June Rainfall Summary

 


Parish Standard Precipitation Index (SPI) Assessment

Parish Mean Rainfall and Comparison with 30-yr Averages

  JUN JUN JUN % OF 30 YR NORMAL
Parishes KEY 2020 2019 30 YR NORMAL (1971-2000) 2020 2020 2020
APR MAY JUN
Westmoreland WES 132 122 216 77 51 61
St. Elizabeth STE 106 64 127 25 51 83
Manchester MAN 114 29 115 18 28 99
Clarendon CLA 47 13 94 25 24 50
St. Catherine STC 60 48 110 21 18 55
Kingston & St. Andrew (KSA) KSA 63 52 98 20 22 64
St. Thomas STT 31 6 170 7 27 19
Portland POR 95 34 206 4 17 46
St. Mary STM 55 9 117 16 27 48
St. Ann STA 72 38 95 20 34 76
Trelawny TRE 104 112 93 75 94 112
St. James STJ 93 86 161 40 70 58
Hanover HAN 177 120 283 66 51 62
   
Jamaica JAM 88 56 145 30 40 61

Table 1: Parish Mean Rainfall

 

Observed SPI for March to June 2020

Parishes Mar/Apr Apr/May May/Jun
Westmoreland -0.81 -1.17 -1.44
St. Elizabeth -1.88 -1.94 -0.65
Manchester -1.92 -2.10 -1.06
Clarendon -0.61 -1.55 -1.53
St. Catherine  -1.00 -2.35 -1.78
Kingston & St. Andrew -0.88 -1.42 -0.95
St. Thomas -1.37 -1.80 -1.77
Portland -0.07 -2.77 -1.72
St. Mary -0.74 -1.98 -1.32
St. Ann -0.42 -1.60 -1.31
Trelawny -0.61 -0.82 -0.28
St. James -1.81 -1.74 -1.45
Hanover -1.02 -1.17 -1.51

Table 2: Parish SPI for December 2019 to March 2020

 

SPI Data Used In Jamaica Drought Monitor

SPI Value Category SPI Value Category
0.00 to -0.50 Near-normal (dry) 0.00 to 0.50 Near-normal (wet)
-0.51 to -0.79 Abnormally Dry 0.51 to 0.79 Abnormally Wet
-0.80 to -1.29 Moderately Dry 0.80 to 1.29 Moderately Wet
-1.30 to -1.59 Severely Dry 1.30 to 1.59 Severely Wet
-1.60 to -1.99 Extremely Dry 1.60 to 1.99 Extremely Wet
-2.00 or less Exceptionally Dry 2.00 or more Exceptionally Wet

Table 3: SPI Category Chart.