Climatological Report (Annual)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
428
CXUS56 KPQR 020104 RRB
CLAEUG
ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
500 PM PST WED 1 JAN 2025
...EUGENE 2024 WEATHER IN REVIEW...
2024 NOTABLE WEATHER EVENTS & RECORDS
* SNOW, ICE AND COLD OF MID-JANUARY
* HEATWAVE OF EARLY JULY
* RECORD WARMEST JULY ON RECORD.
* STRONG THUNDERSTORMS IN JULY
* SUMMER FIRES IN THE CASCADES
* AUGUST THUNDERSTORMS
* DAMAGING WINDSTORM IN NOVEMBER
2024 MONTHLY WEATHER SUMMARIES...
JANUARY...AFTER A DRY NEW YEARS DAY, THE WEATHER TURNED RATHER WET
WITH SEASONAL TEMPERATURES THROUGH THE 11TH. THEN, A VERY STRONG
ARCTIC FRONT MOVED ACROSS THE AREA ON THE 12TH AND 13TH, WITH
TEMPERATURES PLUMMETING 15-20 DEGREES BELOW NORMAL THROUGH THE 16TH.
A MIX OF SNOW AND SLEET, ALONG WITH FREEZING RAIN, AND TEMPERATURES
IN THE 20S. ICE ACCUMULATIONS OF UP TO ONE INCH LED TO POWER OUTAGES
AND TRANSPORTATION DISRUPTIONS ACROSS THE EUGENE AREA. TEMPERATURES
MODERATED BY THE 17TH WITH MORE RAIN. TEMPERATURES TRENDED WARMER
THE LAST 10 DAYS OF JANUARY, AS HIGHS REACHED THE MID TO UPPER 60S
ON THE 27TH AND 28TH. IN FACT, THE HIGH OF 69 ON THE 28TH TIED FOR
THE HIGHEST TEMPERATURE IN JANUARY. THE 10.73 INCHES OF
PRECIPITATION AT EUGENE WAS OVER 4.5 INCHES ABOVE NORMAL.
FEBRUARY...BEGAN THE MONTH QUITE MILD WITH HIGHS IN THE LOWER 60S ON
THE 1ST, COOLING BACK INTO THE 50S AFTERWARDS. LOW PRESSURE OVER
BRITISH COLUMBIA DROPPED SOUTH THE 14TH TO 17TH, BRINGING COOLER
WEATHER. TEMPERATURES ROSE INTO THE LOWER 60S ON THE 22ND AND 23RD.
STRONG MOIST SOUTHWEST FLOW BROUGHT RAIN TO CLOSE THE MONTH. THE
1.15 INCHES OF RAIN ON THE 29TH SET A DAILY RECORD.
MARCH...MARCH BEGAN RATHER COOL AND DAMP AS COOLER AIR REMAINED OVER
THE PACIFIC NORTHWEST, WITH OCCASIONAL SHOWERS. THEN, BRIEF PERIOD
OF HIGH PRESSURE BROUGHT MILDER TEMPERATURES AND DRY WEATHER. A
POTENT FRONT MOVED ONSHORE THE 10TH. HIGH PRESSURE RETURNED WHILE
OFFSHORE FLOW THE 14TH TO 19TH CONTRIBUTED TO RATHER WARM AIR MASS
WITH HIGHS IN THE 70S. THE HIGH PRESSURE RIDGE GRADUALLY WEAKENED
AS LOW PRESSURE PERSISTED JUST OFFSHORE THROUGH THE 29TH,
MAINTAINING COOLER, SHOWERY WEATHER.
APRIL...MILD WEATHER EARLY IN THE MONTH WITH WARMEST DAY ON THE 2ND.
A VIGOROUS UPPER LOW DROPPED OVER THE PACIFIC NW THE 3RD TO 5TH
BRINGING RAIN AND COOLER CONDITIONS. ONSHORE FLOW MAINTAINED
UNSETTLED WEATHER AS OCCASIONAL FRONTS PUSHED ONSHORE. BY THE MIDDLE
OF THE MONTH, RATHER STRONG HIGH PRESSURE RIDGE JUST OFFSHORE
BROUGHT OFFSHORE WINDS WITH WARM DRY WEATHER. COOLER AND SHOWERY
WEATHER RETURNED FOR THE 25TH TO 30TH.
