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Carolinas-wide
Precipitation
Heavy Precipitation Events
Drought Indexes
SPI Drought Maps
ISDI Drought Maps
SDCI Drought Maps
Drought Return Periods
Recurrence Intervals
Crop Yields
Regional
Climate Divisions
Monthly NC Precipitation
Monthly SC Precipitation
Average Monthly Precipitation
NC Drought Indexes
SC Drought Indexes
Stations
Events
1998–2002 Drought
2015 Flood
1920s Drought
Glossary
Home
Carolinas
Current:
SPI Gridded Maps
Carolinas Precipitation Patterns & Probabilities
An Atlas of Hydroclimate Extremes
Historical SPI Maps for the Carolinas
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SPI Length (months)
SPI 1
SPI 2
SPI 3
SPI 6
SPI 9
SPI 12
SPI 24
Year
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1945
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1926
1925
1924
1923
1922
1921
1920
1919
1918
1917
1916
1915
1914
1913
1912
1911
1910
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
1895
Month
January
February
March
April
May
June
July
August
September
October
November
December
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Data Source: 4-km gridded PRISM precipitation dataset,
PRISM Climate Data