Climatological Report (Monthly)
Issued by NWS Medford, OR

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CXUS56 KMFR 011305
CLMMFR

CLIMATE REPORT
NATIONAL WEATHER SERVICE MEDFORD, OR
605 AM PDT THU AUG 1 2019

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

...THE MEDFORD OR CLIMATE SUMMARY FOR THE MONTH OF JULY 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1911 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             115   07/20/1946
 LOW               38   07/01/1976
                        07/02/1962
HIGHEST            98   07/25                        105  07/16
LOWEST             52   07/04                         49  07/03
AVG. MAXIMUM     89.0              90.7    -1.7     95.4
AVG. MINIMUM     58.9              57.4     1.5     60.8
MEAN             74.0              74.1    -0.1     78.1
DAYS MAX >= 90     15              17.7    -2.7       24
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.74   1913
TOTALS              T              0.28   -0.28     0.01
DAILY AVG.          T              0.01   -0.01     0.00
DAYS >= .01         0               2.1    -2.1        1
DAYS >= .10         0               1.0    -1.0        0
DAYS >= .50         0               0.1    -0.1        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL       T   07/09 TO 07/09

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0   2010
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0

DEGREE_DAYS
HEATING TOTAL       0                 6      -6        0
 SINCE 7/1          0                 6      -6        0
COOLING TOTAL     287               286       1      415
 SINCE 1/1        481               432      49      590

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

WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    23/360    DATE  07/23
HIGHEST GUST SPEED/DIRECTION    29/270    DATE  07/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     44

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  0
  0
  0
  0
  0
  0
HAZE                      8

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

&&

OVERALL, JULY WAS NEARLY AN AVERAGE MONTH. NEITHER RECORD HIGH
NOR RECORD LOW TEMPERATURES WERE RECORDED. JULY STARTED OFF WITH
MULTIPLE LOW PRESSURE SYSTEMS WHICH WORKED TO BRING MOISTURE INTO
THE AREA RESULTING IN CLOUD COVER, KEEPING AFTERNOON HIGH
TEMPERATURES BELOW NORMAL. HOWEVER, THIS MOISTURE WAS NOT SUFFICIENT
TO GENERATE MEASURABLE PRECIPITATION IN THE ROUGE VALLEY. LATER IN
THE MONTH, HIGH PRESSURE IN THE FOUR CORNERS REGION BECAME THE
DOMINANT WEATHER PATTERN. THIS CAUSED WAVES OF SOUTH TO SOUTHWEST
WIND ALOFT AND HOT, DRY DAYS. IN WHAT WAS INITIALLY A SLOW START TO
FIRE SEASON, THE PROLONGED PERIOD OF HOT, DRY WEATHER MADE LOCAL
CONDITIONS MORE CONDUCIVE TO WILDFIRES. INEVITABLY, THESE CONDITIONS
ALLOWED FOR THE RAPID GROWTH OF OUR AREA`S FIRST MAJOR WILDFIRE, THE
MILEPOST 97 WILDFIRE NEAR CANYONVILLE. AS THE DOMINANT WIND PATTERN
SWITCHED BACK TO THE TYPICAL NORTHWEST FLOW, SMOKE FROM THE MILEPOST
97 WILDFIRE FILLED THE ROGUE VALLEY FOR MOST OF THE LAST WEEK OF
JULY. THIS DEGRADED AIR QUALITY ACROSS MEDFORD, ESPECIALLY IN THE
AFTERNOONS. A FEW SMALLER WILDFIRES ALSO IGNITED NEAR ASHLAND, BUT
WERE SNUFFED OUT QUICKLY. BUT THIS INDICATES THAT THE AREA HAS
ENTERED THE HEIGHT OF FIRE SEASON.

$$


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