Climatological Report (Monthly)
Issued by NWS Medford, OR

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CXUS56 KMFR 011210
CLMMFR

CLIMATE REPORT
NATIONAL WEATHER SERVICE MEDFORD, OR
333 AM PST MON JAN 1 2018

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

...THE MEDFORD OR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1911 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              72   12/14/1962
 LOW              -10   12/13/1919
HIGHEST            64   12/06                         51  12/09
LOWEST             20   12/12                         19  12/18
AVG. MAXIMUM     46.7              45.9     0.8     43.1
AVG. MINIMUM     29.5              32.7    -3.2     31.3
MEAN             38.1              39.3    -1.2     37.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.5    -0.5        0
DAYS MIN <= 32     21              13.7     7.3       15
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.72   1964
TOTALS           0.85              3.49   -2.64     4.56
DAILY AVG.       0.03              0.11   -0.08     0.15
DAYS >= .01         7              14.4    -7.4       15
DAYS >= .10         4               7.8    -3.8        7
DAYS >= .50         0               2.1    -2.1        3
DAYS >= 1.00        0               0.5    -0.5        2
GREATEST
 24 HR. TOTAL    0.28   12/29 TO 12/30

SNOWFALL (INCHES)
RECORDS
 TOTAL           12.2   1972
TOTALS            0.0               1.5    -1.5      0.4
SINCE 7/1         0.0               1.7    -1.7      0.4

DEGREE_DAYS
HEATING TOTAL     826               797      29      852
 SINCE 7/1       1761              1766      -5     1625
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1281               829     452     1058

FREEZE DATES
RECORD
 EARLIEST     09/13/1921
 LATEST       06/12/1952
EARLIEST                        10/18
LATEST                          04/29
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              1.7
HIGHEST WIND SPEED/DIRECTION    28/150    DATE  12/06
HIGHEST GUST SPEED/DIRECTION    36/210    DATE  12/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     82

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      28     FOG W/VIS <= 1/4 MILE     10
HAZE                      6

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

&&

...MEDFORD OREGON WEATHER REVIEW: DECEMBER 2017...

DECEMBER 2017 WAS A VERY DRY MONTH FOR MEDFORD. THE TOTAL RAINFALL WAS ONLY
0.85 INCHES, WHICH WAS THE 9TH DRIEST ON RECORD. THERE WAS MEASURABLE RAIN ON
ONLY 7 DAYS.

A WEAK FRONT BROUGHT 0.20 INCHES ON THE 2ND AND 3RD. THAT WAS FOLLOWED BY A
LONG DRY SPELL WITH LIGHT WINDS, PROMPTING AN AIR STAGNATION ADVISORY FOR THE
AREA WHICH RAN FROM THE 5TH TO THE 15TH. A RECORD HIGH TEMPERATURE OF 64
DEGREES WAS RECORDED ON THE 6TH. THE OLD RECORD WAS 62 DEGREES, SET IN 1981.
DESPITE THIS, MOST OF THE FIRST HALF OF THE MONTH SAW BELOW NORMAL AVERAGE
TEMPERATURES.

SEVERAL WEAK SYSTEMS MOVED THROUGH DURING THE SECOND HALF OF THE MONTH. 0.23
INCHES OF RAIN FELL ON THE 19TH AND 0.10 INCHES FELL ON THE 25TH. THE HEAVIEST
24-HOUR RAIN TOTAL WAS 0.28 INCHES, WHICH FELL ON THE 29TH AND 30TH.  AVERAGE
TEMPERATURES WERE ABOVE NORMAL DURING MOST OF THIS STRETCH.

THE MONTH ENDED ON A DRY NOTE WITH ANOTHER AIR STAGNATION ADVISORY IN EFFECT.

$$



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