149
NOUS46 KMFR 021212
PNSMFR
ORZ026-030015-

Public Information Statement
National Weather Service Medford OR
512 AM PDT Sat Aug 2 2025

...MEDFORD OREGON WEATHER REVIEW: July 2025...

July 2025 was largely influenced by persistent upper level
troughing ranging from a persistent trough off the California coast
to a cool upper level trough dropping south out of Canada to a
trough in the Gulf of Alaska sending shortwaves through the region.
There was a period of upper level ridging that brought hot
temperatures to the region around the middle of the month,
otherwise, high temperatures were generally below 100 degrees in
Medford for much of the month.

The persistent pattern of low pressure off the coast of California
continued through the first week of July. As these low pressures
moved inland, another would quickly take it`s place. This maintained
a persistent thunderstorm pattern for much of the area and on the
7th, thunderstorms moved up from the south and strengthened over the
Rogue Valley. This storm brought a peak wind gust of 56 mph and a
brief period of heavy rain when 0.25" of rain (which is the average
July precip for Medford) fell in less than an hour. The strong winds
resulted in damages around the northern end of the valley including
a lot of downed tree branches, downed trees and downed power poles
that caused numerous power outages. Lightning from these storms
started numerous wildfires mainly in the Applegate Valley.

The pattern transitioned around the end of the month when high
pressure from the Desert Southwest expanded northwestward and
brought hot temperatures to the region. This brought the hottest
temperatures of the month, with Medford recording 105 degrees on the
13th. Temperatures began a downward trend as a trough began to
settle over Canada around the 18th. Eventually this trough moved
southward over southern Oregon/northern California, resulting in
below normal temperatures with highs only reaching 82 degrees at the
Medford Airport on the 21st.

As the parent trough moved eastward, lingering energy formed another
cut off low off the coast of California. This brought the return of
a persistent thunderstorm pattern that continued through the end of
the month. Eventually the cut off low was absorbed into the westerly
flow, but persistent low pressure in the Gulf of Alaska continued to
send potent shortwaves through the region in southwesterly flow
which maintained daily thunderstorm activity. Though the Rogue
Valley largely missed out on this thunderstorm activity, there were
plenty of storms across northern California and east of the
Cascades. During this pattern, moderate to heavy rain accompanied
these storms and many locations recorded 0.50"-0.75" of rain, with
sites directly under storm cores recording upwards of an inch of
rain. In fact, Klamath Falls set a new daily rainfall record when
0.77" fell on the 31st, which broke the old record of 0.59" set in
1985. These daily occurrences of ample rainfall helped to mitigate
fire spread from the abundant lightning and resulted in above normal
precipitation for the month for areas across northern California and
east of the Cascades. Meanwhile, areas along west of the Cascades
generally saw near to below normal precipitation.

The average temperature for the month was 78.3 degrees, which is
3.2 degrees above normal. The average maximum temperature was 94.9
degrees, which is 3.3 degrees above normal. The average minimum
temperature was 61.7 degrees, which is 3.1 degrees above normal.
The highest temperature for the month was 105 degrees which
occurred on the 13th. The lowest temperature for the month was 53
degrees which occurred on the 5th.

There were 31 clear days, 0 partly cloudy days, and 0 cloudy
days.

Total precipitation for the month was 0.25 inches which is 0.01
inches above normal. Total precipitation for the water year
(beginning October 1st) is 21.24 inches which is 3.62 inches
above normal. Calendar year precipitation is 10.50 inches which
is 0.24 inches above normal.

The average wind speed for the month was 5.5 mph. The fastest
recorded two-minute wind speed was 23 mph from the west which
occurred on the 7th and 18th. The peak wind was 56 mph from the
southwest which occurred on the 7th.

The highest pressure for the month was 30.18 inches on the 5th.
The lowest pressure for the month was 29.69 inches on the 16th.

$$