Climatological Report (Annual)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
614
CXUS56 KPQR 050409
CLAEUG
ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
800 PM PST THU 4 JAN 2024
...EUGENE 2023 WEATHER IN REVIEW...
2023 NOTABLE WEATHER EVENTS...
* 2ND WARMEST MAY ON RECORD
* WARMEST AUGUST ON RECORD
*2023: 10TH WARMEST YEAR
2023 MONTHLY WEATHER SUMMARIES...
JANUARY...FAIRLY ACTIVE WEATHER DURING THE FIRST HALF OF JANUARY.
RAIN WAS RECORDED DURING A STRETCH OF 17 DAYS FROM JAN 2ND THROUGH
18TH, BUT THE MONTH STILL ENDED WELL BELOW NORMAL PRECIPITATION. THE
LATTER HALF OF THE MONTH WAS RATHER DRY. BELOW NORMAL TEMPERATURES
DURING LAST 3 DAYS OF THE MONTH WITH BELOW FREEZING LOWS IN THE 20S.
FEBRUARY...IT WAS A COOL FEBRUARY, ALONG WITH ANOTHER MONTH OF WELL
BELOW NORMAL PRECIPITATION. COLDEST MORNING WAS ON THE 25TH, WITH A
MORNING LOW TEMPERATURE OF 20 DEG. CHILLY WET WEATHER ON THE 13TH,
WITH A MIX OF RAIN AND SNOW, AND A HALF INCH OF SNOW MEASURED ON THE
14TH. ACTIVE WEATHER CLOSED THE MONTH WITH A COOL, SHOWERY PATTERN
BRINGING A MIX OF RAIN AND SNOW THE 26TH TO 28TH. THE 1.98 INCHES OF
PRECIPITATION MADE IT THE 12TH DRIEST FEBRUARY. IT WAS ALSO THE 7TH
COOLEST FEBRUARY.
MARCH...OVERALL, IT WAS A COOL MONTH, WITH PLENTY OF CLOUDS AND
PRECIPITATION, AND SLIGHTLY BELOW NORMAL RAINFALL OF 4.50 INCHES. IT
WAS THE 4TH COOLEST MARCH FOR EUGENE. THE OVERALL PATTERN CARRIED
THE LATE FEBRUARY ACTIVE WEATHER PATTERN ON INTO EARLY MARCH. MANY
OF THE DAYS SAW SHOWERS MIXED WITH SNOW AND HAIL AT TIMES. 1 INCH OF
SNOW FELL ON THE 5TH. A PACIFIC FRONT PUSHED INLAND ON THE 13TH,
BRINGING A ROUND OF BREEZY SOUTH WINDS AND HEAVY RAIN TO THE REGION.
MORE MILD WEATHER THE 15TH TO 22ND WITH HIGHS GENERALLY IN THE 50S
TO LOWER 60S. THEN, ANOTHER COLD FRONT PUSHED ACROSS THE REGION AND
ACTIVE WEATHER RESUMED.
APRIL...OVERALL, IT WAS A BIT WETTER AND COOLER THAN MOST APRILS.
THE MONTH CONTINUED TO SEE RATHER PROGRESSIVE WEATHER PATTERN,
MAINTAINING SHOWERY AND COOL CONDITIONS THROUGH THE 23RD. AT THE
CLOSE OF THE MONTH, HIGH PRESSURE BROUGHT MILDER AIR AND A WELCOME
BREAK FROM THE CLOUDS AND PRECIPITATION. TEMPERATURES JUMPED WELL
ABOVE NORMAL 26TH TO 29TH. APRIL 2023 TOTAL RAINFALL OF 4.70 INCHES
MADE IT THE 14TH WETTEST APRIL.
MAY...AFTER A RATHER DANKISH AND DAMP SPRING, MAY BROUGHT MUCH
DELIGHT TO AREA GARDENERS, WITH WARM AND DRIER WEATHER. AN UPPER LOW
OVER THE REGION MAINTAINED COOL WEATHER FOR THE FIRST WEEK. THEN,
HIGH PRESSURE BUILT OVER THE PACIFIC NW BRINGING WARM AND DRY
CONDITIONS ALONG WITH OFFSHORE WINDS. WARMEST STRETCH WAS AROUND
MOTHERS DAY, INCLUDING A STREAK OF 9 CONSECUTIVE DAYS OF HIGHS ABOVE
80 DEGREES BEGAN ON THE 12TH. THE WARMEST DAY ON THE 14TH SET A
DAILY HIGH RECORD OF 94 DEG. FINISHED AS THE 2ND WARMEST MAY ON
RECORD, AS WELL AS THE 5TH DRIEST, RECORDING JUST 0.34 INCH OF
RAINFALL AT KEUG.
