Climatological Report (Annual)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
765
CXUS56 KPQR 162214
CLAEUG
ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
1200 PM PST THU 1 JAN 2026
...EUGENE 2025 WEATHER IN REVIEW...
2025 NOTABLE WEATHER EVENTS & RECORDS
* MID-FEBRUARY WINTER STORM
* MID-MARCH HEAVY RAIN AND FLOODING
* 3RD WARMEST AUGUST ON RECORD
* TIED FOR DRIEST JULY ON RECORD
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 20-26 DEGREES BEGINNING THE 18TH.
RAIN EVENTUALLY RETURNED ON THE 31ST. BUT, THE MONTH FINISHED WITH A
DEFICIT OF WELL 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 MEASURABLE SNOW
THE 13TH, WITH 1 INCH OF TOTAL SNOWFALL OBSERVED. THIS WAS FOLLOWED
BY ABOUT A QUARTER INCH OF FREEZING RAIN ON THE 14TH. 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 MODERATE TO HEAVY RAIN THE 22ND
TO 24TH, AS WELL AS BREEZY SOUTHERLY WINDS WITH GUSTS UP TO 51 MPH
ON THE 24TH. OVERALL, FEBRUARY RECEIVED SLIGHTLY 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 10TH. A SERIES OF FRONTAL SYSTEMS BROUGHT
PERIODS OF MODERATE TO HEAVY RAINFALL THE 12TH TO 16TH. AN
ATMOSPHERIC RIVER STALLED OVER LANE COUNTY THE 15TH TO 16TH, LEADING
TO WIDESPREAD FLOODING ACROSS PORTIONS OF THE AREA, INCLUDING EUGENE
AND SPRINGFIELD. OCCASIONAL RAIN SHOWERS FOLLOWED. TEMPERATURES
WARMED AGAIN BY THE 23RD WITH RECORD HIGHS IN THE MID TO UPPER 70S
RECORDED 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 OVER
2.5 INCHES ABOVE NORMAL.
APRIL...SEASONABLE WEATHER WITH SCATTERED SHOWERS CONTINUED INTO
APRIL. HIGH PRESSURE AND OFFSHORE FLOW ALLOWED TEMPERATURES TO WARM
INTO THE MID-70S THE 5TH, SETTING A DAILY RECORD HIGH OF 76 DEGREES.
ON THE 6TH, A FRONT BROUGHT THE MOST SUBSTANTIAL RAIN OF THE MONTH.
THEN, MOSTLY DRY CONDITIONS FOLLOWED WITH ABOVE AVERAGE TEMPS. 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 UNSETTLED CONDITIONS FOR MUCH OF THE MIDDLE OF MAY. A
BROAD LOW PRESSURE SYSTEM BROUGHT SHOWERS TO THE AREA ON THE 12TH,
GIVING THE MOST SUBSTANTIAL RAINFALL OF THE MONTH TO THE SOUTHERN
WILLAMETTE VALLEY. TEMPERATURES WARMED AGAIN INTO THE 70S TO LOWER
80S WITH PREDOMINATELY DRY CONDITIONS DURING THE FINAL 8 DAYS OF THE
MONTH. FINISHED THE MONTH OVER ONE AND A HALF INCH BELOW NORMAL
PRECIPITATION.
JUNE...JUNE BEGAN WITH NEAR NORMAL WEATHER CONDITIONS. MUCH WARMER
TEMPERATURES OCCURRED THE 6TH THROUGH 10TH, WITH HIGHS RANGING FROM
THE UPPER 80S TO MID 90S, PEAKING ON THE 9TH 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. 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 VERY DRY JULY. TIED A
DAILY RECORD HIGH TEMPERATURE OF 99 DEGREES ON THE 13TH. LOW
PRESSURE THE 20TH AND 21ST PRODUCED COOLER TEMPERATURES WITH HIGHS
ONLY REACHING INTO THE MID TO UPPER 70S. SEASONABLE CONDITIONS
FINISHED OUT THE MONTH. WITH ZERO RAINFALL RECORDED, EUGENE ALSO
TIED WITH 12 OTHER YEARS (SINCE 1893) FOR THE DRIEST JULY ON RECORD.
