November 1997 Climate Data for Pittsburgh, PA  
See Key below for explanation of abbreviations   
DATE  NOV 97  |DP|HEATING DD|SNOWFALL    |PRECIPITATION
   HI LO AV NR|DY|DY MON SEA|DAY MON SEAS| DAY  MON NORM   DEP  YEAR  NORM  DEP
01*55 47 51 47 +4 14  14 547   0   0    0  .60  .60  .08  +.52 27.89 31.16-3.27
02*54 40 47 47  0 18  32 565   0   0    0  .06  .66  .16  +.50 27.95 31.24-3.29
03*49 39 44 46 -2 21  53 586   0   0    0  .08  .74  .25  +.49 28.03 31.33-3.30
04*40 33 37 46 -9 28  81 614   T   T    T  .06  .80  .34  +.46 28.09 31.42-3.33
05*50 29 40 46 -6 25 106 639   0   T    T    0  .80  .43  +.37 28.09 31.51-3.24
06*54 31 43 46 -3 22 128 661   0   T    T  .04  .84  .52  +.32 28.13 31.60-3.47
07*43 40 42 45 -3 23 151 684   0   T    T 1.86 2.70  .61 +2.09 29.99 31.69-1.70
08*44 40 42 45 -3 23 174 707   0   T    T  .53 3.23  .70 +2.53 30.52 31.78-1.26
09*54 42 48 45 +3 17 191 724   0   T    T    0 3.23  .79 +2.44 30.52 31.87-1.35
10*42 39 41 44 -3 24 215 748   0   T    T    T 3.23  .88 +2.35 30.52 31.96-1.44
11*42 34 38 44 -6 27 242 775   T   T    T  .05 3.28  .97 +2.31 30.57 32.05-1.48
12*35 23 29 44-15 36 278 811 0.5 0.5  0.5    T 3.28 1.06 +2.22 30.57 32.14-1.57
13*39 22 31 43-12 34 312 845 0.5 1.0  1.0  .85 4.13 1.15 +2.98 31.42 32.23 -.81
14*39 32 36 43 -7 29 341 874   T 1.0  1.0  .50 4.63 1.25 +3.38 31.92 32.33 -.41
15*34 27 31 43-12 34 375 908 0.9 1.9  1.9  .04 4.67 1.35 +3.32 31.96 32.43 -.47
16*30 27 29 42-13 36 411 944 0.6 2.5  2.5    T 4.67 1.45 +3.22 31.96 32.53 -.57
.........
............
............
............   NORMALS 1961-90 RV
DATE  NOV 97  |DP|HEATING DD |SNOWFALL    |PRECIPITATION
   HI LO AV NR|DY|DY MON SEAS|DAY MON SEAS| DAY  MON NORM  DEP  YEAR  NORM  DEP
17*34 22 28 42-14 37 448  981   T 2.5  2.5    T 4.67 1.55+3.12 31.96 32.63 -.67
18*38 17 28 42-14 37 485 1018   0 2.5  2.5    0 4.67 1.65+3.02 31.96 32.73 -.77
19*48 33 41 41  0 24 509 1042   0 2.5  2.5    T 4.67 1.75+2.92 31.96 32.83 -.87
20*49 30 40 41 -1 25 534 1067   0 2.5  2.5    0 4.67 1.85+2.82 31.96 32.93 -.97
21*53 40 47 40 +7 18 552 1085   0 2.5  2.5  .08 4.75 1.95+2.80 32.04 33.03 -.99
22*44 40 42 40 +2 23 575 1108   0 2.5  2.5  .17 4.92 2.05+2.87 32.21 33.13 -.92
23*41 29 35 40 -5 30 605 1138   T 2.5  2.5    T 4.92 2.15+2.77 32.21 33.23-1.02
24*34 20 27 39-12 38 643 1176   T 2.5  2.5    T 4.92 2.25+2.67 32.21 33.33-1.12
25*46 19 33 39 -6 32 675 1208   T 2.5  2.5    T 4.92 2.35+2.57 32.21 33.43-1.22
26*51 43 47 39 +8 18 693 1226   0 2.5  2.5  .01 4.93 2.45+2.48 32.22 33.53-1.31
27*48 33 41 38 +3 24 717 1250   0 2.5  2.5    0 4.93 2.55+2.38 32.22 33.63-1.41
28*53 38 46 38 +8 19 736 1269   0 2.5  2.5  .86 5.79 2.65+3.14 33.08 33.73 -.65
29*52 46 49 37+12 16 752 1285   0 2.5  2.5  .05 5.84 2.75+3.09 33.13 33.83 -.70
30*53 38 46 37 +9 19 771 1304   0 2.5  2.5  .15 5.99 2.85+3.14 33.28 33.93 -.65


                           NOV 1997
TEMPERATURES......
AVERAGE MAXIMUM................................. 44.9 DEGREES
AVERAGE MINIMUM................................. 33.1 DEGREES
AVERAGE FOR MONTH............................... 39.0 DEGREES
DEPARTURE FROM NORMAL........................... -3.3 DEGREES
HIGHEST AND DATE................................55 ON THE 1ST
LOWEST AND DATE................................17 ON THE 18TH
NUMBER OF DAYS MAX TEMPERATURE 32 DEGREES OR BELOW........  1
NUMBER OF DAYS MIN TEMPERATURE 32 DEGREES OR BELOW........ 13
NIMBER OF DAYS MIN TEMPERATURE  0 DEGREES OR BELOW........  0
 
