Climate Data
Monthly Numbers
Interested in temperature and precipitation numbers in Harrison? Check them out on a monthly basis below.
 
Climate Summary (Dec 2011)
 
...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2011

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            66   12/29        47      19       66  12/31
LOWEST             19   12/24        29     -10       10  12/13
                        12/10
AVG. MAXIMUM     51.0              47.7     3.3     46.2
AVG. MINIMUM     32.3              28.4     3.9     26.7
MEAN             41.7              38.1     3.6     36.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               2.6    -1.6        3
DAYS MIN <= 32     18              19.7    -1.7       24
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.64   1982
 MINIMUM         0.22   1919
TOTALS           3.74              3.20    0.54     0.68
DAILY AVG.       0.12              0.10    0.02     0.02
DAYS >= .01         9               7.9     1.1        6
DAYS >= .10         7                                  4
DAYS >= .50         5                                  0
DAYS >= 1.00        0               0.5    -0.5        0
GREATEST
 24 HR. TOTAL    1.26   12/03 TO 12/04

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            0.9               1.3    -0.4        T
 LIQUID EQUIV    0.09              0.10   -0.01        T
SINCE 7/1         0.9               1.8    -0.9        T
 LIQUID 7/1      0.09              0.10   -0.01       MM
SNOWDEPTH AVG.      0
DAYS >= TRACE       2               4.0    -2.0        4
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         1   12/06
 24 HR TOTAL      0.8   12/05

DEGREE_DAYS
HEATING TOTAL     716               835    -119      875
 SINCE 7/1       1412              1599    -187     1454
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1863              1416     447     1866

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

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    28/160    DATE  12/31
HIGHEST GUST SPEED/DIRECTION    40/250    DATE  12/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       8
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      1
FOG                      17     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

-  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 2011...

TEMPERATURE
___________

AVERAGE MONTHLY HIGH....WARMEST SINCE 2006
AVERAGE MONTHLY LOW.....WARMEST SINCE 2006
AVERAGE MONTHLY.........WARMEST SINCE 2006

NUMBER OF DAYS WITH DAILY AVERAGE TEMPERATURES...

AT NORMAL........ 1     ABOVE NORMAL.....21     BELOW NORMAL..... 9

HIGHEST TEMPERATURE........62 ON THE 20TH
LOWEST TEMPERATURE.........19 ON THE 24TH...10TH

NUMBER OF DAYS WITH...

HIGHS AT OR ABOVE 60 DEGREES...... 7.....MOST SINCE 2010
LOWS AT OR BELOW FREEZING.........18...FEWEST SINCE 2007

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

NONE.

RAINFALL
________

MONTHLY RAINFALL......WETTEST SINCE 2008.

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

NONE.


SNOWFALL
________

THIS WAS THE FIRST DECEMBER WITH MEASURABLE SNOWFALL AT HARRISON
SINCE 2009. IT WAS THE SNOWIEST DECEMBER SINCE 2005.

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

NONE.

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