A Preview Of Denver's October Weather

...OCTOBER IS THE FIRST FULL MONTH OF THE FALL SEASON...

OCTOBER IS NORMALLY ONE OF THE QUIETEST WEATHER MONTHS IN DENVER WITH AN ABUNDANCE OF MILD SUNNY DAYS AND CLEAR COOL NIGHTS. IT HAS THE SECOND HIGHEST AMOUNT OF SUNSHINE WITH 72 PERCENT. THE MONTH WITH THE HIGHEST PERCENTAGE IS SEPTEMBER WITH 74 PERCENT AND COINCIDENTLY THE MONTH AFTER OCTOBER...NOVEMBER IS ONE OF THE LOWEST SUNSHINE MONTHS WITH ONLY 64 PERCENT. IN MOST YEARS... OCTOBER BRINGS THE FIRST TASTE OF WINTER WITH THE AVERAGE DATE OF THE FIRST FREEZE ON THE 7TH AND AVERAGE FIRST SNOW ON THE 15TH.

THERE IS A GREAT TEMPERATURE EXTREME DIFFERENCE FOR OCTOBER. THE RECORD HIGH OCTOBER TEMPERATURE IS 90 DEGREES SET OCTOBER 1ST 1892, WHILE THE COLDEST OCTOBER TEMPERATURE IS 2 BELOW ZERO SET ON OCTOBER 29TH 1917. ON 10/02/1969...THE DENVER TEMPERATURE WAS 85 DEGREES. ON OCTOBER 3RD AND 4TH...15 INCHES OF SNOW FELL ACROSS THE AREA. IN 1991...A RECORD HIGH OF 89 DEGREES WAS SET ON THE 16TH FOLLOWED BY RECORD LOWS OF 7 DEGREES ON THE 30TH AND 10 DEGREES ON THE 31ST.

ONE OF DENVER'S MOST FAMOUS SNOWSTORMS WAS THE "BRONCO BLIZZARD" WHICH OCCURRED ON OCTOBER 15TH 1984. THIS STORM WAS WITNESSED BY A NATIONWIDE TELEVISION AUDIENCE ON MONDAY NIGHT FOOTBALL. BY THE TIME THE GAME ENDED...THE ENTIRE FIELD WAS COVERED BY 3 TO 4 INCHES OF SNOW. BY THE TIME THE STORM ENDED...OVER A FOOT OF SNOW HAD FALLEN OVER MOST OF THE METRO AREA. OCTOBER 1997 TURNED OUT TO BE A SNOW RECORD SETTER. THE BLIZZARD OF OCTOBER 24TH-25TH PRODUCED 19.1 INCHES OF SNOW IN A 24 HOUR PERIOD SETTING A NEW OCTOBER RECORD. BEFORE THE STORM ENDED...21.9 INCHES OF SNOW HAD FALLEN ON THE OLD STAPLETON INTERNATIONAL AIRPORT DURING THE 2 DAY PERIOD. THE MONTH FINISHED WITH 22.1 INCHES MAKING IT THE 3RD SNOWIEST OCTOBER IN DENVER HISTORY.

...LOOKING BACK AT OCTOBER 2003... ...OCTOBER 2003 TIES AS 5TH DRIEST DENVER OCTOBER...

FOR 29 DAYS...OCTOBER 2003 WAS TIED WITH 1934 AS THE DRIEST OCTOBER IN DENVER WEATHER HISTORY WITH A TOTAL OF ONLY A TRACE. THEN ON THE LAST 2 DAYS OF THE MONTH...A TOTAL OF .08 INCH OF RAIN...DRIZZLE AND FREEZING DRIZZLE COLLECTED IN THE RAIN BUCKET AT THE DENVER INTERNATIONAL AIRPORT. SOME LOCATIONS AROUND THE METRO AREA RECORDED LIGHT SNOW BUT LITTLE IF ANY ACCUMULATION. THE 2 DAYS OF MEASURABLE PRECIPITATION MOVED OCTOBER 2003 INTO A 5TH PLACE TIE WITH 2001 IN THE DRIEST DENVER OCTOBER CATEGORY. NO SNOW HAD BEEN RECORDED THROUGH OCTOBER 31ST WHICH IS 6.2 INCHES BELOW NORMAL. THE PEAK WIND WAS 47 MPH FROM A NORTHWEST DIRECTION.