MAY...OVERALL, FAIRLY TYPICAL WEATHER FOR THE MONTH OF MAY. BEGAN
COOL AND SHOWERY AS BROAD UPPER LOW PRESSURE SHIFTED ACROSS THE
PACIFIC NORTHWEST. A STRONG FRONT PUSHED ACROSS THE REGION THE 3RD
AND 4TH WITH MODEST RAINFALL OF OVER TWO INCHES. THE 1.31 INCHES OF
RAINFALL ON THE 3RD SET A DAILY RECORD. HIGH PRESSURE STRENGTHENED
WHILE OFFSHORE FLOW ALLOWED FOR DRY AND WARMING CONDITIONS. A HIGH
OF 88 DEGREES ON THE 11TH WAS THE WARMEST DAY OF THE MONTH. BY THE
16TH, ONSHORE FLOW RETURNED WITH MORE SEASONAL TEMPERATURES ALONG
WITH SPOTTY LIGHT PRECIPITATION AS WEAK FRONTS IN THE FLOW MOVED
ONSHORE. THE STRONGEST FRONT ARRIVED ON THE 21ST. UNEVENTFUL END OF
MAY THANKS TO RATHER PERSISTENT HIGH PRESSURE OFFSHORE AND VARIABLE
ONSHORE FLOW.
JUNE....JUNE STARTED RATHER WET AS A STRONG COLD FRONT PUSHED INTO
THE REGION THE 2ND AND 3RD. THEN, MOSTLY WESTERLY FLOW ALOFT
MAINTAINED NEAR SEASONAL TEMPERATURES. ANOTHER UPPER TROUGH MOVED
ONSHORE FROM THE 15TH TO 17TH, WITH SCATTERED SHOWERS AND COOLER
TEMPERATURES. AFTERWARDS, HIGH PRESSURE STRENGTHENED BRINGING
ANOTHER WARMING TREND WITH HIGHS OF 85 TO 90 DEGREES ON THE 19TH
THROUGH 22ND. WESTERLY FLOW CONTINUED THROUGH THE END OF JUNE,
MAINTAINING MILD AND DRY WEATHER.
JULY...IT WAS THE WARMEST JULY ON RECORD FOR EUGENE. ALSO SET A NEW
RECORD FOR MOST CONSECUTIVE DAYS WITH HIGHS OF AT LEAST 100 DEGREES,
THAT BEING 5 DAYS, BEGINNING THE 5TH AND PEAKING AT 106 ON THE 9TH.
AS HIGH PRESSURE SHIFTED EAST, SOUTHWEST FLOW ALLOWED FOR COOLER
MARINE AIR TO FILTER INLAND. BUT, TEMPERATURES REMAINED ABOVE NORMAL
THROUGH THE 20TH. BY THE 25TH, A RATHER STRONG UPPER TROUGH MOVED
OVER THE REGION. MORE SEASONAL CONDITIONS FINISHED OUT THE MONTH.
AUGUST...BEGAN WARM WITH RETURN OF STRONG HIGH PRESSURE OVER THE
REGION. THEN, VARIABLE ONSHORE FLOW BROUGHT SEASONAL TEMPERATURES. A
FRONT PUSHED ACROSS THE REGION ON THE 12TH, COOLING TEMPERATURES
INTO THE 70S. BY MID-MONTH, A RATHER STRONG UPPER TROUGH
DROPPED OUT OF THE GULF OF ALASKA ON THE 15TH TO 18TH, CREATING A
RATHER UNSTABLE AIR MASS, WITH SHOWERS AND THUNDERSTORMS ON THE
17TH. ANOTHER UPPER LOW MOVED INTO THE REGION FROM THE 21ST TO 25TH,
KEEPING TEMPERATURES ON THE COOLER SIDE ALONG WITH SOME LIGHT RAIN.
HIGH PRESSURE STRENGTHENED WITH A WARMING TREND THE 29TH THROUGH THE
END OF THE MONTH.
