Record Monthly Temperatures and Snowfall in October

For other record temperature posts, see:
Record Heat
Record Cold

Midnight Update: October was the second coldest in Denver:

THE MONTH'S AVERAGE TEMPERATURE WAS ONLY 42.9 DEGREES WHICH MOVED OCTOBER 2009 
INTO THE 2ND COLDEST OCTOBER IN DENVER WEATHER HISTORY. 
THE COLDEST OCTOBER WAS A VERY FRIGID 39.0 DEGREES WHICH WAS RECORDED IN 1969. 
THERE WERE 17 DAYS WHEN THE LOW TEMPERATURES WERE 32 DEGREES OR LOWER WHEREAS 
THE NORMAL AMOUNT IS ONLY 9.  THREE HIGH TEMPERATURES
DID NOT MAKE IT TO THE FREEZING MARK WHICH IS 3 ABOVE NORMAL. 

Original post:
Several monthly cold temperature and snowfall records were set or approached for October in Wyoming, Oklahoma, South Dakota, Nebraska, and Kansas:

Wyoming:
CHEYENNE WY SET NEW RECORDS FOR COLD AND SNOW DURING THE MONTH OF   
OCTOBER 2009.  A TOTAL OF 28.0 INCHES OF SNOWFALL WAS MEASURED   
DURING THE MONTH...WHICH SET A NEW RECORD FOR THE MOST SNOWFALL EVER   
RECORDED IN CHEYENNE DURING OCTOBER.  THE OLD RECORD WAS 23.1 INCHES   
WHICH FELL IN 1906.  
  
CHEYENNE ALSO SET A NEW RECORD FOR THE COLDEST AVERAGE TEMPERATURE   
FOR THE MONTH.  THE AVERAGE TEMPERATURE FOR OCTOBER 2009 WAS 37.0   
DEGREES WHICH JUST EDGED OUT THE PREVIOUS LOWEST OCTOBER AVERAGE OF   
37.1 DEGREES SET IN 1969.  

Oklahoma: 
THE AVERAGE MONTHLY TEMPERATURE AT THE TULSA INTERNATIONAL AIRPORT   
FOR OCTOBER 2009 WAS 55.9 DEGREES WHICH WAS 6.7 DEGREES BELOW   
NORMAL. THIS TIES WITH OCTOBER 1925 FOR THE COLDEST OCTOBER ON   
RECORD. THE DAILY HIGH TEMPERATURES WERE THE PRIMARY FACTOR IN THIS   
RECORD SETTING EVENT. THE OBSERVED AVERAGE DAILY MAXIMUM TEMPERATURE   
OF 64.5 DEGREES WAS 9.5 DEGREES BELOW NORMAL...WHILE THE DAILY   
AVERAGE MINIMUM OF 47.2 DEGREES FELL SHORT BY 3.9 DEGREES. THERE   
WERE 8 DAYS IN THE MONTH WHERE THE AVERAGE DAILY TEMPERATURE WAS AT   
OR ABOVE NORMAL...WITH THE REMAINING 23 DAYS FALLING BELOW NORMAL BY   
-5 TO -18 DEGREES. THE WARMEST TEMPERATURE WAS 84 DEGREES OCCURRED   
ON THE FIRST DAY OF THE MONTH...WITH THE COLDEST READING OF 35   
DEGREES OBSERVED ON THE 18TH OF OCTOBER. THERE WERE 284 HEATING   
DEGREES DAYS DURING THE MONTH WHICH WAS ABOVE NORMAL BY 132 DEGREES

South Dakota:
THE AVERAGE TEMPERATURE FOR THE MONTH OF OCTOBER AT THE RAPID CITY   
AIRPORT SOUTH DAKOTA WAS 38.7 DEGREES. THE PREVIOUS RECORD FOR   
OCTOBER WAS 39.0 DEGREES BACK IN 2002.  

Nebraska:
THE AVERAGE TEMPERATURE FOR THE MONTH OF OCTOBER 2009 IN   
SCOTTSBLUFF WAS 40.5 DEGREES.  THIS SET A NEW RECORD FOR THE LOWEST   
AVERAGE TEMPERATURE IN SCOTTSBLUFF FOR THE MONTH OF OCTOBER.  THE   
PREVIOUS RECORD WAS 40.8 DEGREES WHICH OCCURRED IN 1925.  

