NATIONAL WEATHER SERVICE DENVER COLORADO
155 PM MST SUN JAN 2 2000
...DENVER'S WEATHER SUMMARY FOR 1999...
1999 FINISHED THE YEAR WARMER AND WETTER THAN NORMAL. IN FACT...1999 FINISHED
AS THE 8TH WETTEST YEAR IN DENVER WEATHER HISTORY. FINISHING THIS YEAR WITH
20.95 INCHES...4.84 INCHES ABOVE NORMAL...BUT STILL 2.36 INCHES BELOW THE
WETTEST YEAR WHICH OCCURRED IN 1967 WHEN 23.31 INCHES WAS COLLECTED IN THE RAIN
BUCKET. MARCH 1999 BECAME THE 3RD DRIEST MARCH WITH ONLY A 0.19 INCH TOTAL.
APRIL 1999 BECAME THE SECOND WETTEST APRIL WITH 5.86 INCHES. IN A 24 HOUR
PERIOD...2.06 INCHES WAS MEASURED BETWEEN APRIL 29TH AND APRIL 30TH. APRIL
ALSO BECAME THE 7TH COLDEST APRIL WITH AN AVERAGE TEMPERATURE OF 42.6 DEGREES.
ON JULY 28TH...A NEW JULY WIND GUST RECORD WAS ESTABLISHED WHEN A 64 MPH WIND
GUST WAS CLOCKED AT THE DENVER INTERNATIONAL AIRPORT. THE OLD RECORD WAS 61
MPH. THEN IN NOVEMBER 1999...WITH AN AVERAGE TEMPERATURE OF 47.1 DEGREES...IT
BECAME THE SECOND WARMEST NOVEMBER. DURING 1999...THERE WERE 10 TEMPERATURE
RECORDS EITHER SET OR TIED. THE WARMEST EVER DENVER YEAR OCCURRED IN 1934 WITH
AN AVERAGE TEMPERATURE OF 54.8 DEGREES...THIS YEAR THE AVERAGE TEMPERATURE WAS
51.3 DEGREES WHICH WAS 2.4 DEGREES ABOVE NORMAL. SNOWFALL FOR THE CALENDAR
YEAR FINISHED WITH A TOTAL OF 53.4 INCHES WHICH WAS 6.9 INCHES BELOW NORMAL.
THE SEASONAL SNOWFALL TOTAL FROM JULY 1998 TO JUNE 1999 WAS 44.5 INCHES WHICH
WAS 15.8 INCHES BELOW NORMAL. FROM JULY 1999 TO DECEMBER 1999...SNOWFALL TOTAL
IS RIGHT ON THE NORMAL OF 21.7 INCHES.
************************************************************************
...DENVER WEATHER STATISTICS FOR 1999...
----------TEMPERATURE--------- PCPN SNOW HEATING COOLING
AVG AVG MONTH MONTH EXTREMES FALL DEGREE DEGREE
MAX MIN AVG NORM HIGH LOW DAYS DAYS
JAN 46.5 20.9 33.7 28.2 63 -3 0.38 6.4 962 0 JAN
FEB 54.3 22.9 38.6 32.3 69 11 0.15 1.3 731 0 FEB
MAR 59.7 27.7 43.7 38.0 78 15 0.19 4.2 654 0 MAR
APR 54.6 30.5 42.6 46.8 74 15 5.86 19.7 666 0 APR
MAY 68.0 41.6 54.8 55.9 82 29 2.37 TRACE 310 2 MAY
JUN 78.3 50.1 64.2 65.6 90 40 2.52 0.0 85 69 JUN
JUL 87.5 60.3 73.9 72.1 95 51 3.84 0.0 1 283 JUL
AUG 83.5 58.9 71.2 69.8 92 50 3.37 0.0 3 203 AUG
SEP 72.6 45.8 59.2 61.0 86 29 1.20 3.1 194 30 SEP
OCT 68.3 36.6 52.5 50.2 83 19 0.31 4.8 383 2 OCT
NOV 62.9 31.3 47.1 37.6 78 13 0.47 8.4 533 0 NOV
DEC 45.3 22.2 33.8 29.6 66 10 0.29 5.4 962 0 DEC
ANN 65.1 37.4 51.3 48.9 95 -3 20.95 53.4 5484 589 ANN
***NOTE: OFFICIALLY BOTH SNOWFALL AND HEATING DEGREE DAYS ARE TOTALED ON
A SEASONAL BASIS (JUL 1 TO JUN 30)...NOT ON A YEARLY BASIS (JAN 1 TO DEC
31)***
AVERAGE HIGH FOR THE YEAR 65.1 NORMAL 63.9 DEPARTURE PLUS 1.2
AVERAGE LOW FOR THE YEAR 37.4 NORMAL 33.9 DEPARTURE PLUS 3.5
AVERAGE 1999 TEMPERATURE 51.3 NORMAL 48.9 DEPARTURE PLUS 2.4
HIGHEST TEMPERATURE 95 ON JUL 4TH
LOWEST TEMPERATURE -3 ON JAN 3RD
DAYS WITH MAX 90 OR ABOVE 16 NORMAL 33 DEPARTURE MINUS 17
DAYS WITH MAX 32 OR BELOW 12 NORMAL 22 DEPARTURE MINUS 10
DAYS WITH MIN 32 OR BELOW 159 NORMAL 156 DEPARTURE PLUS 3
DAYS WITH MIN 0 OR BELOW 1 NORMAL 9 DEPARTURE MINUS 8
TEMPERATURE RECORDS....
