...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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