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- Rain Spi3 World
Rain SPI3 of the world per half minute
Click on the Name to view the long term averages per half miniute GRID cellSPI formula is defined as the Observed rainfall in mm. over 3 months minus the Average over 3 months divided by the Standard Deviation of 3 months
| YEAR | NAME | TOTAL CELLS | JANUARY | FEBRUARY | MARCH | APRIL | MAY | JUNE | JULY | AUGUST | SEPTEMBER | OCTOBER | NOVEMBER | DECEMBER |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | Virgin Islands, United States - | 1 | -2.5 | -2.2 | -1.1 | -1.7 | -.6 | -1.8 | -1.9 | -1.8 | .5 | .8 | .7 | .5 |
| 1976 | Virgin Islands, United States - | 1 | .4 | 1.1 | -.6 | -.1 | -.2 | -.7 | -1.3 | -1 | -.8 | -.2 | -.9 | -1.1 |
| 1977 | Virgin Islands, United States - | 1 | -1.4 | -1.3 | -1.7 | -1.4 | .2 | -.9 | -1 | -.5 | .3 | .8 | 1.7 | 1.4 |
| 1978 | Virgin Islands, United States - | 1 | .8 | -1 | .2 | 2.5 | 2.4 | 1 | -.2 | -.9 | -.7 | .8 | .7 | .4 |
| 1979 | Virgin Islands, United States - | 1 | -.6 | -1.1 | -.5 | 0 | 2.6 | 2.3 | 2.7 | 2.9 | 2.6 | 1.7 | 1 | -.1 |
| 1980 | Virgin Islands, United States - | 1 | -.1 | -1.1 | -1.1 | 0 | 1.4 | .5 | .1 | -1.2 | -1.2 | -1.2 | -1.4 | -1 |
| 1981 | Virgin Islands, United States - | 1 | -1.2 | -.4 | -.2 | .6 | 1.7 | .9 | 1.2 | .7 | -.2 | -.8 | -1.3 | .7 |
| 1982 | Virgin Islands, United States - | 1 | .6 | 3.1 | .2 | -.2 | 1 | .4 | 1.4 | -.2 | .1 | -1.1 | -.8 | -.5 |
| 1983 | Virgin Islands, United States - | 1 | -.2 | -.9 | -1.4 | 1 | 2.1 | 1.4 | 1.1 | 1.7 | .2 | -.7 | -1.6 | -1 |
| 1984 | Virgin Islands, United States - | 1 | -.9 | .1 | -.5 | -1.5 | -.5 | -.4 | .1 | -.1 | -.3 | .1 | 1.1 | .8 |
| 1985 | Virgin Islands, United States - | 1 | .3 | -.7 | .4 | .5 | 1.6 | -.4 | -.2 | -1.4 | 0 | 2.2 | 1.9 | 1.3 |
| 1986 | Virgin Islands, United States - | 1 | -.6 | -1.1 | -.7 | .2 | 2.3 | 1.1 | .6 | -.5 | -1 | -.7 | -.4 | .2 |
| 1987 | Virgin Islands, United States - | 1 | .1 | -.5 | .1 | .8 | 2.4 | 2.3 | 1.7 | 0 | -1.6 | -1.1 | .8 | 2.1 |
| 1988 | Virgin Islands, United States - | 1 | 2.5 | 2 | .4 | 0 | .2 | -.3 | 0 | 1.2 | .8 | .8 | .1 | .2 |
| 1989 | Virgin Islands, United States - | 1 | .1 | 1.1 | 1.8 | 1.3 | .7 | -.5 | 0 | .9 | 1.6 | .4 | -.6 | -1.9 |
| 1990 | Virgin Islands, United States - | 1 | -1.3 | -.9 | 1.3 | 1.3 | .4 | -.6 | -.7 | 0 | -.6 | .7 | 0 | .6 |
| 1991 | Virgin Islands, United States - | 1 | -.5 | 1.2 | .9 | .4 | -.1 | -1 | -.9 | -1.2 | -1 | -1.5 | -.7 | -.7 |
| 1992 | Virgin Islands, United States - | 1 | .7 | .3 | 1.3 | -.3 | 1.3 | .6 | .2 | -.3 | -.6 | -.9 | -.1 | .2 |
| 1993 | Virgin Islands, United States - | 1 | 1 | .1 | -.8 | -.6 | .6 | .2 | 1 | .8 | .3 | -1.2 | -.7 | -1 |
| 1994 | Virgin Islands, United States - | 1 | -.5 | -.2 | 0 | -.7 | -.5 | -1.2 | -1.4 | -1.6 | -1.2 | -1 | -.5 | -.4 |
| 1995 | Virgin Islands, United States - | 1 | -.4 | 0 | .1 | -.3 | 0 | -.7 | 0 | .3 | .6 | -.3 | -.8 | -1.2 |