NUMBER OF DAILY MAXIMUMS TIED OR ESTABLISHED......... 4
NUMBER OF DAILY MINIMUMS TIED OR ESTABLISHED......... 4
NUMBER OF DAILY LOW MAXIMUMS TIED OR ESTABLISHED..... 1
NUMBER OF DAILY HIGH MINIMUMS TIED OR ESTABLISHED.... 1
COOLING DEGREE DAYS....
YEARLY TOTAL.... 589 NORMAL.... 534 DEPARTURE PLUS 55
HEATING DEGREE DAYS.... **SEE NOTE ABOVE FOR DATES**
JUL 1997 - JUN 1998 TOTAL 6261 NORMAL 6363 DEPARTURE MINUS 102
JAN 1998 - DEC 1998 TOTAL 5946 NORMAL 6363 DEPARTURE MINUS 417
JUL 1998 - JUN 1999 TOTAL 5710 NORMAL 6363 DEPARTURE MINUS 653
JAN 1999 - JUN 1999 TOTAL 3408 NORMAL 3812 DEPARTURE MINUS 404
JUL 1999 - DEC 1999 TOTAL 2076 NORMAL 2551 DEPARTURE MINUS 475
JAN 1999 - DEC 1999 TOTAL 5484 NORMAL 6363 DEPARTURE MINUS 879
LAST FREEZE OF THE SPRING..05/17/99 1998...04/29/98 1997...05/09/97
FIRST FREEZE OF THE FALL...09/28/99 1998...10/06/98 1997...10/12/97
LAST SNOW OF THE SPRING....05/11/99 1998...04/20/98 1997...05/02/97
FIRST SNOW OF THE FALL.....09/28/99 1998...11/01/98 1997...10/12/97
FIRST 90 DEGREE DAY........06/25/99 1998...06/25/98 1997...06/01/97
LAST 90 DEGREE DAY.........08/27/99 1998...09/25/98 1997...08/24/97
PRECIPITATION (IN INCHES)....(THROUGH 11/30)
YEARLY TOTAL..........*** 20.95 NORMAL 16.11 DEPARTURE PLUS 4.84
DAYS WITH .01 OR GREATER 81 NORMAL 89 DEPARTURE MINUS 8
GREATEST IN 24 HOURS... 2.06 ON APR 29-30TH
*** 8TH WETTEST YEAR IN DENVER WEATHER HISTORY
SNOWFALL (IN INCHES).... **SEE NOTE ABOVE FOR DATES**
**NOTE: SNOWFALL IS MEASURED AT THE COOPERATIVE WEATHER SITE AT THE
FORMER STAPLETON INTERNATIONAL AIRPORT.
1998-1999 SEASON (JUL-JUN) 44.5 NORMAL 60.3 DEPARTURE MINUS 15.8
GREATEST IN 24 HOURS 9.0 APR 22-23RD 1999
GREATEST DEPTH 5 APR 2ND 1999
JAN - DEC 1999 53.4 NORMAL 60.3 DEPARTURE MINUS 6.9
GREATEST IN 24 HOURS 9.0 APR 22-23RD
GREATEST DEPTH 5 APR 2ND
JUL - DEC 1999 21.7 NORMAL 21.7 DEPARTURE +/- 0.0
GREATEST IN 24 HOURS 8.4 NOV 21-22ND
GREATEST DEPTH 7 NOV 22ND
WINDS (IN MILES PER HOUR)....
AVERAGE SPEED 10.2 NORMAL 8.6 DEPARTURE PLUS 1.6
PEAK GUST 64 JUL 28TH (RECORD JULY WIND GUST)
PEAK GUST DIRECTION (130 - SOUTHEAST)
SEA LEVEL PRESSURE (IN INCHES OF MERCURY)....
HIGHEST 30.69 ON NOV 1ST
LOWEST 29.10 ON MAY 3RD
MISCELLANEOUS WEATHER....
DAYS WITH THUNDERSTORMS 51 NORMAL 42 DEPARTURE PLUS 9
DAYS WITH HEAVY FOG 21 NORMAL 10 DEPARTURE PLUS 11
PERCENT OF POSSIBLE SUNSHINE 73 NORMAL 69 DEPARTURE PLUS 4
DAYS WITH HAIL 5 NORMAL N/A
DAYS WITH TORNADO/FUNNEL CLOUD 1 NORMAL N/A
BENTON
RSS Feed