803
CXUS56 KPQR 071841
CLAPDX
ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
1000 AM PST WED 7 JAN 2026
..PORTLAND 2025 WEATHER IN REVIEW
2025 NOTABLE WEATHER EVENTS & RECORDS
* MID-FEBRUARY WINTER STORM
* 2ND WARMEST APRIL ON RECORD
* HEATWAVES OF MID-AUGUST
* 3RD WARMEST AUGUST ON RECORD
* 2ND WARMEST SEPTEMBER ON RECORD
* WARMEST DECEMBER ON RECORD
* 2025 FINISHED AS 2ND WARMEST YEAR FOR THE AIRPORT (TIED WITH 2024)
MONTHLY WEATHER RECAPS...
JANUARY...MILD START TO THE NEW YEAR AS A WARM FRONT BROUGHT RAIN
AND ABOVE NORMAL TEMPERATURES THROUGH THE FIRST WEEK OF JANUARY.
THEN, SEASONABLY COOL AND MAINLY DRY THROUGH THE 30TH. PERSISTENT
HIGH PRESSURE ALSO ALLOWED FOR COOLER MORNINGS DURING THE SECOND
HALF OF THE MONTH. THE AIRPORT RECORDED 12 DAYS OF BELOW FREEZING
LOW TEMPERATURES RANGING BETWEEN 25-30 DEGREES. RAIN EVENTUALLY
RETURNED ON THE 31ST. BUT, THE MONTH FINISHED WITH A DEFICIT OF OVER
2 INCHES BELOW NORMAL PRECIPITATION.
FEBRUARY...SEASONABLY COOL WITH OCCASIONAL RAIN MIXED WITH SNOW AT
TIMES THROUGH THE FIRST TEN DAYS OF FEBRUARY. TEMPERATURES THEN
TRENDED COOLER THROUGH THE 14TH AS EAST WINDS DROVE A COLDER AIR
MASS INTO THE AREA. A LOW PRESSURE SYSTEM PRODUCED MEASUREABLE SNOW
THE 13TH AND 14TH, WITH 3 INCHES OF TOTAL SNOWFALL OBSERVED. THEN
TEMPERATURES TRENDED WARMER THROUGH THE SECOND HALF OF THE MONTH. A
RECORD HIGH TEMPERATURE OF 70 DEGREES WAS SET ON THE 27TH; ONLY THE
3RD TIME A TEMPERATURE OF 70 DEG+ HAS BEEN RECORDED IN FEBRUARY AT
PDX. A SERIES OF FRONTAL SYSTEMS ASSOCIATED WITH A MODERATE TO
STRONG ATMOSPHERIC RIVER BROUGHT PERIODS OF HEAVY RAIN THE 22ND TO
24TH. OVERALL, FEBRUARY RECEIVED ABOVE NORMAL PRECIPITATION.
MARCH...MOSTLY DRY AND SLIGHTLY ABOVE AVERAGE TEMPERATURES TO START
THE MONTH OF MARCH. THEN, A RAINY PATTERN SETTLED IN WITH COOLER
TEMPEARTURES LATER ON THE 9TH. A SERIES OF FRONTAL SYSTEMS BROUGHT
PERIODS OF MODERATE RAINFALL THE 12TH TO 15TH, FOLLOWED BY
OCCASIONAL RAIN SHOWERS. TEMPERATURES WARMED AGAIN BY THE 23RD WITH
RECORD HIGHS ON THE 25TH AND 26TH. ON THE 26TH, THE HIGH OF 82 SET
THE WARMEST TEMPERATURE FOR THE MONTH OF MARCH ON RECORD. A RARE
SLIGHT RISK OF SEVERE THUNDERSTORMS WAS ALSO ISSUED ON THE 26TH, BUT
SEVERE STORMS DID NOT MATERIALIZE. THEN, TYPICAL SPRING WEATHER WITH
SHOWERS AND NEAR AVERAGE TEMPERATURES TO END THE MONTH. MARCH
RAINFALL WAS ABOVE NORMAL.
