Climatological Report (Monthly)
Issued by NWS Tuscon, AZ

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CXUS55 KTWC 040147
CLMDUG

CLIMATE REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
645 PM MST THU JAN 3 2019

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

...THE DOUGLAS AZ CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              81   12/03/1954
 LOW               -4   12/08/1978
HIGHEST            73   12/22        75      -2       75  12/30
                                                          12/29
                                                          12/03
LOWEST             18   12/14        17       1       17  12/16
AVG. MAXIMUM     59.7              62.6    -2.9     64.6
AVG. MINIMUM     31.1              29.4     1.7     30.4
MEAN             45.4              46.0    -0.6     47.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32     19              20.8    -1.8       19
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.86   1994
 MINIMUM         0.00   1981
                        1973
                        1958
TOTALS           0.79              0.97   -0.18     0.60
DAILY AVG.       0.03              0.03    0.00     0.02
DAYS >= .01         6               4.2     1.8        3
DAYS >= .10         3               2.3     0.7        1
DAYS >= .50         0               0.5    -0.5        1
DAYS >= 1.00        0               0.2    -0.2        0
GREATEST
 24 HR. TOTAL    0.31   12/07 TO 12/07           12/17 TO 12/17

DEGREE_DAYS
HEATING TOTAL     600               589      11      536
 SINCE 7/1       1152              1024     128      734
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    31/180    DATE  12/25
HIGHEST GUST SPEED/DIRECTION    45/280    DATE  12/17

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

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

$$


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