National Weather Service Weather Forecast Office

November 2012: Very Dry with Near Normal Temperatures

...A LOOK BACK AT THE CLIMATE FOR THE MONTH OF NOVEMBER 2012 FOR
CHICAGO AND ROCKFORD...

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 49.0 DEGREES WHICH IS
0.8 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS 32.0
DEGREES WHICH IS 0.4 DEGREES BELOW NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 40.5 DEGREES WHICH IS 0.2 DEGREES ABOVE NORMAL.
0.95 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 2.2 INCHES BELOW
NORMAL. A TRACE OF SNOW WAS RECORDED WHICH IS 1.2 INCHES BELOW
NORMAL.

NO RECORDS WERE SET OR TIED AT CHICAGO FOR THE MONTH OF NOVEMBER.

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 49.0 DEGREES WHICH
IS 1.4 DEGREES ABOVE NORMAL.  THE AVERAGE LOW TEMPERATURE WAS 29.4
DEGREES WHICH IS 0.9 DEGREES BELOW NORMAL.  THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 39.2 DEGREES WHICH IS 0.3 DEGREES ABOVE NORMAL.
0.60 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 1.98 INCHES BELOW
NORMAL AND RANKS AS THE 8TH DRIEST NOVEMBER ON RECORD IN ROCKFORD. A
TRACE OF SNOW WAS RECORDED WHICH IS 1.7 INCHES BELOW
NORMAL.

NO RECORDS WERE SET OR TIED AT ROCKFORD FOR THE MONTH OF NOVEMBER.

$$

November 2012 Monthly Climate Report (CLM) for Chicago-O'Hare

November 2012 CLM for Rockford

November 2012 Precipitation Maps 
 
November 2012 Total Precipitation
Departure from 1981-2010 Normal
Percent of 1981-2010 Normal

Fall 2012: Dry Except for Areas Impacted by Remnants of Isaac; Near to Slightly Below Normal Temperatures 

...A LOOK BACK AT THE CLIMATE FOR METEOROLOGICAL FALL 2012 FOR
CHICAGO AND ROCKFORD...

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE FOR THE FALL SEASON WAS
61.3 DEGREES WHICH IS 0.5 DEGREES BELOW THE 1981 TO 2010 AVERAGE OF
61.8 DEGREES. THE AVERAGE LOW TEMPERATURE WAS 42.7 DEGREES WHICH IS
0.5 DEGREES BELOW THE 1981 TO 2010 AVERAGE OF 43.2 DEGREES. THE MEAN
AVERAGE TEMPERATURE FOR THE SEASON WAS 52 DEGREES WHICH IS 0.5
DEGREES BELOW THE NORMAL AVERAGE OF 52.5 DEGREES.

THE HIGHEST TEMPERATURE OF THE FALL...90 DEGREES...OCCURED ON
SEPTEMBER 4TH. THE LOWEST TEMPERATURE OF THE FALL...17
DEGREES...OCCURRED ON NOVEMBER 27TH. THE LOW TEMPERATURES FELL TO 32
DEGREES OR LOWER ON 17 DAYS THIS FALL.

A TOTAL OF 5.86 INCHES OF PRECIPITATION WERE RECORDED DURING THIS
PAST FALL...WHICH IS 3.65 INCHES BELOW NORMAL.

THERE WERE NO DAILY RECORDS BROKEN OR TIED DURING THE MONTHS OF
METEOROLOGICAL FALL 2012 AT CHICAGO.

HERE IS A SUMMARY OF EACH FALL MONTH AT CHICAGO.

SEPTEMBER...SEPTEMBER 2012 WAS THE FIRST MONTH WITH BELOW NORMAL
TEMPERATURES IN CHICAGO SINCE SEPTEMBER 2011...ENDING A STRETCH OF
11 CONSECUTIVE MONTHS WITH ABOVE NORMAL TEMPERATURES.

OCTOBER...OCTOBER 2012 WAS THE WETTEST MONTH OF A DRY FALL IN
CHICAGO...WITH 3.15 INCHES OF PRECIPITATION BEING EXACTLY NORMAL FOR
THE MONTH.

NOVEMBER...NOVEMBER 2012...WITH ONLY 0.95 INCHES OF
PRECIPITATION...FINISHED TIED WITH 1938 AND 1939 AS THE 16TH DRIEST
NOVEMBER ON RECORD IN CHICAGO. RECORDS GO BACK TO 1971.

...................................................................

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE FOR THE FALL SEASON WAS
62.2 DEGREES WHICH IS 0.3 DEGREES ABOVE THE 1981 TO 2010 NORMAL
AVERAGE OF 61.9 DEGREES. THE AVERAGE LOW TEMPERATURE WAS 39.6
DEGREES WHICH IS 1.5 DEGREES BELOW THE 1981 TO 2010 NORMAL AVERAGE
OF 41.1 DEGREES. THE MEAN AVERAGE TEMPERATURE FOR THE SEASON WAS
50.9 DEGREES WHICH IS 0.6 DEGREES BELOW THE NORMAL MEAN AVERAGE
TEMPERATURE OF 51.5 DEGREES.

THE HIGH TEMPERATURE REACHED 90 DEGREES OR GREATER ON 3 DAYS THIS
FALL...WITH THE HIGHEST TEMPERATURE OF 96 DEGREES OCCURRING ON
SEPTEMBER 3RD AND 4TH. THE LOWEST TEMPERATURE OF THE FALL...11
DEGREES...OCCURRED ON NOVEMBER 27TH. THE LOW TEMPERATURE FELL TO 32
DEGREES OR LOWER ON 27 DAYS THIS FALL.

A TOTAL OF 4.76 INCHES OF PRECIPITATION WAS RECORDED DURING THIS
PAST FALL...WHICH WAS 3.84 INCHES BELOW THE SEASONAL NORMAL. THIS
PLACED THE FALL OF 2012 AS THE 14TH DRIEST FALL ON
RECORD IN ROCKFORD. RECORDS GO BACK TO 1906.

THERE WERE NO DAILY RECORDS BROKEN OR TIED DURING THE MONTHS
OF METEOROLOGICAL FALL 2012 AT ROCKFORD.

HERE IS A SUMMARY OF EACH FALL MONTH.

SEPTEMBER...THE 96 DEGREE HIGH TEMPERATURE ON LABOR DAY...SEPTEMBER
3RD...TIED SEPTEMBER 4TH 1922 FOR THE WARMEST LABOR DAY ON RECORD IN
ROCKFORD.

OCTOBER...OCTOBER 2012 WAS THE WETTEST MONTH OF A VERY DRY FALL IN
ROCKFORD...BUT THE 2.42 INCHES OF PRECIPITATION RECORDED WAS STILL
0.25 INCHES BELOW THE 1981-2010 NORMAL PRECIPITATION AMOUNT FOR
OCTOBER.

NOVEMBER...WITH ONLY 0.6 INCHES OF PRECIPITATION...NOVEMBER 2012 WAS
THE 8TH DRIEST NOVEMBER ON RECORD IN ROCKFORD.

$$

Fall 2012 Seasonal Climate Report (CLS) for Chicago-O'Hare

Fall 2012 CLS for Rockford

Fall 2012 Precipitation Maps

Fall 2012 Total Precipitation
Departure from 1981-2010 Normal
Percent of 1981-2010 Normal

Total Rainfall from the Remnants of Tropical Cyclone Isaac- Most Rain fell on 9/1