Please note this information is preliminary and subject to revision. Official and certified climatic data can be accessed at the National Climatic Data Center (NCDC) (http://www.ncdc.noaa.gov/oa/ncdc.html).

Climate Report


000
CDUS41 KRNK 010910
CLIRNK


CLIMATE REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
510 AM EDT THU MAY 1 2008


 ...................................

...THE BLACKSBURG CLIMATE SUMMARY FOR APRIL 30 2008...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1952 TO 2008


 WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         63    600 PM  85    1994  67     -4       81
  MINIMUM         30    500 AM  28    1971  41    -11       44
  AVERAGE         47                        54     -7       63

PRECIPITATION (IN)
  YESTERDAY        0.00          1.37 1994   0.14  -0.14     0.00
  MONTH TO DATE    5.69                      3.83   1.86     3.63
  SINCE MAR 1      8.26                      7.66   0.60    10.27
  SINCE JAN 1     11.54                     14.05  -2.51    14.95

SNOWFALL (IN)
  YESTERDAY        0.0
  MONTH TO DATE    0.0
  SINCE MAR 1      T
  SINCE JUL 1      8.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                        11      7        2
  MONTH TO DATE  375                       452    -77      430
  SINCE MAR 1   1020                      1185   -165      956
  SINCE JUL 1   4532                      5293   -761     4749

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        4
  SINCE MAR 1      0                         0      0        4
  SINCE JAN 1      0                         0      0        4
..................................................................


 WIND (MPH)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     2.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           600 AM
 LOWEST     34           500 PM
 AVERAGE    63

 ..........................................................


THE BLACKSBURG CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   67        86      2007
 MINIMUM TEMPERATURE (F)   41        28      1971


SUNRISE AND SUNSET
MAY  1 2008...........SUNRISE   626 AM EDT   SUNSET   811 PM EDT
MAY  2 2008...........SUNRISE   625 AM EDT   SUNSET   812 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
The U.S. Naval Observatory (USNO) computes astronomical data. Therefore, the NWS does not record, certify, or authenticate astronomical data. Computed times of sunrise, sunset, moonrise, moonset; and twilight, moon phases and other astronomical data are available from USNO's Astronomical Applications Department (http://aa.usno.navy.mil). See http://aa.usno.navy.mil/faq/docs/lawyers.php for information on using these data for legal purposes.