APRIL...SEASONABLE WEATHER WITH SCATTERED SHOWERS CONTINUED INTO
APRIL. HIGH PRESSURE AND OFFSHORE FLOW ALLOWED TEMPERATURES TO WARM
INTO THE 70S THE 4TH-5TH. ON THE 6TH, A FRONT BROUGHT THE MOST
SUBSTATIONAL RAIN OF THE MONTH. THEN, MOSTLY DRY CONDITIONS FOLLOWED
WITH ABOVE AVERAGE TEMPERATURES. A RECORD HIGH OF 81 DEGREES WAS
RECORDED ON THE 24TH. ON THE 29TH, A WEAK FRONT BROUGHT ANOTHER
ROUND OF LIGHT RAIN. BUT, MUCH BELOW NORMAL RAINFALL OCCURRED IN
APRIL.
MAY...MAINLY WARM AND DRY START TO THE MONTH WITH DOMINATE HIGH
PRESSURE THROUGH THE 10TH. A CHANGE IN THE WEATHER PATTERN BROUGHT
COOLER AND WET CONDITIONS FOR MUCH OF THE MIDDLE OF MAY. HEAVY
SHOWERS BROUGHT RECORD RAINFALL OF 1.23 INCHES TO PDX ON THE 17TH.
TEMPERATURES WARMED AGAIN INTO THE 70S TO MID 80S WITH PREDOMINATELY
DRY CONDIITIONS DURING THE FINAL 9 DAYS OF THE MONTH. FINISHED THE
MONTH OVER A HALF INCH BELOW NORMAL PRECIPITATION.
JUNE...JUNE BEGAN WITH NEAR NORMAL WEATHER CONDITIONS, INCLUDING
LIGHT RAIN SHOWERS ON THE 4TH. MUCH WARMER TEMPERATURES OCCURRED THE
5TH THROUGH 10TH, WITH HIGHS RANGING FROM THE MID 80S TO MID 90S,
PEAKING ON THE 8TH SETTING A DAILY RECORD HIGH OF 96 DEGREES. THEN,
CONDITIONS RETURNED CLOSER TO AVERAGE AND DRY. A LOW PRESSURE SYSTEM
BROUGHT WIDESPREAD RAIN SHOWERS THE 20TH TO 21ST. A DAILY RECORD
RAINFALL OF 0.89 OCCURRED ON THE 21ST. MOSTLY DRY WEATHER WAS
OBSERVED THROUGH THE REMAINDER OF THE MONTH. DURING THE FINAL TWO
DAYS OF JUNE, TEMPERATUERS WARMED BACK INTO THE 90S.
JULY...OVERALL, IT WAS A MOSTLY WARM AND DRY JULY. NO NEW RECORDS
WERE SET THIS MONTH, WITH THE 16TH SEEING THE WARMEST DAY OF 97
DEGREES. LOW PRESSURE THE 20TH AND 21ST PRODUCED RAIN SHOWERS AND
COOLER TEMPERATURES. SEASONABLE CONDITIONS FINISHED OUT THE MONTH.
AUGUST...SEASONABLE TEMPERATURES ON THE FIRST WAS FOLLOWED BY A
SLIGHT COOLING TREND IN EARLY AUGUST AS INCREASING ONSHORE FLOW
COOLED TEMPERATURES INTO THE LOWER 70S. A FRONT BROUGHT WELCOMED
WETTING RAIN ON THE 6TH. BUILDING HIGH PRESSURE INDUCED A WARMING
TREND, WITH THREE CONSECUTIVE DAYS OF 99 DEGREES THE 10TH THROUGH
12TH. BY MID-MONTH, A STRONG UPPER TROUGH DROPPED OUT OF GULF OF
ALASKA, BRINGING COOLER TEMPERATURES AND LIGHT RAIN THE 15TH TO
16TH. HIGH PRESSURE STRENGTHENED AGAIN, BRINGING A PROLONGED STRETCH
OF HOT AND DRY WEATHER, WITH HIGHS PEAKING AT 102 DEGREES ON THE
22ND (DAILY RECORD) AND 100 DEGREES THE 23RD. SEASONABLY WARM AND
MOSTLY DRY CONDITIONS CONTINUED, AS THE MONTH FINISHED AS THE 3RD
WARMEST AUGUST ON RECORD.
