September 1998 Climate Data for Pittsburgh, PA  
See Key below for explanation of abbreviations
DATE  SEP 98  |DP|HEATING DD|COOLING DD|PRECIPITATION
   HI LO AV NR|DY|DY MON SEA|DY MON SEA| DAY  MON  NORM  DEP  YEAR  NORM    DEP
01*78 54 66 68 -2  0   0   0  1   1 690    T    T   .10 -.10 27.54 25.85 +1.69
02*78 54 66 68 -2  0   0   0  1   2 691    T    T   .20 -.20 27.54 25.95 +1.59
03*77 50 64 68 -4  1   1   1  0   2 691    0    T   .30 -.30 27.54 26.05 +1.49
04*80 52 66 67 -1  0   1   1  1   3 692    0    T   .40 -.40 27.54 26.15 +1.39
05*81 52 67 67  0  0   1   1  2   5 694    0    T   .50 -.50 27.54 26.25 +1.29
06*90 58 74 67 +7  0   1   1  9  14 703    0    T   .61 -.61 27.54 26.36 +1.18
07*77 57 67 67  0  0   1   1  2  16 705  .28  .28   .72 -.44 27.82 26.47 +1.35
08*64 49 57 66 -9  8   9   9  0  16 705  .36  .64   .83 -.19 28.18 26.58 +1.60
09*65 47 56 66-10  9  18  18  0  16 705  .13  .77   .93 -.16 28.31 26.68 +1.63
10*71 46 59 66 -7  6  24  24  0  16 705    0  .77  1.03 -.26 28.31 26.78 +1.53
11*78 49 64 66 -2  1  25  25  0  16 705    0  .77  1.13 -.36 28.31 26.88 +1.43
12*84 57 71 65 +6  0  25  25  6  22 711    0  .77  1.23 -.46 28.31 26.98 +1.33
13*86 60 73 65 +8  0  25  25  8  30 719    T  .77  1.33 -.56 28.31 27.08 +1.23
14*88 59 74 65 +9  0  25  25  9  39 728    0  .77  1.43 -.66 28.31 27.18 +1.13
15*87 69 78 64+14  0  25  25 13  52 741    0  .77  1.53 -.76 28.31 27.28 +1.03
16*82 67 75 64+11  0  25  25 10  62 751    T  .77  1.63 -.86 28.31 27.38 +0.93
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............   NORMALS 1961-90 RV
DATE  SEP 98  |DP|HEATING DD|COOLING DD|PRECIPITATION
   HI LO AV NR|DY|DY MON SEA|DY MON SEA| DAY  MON  NORM  DEP  YEAR  NORM    DEP
17*78 64 71 64 +7  0  25  25  6  68 757   T   .77  1.73 -.96  28.31 27.48 +0.83
18*83 55 69 63 +6  0  25  25  4  72 761   0   .77  1.83-1.06  28.31 27.58 +0.73
19*84 65 75 63+12  0  25  25 10  82 771   0   .77  1.93-1.16  28.31 27.68 +0.63
20*84 60 72 63 +9  0  25  25  7  89 778 .03   .80  2.03-1.23  28.34 27.78 +0.56
21*81 67 74 62+12  0  25  25  9  98 787 .06   .86  2.13-1.27  28.40 27.88 +0.52
22*74 57 65 62 +3  0  25  25  0  98 787 .02   .88  2.23-1.35  28.42 27.98 +0.44
23*64 44 54 62 -8 11  36  36  0  98 787   0   .88  2.33-1.45  28.42 28.08 +0.34
24*68 40 54 61 -7 11  47  47  0  98 787 .05   .93  2.43-1.50  28.47 28.18 +0.29
25*75 56 66 61 +5  0  47  47  1  99 788 .15  1.08  2.52-1.44  28.62 28.27 +0.35
26*87 62 75 60+15  0  47  47 10 109 798   0  1.08  2.61-1.53  28.62 28.36 +0.26
27*84 69 77 60+17  0  47  47 12 121 810 .01  1.09  2.70-1.61  28.63 28.45 +0.18
28*74 54 64 59 +5  1  48  48  0 121 810   0  1.09  2.79-1.70  28.63 28.54 +0.09
29*76 45 61 59 +2  4  52  52  0 121 810   T  1.09  2.88-1.79  28.63 28.63     0
30*80 58 69 59+10  0  52  52  4 125 814   T  1.09  2.97-1.88  28.63 28.72 -0.09


TEMPERATURES
AVERAGE MAXIMUM.................................78.6 DEGREES
AVERAGE MINIMUM.................................55.8 DEGREES
AVERAGE FOR MONTH...............................67.2 DEGREES
DEPARTURE FROM NORMAL...........................+3.3 DEGREES
HIGHEST AND DATE......................90 DEGREES ON THE  6TH
LOWEST AND DATE.......................40 DEGREES ON THE 24TH
NUMBER OF DAYS MAX TEMPERATURE 32 DEGREES OR BELOW.........0
NUMBER OF DAYS MIN TEMPERATURE  0 DEGREES OR BELOW.........0
NUMBER OF DAYS MAX TEMPERATURE 90 DEGREES OR ABOVE.........1
 
HEATING DEGREE DAYS.......................................52
DEPARTURE FROM NORMAL....................................-48
SEASONAL TOTAL HEATING....................................52
COOLING DEGREE DAYS......................................125
DEPARTURE FROM NORMAL....................................+58
SEASONAL TOTAL COOLING...................................814
 
PRECIPITATION DATA
TOTAL FOR THE MONTH............................. 1.09 INCHES
DEPARTURE FROM NORMAL...........................-1.88 INCHES
TOTAL FOR THE YEAR..............................28.63 INCHES
DEPARTURE FROM NORMAL...........................-0.09 INCHES
MAXIMUM PRECIPITATION IN 24 HOURS.... 0.45 INCHES ON THE 8-9
MONTHLY SNOWFALL................................... 0 INCHES
DEPARTURE FROM NORMAL.............................. 0 INCHES
MAXIMUM 24 HOUR SNOWFALL...............NA INCHES ON THE   NA
 
NUMBER OF DAYS WITH PRECIPITATION 0.01 INCH OR MORE........9
NUMBER OF DAYS WITH PRECIPITATION 0.10 INCH OR MORE........4
NUMBER OF DAYS WITH PRECIPITATION 0.50 INCH OR MORE........0
NUMBER OF DAYS WITH PRECIPITATION 1.00 INCH OR MORE........0
 
SUNSHINE
NUMBER OF DAYS WITH CLEAR SKIES...........................11
NUMBER OF DAYS WITH PARTLY CLOUDY SKIES...................13
NUMBER OF DAYS WITH CLOUDY SKIES.......................... 6
 
HIGHEST SEA LEVEL PRESSURE........ 30.25 ON THE 23RD AT 1016
LOWEST SEA LEVEL PRESSURE......... 29.66 ON THE  7TH AT 1550
 
HIGHLIGHTS...
TIED RECORD WARM MEAN TEMPERATURE OF 77 ON THE 27TH.
OTHERWISE...A WARM...DRY...PLEASANT MONTH.

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