AUGUST...SEASONABLE TEMPERATURES ON THE FIRST WAS FOLLOWED BY A
SLIGHT COOLING TREND IN EARLY AUGUST AS INCREASING ONSHORE FLOW
COOLED TEMPERATURES INTO THE 70S. BUILDING HIGH PRESSURE INDUCED A
WARMING TREND, WITH HIGHS REACHING 99 TO 103 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
16TH. HIGH PRESSURE STRENGTHENED AGAIN, BRINGING A PROLONGED STRETCH
OF HOT AND DRY WEATHER, WITH HIGHS PEAKING AT 99 DEGREES ON THE 22ND
AND 23RD (BOTH DAILY RECORDS). 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 5TH 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 LIGHT 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 AND 6TH, AND REACHING
83 DEGREES ON THE 7TH. COOLER TEMPERATURES FOLLOWED 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 25TH AND
BREEZY SOUTHERLY WINDS WITH GUSTS UP TO 47 MPH. ABOUT A HALF INCH
BELOW 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. SOUTHERLY WINDS WITH
GUSTS UP TO 46 MPH OCCURRED ON THE 5TH. DRY WEATHER THE 7TH 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
BREEZY SOUTHERLY WINDS. OVERALL IT WAS A WARMER THAN NORMAL
NOVEMBER, BUT OVER 2.5 INCHES 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. THE
AREA REMAINED IN THE WARM SECTOR AS AN ATMOSPHERIC RIVER SYSTEM
REMAINED MAINLY TO THE NORTH, WITH LOWS IN THE 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. A VERY STRONG COLD
FRONT THE MORNING OF THE 17TH BROUGHT DAMAGING WIND GUSTS OUT OF THE
WEST OF UP TO 50 MPH. THIS WAS FOLLOWED BY ANOTHER STRONG
ATMOSPHERIC RIVER, SETTING A DAILY PRECIPITATION RECORD OF 2.75
INCHES ON THE 18TH. ACTIVE WEATHER CONTINUED THROUGH THE CHRISTMAS
HOLIDAY. THEN, HIGH PRESSURE SETTLED IN WITH CHILLY MORNING LOWS
AROUND 26-30 DEGREES THE FINAL THREE DAYS OF THE YEAR. OVERALL, IT
WAS ANOTHER MONTH OF BELOW NORMAL PRECIPITATION FOR EUGENE.
==============================================================
NEW RECORDS SET IN 2025 (PREVIOUS RECORD IN PARENTHESES)
+ INDICATES MOST RECENT OF MULTIPLE PRIOR OCCURRENCES
JANUARY...NO NEW RECORDS SET.
FEBRUARY...NO NEW RECORDS SET.
MARCH...
15TH NEW. DAILY RAINFALL 1.34" (1.16"/1912 )
16TH TIED. DAILY RAINFALL 1.38" (1.38"/1993 )
24TH NEW. DAILY WARM HIGH TEMP 76 ( 74 /2014 )
25TH NEW. DAILY WARM HIGH TEMP 74 ( 73 /1997 )
26TH NEW. DAILY WARM HIGH TEMP 77 ( 72 /1969 )
APRIL...
5TH NEW. DAILY WARM HIGH TEMP 76 ( 75 /1952 )
MAY...NO NEW RECORDS SET.
JUNE...
8TH NEW. DAILY WARM HIGH TEMP 94 ( 93 /1955 )
9TH NEW. DAILY WARM HIGH TEMP 96 ( 91 /2015 )
30TH TIED. DAILY WARM HIGH TEMP 96 ( 96 /1951 )
JULY...
13TH TIED. DAILY WARM HIGH TEMP 99 ( 99 /1996+)
AUGUST...
22ND NEW. DAILY WARM HIGH TEMP 99 ( 96 /1988+)
23RD NEW. DAILY WARM HIGH TEMP 99 ( 98 /1911 )
24TH TIED. DAILY WARM HIGH TEMP 96 ( 96 /2010+)
SEPTEMBER...
