Sandy Ridge Weather Extremes
Updated 10:14pm EST on 11/30/09


Today's Extremes
  Today's Max Max Time   Today's Min Min Time
  Temperature 55.7 °F 12:00am   39.1 °F 10:11pm
  Dewpoint 49.4 °F 12:40pm   26.4 °F 10:12pm
  Humidity 94 % 12:30pm   57 % 12:00am
  Barometer 1010.9 mb 9:59pm   1002.8 mb 1:14pm
  Wind Speed 24 mph 8:36pm   - -
  Wind Chill - -   30.2 °F 10:05pm
  Heat Index 57.4 °F 12:58pm   - -



Yesterday's Extremes
  Yesterday Max Max Time   Yesterday Min Min Time
  Temperature 64.3 °F 2:07pm   36.8 °F 3:16am
  Dewpoint 41.3 °F 11:35pm   25.1 °F 12:33am
  Humidity 73 % 7:34am   39 % 1:40pm
  Barometer 1014.0 mb 7:44am   1006.4 mb 11:44pm
  Wind Speed 18 mph 1:39pm   - -
  Wind Chill - -   34.3 °F 8:06am
  Heat Index 64.2 °F 2:13pm   - -



This Month's Extremes
  Month Max Max Date   Month Min Min Date
  Temperature 73.7 °F 11/8/09   33.2 °F 11/7/09
  Dewpoint 60.4 °F 11/19/09   22.5 °F 11/6/09
  Humidity 100 % 11/3/09   33 % 11/17/09
  Barometer 1029.3 mb 11/9/09   1000.7 mb 11/27/09
  Wind Speed 37 mph 11/27/09   - -
  Wind Chill - -   26.1 °F 11/27/09
  Heat Index 74.0 °F 11/8/09   - -



This Year's Extremes
  Year Max Max Date   Year Min Min Date
  Temperature 94.3 °F 8/10/09   2.8 °F 1/17/09
  Dewpoint 78.2 °F 8/18/09   -8.9 °F 1/16/09
  Humidity 100 % 1/7/09   17 % 3/24/09
  Barometer 1037.8 mb 1/16/09   986.0 mb 4/3/09
  Wind Speed 50 mph 2/12/09   - -
  Wind Chill - -   -10.9 °F 1/16/09
  Heat Index 103.5 °F 8/20/09   - -



Station Record Extremes*
  All Time Max Max Date   All Time Min Min Date
  Temperature 101.5 °F 8/2/02   2.8 °F 1/17/09
  Dewpoint 80.7 °F 8/29/03   -15.2 °F 2/5/07
  Humidity 100 % 3/2/02   14 % 9/8/02
  Barometer 1044.1 mb 1/28/05   984.3 mb 4/16/07
  Wind Speed 57 mph 11/13/03   - -
  Wind Chill - -   -17.5 °F 12/20/04
  Heat Index 114.4 °F 8/25/07   - -
*Station record begins 2/22/02



Official Normal and Record Temperatures for this Date
  Normal Max Normal Min   Record Max Max Year   Record Min Min Year
Balt-Wash Int'l Airport  (KBWI) 51 °F 31 °F   74 °F 1933   12 °F 1929
Reagan National Airport  (KDCA) 52 °F 36 °F   75 °F 1933   11 °F 1929
Dulles International Airport (KIAD) 51 °F 30 °F   72 °F 1991   11 °F 1976