National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS53 KILX 011728
CLMMTO

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1128 AM CST TUE JAN 1 2013

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

...THE MATTOON IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 9999 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              MM   MM
 LOW               MM   MM
HIGHEST            70   12/03        MM      MM       59
LOWEST             13   12/29        MM      MM       15
AVG. MAXIMUM     44.6              38.4     6.2     43.7
AVG. MINIMUM     31.9              24.2     7.7     30.6
MEAN             38.3              31.3     7.0     37.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      5               8.2    -3.2        1
DAYS MIN <= 32     17              23.8    -6.8       19
DAYS MIN <= 0       0               0.6    -0.6        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           3.72              2.77    0.95     3.77
DAILY AVG.       0.12              0.09    0.03     0.12
DAYS >= .01        13                MM      MM       11
DAYS >= .10         7                MM      MM        9
DAYS >= .50         2                MM      MM        2
DAYS >= 1.00        2                MM      MM        1
GREATEST
 24 HR. TOTAL    1.33   12/19 TO 12/20              1.38

DEGREE_DAYS
HEATING TOTAL     793              1044    -251      857
 SINCE 7/1       1958              2103    -145     1780
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1382              1057     325     1308
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.4
HIGHEST WIND SPEED/DIRECTION    44/280    DATE  12/20
HIGHEST GUST SPEED/DIRECTION    55/280    DATE  12/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       7
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                6     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      6
HAZE                      5

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

$$