16TH NEW. DAILY WARM HIGH TEMP 93 ( 91 /1994 )
OCTOBER...NO NEW RECORDS SET.
NOVEMBER...
15TH TIED. DAILY WARM HIGH TEMP 65 ( 65 /1999+)
DECEMBER...
10TH NEW. DAILY WARM LOW TEMP 53 ( 51 /1895 )
11TH TIED. DAILY WARM HIGH TEMP 62 ( 62 /1895 )
18TH NEW. DAILY RAINFALL 2.75" (1.52"/2018 )
===============================================================
2025 EUGENE MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS
THIS TABLE SHOWS WHERE EACH MONTH/YEAR RANKS IN EUGENE`S
CLIMATE RECORD (DEC 1892-2025). 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 83 83 23 20 51 17 9 3 11 92 28 8 11
PRECIP 87 61 18 87 111 102 132 74 96 71 106 71 110
MAX T 63 84 40 16 44 9 6 6 26 63 18 7 6
MIN T 97 69 13 45 82 61 23 3 11 98 41 10 19
EUGENE`S RANGE IS 1 TO 132, WHERE: 1 = WARMEST OR WETTEST
132 = COLDEST OR DRIEST
===============================================================
2025 EUGENE 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 46.6 31.6 39.1 -2.3 DEG 54 /31ST+ 20 /29TH+
FEB 50.1 34.8 42.5 -0.8 DEG 64 /28TH+ 20 /12TH
MAR 57.3 40.7 49.0 +2.1 DEG 77 /26TH 32 / 7TH
APR 64.9 40.0 52.5 +1.8 DEG 76 / 5TH 33 /30TH+
MAY 69.2 43.0 56.3 -0.0 DEG 83 /30TH 33 / 4TH
JUN 78.9 48.2 63.6 +2.7 DEG 96 /30TH+ 39 /15TH
JUL 87.6 53.2 70.4 +2.6 DEG 99 /13TH 42 / 5TH
AUG 87.5 56.1 71.8 +3.9 DEG 103 /11TH 47 / 8TH
SEP 78.8 50.8 64.8 +1.9 DEG 93 /16TH 40 /27TH+
OCT 64.1 40.6 52.4 -1.0 DEG 83 / 7TH 32 /15TH
NOV 55.6 39.9 47.7 +2.2 DEG 65 /15TH+ 30 /18TH
DEC 51.6 39.3 45.5 +4.9 DEG 62 /11TH 26 /30TH
2025 66.0 43.2 54.6 +1.5 DEG 103 /AUG 11 20/FEB 12
NORMAL 64.3 41.9 53.1
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 3 15 0 0
FEB 0 4 0 0 0 0 1 11 0 0
MAR 0 9 3 0 0 0 0 1 0 0
APR 0 23 6 0 0 0 0 0 0 0
MAY 0 29 14 2 0 0 0 0 0 0
JUN 0 29 27 12 4 0 0 0 0 0
JUL 0 31 31 28 11 0 0 0 2 0
AUG 0 31 31 24 11 2 0 0 10 0
SEP 0 30 28 13 3 0 0 0 2 0
OCT 0 26 4 1 0 0 0 1 0 0
NOV 0 7 0 0 0 0 0 4 0 0
DEC 0 3 0 0 0 0 0 4 0 0
2025 0 222 144 80 29 2 4 36 14 0
NORMAL 2 201 128 66 18 1 2 51 2 0
FIRST/LAST OCCURRENCES OF... IN 2025 NORMAL
LAST 32 DEG OR COLDER IN SPRING 7 MAR (13 APR)
FIRST 70+ DEG OF THE YEAR 24 MAR (30 MAR)
FIRST 80+ DEG OF THE YEAR 27 MAY (10 MAY)
FIRST 90+ DEG OF THE YEAR 8 JUN (25 JUN)
LAST 90+ DEG OF THE YEAR 16 SEP ( 7 SEP)
LAST 80+ DEG OF THE YEAR 7 OCT (29 SEP)
LAST 70+ DEG OF THE YEAR 7 OCT (21 OCT)
