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Global Precipitation Climatology Centre (GPCC) Standardized Precipitation Index (SPI)

Associated Agencies

Deutscher Wetterdienst

The Standardized Precipitation Index, or SPI, is a drought index that captures how observed precipitation deviates from the climatological average over a given time period. The Global Precipitation Climatology Centre (GPCC) Gridded Standardized Precipitation Index is derived from the GPCC monthly precipitation dataset and includes timescales of 1, 2, 3, 6, 9, 12, 24, 36, 48, 60 and 72 months. The SPI is available with both the gamma and Pearson Type III types of distribution fittings.

The GPCC monthly dataset is a gridded dataset for climate monitoring purposes and related research. All users are requested to refer to the GPCC and the product specific DOI (Digital Object Identifier) reference as provided below. Available are the following user tailored products that differ with regard to the underlying data and the use case:

Near real-time First Guess of monthly precipitation anomalies based on SYNOP messages of meanwhile approx. 7,000 stations arriving with Deutscher Wetterdienst.

Interactive Map: Monthly Standardized Precipitation Index (SPI)

Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.
Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.
Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.
Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.
Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.
Dry Conditions
Value Map Hex Color Description
D4 #730000 D4 (-2.0 or less) The Standardized Precipitation Index (SPI) value for this location is -2.0 or less, indicating exceptional drought (D4) conditions.
D3 #E60000 D3 (-1.9 to -1.6) The Standardized Precipitation Index (SPI) value for this location is between -1.9 to -1.6, indicating extreme drought (D3) conditions.
D2 #FFAA00 D2 (-1.5 to -1.3) The Standardized Precipitation Index (SPI) value for this location is between -1.5 to -1.3, indicating severe drought (D2) conditions.
D1 #FCD37F D1 (-1.2 to -0.8) The Standardized Precipitation Index (SPI) value for this location is between -1.2 to -0.8, indicating moderate drought (D1) conditions.
D0 #FFFF00 D0 (-0.7 to -0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.7 to -0.5, indicating abnormally dry (D0) conditions.
Value Map Hex Color Description
Neutral Conditions #fafafa Neutral Conditions (-0.5 to 0.5) The Standardized Precipitation Index (SPI) value for this location is between -0.5 to 0.5, indicating neutral conditions.
Wet Conditions
Value Map Hex Color Description
W0 #8ccdef W0 (0.5 to 0.7) The Standardized Precipitation Index (SPI) value for this location is between 0.5 to 0.7, indicating abnormally wet (W0) conditions.
W1 #00bfff W1 (0.8 to 1.2) The Standardized Precipitation Index (SPI) value for this location is between 0.8 to 1.2, indicating moderate wet (W1) conditions.
W2 #1d90ff W2 (1.3 to 1.5) The Standardized Precipitation Index (SPI) value for this location is between 1.3 to 1.5, indicating severe wet (W2) conditions.
W3 #4169e1 W3 (1.6 to 1.9) The Standardized Precipitation Index (SPI) value for this location is between 1.6 to 1.9, indicating extreme wet (W3) conditions.
W4 #0000ff W4 (2.0 or more) The Standardized Precipitation Index (SPI) value for this location is 2.0 or greater, indicating exceptional wet (W4) conditions.

Access

Global Precipitation Climatology Centre (GPCC) SPI Data Products: View GPCC gridded monthly SPI products on the Global Drought Information System (GDIS) Site

Global Precipitation Climatology Centre (GPCC) SPI Data Products: Download GPCC SPI products