000 CDUS41 KLWX 312129 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 525 PM EDT TUE JUL 31 2001 (COR) ................................... ...THE WASHINGTON NATIONAL CLIMATE SUMMARY FOR 31 JULY 2001... VALID TODAY AS OF 500 PM LOCAL TIME. CLIMATE NORMAL PERIOD 1961 TO 1990 CLIMATE RECORD PERIOD 1871 TO 2000 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE TODAY MAXIMUM 81 214 PM 103 1954 88 -7 86 MINIMUM 67 548 AM 52 1895 72 -5 72 AVERAGE 74 80 -6 79 PRECIPITATION (INCHES) TODAY 0.00 3.18 1899 0.13 -0.13 0.02 MONTH TO DATE 4.78 MM MM 3.80 0.98 5.51 SINCE 1 JUN 9.47 MM MM 7.18 2.29 32.40 SINCE 1 JAN 22.82 MM MM 22.15 0.67 28.35 SNOWFALL (INCHES) TODAY 0.00 0.00 2001 MM MM MM MONTH TO DATE 0.00 MM MM MM MM 0.00 SINCE 1 JUN 0.00 MM MM 0.00 0.00 0.00 SINCE 1 JUL 0.00 MM MM MM MM 0.00 SNOW DEPTH (IN) 0.0 DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE 1 JUN 4 0 4 2 SINCE 1 JUL 0 0 0 0 COOLING TODAY 9 15 -6 14 MONTH TO DATE 323 465 -142 307 SINCE 1 JUN 641 783 -142 607 SINCE 1 JAN 760 896 -136 759 .................................................................. WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION 190 HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION 180 AVERAGE WIND SPEED MM SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.70 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY HIGHEST RH 90 PERCENT 700 AM LOWEST RH 62 PERCENT 100 PM AVERAGE RH 76 PERCENT .......................................................... THE WASHINGTON NATIONAL CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE 89 98 1980 1999 MINIMUM TEMPERATURE 72 54 1895 SUNRISE AND SUNSET 31 JULY 2001..........SUNRISE 608 AM SUNSET 820 PM 1 AUGUST 2001........SUNRISE 609 AM SUNSET 819 PM - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE OF PRECIPITATION. @ RUKWBCeKDENCDUS41 KLWX 312129 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 525 PM EDT TUE JUL 31 2001 (COR) ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR 31 JULY 2001... VALID TODAY AS OF 500 PM LOCAL TIME. CLIMATE NORMAL PERIOD 1961 TO 1990 CLIMATE RECORD PERIOD 1962 TO 2000 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE TODAY MAXIMUM 82 300 PM 98 1999 87 -5 86 MINIMUM 61 MM 50 1997 64 -3 69 AVERAGE 72 76 -4 78 PRECIPITATION (INCHES) TODAY 0.00 1.87 1978 0.12 -0.12 0.01 MONTH TO DATE 4.20 MM MM 3.49 0.71 4.28 SINCE 1 JUN 9.02 MM MM 7.41 1.61 26.57 SINCE 1 JAN 25.43 MM MM 23.22 2.21 23.00 SNOWFALL (INCHES) TODAY 0.00 0.00 2001 MM MM MM MONTH TO DATE 0.00 MM MM MM MM 0.00 SINCE 1 JUN 0.00 MM MM MM MM 0.00 SINCE 1 JUL 0.00 MM MM MM MM 0.00 SNOW DEPTH (IN) 0.0 DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 5 0 5 0 SINCE 1 JUN 18 7 11 9 SINCE 1 JUL 5 0 5 0 COOLING TODAY 7 11 -4 13 MONTH TO DATE 235 329 -94 220 SINCE 1 JUN 481 516 -35 449 SINCE 1 JAN 548 569 -21 546 .................................................................. WIND (MPH) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION 210 HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 3.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.75 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG RELATIVE HUMIDITY HIGHEST RH 100 PERCENT 1200 AM LOWEST RH 62 PERCENT 200 PM AVERAGE RH 81 PERCENT .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE 87 100 1980 MINIMUM TEMPERATURE 65 54 1997 SUNRISE AND SUNSET 31 JULY 2001..........SUNRISE 609 AM SUNSET 822 PM 1 AUGUST 2001........SUNRISE 610 AM SUNSET 821 PM - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE OF PRECIPITATION.