1924-0.1519207
Apr 1924-0.1576573
May 1924-0.09565233
Jun 1924-0.2686819
Jul 1924-0.2895235
Aug 1924-0.1116629
Sep 1924-0.1749866
Oct 1924-0.02359597
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