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Issued by NWS Medford, OR

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NOUS46 KMFR 011325 CCA

525 AM PST MON FEB 1 2017


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

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.

The average temperature for the month was 36.7 degrees, which is 3.6
degrees below normal. The average maximum temperature was 44.9 degrees,
which is 2.9 degrees below normal. The average minimum temperature was
28.4 degrees which is 4.4 degrees below normal.  The highest
temperature for the month was 54 degrees on the 18th and again on the
27th. The lowest temperature for the month was 6 degrees on the 6th.

There were 8 clear days, 16 partly cloudy days, and 7 cloudy days.

Total precipitation for the month was 4.89 inches, which is 2.46 inches
above normal. The total precipitation for the Water Year (beginning
October 1st) stands at 16.58 inches which is 6.51 inches above normal.
Calendar Year precipitation is now 4.89 inches which is 2.46 inches
above normal.

The average wind speed for the month was 2.8 mph. The fastest recorded
two-minute wind was 37 mph from the southeast on the 22nd.
The peak wind was 45 mph from the southeast on the 22nd.

The highest pressure for the month was 30.72 inches on the 27th. The
lowest pressure for the month was 29.06 inches on the 20th.

Records set in January 2017:

-12 degrees on the 5th, breaks the old record of 13 degrees set in 1913
-6 degrees on the 6th, breaks the old record of 9 degrees set in 1937

Daily Precipitation:
-0.83 inches on the 8th, breaks old record of 0.71 inches that set in
-1.00 inch on the 9th, breaks old record of 0.77 inches set in 1995

Daily Snowfall:
-8.3 inches on 3rd, breaks old record of 2.4 inches that fell in 1965
-8.3 inches on the 3rd is the second greatest one day snowfall total on
record. The record stands at 11.0 inches which fell December 11th, 1919.


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