FIRST 32 DEG OR COLDER OF AUTUMN 15 OCT (22 OCT)
==============================================================
2025 EUGENE 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 4.35 -1.70 10 7 3 1 1.46 JAN 2-3
FEB 4.75 +0.08 15 10 2 1 1.72 FEB 22-23
MAR 7.22 +2.58 21 13 6 2 2.07 MAR 15-16
APR 1.55 -1.77 8 2 2 0 0.85 APR 6-7
MAY 0.94 -1.52 12 1 1 0 0.53 MAY 11-12
JUN 0.54 -0.69 2 1 1 0 0.51 JUN 20-21
JUL 0.00 -0.32 0 0 0 0 0.00 JUL 12
AUG 0.15 -0.24 1 1 0 0 0.15 AUG 16
SEP 0.74 -0.65 7 2 0 0 0.39 SEP 14
OCT 2.62 -0.55 14 6 2 0 0.97 OCT 12-13
NOV 3.47 -2.51 18 12 1 0 0.52 NOV 16-17
DEC 5.51 -1.70 17 10 2 1 2.82 DEC 18-19
2025 32.34 -8.49 117 63 18 5 2.82 DEC 18-19
NORMAL 40.83 146 90 26 7
EUGENE WATER YEAR 2024-25 (1 OCT 2024 THROUGH 30 SEP 2025)
39.60 INCHES ( 97% OF NORMAL, 1.23" BELOW NORMAL)
TOTAL SNOWFALL FOR 2024... 1.0 INCHES (AVERAGE: 6.1")
============================================================
2025 EUGENE WIND AND PRESSURE DATA...
AVERAGE SPEED (MPH) STRONGEST WIND GUST
MONTH 2024 NORMAL DIRECTION SPEED DATE
----------------------------------------------------------
JAN 4.8 (6.8) NORTHWEST 33 MPH JAN 25
FEB 6.7 (7.1) SOUTHWEST 51 MPH FEB 24
MAR 7.8 (7.4) SOUTHEAST 49 MPH MAR 27
APR 5.8 (7.1) SOUTHWEST 31 MPH APR 10
MAY 6.0 (6.6) NORTH 32 MPH MAY 31
JUN 6.9 (7.0) NORTHWEST 35 MPH JUN 1
JUL 6.6 (7.5) NORTHWEST 32 MPH JUL 13
AUG 6.1 (7.1) NORTH 29 MPH AUG 9+
SEP 5.6 (6.8) SOUTH 40 MPH SEP 30
OCT 6.3 (6.4) SOUTH 47 MPH OCT 25
NOV 5.5 (7.0) SOUTHEAST 46 MPH NOV 5
DEC 6.6 (7.1) WEST 49 MPH DEC 17
2025 6.2 (7.0) SOUTHWEST 51 MPH FEB 24
2025 BAROMETRIC PRESSURE EXTREMES...
HIGHEST 30.69 INCHES 22 JAN ( XXX AM PST )
LOWEST 29.24 INCHES 24 DEC ( XXX PM PST )
==============================================================
2025 LOCAL RIVER EXTREMES
WILLAMETE RIVER (NEAR EWEB BUILDING, DOWNTOWN EUGENE)...
HIGHEST 17.5 FT 14 MAR (FLOOD STAGE IS 23.0 FT)
LOWEST 10.1 FT 5 SEP
WILLAMETTE (AT HARRISBURG)...
HIGHEST 13.0 FT 17 MAR (FLOOD STAGE IS 14.0 FT)
LOWEST 1.6 FT 4 DEC
MOHAWK RIVER (AT HILL RD, NORTH OF SPRINGFIELD)...
HIGHEST 17.2 FT 16 MAR (FLOOD STAGE IS 15.0 FT)
LOWEST 0.7 FT 27 AUG
=============================================================
EUGENE AIRPORT CLIMATE PERIOD OF RECORDS... DEC 1892 TO 2025
EUGENE 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
$$