Oct 1999 Climate Data for Pittsburgh, PA  
See Key below for explanation of abbreviations
DATE  OCT 99  |DP|HEATING DD|SNOWFALL    |PRECIPITATION
   HI LO AV NR|DY|DY MON SEA|DAY MON SEAS| DAY  MON NORM  DEP  YEAR  NORM   DEP
01*68 44 56 58 -2  9   9 117   0   0    0    0    0  .09 -.09 28.96 28.81  +.15
02*75 42 59 58 +1  6  15 123   0   0    0    0    0  .17 -.17 28.96 28.89  +.07
03*64 53 59 57 +2  6  21 129   0   0    0    T    T  .25 -.25 28.96 28.97  -.01
04*59 43 51 57 -6 14  35 143   0   0    0  .20  .20  .33 -.13 29.16 29.05  +.11
05*57 34 46 57-11 19  54 162   0   0    0    0  .20  .41 -.21 29.16 29.13  +.03
06*64 40 52 56 -4 13  67 175   0   0    0    0  .20  .49 -.29 29.16 29.21  -.05
07*56 32 44 56-12 21  88 196   0   0    0    0  .20  .57 -.37 29.16 29.29  -.13
08*70 40 55 55  0 10  98 206   0   0    0    0  .20  .65 -.45 29.16 29.37  -.21
09*66 59 63 55 +8  2 100 208   0   0    0  .22  .42  .73 -.31 29.38 29.45  -.07
10*67 59 63 54 +9  2 102 210   0   0    0  .17  .59  .81 -.22 29.55 29.53  +.02
11*64 43 54 54  0 11 113 221   0   0    0    0  .59  .88 -.29 29.55 29.60  -.05
12*67 36 52 54 -2 13 126 234   0   0    0    0  .59  .95 -.36 29.55 29.67  -.12
13*72 47 60 53 +7  5 131 239   0   0    0  .56 1.15 1.02 +.13 30.11 29.74  +.37
14*54 39 47 53 -6 18 149 257   0   0    0  .01 1.16 1.09 +.07 30.12 29.81  +.31
15*70 35 53 53  0 12 161 269   0   0    0    0 1.16 1.16    0 30.12 29.88  +.24
16*74 45 60 52 +8  5 166 274   0   0    0    0 1.16 1.23 -.07 30.12 29.95  +.17
...........
...
.....................................................................
............   NORMALS 1961-90 RV
DATE  OCT 99  |DP|HEATING DD|SNOWFALL    |PRECIPITATION
   HI LO AV NR|DY|DY MON SEA|DAY MON SEAS| DAY  MON NORM  DEP  YEAR NORM   DEP
17*67 47 57 52 +5  8 174 282   0   0    0  .04 1.20 1.30 -.10 30.16 30.02 +.14
18*57 39 48 51 -3 17 191 299   0   0    0    0 1.20 1.37 -.17 30.16 30.09 +.07
19*60 38 49 51 -2 16 207 315   0   0    0  .09 1.29 1.44 -.15 30.25 30.16 +.09
20*60 40 50 51 -1 15 222 330   0   0    0  .02 1.31 1.51 -.20 30.27 30.23 +.04
21*58 33 46 50 -4 19 241 349   0   0    0    0 1.31 1.58 -.27 30.27 30.30 -.03
22*59 44 52 50 +2 13 254 362   0   0    0  .03 1.34 1.65 -.31 30.30 30.37 -.07
23*44 39 42 50 -8 23 277 385   T   T    T  .13 1.47 1.72 -.25 30.43 30.44 -.01
24*47 35 41 49 -7 24 301 409   0   T    T  .08 1.55 1.80 -.25 30.51 30.52 -.01
25*55 33 44 49 -5 21 322 430   0   T    T    0 1.55 1.88 -.33 30.51 30.60 -.09
26*63 39 51 49 +2 14 336 444   0   T    T    0 1.55 1.96 -.41 30.51 30.68 -.17
27*52 35 44 49 -5 21 357 465   0   T    T    0 1.55 2.04 -.49 30.51 30.76 -.25
28*68 29 49 48 +1 16 373 481   0   T    T    0 1.55 2.12 -.57 30.51 30.84 -.33
29*75 42 59 48+11  6 379 487   0   T    T    0 1.55 2.20 -.65 30.51 30.92 -.41
30*75 43 59 48+11  6 385 493   0   T    T    0 1.55 2.28 -.73 30.51 31.00 -.49
31*75 53 64 47+17  1 386 494   0   T    T    0 1.55 2.36 -.81 30.51 31.08 -.57
 
COOLING DEGREES MONTH...0  SEASON...772

                    ...OCTOBER 1999...
TEMPERATURES
AVERAGE MAXIMUM................................ 63.3 DEGREES
AVERAGE MINIMUM................................ 41.3 DEGREES
AVERAGE FOR MONTH.............................. 52.3 DEGREES
DEPARTURE FROM NORMAL.......................... -0.1 DEGREES
HIGHEST AND DATE........  75 DEGREES ON THE 29TH, 30TH, 31ST
LOWEST AND DATE...................... 29 DEGREES ON THE 28TH
NUMBER OF DAYS MAX TEMPERATURE 32 DEGREES OR BELOW.......  0
NUMBER OF DAYS MAX TEMPERATURE 90 DEGREES OR ABOVE.......  0
NUMBER OF DAYS MIN TEMPERATURE 32 DEGREES OR BELOW.......  2
 
HEATING DEGREE DAYS..................................... 386
DEPARTURE FROM NORMAL................................... -14
SEASONAL TOTAL HEATING.................................. 494
COOLING DEGREE DAYS.....................................   0
DEPARTURE FROM NORMAL...................................  -9
SEASONAL TOTAL COOLING.................................. 772
 
PRECIPITATION DATA
TOTAL FOR THE MONTH...................................  1.55
DEPARTURE FROM NORMAL................................. -0.81
TOTAL FOR THE YEAR.................................... 30.51
DEPARTURE FROM NORMAL................................. -0.57
MAXIMUM PRECIPITATION IN 24 HOURS 0.57 INCHES ON THE 13-14TH
 
MONTHLY SNOWFALL...................................... TRACE
DEPARTURE FROM NORMAL.................................  -0.2
MAXIMUM CALENDAR DAY SNOWFALL..............TRACE ON THE 23RD
 
NUMBER OF DAYS WITH PRECIPITATION 0.01 INCHES OR MORE.....11
NUMBER OF DAYS WITH PRECIPITATION 0.10 INCHES OR MORE..... 5
NUMBER OF DAYS WITH PRECIPITATION 0.50 INCHES OR MORE..... 1
NUMBER OF DAYS WITH PRECIPITATION 1.00 INCHES OR MORE..... 0
 
SUNSHINE
NUMBER OF DAYS WITH CLEAR SKIES.......................... 10
NUMBER OF DAYS WITH PARTLY CLOUDY SKIES.................. 10
NUMBER OF DAYS WITH CLOUDY SKIES......................... 11
HIGHEST SEA LEVEL PRESSURE......... 30.47 ON THE 7TH AT 1037
LOWEST SEA LEVEL PRESSURE......... 29.53 ON THE 22ND AT 1453
 
...HIGHLIGHTS...
NO RECORDS THIS MONTH.  ANOTHER DRY MONTH...SO THE DROUGHT CONTINUES.
THE END OF THE MONTH WAS ESPECIALLY DRY WITH NO PRECIPITATION OVER
THE FINAL 7 DAYS.
 

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