Despite high rainfall (165 mm) in February and normal rainfall (53 mm) in March, many severe and extreme shortages persisted. Only at durations shorter than one year were rainfall totals near normal. As in February, the 12-month total remained at 432 mm: a serious shortage.
Three near-record low rainfalls
Although no records were broken this month, three rainfall totals were the third-driest ever: those for 42-months (1508 mm), 84-months (3495 mm) and 96-months (4142 mm).
How to read the graph
This graph shows all the present rainfall shortages at Manilla, short term and long term, as percentile values. The latest values are shown by a thick black line with large circles. Those from one month earlier are shown by a thinner line with small diamonds. [The method is described in “Further Explanation” below.]
The following notes explain aspects of this work under these listed headings:
Cumulative rainfall totals
Severity of rainfall shortages
Limitations of this analysis
Monthly rainfalls form a single population
Observations are not retrospective
The rain gauge failed