SEPTEMBER...AFTER A MILD START TO THE MONTH, HIGH PRESSURE OVER THE
REGION STRENGTHENED, BRINGING MUCH WARMER CONDITIONS FOR THE 4TH
THROUGH 6TH. TEMPERATURES REMAINED WARM THROUGH THE 10TH. BY MID-MONTH,
A RATHER STRONG UPPER TROUGH DROPPED OUT OF THE GULF OF ALASKA ON
THE 10TH TO 12TH, BRINGING COOLER SHOWERY WEATHER. ANOTHER BRIEF
WARMING PERIOD OCCURRED FROM THE 22ND TO 24TH. A STRONG COLD FRONT
MOVED INLAND ON THE 25TH, BRINGING RAIN AND MUCH COOLER TEMPERATURES.
OCTOBER...FALL WAS IN FULL FORCE AS THE MONTH BEGAN WITH A ROLLER
COASTER RIDE. HIGHS IN THE LOWER 80S ON THE 1ST AND 7TH, WHILE A
COLD FRONT MOVED ACROSS THE REGION ON THE 4TH. COOLER MARINE AIR
SPREAD INLAND ON THE 8TH. FRONTS BROUGHT RAIN NEARLY EACH DAY FROM
THE 15TH THROUGH THE 21ST. A STRONGER FRONT MOVED TOWARD THE REGION
THE 26TH, PUSHING INLAND ON THE 27TH, BRINGING RAIN AND COOLER AIR.
SHOWERS AND COOL TEMPERATURES PERSISTED THROUGH THE END OF THE
MONTH.
NOVEMBER...THE WET WEATHER OF LATE OCTOBER ROLLED INTO NOVEMBER WITH
SEASONABLE TEMPERATURES. RELATIVELY DRY FROM THE 5TH TO 8TH. THEN,
FRONTS MOVED ACROSS THE AREA BRINGING RAIN THROUGH THE 25TH. COOLER
AND DRY WEATHER TO END THE MONTH. MONTHLY RAINFALL WAS OVER TWO
INCHES ABOVE NORMAL.
DECEMBER...DRY START TO THE MONTH, BUT THE RAINS CAME WITH ABOVE
AVERAGE TEMPERATURES. FINISHED THE MONTH WITH ABOVE AVERAGE RAINFALL
AS WELL. STORMY CHRISTMAS NIGHT THROUGH THE 26TH WITH BREEZY SOUTH
WINDS WITH GUSTS UP TO 45 MPH.
==============================================================
NEW RECORDS SET IN 2024 (PREVIOUS RECORD IN PARENTHESES)
+ INDICATES MOST RECENT OF MULTIPLE PRIOR OCCURRENCES
JANUARY...
27TH NEW. DAILY WARM LOW TEMP 55 ( 51 /1967 )
28TH NEW. DAILY WARM HIGH TEMP 69 ( 63 /1976 )
*** HIGH OF 69 DEG ON 28TH TIES PREVIOUS RECORD HIGHEST
TEMPERATURE IN JANUARY (1914 AND TWICE IN 1931)
FEBRUARY...
29TH NEW. DAILY RAINFALL 1.15" (0.88"/2012 )
MARCH...
16TH NEW. DAILY WARM HIGH TEMP 74 ( 73 /1947 )
APRIL...
25TH TIED. DAILY WARM LOW TEMP 50 ( 50 /2012+)
MAY...
3RD NEW. DAILY RAINFALL 1.31" (0.86"/1993 )
11TH TIED. DAILY WARM HIGH TEMP 88 ( 88 /1931 )
JUNE... NO NEW RECORDS SET.
JULY...
5TH NEW. DAILY WARM HIGH TEMP 101 ( 99 /2023 )
6TH NEW. DAILY WARM HIGH TEMP 104 ( 100 /1960 )
7TH NEW. DAILY WARM HIGH TEMP 103 ( 98 /1945 )
8TH NEW. DAILY WARM HIGH TEMP 105 ( 98 /1905 )
9TH NEW. DAILY WARM LOW TEMP 61 ( 60 /2019 )
9TH NEW. DAILY WARM HIGH TEMP 106 ( 97 /1926 )
*** HIGH OF 106 ON 9TH TIES HIGHEST TEMP EVER IN JULY.
*** RECORD LONGEST STRING OF HIGHS OVER 100 EVER (PRIOR WAS
4 DAYS IN 2023, 2015 AND 1981).
*** WARMEST JULY (AVG TEMP 72.4 DEG, 4.6 DEG ABOVE NORMAL,
PRIOR RECORD WARMEST JULY WAS 1985 W/ 71.5 DEG)
AUGUST... NO NEW RECORDS SET.
