Climate Data
Monthly Numbers
Interested in temperature and precipitation numbers in Harrison? Check them out on a monthly basis below.
 
Climate Summary (Dec 2012)
 
...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              82   12/24/1955
 LOW              -11   12/23/1989
HIGHEST            77   12/02        47      30       66  12/29
LOWEST             16   12/11        29     -13       19  12/24
                                                          12/10
AVG. MAXIMUM     53.7              47.7     6.0     51.0
AVG. MINIMUM     34.0              28.4     5.6     32.3
MEAN             43.8              38.1     5.7     41.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               2.6    -0.6        1
DAYS MIN <= 32     17              19.7    -2.7       18
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.64   1982
 MINIMUM         0.22   1919
TOTALS           2.08              3.20   -1.12     3.74
DAILY AVG.       0.07              0.10   -0.03     0.12
DAYS >= .01         9               7.9     1.1        9
DAYS >= .10         5                                  7
DAYS >= .50         2                                  5
DAYS >= 1.00        0               0.5    -0.5        0
GREATEST
 24 HR. TOTAL    0.73   12/31 TO 12/31

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.0   1966
 24 HR TOTAL     13.0   12/23/1966 TO 12/23/1966
 SNOW DEPTH        13   12/08/1917
TOTALS            0.3               1.3    -1.0      0.9
 LIQUID EQUIV    0.03              0.10   -0.07     0.09
SINCE 7/1         0.3               1.8    -1.5      0.9
 LIQUID 7/1      0.03              0.10   -0.07     0.09
SNOWDEPTH AVG.      0
DAYS >= TRACE       5               4.0     1.0        2
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         T   12/26
 24 HR TOTAL      0.3   12/25 TO 12/25

DEGREE_DAYS
HEATING TOTAL     656               835    -179      716
 SINCE 7/1       1408              1599    -191     1412
COOLING TOTAL       8                 0       8        0
 SINCE 1/1       1969              1416     553     1863

FREEZE DATES
RECORD
 EARLIEST     09/13/1902
 LATEST       05/17/1912
EARLIEST                        10/29
LATEST                          04/04
.....................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    33/260    DATE  12/20
HIGHEST GUST SPEED/DIRECTION    47/300    DATE  12/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                5     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      3
HAZE                      5

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

&&

...ADDITIONAL DATA FOR HARRISON FOR DECEMBER 2012...

.SUMMARY...
THERE WERE PERIODIC EPISODES OF WARM WEATHER DURING THE MONTH...WITH
TEMPERATURES EVEN REACHING THE UPPER 70S ON THE 2ND. HOWEVER...LATE
ON THE 24TH...MUCH COLDER AIR MOVED INTO THE REGION...AND REMAINED
THROUGH THE END OF THE MONTH.

.MONTHLY TEMPERATURES...
THE AVERAGE HIGH TEMPERATURE WAS THE WARMEST SINCE 1984. THE AVERAGE
LOW WAS THE WARMEST SINCE 1984...AND THE 7TH WARMEST ON RECORD. THE
AVERAGE MONTHLY TEMPERATURE WAS THE WARMEST SINCE 1984.

.DAILY AVERAGE TEMPERATURES...
BELOW NORMAL ON 10 DAYS AND ABOVE NORMAL ON 21 DAYS.

.NUMBER OF DAYS WITH
TEMPERATURES AT OR BELOW FREEZING...17 (FEWEST SINCE 2006)
TEMPERATURES AT OR ABOVE 70 DEGREES...2 (MOST SINCE 2006)

.DAILY TEMPERATURE RECORDS TIED OR BROKEN DURING THE MONTH...

DATE  RECORD TYPE                NEW RECORD    OLD RECORD
 2ND  HIGH TEMPERATURE           77 IN 2012    75 IN 1950
      HIGHEST LOW TEMPERATURE    62 IN 2012    62 IN 1982
 3RD  HIGHEST LOW TEMPERATURE    62 IN 2012    60 IN 1998

.RAINFALL...
IT WAS THE DRIEST DECEMBER SINCE 2010.

.DAILY RAINFALL RECORDS TIED OR BROKEN DURING THE MONTH...

NONE.

.SNOWFALL...
IT WAS THE LEAST SNOW IN DECEMBER SINCE 2010.

.DAILY SNOWFALL RECORDS TIED OR BROKEN DURING THE MONTH...

DATE        NEW RECORD              OLD RECORD
20TH      TRACE IN 2012           TRACE IN 1995...1983...1977

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