FOR TEMPERATURES...THE MONTH WAS IN THE TOP 10 WARMEST ALL THE WAY THROUGH OCTOBER 29TH. THEN THE COLD FRONT CAME THROUGH THE CITY AND THE HIGH OF 41 AND 30 DEGREES ON THE LAST 2 DAYS OF THE MONTH RESPECTIVELY DROPPED THE AVERAGE TEMPERATURE TO 55.1 DEGREES AND KNOCKED OCTOBER 2003 OUT OF THE TOP TEN WARMEST. THE MONTH DID FINISH 4.1 DEGREES ABOVE NORMAL RANGING IN TEMPERATURE FROM A HIGH OF 86 DEGREES DOWN TO A LOW OF 23 DEGREES. THERE WERE 9 DAYS WITH LOW READINGS AT OR BELOW FREEZING AND 1 DAY THAT THE HIGH DID NOT GET ABOVE FREEZING. SIX TEMPERATURE RECORDS WERE SET OR TIED.

THE DENVER OUTLOOK FOR OCTOBER 2004: THE NATIONAL WEATHER SERVICE 30-DAY OUTLOOK MODEL INDICATES THAT TEMPERATURES WILL BE AT OR NEAR NORMAL BUT PRECIPITATION IS EXPECTED TO BE ABOVE NORMAL.

DENVER NORMALS AND RECORDS ARE LISTED BELOW:

************************************************************************* ...DENVER'S AVERAGE AND RECORD OCTOBER STATISTICS... (NORMALS PERIOD 1971-2000)

...TEMPERATURE...

AVERAGE HIGH......................... 66.0 AVERAGE LOW.......................... 35.9 MONTHLY MEAN......................... 51.0 DAYS WITH HIGH 90 OR ABOVE........... 0 DAYS WITH HIGH 32 OR BELOW........... 0* (* = LESS THAN 1) DAYS WITH LOW 32 OR BELOW........... 9 DAYS WITH LOWS ZERO OR BELOW......... 0

...PRECIPITATION...

MONTHLY MEAN......................... 0.99 INCH DAYS WITH MEASURABLE PRECIPITATION... 5 AVERAGE SNOWFALL..................... 4.1 INCHES DAYS WITH 1.0 INCH OR MORE SNOWFALL.. 1

*NOTE* SNOWFALL AND SNOW DEPTH ARE MEASURED BY COOPERATIVE OBSERVERS AT THE FORMER WEATHER SERVICE FORECAST OFFICE JUST EAST OF THE FORMER STAPLETON INTERNATIONAL AIRPORT.

...MISCELLANEOUS OCTOBER AVERAGES...

HEATING DEGREE DAYS.................. 436 COOLING DEGREES DAYS................. 0 WIND SPEED (MPH)..................... 7.8 WIND DIRECTION....................... SOUTH DAYS WITH THUNDERSTORMS.............. 1 DAYS WITH DENSE FOG.................. 1 PERCENT OF SUNSHINE POSSIBLE......... 72

...OCTOBER EXTREMES...

RECORD HIGH................ 90 DEGREES ON 10/01/1892 RECORD LOW................. -2 DEGREES ON 10/29/1917 WARMEST.................... 59.9 DEGREES IN 1950 COLDEST.................... 39.0 DEGREES IN 1969 WETTEST.................... 4.17 INCHES IN 1969 MAXIMUM 24 HOUR RAINFALL... 1.71 INCHES IN 1947 DRIEST..................... TRACE IN 1934 SNOWIEST................... 31.2 INCHES IN 1969 MAXIMUM 24 HOUR SNOWFALL... 19.1 INCHES IN 1997 (BLIZZARD OF 1997) LEAST SNOWIEST............. 0.0 (2003 AND 13 PREVIOUS YEARS) REPORTED NO SNOW DURING OCTOBER)