SEPTEMBER...
6TH TIED. DAILY WARM LOW TEMP 60 ( 60 /1906 )
OCTOBER...
12TH TIED. DAILY WARM HIGH TEMP 79 ( 79 /2022 )
NOVEMBER... NO NEW RECORDS SET.
DECEMBER... NO NEW RECORDS SET.
===============================================================
2024 EUGENE MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS
THIS TABLE SHOWS WHERE EACH MONTH/YEAR RANKS IN EUGENE`S
CLIMATE RECORD (DEC 1892-2024). RANKINGS APPLY TO ALL OF THE
SAME MONTH: EX. WHERE JUNE 2024 COMPARES TO ALL OTHER JUNES.
JA FE MA AP MA JU JL AU SE OC NO DE 2024
AVG T 23 16 43 58 46 27 1 19 13 21 54 26 8
PRECIP 24 58 73 82 50 81 64 36 84 74 35 37 44
MAX T 26 25 41 52 45 17 1 25 23 15 68 48 7
MIN T 17 15 47 52 71 75 13 21 13 53 38 17 8
EUGENE`S RANGE IS 1 TO 131, WHERE: 1 = WARMEST OR WETTEST
131 = COLDEST OR DRIEST
===============================================================
2024 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 49.1 37.6 43.3 +1.9 DEG 69 /28TH 19 /16TH
FEB 53.2 39.1 46.1 +2.8 DEG 61 / 1ST 30 / 4TH
MAR 56.7 37.9 47.3 +0.4 DEG 74 /16TH 27 / 7TH
APR 62.1 40.2 51.2 +0.5 DEG 78 / 2ND 32 /18TH
MAY 69.1 43.4 56.3 +0.2 DEG 88 /11TH 35 / 8TH
JUN 77.7 47.7 62.7 +1.8 DEG 90 /21ST 37 /16TH+
JUL 90.7 54.0 72.4 +4.6 DEG 106 / 9TH 48 /27TH
AUG 84.7 53.3 69.0 +1.1 DEG 99 / 1ST 42 /29TH
SEP 79.1 50.3 64.7 +1.8 DEG 99 / 5TH 40 /30TH
OCT 67.7 43.1 55.4 +2.0 DEG 82 / 7TH+ 29 /25TH
NOV 52.8 40.0 46.4 +0.9 DEG 64 / 8TH 31 /30TH
DEC 48.0 38.2 43.1 +2.5 DEG 62 /18TH 30 / 6TH
2024 65.9 43.7 54.8 +1.7 DEG 106 /JUL 9 19/JAN 16
NORMAL 64.3 41.9 53.1
DAYS WITH TEMPERATURES IN 2024 WHERE...
|------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
<=32 60+ 70+ 80+ 90+ 100+ <=20 <=32 60+ 70+
--------------------------------------------------------------
JAN 3 4 0 0 0 0 4 7 0 0
FEB 0 2 0 0 0 0 0 2 0 0
MAR 0 12 3 0 0 0 0 6 0 0
APR 0 17 6 0 0 0 0 1 0 0
MAY 0 26 14 4 0 0 0 0 0 0
JUN 0 30 25 14 1 0 0 0 0 0
JUL 0 31 31 29 15 5 0 0 2 0
AUG 0 31 30 21 10 0 0 0 3 0
SEP 0 30 25 12 6 0 0 0 2 0
OCT 0 25 12 2 0 0 0 2 0 0
NOV 0 3 0 0 0 0 0 2 0 0
DEC 0 1 0 0 0 0 0 6 0 0
2024 3 212 146 82 32 5 4 26 7 0
NORMAL 2 201 128 66 15 1 2 51 2 0
FIRST/LAST OCCURRENCES OF... IN 2024 NORMAL
LAST 32 DEG OR COLDER IN SPRING 18 APR (13 APR)
FIRST 70+ DEG OF THE YEAR 15 MAR (30 MAR)
FIRST 80+ DEG OF THE YEAR 10 MAY (10 MAY)
FIRST 90+ DEG OF THE YEAR 21 JUN (25 JUN)
LAST 90+ DEG OF THE YEAR 24 SEP ( 7 SEP)
LAST 80+ DEG OF THE YEAR 7 OCT (29 SEP)
LAST 70+ DEG OF THE YEAR 26 OCT (21 OCT)