HEATING DEGREE DAYS.....................................  771
DEPARTURE FROM NORMAL...................................  +90
SEASONAL TOTAL HEATING.................................. 1304
COOLING DEGREE DAYS.....................................    0
DEPARTURE FROM NORMAL...................................    0
SEASONAL TOTAL COOLING..................................  538
 
PRECIPITATION DATA
TOTAL FOR THE MONTH............................  5.99 INCHES
DEPARTURE FROM NORMAL.......................... +3.14 INCHES
TOTAL FOR THE YEAR............................. 33.28 INCHES
DEPARTURE FROM NORMAL..........................  -.65 INCHES
MAXIMUM PRECIPITATION IN 24 HOURS.....1.86 INCHES ON THE 7TH
MONTHLY SNOWFALL...............................  2.5  INCHES
DEPARTURE FROM NORMAL.......................... -0.7  INCHES
MAXIMUM CALENDER DAY SNOWFALL...........0.9 INCH ON THE 15TH
 
NUMBER OF DAYS WITH PRECIPITATION 0.01 INCH OR MORE...... 17
NUMBER OF DAYS WITH PRECIPITATION 0.10 INCH OR MORE......  8
NUMBER OF DAYS WITH PRECIPITATION 0.50 INCH OR MORE......  6
NUMBER OF DAYS WITH PRECIPITATION 1.00 INCH OR MORE......  1
 
SUNSHINE DATA NOT AVAILABLE
 
...RECORDS...
THE 1.86 INCHES OF RAIN THAT FELL ON THE 7TH SET A NEW RECORD
FOR THE DATE.  MORE NOTABLE WAS THAT IT SET A NEW DAILY MAXIMUM
PRECIPITATION RECORD FOR THE MONTH OF NOVEMBER.
 
ALSO...NOVEMBER 1997 WAS THE 3RD WETTEST ON RECORD...SURPASSED ONLY
BY 11.05 INCHES IN 1985 AND 7.29 INCHES IN 1950.


 


 
...A COOL AUTUMN...
 
CLIMATOLOGISTS CONSIDER FALL TO BE THE MONTHS OF SEPTEMBER...OCTOBER...
AND NOVEMBER.  TEMPERATURES FOR THESE MONTHS AVERAGED 51.2 DEGREES...
WHICH IS 1.7 DEGREES BELOW NORMAL AND RANKS AS THE 12TH COLDEST AUTUMN
ON RECORD.
 
                     SEPTEMBER    OCTOBER      NOVEMBER     AUTUMN
1997 AVERAGE TEMP    62.1         52.6         39.0         51.2
COLDEST (YEAR)       58.6 (1962)  45.9 (1976)  33.1 (1976)  46.3 (1976)
NORMAL               63.9         52.4         42.3         52.9
 
ALSO...NOVEMBER 1997 WAS THE 3RD WETTEST NOVEMBER ON RECORD WITH 5.99
INCHES OF PRECIPITATION.  THIS IS SURPASSED ONLY BY 11.05 INCHES IN
1985 AND 7.29 INCHES IN 1950.
 
TEMPERATURE RECORDS FOR PITTSBURGH DATE BACK TO 1871 AND PRECIPITATION
RECORDS...THOUGH INCOMPLETE...DATE BACK TO 1836.




...GREATEST RAINFALL EVER RECORDED FOR 24 HOURS IN NOVEMBER AT
PITTSBURGH INTERNATIONAL AIRPORT...

THE HEAVY RAIN THAT FELL ACROSS WESTERN PENNSYLVANIA ON FRIDAY TOTALED
1.86 INCHES AT PITTSBURGH INTERNATIONAL AIRPORT. THIS AMOUNT NOT ONLY
SHATTERED THE 24 HOUR RAINFALL RECORD FOR NOVEMBER 7TH BUT ALSO BROKE
THE RECORD FOR THE MOST RAIN EVER RECORDED IN 24 HOURS FOR THE ENTIRE
MONTH OF NOVEMBER.

THE PREVIOUS 24 HOUR RAINFALL RECORD FOR THE MONTH OF NOVEMBER WAS
1.85 INCHES SET OVER 125 YEARS AGO ON NOVEMBER 15TH 1871. THE PREVIOUS
RAINFALL RECORD FOR NOVEMBER 7TH WAS 0.70 SET IN 1977.

Key 

HI = High for Day
LO = Low for Day
AV = Average
NR = Normal Average
DP DY = Daily Departure for Normal
HEATING DD = Heating Degree Day for
-----DY = Day
-----MON = Month
-----SEAS = Season
SNOWFALL for DAY...Month and Season
PRECIPITATION for
-----DY = DAY
-----MON = Month
-----NORM = Cumulative Normal for Month
-----DEP = Cumulitive Departure for Normal for Month
-----YEAR = Cumulitive Yearly Total
-----NORM = Cumulative Yearly Normal
-----DEP = Depature from the Yearly Normal