Climatological Report (Annual)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
770
CXUS56 KPQR 201534
CLASLE
ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
1200 PM PST THU 1 JAN 2026
...SALEM 2025 WEATHER IN REVIEW...
2025 NOTABLE WEATHER EVENTS & RECORDS
* LATE MARCH WARM-UP
* HEATWAVES OF MID-AUGUST
* 3RD WARMEST DECEMBER ON RECORD
* ATMOSPHERIC RIVERS OF DECEMBER
* 4TH WARMEST YEAR ON RECORD FOR THE AIRPORT
2025 MONTHLY WEATHER SUMMARIES...
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 13 DAYS OF BELOW FREEZING
LOW TEMPERATURES RANGING BETWEEN 24-30 DEGREES. RAIN EVENTUALLY
RETURNED ON THE 31ST. BUT, THE MONTH FINISHED WITH A DEFICIT OF OVER
3 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. THEN TEMPERATURES TRENDED WARMER THROUGH THE
SECOND HALF OF THE MONTH. A SERIES OF FRONTAL SYSTEMS ASSOCIATED
WITH A MODERATE TO STRONG ATMOSPHERIC RIVER BROUGHT PERIODS OF HEAVY
RAIN THE 22ND TO 24TH. A NEW DAILY RAINFALL RECORD WAS SET ON THE
23RD WHEN 1.04 INCHES OF RAIN FELL. 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
TEMPERATURES 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 THREE CONSECUTIVE DAYS FROM THE 24TH TO THE 26TH.
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. ON THE 6TH, A FRONT BROUGHT THE MOST SUBSTANTIAL RAIN OF
THE MONTH. THEN, MOSTLY DRY CONDITIONS FOLLOWED WITH ABOVE AVERAGE
TEMPERATURES. 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. TEMPERATURES
WARMED AGAIN INTO THE 70S TO MID 80S WITH PREDOMINATELY DRY
CONDITIONS DURING THE FINAL 9 DAYS OF THE MONTH. FINISHED THE MONTH
ALMOST AN INCH AND A HALF BELOW NORMAL PRECIPITATION.
JUNE....JUNE BEGAN WITH NEAR NORMAL WEATHER CONDITIONS BEFORE MUCH
WARMER TEMPERATURES OCCURRED THE 6TH 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, PRODUCING THE FIRST MEASURABLE RAINFALL FOR THE MONTH. MOSTLY
DRY WEATHER WAS OBSERVED THROUGH THE REMAINDER OF THE MONTH. DURING THE
FINAL TWO DAYS OF JUNE, TEMPERATURES WARMED BACK INTO THE 90S.
JULY...OVERALL, IT WAS A MOSTLY WARM AND DRY JULY. NO NEW RECORDS
WERE SET THIS MONTH, WITH THE 13TH SEEING THE WARMEST DAY OF 98
DEGREES. LOW PRESSURE THE 20TH AND 21ST PRODUCED RAIN SHOWERS BUT NO
MEASURABLE PRECIPITATION AT THE AIRPORT 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. BUILDING HIGH PRESSURE
INDUCED A WARMING TREND, WITH THREE CONSECUTIVE DAYS OF 99 DEGREES
OR WARMER FROM 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 101 DEGREES ON THE 22ND (DAILY RECORD) AND 99 DEGREES THE
23RD. SEASONABLY WARM AND MOSTLY DRY CONDITIONS CONTINUED, AS THE
MONTH FINISHED AS THE 5TH 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. DAILY RECORD HIGH OF 93 WAS TIED ON THE
16TH. 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 AND EVEN LOWER 80S THE 5TH TO
7TH. THE AIRPORT REACHED 81 ON THE 7TH, THE LAST DAY OF THE YEAR TO
REACH OVER 70. 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 19TH AND AGAIN THE 24TH THROUGH 26TH.
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 BROUGHT NEARLY 2 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 ANOTHER ROUND OF RAIN AND BREEZY WINDS ARRIVED. THIS WAS FOLLOWED
BY ANOTHER STRONG ATMOSPHERIC RIVER, SETTING A DAILY PRECIPITATION
RECORD OF 2.93 INCHES ON THE 18TH. ACTIVE WEATHER CONTINUED THROUGH THE
CHRISTMAS HOLIDAY. THEN, HIGH PRESSURE SETTLED IN WITH CHILLY MORNING
LOWS AROUND 27-34 DEGREES THE FINAL FOUR DAYS OF THE YEAR. OVERALL, THE
MONTH ENDED CLOSE TO NORMAL FOR RAINFALL AND ENDED UP BEING THE 3RD
WARMEST DECEMBER ON RECORD FOR SALEM.