FIRST 32 DEG OR COLDER OF AUTUMN 24 OCT (22 OCT)
==============================================================
2024 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 9.63 +1.59 27 20 9 1 1.59 JAN 26-27
FEB 4.93 +0.26 20 10 3 2 1.30 FEB 28-29
MAR 4.04 -0.60 17 10 3 0 0.80 MAR 1-2
APR 2.17 -1.15 14 5 2 0 0.67 APR 3-4
MAY 2.73 +0.27 8 5 2 1 1.89 MAY 3-4
JUN 0.95 -0.28 6 2 1 0 0.74 JUN 2-3
JUL 0.16 -0.16 3 1 0 0 0.10 JUL 16
AUG 0.79 +0.40 3 2 0 0 0.43 AUG 17
SEP 0.94 -0.45 4 3 1 0 0.50 SEP 11
OCT 2.46 -0.71 12 8 2 0 0.77 OCT 30-31
NOV 8.31 +1.33 20 15 7 2 1.33 NOV 13-14
DEC 8.09 +0.88 21 17 8 0 1.28 DEC 28-29
2024 45.20 +4.37 155 98 38 6 1.89 MAY 3-4
NORMAL 40.83 146 90 26 7
EUGENE WATER YEAR 2023-24 (1 OCT 2023 THROUGH 30 SEP 2024)
38.91 INCHES ( 95% OF NORMAL, 1.92" BELOW NORMAL)
TOTAL SNOWFALL FOR 2024... 1.4 INCHES (AVERAGE: 6.1")
============================================================
2024 EUGENE WIND AND PRESSURE DATA...
AVERAGE SPEED (MPH) STRONGEST WIND GUST
MONTH 2024 NORMAL DIRECTION SPEED DATE
----------------------------------------------------------
JAN 6.8 (6.8) SOUTH 38 MPH JAN 9
FEB 6.3 (7.1) SOUTHWEST 35 MPH FEB 26
MAR 7.7 (7.4) SOUTH 40 MPH MAR 9
APR 6.9 (7.1) SOUTH 33 MPH APR 25
MAY 6.5 (6.6) SOUTHWEST 34 MPH MAY 22
JUN 6.1 (7.0) SOUTHWEST 30 MPH JUN 15
JUL 7.4 (7.5) SOUTH 35 MPH JUL 16
AUG 5.8 (7.1) NORTH 28 MPH AUG 28
SEP 6.5 (6.8) NORTH 31 MPH SEP 29+
OCT 5.6 (6.4) SOUTHWEST 34 MPH OCT 27
NOV 7.0 (7.0) SOUTHEAST 52 MPH NOV 19
DEC 6.3 (7.1) SOUTH 44 MPH DEC 26+
2024 6.6 (7.0) SOUTHEAST 52 MPH NOV 19
2024 BAROMETRIC PRESSURE EXTREMES...
HIGHEST 30.49 INCHES 9 DEC ( 1500 PM PST )
LOWEST 29.34 INCHES 1 MAR ( 654 PM PST )
==============================================================
2024 LOCAL RIVER EXTREMES
WILLAMETE RIVER (NEAR EWEB BUILDING, DOWNTOWN EUGENE)...
HIGHEST 17.5 FT 14 JAN (FLOOD STAGE IS 23.0 FT)
LOWEST 10.1 FT 5 SEP
WILLAMETTE (AT HARRISBURG)...
HIGHEST 12.8 FT 30 DEC (FLOOD STAGE IS 14.0 FT)
LOWEST 1.9 FT 17 JUL
MOHAWK RIVER (AT HILL RD, NORTH OF SPRINGFIELD)...
HIGHEST 14.5 FT 18 JAN (FLOOD STAGE IS 15.0 FT)
LOWEST 0.7 FT 3 OCT
=============================================================
EUGENE AIRPORT CLIMATE PERIOD OF RECORDS... DEC 1892 TO 2024
EUGENE AIRPORT CLIMATE NORMALS... 1991 TO 2020
=============================================================
DATA COMPILED BY ROCKEY AND HARTSOCK
ADDITIONAL LOCAL CLIMATE DATA AVAILABLE ON OUR WEBSITE AT:
HTTPS://WWW.WEATHER.GOV/WRH/CLIMATE?WFO=PQR
$$