Climatological Report (Monthly)
Issued by NWS Pittsburgh, PA

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CXUS51 KPBZ 011514
CLMPIT

CLIMATE REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
915 AM EST MON JAN 1 2018

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

...THE PITTSBURGH PA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER
2017...

CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)

                                          NORMAL

................................................................
TEMPERATURE (F) RECORD HIGH              74   12/03/1982

 LOW              -12   12/22/1989

                        12/25/1983

HIGHEST            59   12/04        43      16       66  12/27
                                                          12/26
LOWEST              0   12/31        22     -22        5  12/16
AVG. MAXIMUM     37.7              39.4    -1.7     40.4
AVG. MINIMUM     23.5              25.3    -1.8     26.8
MEAN             30.6              32.4    -1.8     33.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     10               8.7     1.3        7
DAYS MIN <= 32     25              23.8     1.2       23
DAYS MIN <= 0       1               0.4     0.6        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.51   1990
 MINIMUM         0.40   1955
TOTALS           1.77              2.85   -1.08
DAILY AVG.       0.06              0.09   -0.03     0.11
DAYS >= .01        16              15.1     0.9       14
DAYS >= .10         5               6.8    -1.8        7
DAYS >= .50         0               1.6    -1.6        2
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.47   12/23 TO 12/23


SNOWFALL (INCHES)
RECORDS
 TOTAL           36.3   1890
 24 HR TOTAL     22.0   1890
TOTALS           13.3               8.3     5.0      6.0
SINCE 7/1        13.3              10.7     2.6      8.1
SNOWDEPTH AVG.      1                 2      -1        0
DAYS >= TRACE      16
DAYS >= 1.0         5               2.6     2.4        2
GREATEST
 24 HR TOTAL      3.9   12/30 TO 12/30               3.8

DEGREE_DAYS
HEATING TOTAL    1057              1012      45      969
 SINCE 7/1       2060              2175    -115     1816
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        864               736     128     1158
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    32/280    DATE  12/25
HIGHEST GUST SPEED/DIRECTION    41/260    DATE  12/25

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       4
LIGHT SNOW               16     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$



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