SEPTEMBER...SEASONABLE TEMPERATURES ON LABOR DAY WAS FOLLOWED BY
WARMER TEMPERATURES THE 2ND THROUGH 4TH AS HIGH PRESSURE BUILT OVER
THE REGION. THEN, SOMEWHAT COOLER TEMPERATURES AS ONSHORE FLOW
RETURNED WITH A FEW LIGHT RAIN SHOWERS. A COLD FRONT BROUGHT MORE
WIDESPREAD RAIN ON THE 14TH. SEASONABLY WARM AND DRY WEATHER
RETURNED THROUGH THE 28TH, EXCEPT ON THE 21ST WHEN ANOTHER FRONT
BROUGHT MORE RAIN TO THE AREA. MORE ACTIVE WEATHER ARRIVED THE 29TH
CONTINUING THROUGH THE END OF THE MONTH.
OCTOBER...COOL AND WET WEATHER CONTINUED INTO THE FIRST PART OF
OCTOBER AS MORE FALL-LIKE FRONTAL SYSTEMS MOVED ACROSS THE AREA.
THEN, OFFSHORE FLOW BROUGHT AN EXTENDED PERIOD OF DRY WEATHER ALONG
WITH TEMPERATURES WARMING INTO THE 70S THE 5TH TO 7TH. COOLER
TEMPERATURES AS A COLD FRONT RETURNED ONSHORE FLOW ON THE 8TH, WHILE
A LOW PRESSURE SYSTEM OFFSHORE MAINTAINED COOL AND UNSETTLED
WEATHER. A SERIES OF FRONTAL SYSTEMS CONTINUED, BRINGING MORE
MODERATE RAINFALL THE 18TH AND AGAIN THE 24TH. OVERALL, ABOVE
AVERAGE RAINFALL FELL FOR OCTOBER.
NOVEMBER...A WET START TO NOVEMBER AS A SERIES OF FRONTAL SYSTEMS
MOVED THROUGH THE AREA WITH BREEZY SOUTH WINDS. DRY WEATHER THE 8TH
THROUGH 12TH AS HIGH PRESSURE RETURNED OVER THE REGION. ABOVE AVERAGE
TEMPERATURES CONTINUED THROUGH THE 15TH. THEN, MORE SEASONABLE COOL
AND WET WEATHER OCCURRED AS AN ACTIVE AND PROGRESSIVE PATTERN
CONTINUED THROUGH MUCH OF THE REMAINDER OF THE MONTH. A COLD FRONT
MOVED THROUGH THE AREA ON THANKSGIVING, THE 27TH, PRODUCING RAIN AND
SOUTHERLY WIND GUSTS UP TO 45 MPH. OVERALL IT WAS A WARMER THAN
NORMAL NOVEMBER, BUT NEARLY AN INCH BELOW NORMAL PRECIPITATION FELL.
DECEMBER...A RELATIVELY DRY START TO THE MONTH DID NOT LAST LONG AS
A PATTERN CHANGE ARRIVED ON THE 4TH. A SERIES OF FRONTS BROUGHT WET
WEATHER AND WARMER THAN AVERAGE TEMPERATURES THROUGH THE 7TH. THEN,
A STRONG ATMOSPHERIC RIVER THE 8TH AND 9TH CAUSED MINOR FLOODING AS
2.50 INCHES OF RAIN FELL OVER A 24-HOUR PERIOD. THE AREA REMAINED IN
THE WARM SECTOR AS THE SYSTEM LIFTED NORTH, WITH LOWS IN THE UPPER
50S AND HIGHS AROUND 62 DEGREES THE 10TH AND 11TH. A BRIEF BREAK IN
THE WEATHER BEFORE ANOTHEHR ROUND OF RAIN AND BREEZY WINDS ARRIVED.