==============================================================
NEW RECORDS SET IN 2025 (PREVIOUS RECORD IN PARENTHESES)
+ INDICATES MOST RECENT OF MULTIPLE PRIOR OCCURRENCES
JANUARY...NO NEW RECORDS SET.
FEBRUARY...
23RD NEW. DAILY RAINFALL 1.04" (0.96"/1996 )
MARCH...
24TH NEW. DAILY WARM HIGH TEMP 74 ( 70 /1979 )
25TH NEW. DAILY WARM HIGH TEMP 75 ( 72 /1996 )
26TH NEW. DAILY WARM HIGH TEMP 77 ( 74 /1994 )
APRIL...NO NEW RECORDS SET.
MAY...NO NEW RECORDS SET.
JUNE...
8TH NEW. DAILY WARM HIGH TEMP 96 ( 95 /1955 )
JULY...NO NEW RECORDS SET.
AUGUST...
22ND NEW. DAILY WARM HIGH TEMP 101 ( 100 /1942 )
SEPTEMBER...
16TH TIED. DAILY WARM HIGH TEMP 93 ( 93 /1994+)
OCTOBER...NO NEW RECORDS SET.
NOVEMBER...
22ND NEW. DAILY WARM HIGH TEMP 65 ( 64 /1983 )
DECEMBER...
9TH NEW. DAILY RAINFALL 1.74" (1.63"/1987 )
10TH NEW. DAILY WARM LOW TEMP 57 ( 54 /2004 )
15TH TIED. DAILY WARM HIGH TEMP 60 ( 60 /1976 )
16TH NEW. DAILY WARM HIGH TEMP 61 ( 60 /1974 )
18TH NEW. DAILY RAINFALL 2.93" (2.50"/1917 )
==============================================================
2025 SALEM MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS
THIS TABLE SHOWS WHERE EACH MONTH/YEAR RANKS IN SALEM`S CLIMATE
RECORD (1892-2025). RANKINGS APPLY TO ALL OF THE SAME MONTH:
FOR EXAMPLE, WHERE JUNE 2025 COMPARES TO ALL OTHER JUNES.
JA FE MA AP MA JU JL AU SE OC NO DE 2025
AVG T 43 29 24 12 37 16 9 5 7 77 14 3 4
PRECIP 116 28 23 105 114 82 101 80 69 53 78 51 84
MAX T 16 33 45 17 41 16 17 14 32 85 22 4 9
MIN T 76 30 7 22 38 23 8 2 2 54 14 4 5
SALEM`S RANGE IS 1 TO 133, WHERE 1 = WARMEST OR WETTEST
133 = DRIEST OR COLDEST
===============================================================
2025 SALEM MCNARY AIRPORT TEMPERATURE DATA
(+ BY DATE INDICATES LAST OF SEVERAL OCCURRENCES LISTED)
|--- AVERAGES ----| MEAN T DEPART| EXTREME TEMPS & DATE|
MONTH |HIGHS LOWS MEAN| FROM NORMAL | HIGHEST LOWEST |
--------------------------------------------------------------
JAN 50.2 33.7 42.0 -0.1 DEG 59 / 6TH 24 /28TH+
FEB 52.4 37.5 44.9 +0.9 DEG 67 /27TH 23 /12TH
MAR 56.4 41.0 48.7 +1.2 DEG 77 /26TH 32 / 7TH
APR 64.8 42.0 53.4 +2.1 DEG 76 /14TH 34 / 4TH
MAY 69.6 46.1 57.9 +0.2 DEG 85 /30TH 37 / 4TH
JUN 78.1 51.6 64.9 +2.2 DEG 97 /30TH 41 / 2ND
JUL 86.3 56.8 71.5 +2.2 DEG 98 /13TH 49 / 5TH
AUG 86.2 58.7 72.4 +3.2 DEG 102 /11TH 50 / 8TH
SEP 78.5 53.7 66.1 +2.1 DEG 93 /16TH 43 /26TH
OCT 63.1 43.4 53.2 -1.1 DEG 81 / 7TH 34 /30TH
NOV 55.1 42.1 48.6 +2.3 DEG 65 /15TH 32 /18TH
DEC 52.2 41.1 46.7 +5.4 DEG 62 /11TH+ 27 /31ST
2025 66.1 45.6 55.9 +1.8 DEG 102/JUL 11 23/FEB 12
NORMAL 64.4 43.9 54.1
DAYS WITH TEMPERATURES IN 2025 WHERE...
