000 CXUS51 KLWX 011720 CLMBWI CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 120 PM EDT WED JUL 1 2009 ................................... ...THE BALTIMORE MD CLIMATE SUMMARY FOR THE MONTH OF JUNE 2009... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1870 TO 2009 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 105 06/29/1934 LOW 40 06/11/1972 HIGHEST 89 06/26 95 -6 06/25 LOWEST 46 06/01 49 -3 AVG. MAXIMUM 80.6 82.7 -2.1 86.6 AVG. MINIMUM 62.2 60.8 1.4 64.0 MEAN 71.4 71.8 -0.4 DAYS MAX >= 90 0 5.7 -5.7 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 0 0.0 0.0 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.95 1972 MINIMUM 0.15 1954 TOTALS 5.52 3.43 2.09 3.70 DAILY AVG. 0.18 0.11 0.07 DAYS >= .01 12 10.0 2.0 DAYS >= .10 10 6.3 3.7 DAYS >= .50 4 2.2 1.8 DAYS >= 1.00 2 1.0 1.0 GREATEST 24 HR. TOTAL 1.92 06/17 TO 06/18 DEGREE_DAYS HEATING TOTAL 13 16 -3 0 SINCE 7/1 4722 4720 2 4324 COOLING TOTAL 213 236 -23 317 SINCE 1/1 324 322 2 356 .............................................................. WIND (MPH) AVERAGE WIND SPEED 5.5 HIGHEST WIND SPEED/DIRECTION 30/320 DATE 06/09 HIGHEST GUST SPEED/DIRECTION 40/320 DATE 06/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 18 NUMBER OF DAYS CLOUDY 11 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 7 MIXED PRECIP 0 HEAVY RAIN 6 RAIN 8 LIGHT RAIN 15 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 22 FOG W/VIS <= 1/4 MILE 2 HAZE 13 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AVERAGE MONTHLY TEMPERATURE FOR JUNE 2009 WAS JUST SLIGHTLY BELOW NORMAL. THE MAX TEMPERATURE DID NOT HIT 90F AT BWI IN JUNE...WHICH IS ONLY THE 6TH TIME THIS HAS HAPPENED. IN ADDITION...MAY 2009 ALSO DID NOT HIT 90F. THIS IS ONLY THE FOURTH TIME TEMPERATURES HAVE FAILED TO REACH 90F DURING THE COMBINED MAY-JUNE PERIOD AND THE FIRST SINCE 1979. THE NORMAL NUMBER OF DAYS OF 90F OR GREATER DURING THIS TWO MONTH PERIOD IS 7.2. RAINFALL FOR JUNE WAS ABOVE NORMAL. THIS IS THE THIRD MONTH IN A ROW WITH ABOVE NORMAL RAINFALL. IT IS THE SECOND STRAIGHT YEAR AT BWI WHEN THE APRIL-MAY-JUNE PERIOD HAS MEASURED THREE CONSECUTIVE MONTHS OF ABOVE NORMAL RAINFALL. TOTAL THREE MONTH APRIL-JUNE 2009 RAINFALL OF 19.74 INCHES IS THE SECOND HIGHEST EVER MEASURED...SECOND ONLY TO 21.69 INCHES THAT FELL IN APRIL-MAY-JUNE OF 1889. $$ JRK/SMZ