A VERY STRONG COLD FRONT THE MORNING OF THE 17TH BROUGHT DAMAGING
WIND GUSTS OUT OF THE WEST OF UP TO 55 MPH. THIS WAS FOLLOWED BY
ANOTHER STRONG ATMOSPHERIC RIVER, SETTING A DAILY PRECIPITATION
RECORD OF 2.10 INCHES. ACTIVE WEATHER CONTINUED THROUGH THE
CHRISTMAS HOLIDAY. THEN, HIGH PRESSURE SETTLED IN WITH CHILLY
MORNING LOWS AROUND 29-33 DEGREES THE FINAL FOUR DAYS OF THE YEAR.
OVERALL, IT WAS A WETTER THAN NORMAL DECEMBER AS NEARLY 3 INCHES
ABOVE NORMAL PRECIPITATION FELL. ALSO FINISHED AS THE WARMEST
DECEMBER ON RECORD AT PDX.
==============================================================
NEW RECORDS SET IN 2025 (PREVIOUS RECORD IN PARENTHESES)
+ INDICATES MOST RECENT OF MULTIPLE PRIOR OCCURRENCES
JANUARY...NO NEW RECORDS SET.
FEBRUARY...
12TH TIED. DAILY COOL LOW TEMP 24 ( 24 /2021+)
27TH NEW. DAILY WARM HIGH TEMP 70 ( 67 /1968 )
MARCH...
25TH NEW. DAILY WARM HIGH TEMP 80 ( 74 /1966 )
26TH NEW. DAILY WARM HIGH TEMP 82 ( 73 /1994 )
APRIL...
24TH NEW. DAILY WARM HIGH TEMP 81 ( 80 /2018 )
MAY...
17TH NEW. DAILY RAINFALL 1.23" (1.20"/1991 )
JUNE...
8TH NEW. DAILY WARM HIGH TEMP 96 ( 94 /1955 )
21ST NEW. DAILY RAINFALL 0.98" (0.44"/1943 )
JULY...NO NEW RECORDS SET.
AUGUST...
22ND NEW. DAILY WARM HIGH TEMP 102 ( 98 /1942 )
SEPTEMBER...NO NEW RECORDS SET.
OCTOBER...NO NEW RECORDS SET.
NOVEMBER...NO NEW RECORDS SET.
DECEMBER...
9TH NEW. DAILY RAINFALL 1.66" (1.42"/2010 )
10TH NEW. DAILY WARM LOW TEMP 58 ( 57 /2004 )
15TH NEW. DAILY WARM HIGH TEMP 61 ( 59 /1959 )
16TH TIED. DAILY WARM HIGH TEMP 60 ( 60 /1974 )
18TH NEW. DAILY RAINFALL 2.10" (1.26"/2021 )
=============================================================
2025 PORTLAND MONTHLY TEMPERATURE/PRECIPITATION RANKINGS
THIS TABLE SHOWS WHERE EACH MONTH/YEAR RANKS IN PORTLAND'S
CLIMATE RECORD (OCT 1940-2025). RANKINGS APPLY TO ALL OF THE
SAME MONTH: EX. WHERE JUNE 2025 COMPARES TO ALL OTHER JUNES.