| 1996 | Virgin Islands, United States - | 1 | .2 | 1.3 | 2.3 | 0 | .3 | -.1 | .2 | 1.2 | 2.4 | 1.5 | 1.2 | -.7 |
| 1997 | Virgin Islands, United States - | 1 | -.1 | .2 | 1 | -.5 | -.6 | -1.6 | -1.1 | -.6 | -.4 | .1 | .1 | -.3 |
| 1998 | Virgin Islands, United States - | 1 | -.2 | -.3 | 1.5 | .3 | .6 | -.5 | -.5 | .5 | 1.2 | 1.7 | 1.1 | 1.3 |
| 1999 | Virgin Islands, United States - | 1 | 1.2 | 1.4 | -.4 | -1.6 | -.7 | -1 | -.6 | .7 | .3 | .4 | 1.5 | 1.8 |
| 2000 | Virgin Islands, United States - | 1 | 1.6 | .2 | -1.3 | -1.9 | 0 | -.7 | -.9 | -.4 | -.1 | .1 | -1 | -1.1 |
| 2001 | Virgin Islands, United States - | 1 | -1 | -.6 | -.4 | -.3 | .1 | -.9 | -1 | -.6 | -.7 | -.6 | -1 | -.2 |
| 2002 | Virgin Islands, United States - | 1 | 0 | .1 | -1.1 | -1 | 0 | -.6 | -.9 | -.6 | -.3 | -.3 | -.6 | -.7 |
| 2003 | Virgin Islands, United States - | 1 | -.5 | -.1 | -.4 | 1.8 | 1.5 | .9 | -.2 | -.1 | 0 | -.2 | .7 | .5 |
| 2004 | Virgin Islands, United States - | 1 | .4 | -.7 | -.5 | -.3 | 1 | .4 | .8 | .3 | .7 | .6 | .8 | .3 |
| 2005 | Virgin Islands, United States - | 1 | .5 | .1 | -.5 | 1.6 | 2 | 1.7 | .9 | 1.5 | .7 | 1.2 | .7 | .6 |
| 2006 | Virgin Islands, United States - | 1 | -.2 | -.9 | -1.6 | -1.1 | -.3 | -1 | -1.4 | -1.5 | -1.7 | -1.5 | -1.5 | -1.1 |
| 2007 | Virgin Islands, United States - | 1 | -1.4 | -1.4 | -1.2 | .7 | .6 | .1 | -.9 | -.1 | -.1 | -.1 | -.4 | 0 |
| 2008 | Virgin Islands, United States - | 3 | -1.8 | -1.9 | -2.6 | -3.4 | -1.8 | -2.6 | -3.1 | -3 | -1.2 | -.7 | -1 | -1.7 |
| 2009 | Virgin Islands, United States - | 3 | -2.1 | -2.2 | -2 | -2.1 | -1 | -1.7 | -2 | -2.2 | -2.3 | -2.6 | -1.8 | -1.7 |
| 2010 | Virgin Islands, United States - | 3 | -1.1 | -2.1 | -2.4 | -3.1 | -.6 | -.9 | -.8 | -1.3 | -1.7 | -1.5 | -1.7 | -1.5 |
| 2011 | Virgin Islands, United States - | 3 | -2 | -2.4 | -3.1 | -3.1 | -1.2 | -1.8 | -1.9 | -1.9 | -2.1 | -2.4 | -2.7 | -2.7 |
| 2012 | Virgin Islands, United States - | 1 | -2.2 | -2.5 | -2.6 | -2.5 | -1 | -2.4 | -2.7 | -3.4 | -2.9 | -3.1 | -3 | -2.5 |
| 2013 | Virgin Islands, United States - | 1 | -2.4 | -2.8 | -3.3 | -3.2 | -1.1 | -1.8 | -1.8 | -2.4 | -2.2 | -2.8 | -2.5 | -2.2 |
| 2014 | Virgin Islands, United States - | 1 | -2 | -2.5 | -3.3 | -3.2 | -1.3 | -2.3 | -2.8 | -3.4 | -2.7 | -2.8 | -2.6 | -2.3 |
| 2015 | Virgin Islands, United States - | 1 | -1.9 | -2.4 | -2.9 | -3.4 | -1.1 | -2.1 | -2.5 | -3.4 | -2.7 | -2.5 | -1.7 | -1.2 |
| 2016 | Virgin Islands, United States - | 3 | -1 | -1.8 | -2 | -1.6 | -.6 | -1.8 | -2.1 | -2.5 | -1.9 | -1.6 | -.8 | -.5 |
| 2017 | Virgin Islands, United States - | 3 | -.8 | -1.9 | -1.6 | -1.1 | -.3 | -1.6 | -1.8 | -1.7 | -1.3 | -1 | -1.3 | -1.3 |
| 43 values. Sum: | 55 | -20.5 | -25.6 | -30.3 | -27.2 | 13.5 | -20.1 | -24.6 | -27.1 | -21.2 | -20.5 | -19.3 | -17.7 | |
| Average: | 1 | -0 | -1 | -1 | -1 | 0 | -0 | -1 | -1 | -0 | -0 | -0 | -0 |
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