THE AVERAGE TEMPERATURE FOR THE MONTH OF OCTOBER 2009 IN CHADRON   
NEBRASKA WAS 40.0 DEGREES.  THIS SET A NEW RECORD FOR THE LOWEST   
AVERAGE TEMPERATURE EVER RECORDED IN CHADRON FOR THE MONTH OF   
OCTOBER.  THE PREVIOUS RECORD WAS 40.8 DEGREES WHICH OCCURRED IN   
2002.  

OCTOBER WAS A HISTORIC MONTH FOR SNOWFALL IN NORTH PLATTE. DURING THE   
MONTH...30.3 INCHES OF SNOW FELL WHICH WAS A WHOPPING 29.2 INCHES   
ABOVE THE NORMAL OF 1.1 INCHES. THE 30.3 INCHES WAS ALSO 1.9 INCHES   
ABOVE THE SEASONAL NORMAL OF 28.4 AND WE HAVEN'T EVEN REACHED WINTER   
YET! SNOWFALL RECEIVED IN OCTOBER 2009 BROKE THE OLD MONTHLY RECORD   
OF 15.7 INCHES WHICH FELL IN 1969. CONSIDERING ALL MONTHS...OCTOBER   
2009 WILL GO DOWN AS THE SNOWIEST MONTH EVER FOR NORTH PLATTE. THE   
30.3 INCHES RECEIVED...BROKE THE PREVIOUS RECORD OF 27.8 INCHES   
RECORDED IN MARCH 1912. IN ADDITION TO THE TWO MONTHLY RECORDS FOR   
SNOW...FOUR DAILY SNOWFALL RECORDS WERE BROKEN AND ONE RECORD WAS   
TIED. THESE ARE SUMMARIZED BELOW.   
  
DAILY SNOWFALL RECORDS IN OCTOBER 2009 FOR NORTH PLATTE  
  
DATE        AMOUNT          PREVIOUS RECORD AND YEAR  
  
 9           2.0                    0.1/1932  
10          11.8                    1.3/1987 *  
13         TRACE                  TRACE/1969 &  
22           4.2                    4.0/1906  
30           7.3                    4.0/1991    

Kansas:
THE AVERAGE TEMPERATURE IN GOODLAND KANSAS DURING THIS PAST  
OCTOBER WAS 43.7 DEGREES. THIS WAS THE COLDEST AVERAGE TEMPERATURE   
ON RECORD FOR THE MONTH OF OCTOBER. THE PREVIOUS RECORD WAS 44.3   
DEGREES SET IN OCTOBER 1925.  

...SECOND COOLEST OCTOBER AT WICHITA'S MID-CONTINENT AIRPORT  
  
OCTOBER 2009 FINISHED OUT THE MONTH BY GOING DOWN IN THE RECORD  
BOOKS AS THE SECOND COOLEST OCTOBER ON RECORD.  THE AVERAGE MONTHLY  
TEMPERATURE WAS 51.2 DEGREES WHICH IS 7.4 DEGREES BELOW NORMAL.  
THIS BEATS OUT THE PREVIOUS SECOND PLACE HOLDER FOR OCTOBER FROM  
1917 WHICH HAD AN AVERAGE MONTHLY TEMPERATURE OF 51.9 DEGREES.  THE  
COOLEST OCTOBER ON RECORD IS 49.0 DEGREES SET IN 1925.  

Meanwhile, monthly high temperature records were set in Florida:

AN ALL-TIME HOTTEST OCTOBER RECORD WAS SET IN MIAMI WITH AN AVERAGE   
TEMPERATURE OF 82.4 DEGREES FOR THE MONTH OF OCTOBER. THIS WAS 3.6   
DEGREES ABOVE AVERAGE, AND BROKE THE PREVIOUS WARMEST OCTOBER RECORD   
OF 82.05 DEGREES SET IN 2002. MIAMI OBSERVED 14 DAYS OF TEMPERATURES   
REACHING 90 DEGREES OR HIGHER, WHICH TIED THE RECORD FOR MOST NUMBER   
OF 90-PLUS DEGREE DAYS SET BACK IN 1989.   
  
MOORE HAVEN RECORDED A TOTAL OF 18 DAYS OF TEMPERATURES REACHING AT   
LEAST 90 DEGREES. THIS BROKE THE PREVIOUS RECORD OF 16 DAYS SET IN   
1986. LABELLE REGISTERED 22 DAYS OF 90-PLUS DEGREE TEMPERATURES, ONE   
DAY SHORT OF THE RECORD SET IN 2002.  

The National Climatic Data Center reports that 1,344 daily lowest minimum temperature records were set in October, and 616 daily highest maximum records were set.