November Rainfall Summary

Parish Standard Precipitation Index (SPI) Assessment

Observed SPI for August to November 2019
Parishes Aug/Sep Sep/Oct Oct/Nov
Westmoreland -1.08 -0.41 -0.60
St. Elizabeth -0.13 0.31 -0.21
Manchester 0.27 0.46 -0.15
Clarendon 0.21 0.60 0.45
St. Catherine 0.65 0.96 -0.34
Kingston & St. Andrew -0.29 -0.26 -0.45
St. Thomas -0.57 -0.08 -0.41
Portland -0.56 -0.95 -1.35
St. Mary -0.63 -1.10 -1.22
St. Ann 0.69 -0.29 -0.71
Trelawny 1.99 2.04 0.70
St. James -0.08 -0.48 -0.25
Hanover -0.12 -0.50 -0.32

Table 2:  Parish SPI for August to November 2019

SPI Data Used In Jamaica Drought Monitor

Categories SPI Values 
 Near Normally Drying (40%tile)  0.0 to -0.4
Abnormally Dry

(30%tile)

-0.5 to -0.7
Moderate Drought

(20%tile)

-0.8 to -1.2
Severe Drought

(10%tile)

-1.3 to -1.5
Extreme Drought

(5%tile)

-1.6 to -1.9
Exceptional Drought

(2%tile)

-2.0 or less
Categories SPI Values 
Near Normally Wetness (60%tile)  0.0 to 0.4
Abnormally Wetness (70%tile) 0.5 to 0.7
Moderate Wetness

(80%tile)

0.8 to 1.2
Severe Wetness

(90%tile)

1.3 to 1.5
Extreme Wetness

(95%tile)

1.6 to 1.9
Exceptional Wetness

(98%tile)

2.0 or more