Denver Weather Summary for 2004
CORRECTED
NATIONAL WEATHER SERVICE DENVER COLORADO
1130 PM MST SUN JAN 02 2005
...DENVER'S WEATHER SUMMARY FOR 2004...
DENVER'S 2004 FINISHED SLIGHTLY ABOVE NORMAL IN TEMPERATURE AND ONCE
AGAIN BELOW NORMAL PRECIPITATION. NEITHER CATEGORY GOT INTO ANY OF
THE TOP TEN STATISTICS. THE GOOD NEWS THIS PAST YEAR WAS THAT THE
PRECIPITATION TOTAL OF 14.67 WAS ONLY 1.14 INCHES BELOW THE NORMAL
OF 15.81 INCHES. BASED ON PREVIOUS ANNUAL TOTALS 14.67 WAS A WELCOMED
IMPROVEMENT. SEASONAL TOTAL FOR HALF OF THE WINTER SEASON (JUL-DEC)
IS ONLY 14.0 INCHES WHICH IS 11.6 INCHES BELOW THE NORMAL 25.6 INCHES.
FOR THE CALENDAR YEAR (JAN-DEC)...44.6 INCHES OF SNOW WAS COLLECTED
WHICH IS 17.0 INCHES BELOW NORMAL. ALTHOUGH THE YEAR FINISHED JUST
SLIGHTLY ABOVE NORMAL 50.3 DEGREES VERSUS 50.1 DEGREES...THERE WERE
15 TEMPERATURE RECORDS EITHER SET OR TIED. THERE WERE TWENTY 90
DEGREE DAYS WHICH WAS 13 BELOW NORMAL...17 DAYS WHERE THE MAXIMUM
TEMPERATURE WAS 32 DEGREES OR LOWER WHICH IS 5 BELOW NORMAL. ALSO
THERE WERE 157 MORNINGS WHERE THE LOW TEMPERATURE DIPPED TO THE
FREEZING MARK OR BELOW AND 6 OCCURRENCES OF MINIMUM TEMPERATURES AT
OR BELOW THE ZERO DEGREE MARK. MERCURY READINGS DURING THE YEAR RANGED
FROM A HIGH OF 99 DEGREES DOWN TO A LOW OF -11 DEGREES...NEITHER OF
WHICH ARE NEW RECORDS. THE THUNDERSTORM SEASON FINISHED WITH 64
OBSERVED THUNDERSTORMS WHICH IS 22 ABOVE NORMAL. OBSERVATIONS
REGISTERED 21 OCCURRENCES OF DENSE FOG...1/4 MILE VISIBILITY OR LESS
WHICH WAS 11 ABOVE NORMAL. AVERAGE WIND SPEED OF THE YEAR WAS 9.9
MPH...1.3 MPH ABOVE AVERAGE. THE MAXIMUM WIND GUST WAS 61 MPH FROM A
NORTHERLY DIRECTION (010).
AVG AVG MONTH MONTH EXTRM EXTRM PRECIP SNOW HDD CDD
MAX MAX AVG NORMAL HIGH LOW FALL
JAN 45.5 18.2 31.9 29.2 63 -11 0.23 4.6 1022 0
FEB 41.9 19.9 30.9 33.2 67 -9 0.21 8.9 984 0
MAR 62.0 30.7 46.4 39.6 79 18 0.14 1.8 569 0
APR 59.6 35.4 47.5 47.6 81 23 1.76 15.3 519 0
MAY 73.9 44.7 59.3 57.2 88 28 1.30 T 192 23
JUN 76.9 50.5 63.7 67.6 98 41 2.33 0.0 99 67
JUL 85.0 56.7 70.9 73.4 99 49 2.52 0.0 77 201
AUG 82.4 54.0 68.2 71.7 96 42 2.84 0.0 31 137
SEP 77.6 47.7 62.7 62.4 90 37 1.99 0.0 131 67
OCT 65.6 36.1 50.9 51.0 79 24 0.86 1.4 431 0
NOV 49.0 25.2 37.1 37.5 72 -1 0.45 10.0 831 0
DEC 48.3 21.4 34.9 30.3 67 -9 0.04 2.6 926 0
ANN 64.0 36.7 50.3 50.1 99 -11 14.67 44.6 5752 495
SEASON 14.0 2367
***NOTE: BOTH SNOWFALL AND HEATING DEGREE DAYS ARE TOTALED ON SEASONAL
BASIS (JUL 1-JUN 30) NOT ON YEARLY BASIS (JAN 1 TO DEC 31).