JA FE MA AP MA JU JL AU SE OC NO DE 2025
AVG T 33 45 7 2 17 16 13 3 2 34 7 1 2
PRECIP 68 30 23 77 46 30 46 42 55 22 54 13 47
MAX T 21 53 18 4 21 12 16 8 19 34 12 1 3
MIN T 52 37 1 4 18 22 17 3 3 27 7 1 3
PORTLAND'S RANGE IS 1 TO 85, WHERE 1 = WARMEST OR WETTEST
85 = DRIEST OR COLDEST
=============================================================
2025 PORTLAND AIRPORT TEMPERATURE DATA
+ BY DATE = MOST RECENT OF MULTIPLE OCCURENCES
|--- AVERAGES ----|MEAN T DEPART| EXTREME TEMPS & DATE|
MONTH |HIGHS LOWS MEAN| FROM NORMAL | HIGHEST LOWEST |
--------------------------------------------------------------
JAN 48.4 34.3 41.3 -0.6 DEG 56 / 6TH 25 /28TH+
FEB 49.4 36.4 42.9 -1.2 DEG 70 /27TH 24 /12TH
MAR 58.0 43.7 50.8 +2.5 DEG 82 /26TH 36 / 6TH
APR 67.2 45.7 56.4 +3.6 DEG 81 /24TH 37 / 4TH
MAY 70.5 49.8 60.1 +0.7 DEG 86 /30TH 40 / 4TH
JUN 77.0 54.6 65.8 +1.6 DEG 96 / 8TH 47 /14TH
JUL 83.6 59.1 71.4 +1.2 DEG 97 /16TH 54 / 5TH+
AUG 84.9 62.4 73.6 +3.0 DEG 102 /22ND 54 / 8TH
SEP 78.2 57.1 67.7 +2.3 DEG 90 / 2ND 48 /15TH
OCT 62.9 46.9 57.6 -0.7 DEG 79 / 7TH 39 /30TH+
NOV 55.5 43.9 49.7 +2.6 DEG 63 / 5TH 34 /30TH
DEC 52.6 42.3 47.4 +5.8 DEG 62 /11TH+ 29 /30TH
2025 65.8 48.1 56.8 +1.7 DEG 102 /AUG 22 24 /FEB 12
NORMAL 63.9 46.2 55.1
DAYS IN 2025 WITH TEMPERATURE OF...
|------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
<=32 60+ 70+ 80+ 90+ 100+ <=20 <=32 60+ 70+
--------------------------------------------------------------
JAN 0 0 0 0 0 0 0 12 0 0
FEB 0 4 1 0 0 0 0 7 0 0
MAR 0 9 3 2 0 0 0 0 0 0
APR 0 24 12 1 0 0 0 0 0 0
MAY 0 30 16 6 0 0 0 0 0 0
JUN 0 29 25 11 4 0 0 0 4 0
JUL 0 31 31 24 7 0 0 0 14 0
AUG 0 31 31 22 7 2 0 0 25 0
SEP 0 30 28 12 1 0 0 0 11 0
OCT 0 24 3 0 0 0 0 0 0 0
NOV 0 8 0 0 0 0 0 0 0 0
DEC 0 4 0 0 0 0 0 4 0 0
2025 0 224 150 78 19 2 0 23 54 0
NORMAL 1 202 126 62 15 <1 2 31 32 0
FIRST/LAST OCCURRENCES OF... IN 2025 AVERAGE
LAST 32 DEG OR COLDER IN SPRING 14 FEB (26 MAR)
FIRST 70+ DEG OF THE YEAR 27 FEB ( 2 APR)
FIRST 80+ DEG OF THE YEAR 25 MAR ( 8 MAY)
FIRST 90+ DEG OF THE YEAR 8 JUN ( 4 JUN)
LAST 90+ DEG OF THE YEAR 2 SEP ( 5 SEP)
LAST 80+ DEG OF THE YEAR 27 SEP (28 SEP)
LAST 70+ DEG OF THE YEAR 7 OCT (17 OCT)
FIRST 32 DEG OR COLDER OF AUTUMN 1 DEC (12 NOV)
