A February water surplus
Yesterday's snow, sleet, freezing rain and rain pushed us over the 30-year average for precipitation in February. But we still haven't done much to reverse the 9-inch deficit we've accumulated since last April.
The NWS instruments at BWI recorded 1.44 inches of precipitation on Tuesday and Wednesday. That brought the month's total to 3.27 inches, a quarter-inch over the 30-year average of 3.02 inches for February. But deficits for seven of the previous nine months have left us with less reserve than we want heading into a new growing season and summer heat.
Here's how the precipitation totals stack up as departures from the longterm averages. Negative numbers are deficits, positive numbers are surpluses:
May 2007: -2.95 inches
June 2007: -1.23 inches
July: 2007: -0.54 inch
August 2007: -0.66 inch
September 2007: -3.63 inches
October 2007: +2.69 inches
November 2007: -1.60 inches
December 2007: +0.68 inch
January 2008: -2.00 inches
February 2008*: +0.25 inch
Total: -8.99 inches
* through 2/13/2008
Here's this week's Drought Monitor map, which does not reflect the recent precipitation..