***NOTE: SNOWFALL LAND SUNSHINE DATA ARE MEASURED BY COOP OBSERVERS
NEAR THE FORMER STAPLETON INTERNATIONAL AIRPORT IN DENVER COUNTY.
TEMPERATURE:
AVERAGE ANNUAL HIGH 65.4 NORMAL 64.2 DEPARTURE 1.2
AVERAGE ANNUAL LOW 36.7 NORMAL 35.8 DEPARTURE 0.9
AVERAGE 2004 TEMPERATURE 50.3 NORMAL 50.1 DEPARTURE 0.2
HIGHEST 2004 TEMPERATURE 99 ON JUL 13
LOWEST 2004 TEMPERATURE -11 ON JAN 05
DAYS WITH MAXIMUM 90 OR ABOVE 20 NORMAL 33 DEPARTURE -13
DAYS WITH MAXIMUM 32 OR BELOW 17 NORMAL 22 DEPARTURE -5
DAYS WITH MINIMUM 32 OR BELOW 167 NORMAL 156 DEPARTURE 1
DAYS WITH MINIMUM 0 OR BELOW 6 NORMAL 9 DEPARTURE -3
TEMPERATURE RECORDS:
NUMBER OF DAILY MAXIMUMS TIED OR ESTABLISHED 4
NUMBER OF DAILY MINIMUMS TIED OR ESTABLISHED 5
NUMBER OF DAILY LOW MAXIMUMS TIED OR ESTABLISHED 5
NUMBER OF DAILY HIGH MINIMUMS TIED OR ESTABLISHED 1
COOLING DEGREE DAYS:
YEARLY TOTAL 495 NORMAL 696 DEPARTURE -201
HEATING DEGREE DAYS:
JUL 2001-JUN 2002 5934 NORMAL 6128 DEPARTURE -194
JUL 2002-JUN 2003 6022 NORMAL 6128 DEPARTURE -106
JUL 2003-DEC 2003 2363 NORMAL 2486 DEPARTURE -123
JUL 2003-JUN 2004 5748 NORMAL 6128 DEPARTURE -380
JUL 2004-DEC 2004 2748 NORMAL 2486 DEPARTURE +262
LAST FREEZE OF THE SPRING 05/14/04 05/11/03 05/24/02
FIRST FREEZE OF THE FALL 10/14/04 09/14/03 10/04/02
LAST SNOW OF THE SPRING 05/13/04 05/10/03 05/25/02
FIRST SNOW OF THE FALL 11/01/04 11/06/03 10/24/02
FIRST 90 DEGREE DAY 06/07/04 05/29/03 05/30/02
LAST 90 DEGREE DAY 09/02/04 08/27/03 09/07/02
PRECIPITATION (IN INCHES):
YEARLY TOTAL 14.67 NORMAL 15.81 DEPARTURE -1.14
DAYS WITH .01 OR GREATER 83 NORMAL 89 DEPARTURE -6
GREATEST IN 24 HOURS 1.62 ON 8/18 (RECORD)
SNOWFALL (IN INCHES):- TAKEN BY COOP OBSERVERS NEAR THE FORMER
STAPLETON INTERNATIONAL AIRPORT.
JAN 2003 - DEC 2003 60.5 NORMAL 61.7 DEPARTURE -1.2
JUL 2003 - JUN 2004 38.0 NORMAL 61.7 DEPARTURE -23.7
JAN 2004 - DEC 2004 44.6 NORMAL 61.7 DEPARTURE -17.1
JUL 2004 - DEC 2004 14.0 NORMAL 26.6 DEPARTURE -11.6
WIND (IN MILES PER HOUR):
AVERAGE SPEED 9.9 NORMAL 8.6 DEPARTURE 1.3
PEAK WIND GUST 61 7/7/04
PEAK WIND DIRECTION 310
SEA LEVEL PRESSURE (IN INCHES OF MERCURY):
HIGHEST 30.67 ON DEC 13
LOWEST 29.12 ON MAY 11
MISCELLANEOUS WEATHER:
DAYS WITH THUNDERSTORMS 64 NORMAL 42 DEPARTURE 22
DAYS WITH HEAVY FOG 21 NORMAL 10 DEPARTURE 11
PERCENT POSSIBLE SUNSHINE 72% NORMAL 69% DEPARTURE 3%
DAYS WITH HAIL 0 NORMAL N/A
DAYS WITH TORNADO/FUNNEL CLOUD 1 NORMAL N/A
BENTON