==============================================================
2025 PORTLAND AIRPORT RAINFALL DATA...
TOTAL DEPARTURE DAYS WITH AT LEAST... GREATEST IN
MONTH RAIN FM NORMAL 0.01 0.10 0.50 1.00 24HRS & DATE
---------------------------------------------------------------
JAN 2.93 -2.10 9 5 3 0 0.86 JAN 1-2
FEB 4.34 +0.66 18 11 3 0 1.65 FEB 22-23
MAR 2.70 -1.27 23 14 3 0 1.12 MAR 12-13
APR 1.79 -1.10 11 3 0 0 0.51 APR 6-7
MAY 2.44 -0.07 10 4 1 1 1.28 MAY 16-17
JUN 1.34 -0.29 4 3 2 0 1.21 JUN 20-21
JUL 0.08 -0.43 2 2 0 0 0.33 JUL 20-21
AUG 0.60 +0.06 4 2 0 0 0.43 AUG 6
SEP 0.74 -0.78 6 2 1 0 0.63 SEP 14
OCT 3.15 -0.27 15 11 2 0 0.93 OCT 24-25
NOV 4.53 -0.92 18 13 2 0 0.78 NOV 1
DEC 8.51 +2.74 20 10 6 3 2.50 DEC 8-9
2025 35.72 -1.20 140 80 23 4 2.50 DEC 8-9
NORMAL 36.92 156 93 20 4
TOTAL SNOWFALL... 3.0 INCHES ( NORMAL IS 4.2 INCHES )
PORTLAND WATER YEAR 2024-25 (1 OCT 2024 THROUGH 30 SEP 2025)
35.05 INCHES ( 95% OF NORMAL, 1.87" BELOW NORMAL)
============================================================
2025 PORTLAND AIRPORT WIND AND PRESSURE DATA...
AVERAGE SPEED (MPH) STRONGEST WIND GUST
2025 (NORMAL) DIRECTION SPEED DATE
------------------------------------------------------------
JAN 4.9 (9.1) EAST 34 MPH JAN 25+
FEB 7.6 (8.4) EAST 52 MPH FEB 13+
MAR 6.8 (7.5) EAST 40 MPH MAR 30
APR 5.5 (7.0) SOUTH 39 MPH APR 7
MAY 5.5 (6.6) NORTHWEST 32 MPH MAY 31+
JUN 5.8 (6.8) NORTHWEST 30 MPH JUN 2
JUL 6.2 (7.0) NORTHWEST 33 MPH JUL 13
AUG 5.5 (6.6) SOUTH 29 MPH AUG 15
SEP 5.2 (6.0) SOUTHEAST 32 MPH SEP 30+
OCT 6.1 (6.2) SOUTH 44 MPH OCT 25
NOV 6.7 (7.9) SOUTH 45 MPH NOV 27
DEC 7.2 (9.0) NORTHWEST 55 MPH DEC 17
2025 6.1 MPH (7.3) NORTHWEST 55 MPH DEC 17
2025 BAROMETRIC PRESSURE EXTREMES...
HIGHEST 30.72 INCHES 22 JAN ( 912 AM PST )
LOWEST 29.25 INCHES 24 DEC ( XXX PM PST )
==============================================================
2025 LOCAL RIVER EXTREMES
WILLAMETTE RIVER (AT MORRISON ST BRIDGE, DOWNTOWN PORTLAND)
HIGHEST 13.7 FT 19 DEC (FLOOD STAGE IS 18.0 FT)
LOWEST -0.3 FT 16 SEP
COLUMBIA RIVER (NEAR INTERSTATE 5 BRIDGE, VANCOUVER WA)
HIGHEST 13.5 FT 19 DEC (FLOOD STAGE IS 16.0 FT)
LOWEST -0.4 FT 16 SEP
===============================================================
PORTLAND AIRPORT CLIMATE PERIOD OF RECORDS... OCT 1940 TO 2025
PORTLAND AIRPORT CLIMATE NORMALS... 1991 TO 2020
===============================================================
DATA COMPILED BY HARTSOCK AND BATZ
ADDITIONAL LOCAL CLIMATE DATA AVAILABLE ON OUR WEBSITE AT:
HTTPS://WWW.WEATHER.GOV/WRH/CLIMATE?WFO=PQR
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