Climatological Report (Monthly)
Issued by NWS Medford, OR

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000
CXUS56 KMFR 011327
CLMMFR

CLIMATE REPORT
NATIONAL WEATHER SERVICE MEDFORD, OR
526 PM PST WED FEB 1 2017

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

...THE MEDFORD OR CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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              71   01/21/1981
                        01/20/1961
 LOW               -3   01/11/1930
HIGHEST            54   01/27                         66  01/21
                        01/18
LOWEST              6   01/06                         19  01/02
AVG. MAXIMUM     44.9              47.8    -2.9     51.3
AVG. MINIMUM     28.4              32.8    -4.4     34.7
MEAN             36.7              40.3    -3.6     43.0
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               0.1     1.9        0
DAYS MIN <= 32     22              14.0     8.0        8
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.67   1936
TOTALS           4.89              2.43    2.46     4.22
DAILY AVG.       0.16              0.08    0.08     0.14
DAYS >= .01        16              13.1     2.9       16
DAYS >= .10         8               6.8     1.2       11
DAYS >= .50         5               1.1     3.9        3
DAYS >= 1.00        1               0.3     0.7        1
GREATEST
 24 HR. TOTAL    1.54   01/09 TO 01/10

SNOWFALL (INCHES)
RECORDS
 TOTAL           22.6   1930
TOTALS           11.4               1.3    10.1      0.0
SINCE 7/1        11.8               3.0     8.8      0.7

DEGREE_DAYS
HEATING TOTAL     873               766     107      673
 SINCE 7/1       2498              2532     -34     2177
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

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

WIND (MPH)
AVERAGE WIND SPEED              2.8
HIGHEST WIND SPEED/DIRECTION    37/150    DATE  01/22
HIGHEST GUST SPEED/DIRECTION    45/150    DATE  01/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       1
LIGHT SNOW                8     SLEET                      0
FOG                      29     FOG W/VIS <= 1/4 MILE     16
HAZE                      4

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

&&

JANUARY 2017 CONTINUED THE ACTIVE WEATHER PATTERN THAT WAS WITH US IN
DECEMBER, BRINGING ONE SYSTEM AFTER ANOTHER. DURING THE FIRST WEEK OF
THE MONTH, LOW ELEVATION SNOW CONTINUED TO FALL TO VALLEY FLOORS, AND
AT TIMES, EVEN DOWN TO THE BEACHES. IN FACT, MANY PEOPLE IN THE VALLEYS
WEST OF THE CASCADES WOKE UP TO SNOW ON NEW YEAR`S DAY. THE BIGGEST
EVENT TO OCCUR DURING THE MONTH WAS A MAJOR SNOWSTORM THAT MOVED
THROUGH THE AREA ON THE 3RD. THE MEDFORD AIRPORT HAD TO SHUT DOWN ITS
OPERATIONS DUE TO A RECORD BREAKING 8.3 INCHES OF SNOWFALL. THIS
SNOWFALL BECAME THE 2ND GREATEST DAILY SNOWFALL SINCE RECORDS BEGAN IN
1911. COMMON READINGS OF 6-12 INCHES OF SNOW WERE REPORTED AROUND THE
ROGUE VALLEY. LOCATIONS IN THE ILLINOIS VALLEY, SUCH AS CAVE JUNCTION
AND KERBY, REPORTED UP TO TWO FEET OF SNOW ON THAT SAME DAY! THIS WAS
ALL DUE TO A SURFACE LOW PRESSURE SYSTEM THAT MOVED INLAND OVER
NORTHERN CALIFORNIA, WHICH PROVIDED AMPLE MOISTURE. THIS COMBINED WITH
COLD AIR ALREADY IN PLACE IN WESTERN VALLEYS, PROVIDED ALL THE RIGHT
INGREDIENTS FOR A MAJOR SNOW EVENT. SCHOOLS IN THE ROGUE VALLEY WERE
CLOSED FOR THE WEEK DUE TO ROADS REMAINING SNOW AND ICE COVERED AS
TEMPERATURES REMAINED WELL BELOW FREEZING.

AFTER A VERY BRIEF BREAK IN THE WEATHER, A WARMER SYSTEM MOVED INTO THE
AREA, DROPPING AMPLE AMOUNTS OF RAIN IN THE ROGUE VALLEY. THE AIRPORT
RECORDED 2.62 INCHES IN THREE DAYS WITH THIS SYSTEM. THE RAIN, COMBINED
WITH LOW ELEVATION SNOW MELT, LED TO FLOODING CONCERNS AROUND THE AREA.
MANY LOCATIONS EXPERIENCED SIMILAR FLOODING ISSUES AS THEY DID A FEW
WEEKS PRIOR IN DECEMBER. ONCE THIS SYSTEM PASSED THROUGH, THERE WAS
ANOTHER BRIEF REPRIEVE IN THE ACTIVE WEATHER, WHICH ALLOWED RIVERS AND
FLOOD WATERS TO RECEDE.

ONCE THIS BREAK WAS OVER, THE STORM DOOR OPENED ONCE AGAIN, BRINGING
MULTIPLE SYSTEMS MORE TYPICAL FOR THIS AREA WITH MOUNTAIN SNOW AND
VALLEY RAIN. THESE SYSTEMS ALSO BROUGHT STRONG WINDS USUALLY EXPECTED
WITH WINTER STORMS IN OUR AREA. THE ROGUE VALLEY SAW STRONG SOUTHEAST
WINDS FROM THE 18TH THROUGH THE 22ND WITH THE STRONGEST WINDS ON THE
22ND.

AFTER THESE SERIES OF STORMS, THE WEATHER BECAME DOMINATED BY HIGH
PRESSURE ALOFT AND THUS QUIETED DOWN FOR THE REST OF THE MONTH. AS IS
TYPICAL OF HIGH PRESSURE IN THE WINTER, THE VALLEY DEALT WITH STAGNANT
AIR AND MORNING FREEZING FOG FOR THE LAST WEEK OF JANUARY.

$$



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