|------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
<=32 60+ 70+ 80+ 90+ 100+ <=20 <=32 60+ 70+
--------------------------------------------------------------
JAN 0 0 0 0 0 0 0 15 0 0
FEB 0 8 0 0 0 0 0 6 0 0
MAR 0 8 3 0 0 0 0 1 0 0
APR 0 21 6 0 0 0 0 0 0 0
MAY 0 28 15 4 0 0 0 0 0 0
JUN 0 29 26 11 4 0 0 0 2 0
JUL 0 31 31 26 10 0 0 0 7 0
AUG 0 31 31 22 10 3 0 0 14 1
SEP 0 30 29 11 2 0 0 0 5 0
OCT 0 23 3 1 0 0 0 0 0 0
NOV 0 8 0 0 0 0 0 1 0 0
DEC 0 4 0 0 0 0 0 4 0 0
2025 0 221 144 75 26 3 0 27 28 1
NORMAL 2 201 128 66 15 1 2 49 7 0
FIRST/LAST OCCURRENCES OF... IN 2025 AVERAGE
LAST 32 DEG OR COLDER IN SPRING 7 MAR (13 APR)
FIRST 70+ DEG OF THE YEAR 24 MAR (31 MAY)
FIRST 80+ DEG OF THE YEAR 1 MAY ( 6 MAY)
FIRST 90+ DEG OF THE YEAR 8 JUN (15 JUN)
LAST 90+ DEG OF THE YEAR 16 SEP ( 8 SEP)
LAST 80+ DEG OF THE YEAR 7 OCT ( 1 OCT)
LAST 70+ DEG OF THE YEAR 7 OCT (21 OCT)
FIRST 32 DEG OR COLDER IN AUTUMN 18 NOV (31 OCT)
==============================================================
2025 SALEM MCNARY 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 2.65 -3.43 9 6 2 0 0.96 JAN 30-31
FEB 6.41 +1.87 18 12 4 2 1.83 FEB 24-25
MAR 6.22 +1.87 22 14 4 1 1.31 MAR 14-15
APR 1.46 -1.66 8 4 1 0 0.81 APR 6-7
MAY 0.81 -1.44 11 3 0 0 0.27 MAY 11
JUN 0.91 -0.34 2 2 1 0 0.54 JUN 21
JUL T -0.25 0 0 0 0 T JUL 10
AUG 0.13 -0.26 3 1 0 0 0.12 AUG 15-16
SEP 1.29 -0.17 7 3 1 0 0.88 SEP 14
OCT 3.34 -0.13 16 9 2 0 0.79 OCT 24-25
NOV 5.21 -0.74 18 13 4 0 0.96 NOV 3
DEC 7.36 +0.39 16 10 4 2 2.96 DEC 18
2025 35.79 -5.04 130 77 23 5 2.96 DEC 18
NORMAL 40.83 146 90 26 7
SALEM WATER YEAR 2024-25 (1 OCT 2024 THROUGH 30 SEP 2025)
38.54 INCHES ( 96% OF NORMAL, 1.47" BELOW NORMAL)
============================================================
2025 SALEM MCNARY AIRPORT WIND AND PRESSURE DATA...
AVERAGE SPEED (MPH) STRONGEST WIND GUST
MONTH 2025 NORMAL DIRECTION SPEED DATE
----------------------------------------------------------
JAN 4.4 (7.1) SOUTH 34 MPH JAN 31
FEB 6.7 (6.9) SOUTH 46 MPH FEB 24
MAR 7.8 (7.4) SOUTHWEST 45 MPH MAR 27+
APR 5.3 (6.2) SOUTH 32 MPH APR 10
MAY 5.8 (6.4) WEST 31 MPH MAY 17
JUN 6.3 (6.5) NORTH 30 MPH JUN 1
JUL 6.2 (6.5) NORTH 32 MPH JUL 15
AUG 5.3 (6.0) SOUTH 26 MPH AUG 15
SEP 4.8 (5.5) SOUTH 36 MPH SEP 30
OCT 5.6 (5.7) SOUTH 45 MPH OCT 25
NOV 5.6 (7.1) SOUTH 44 MPH NOV 5
DEC 7.2 (7.1) SOUTH 39 MPH DEC 18+
2025 5.9 (6.6) SOUTH 46 MPH FEB 24
2025 BAROMETRIC PRESSURE EXTREMES...
HIGHEST 30.69 INCHES 22 JAN ( 856 AM PST )
LOWEST 29.26 INCHES 24 DEC ( 556 AM PST )
============================================================
2025 SALEM WILLAMETTE RIVER DATA (AT DOWNTOWN)...
HIGHEST 22.05 FT 20 DEC (FLOOD STAGE IS 28.0 FT)
LOWEST 4.98 FT 31 JUL
============================================================
SALEM MCNARY AIRPORT PERIOD OF RECORD... 1892 TO 2025
SALEM MCNARY 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
$$