JUNE...THE DRY WEATHER OF MAY CONTINUED INTO JUNE. GENERALLY WAS A
WARM JUNE, BUT NO RECORD HIGHS THIS YEAR. STRONGEST FRONT OF THE
MONTH BROUGHT CLOUDS, RAIN AND COOL WEATHER FOR FATHERS DAY. A
STRONG UPPER LOW ARRIVED ON THE 18TH, BRINGING SHOWERS AND A FEW
COOLISH DAYS. TEMPERATURES RAMPED BACK UP ON THE 21ST WITH HIGHS
GENERALLY 80 TO 90 DEGREES THROUGH THE END OF THE MONTH. WARMEST DAY
OF THE MONTH WAS ON THE 30TH, WITH A HIGH OF 93 DEG.
JULY...WARM AND DRY WEATHER CONTINUED. DRIZZLE ON THE 10TH AND 25TH
WERE THE ONLY DROPS OF RAIN IN JULY FOR EUGENE, RECORDING A TOTAL OF
0.01 INCH. THE WARMEST DAY OF THE MONTH OCCURRED ON THE 15TH, WITH A
HIGH OF 100 DEG. THE HIGH OF 98 DEG ON THE 4TH MADE IT THE WARMEST
INDEPENDENCE DAY ON RECORD. JULY ENDED THE 6TH WARMEST JULY.
AUGUST...WARM AND DRY AS HIGH PRESSURE DOMINATED. IN FACT, IT WAS
THE WARMEST AUGUST ON RECORD. MULTI-DAY STRETCH OF HIGHS EXCEEDING
100 DEGREES THE 13TH TO 16TH. THE HOTTEST DAYS OF 105 DEG ON THE
15TH AND 16TH SET RECORD DAILY HIGHS. MOST OF THE MONTH WAS DRY,
EXCEPT LIGHT RAIN ON THE 24TH AND ON THE 28TH. BUT THAT ALL CAME TO
AN END AS AUGUST CLOSED WITH A MODESTLY STRONG FRONT, WITH COOLER
TEMPERATURES AND LIGHT RAIN.
SEPTEMBER...ACTIVE WEATHER CONTINUED IN EARLY SEPTEMBER. AN UNSTABLE
AIRMASS TRIGGERED SHOWERS AND THUNDERSTORMS THROUGH THE 3RD.
AFTERWARDS, SEASONABLY WARM WEATHER, BUT DRY. HIGHS GENERALLY 80 TO
90 THE 6TH TO 17TH. BUT, RETURN TO MORE ACTIVE WEATHER ARRIVED THE
23RD. COOLER AND WET THE LAST WEEK OF THE MONTH AS A SERIES OF
FRONTAL SYSTEMS MOVED ACROSS THE REGION. HIGHS IN THE 60S THE 24TH
TO 30TH WITH RAIN NEARLY EVERY DAY. TOTAL RAINFALL OF 1.66 INCHES
FOR THE MONTH ENDED SLIGHTLY ABOVE NORMAL.
OCTOBER...SEASONABLE WEATHER TO START THE MONTH, ALONG WITH A FRONT
THAT MOVED THROUGH ON THE 2ND. THEN, UNSEASONBLY WARM AND DRY THE
6TH TO 8TH WITH HIGHS IN THE 80S. AFTER THAT, A MORE TYPICAL FALL
WEATHER PATTERN ARRIVED. OCCASIONAL FRONTS BROUGHT RAIN AND
GRADUALLY COOLER TEMPERATURES TO THE REGION. HIGH PRESSURE AT THE
END OF THE MONTH BROUGHT DRY WEATHER AND MILD DAYS, ALONG WITH COOL
NIGHTS. CHILLY MORNINGS TO CLOSE OUT THE LAST FOUR DAYS OF THE MONTH
WITH LOWS 25 TO 30 DEG. TOTAL RAINFALL OF 2.75 INCHES FINISHED
SLIGHTLY BELOW NORMAL.
NOVEMBER...RATHER TYPICAL NOVEMBER WITH NEAR NORMAL TEMPERATURE, BUT
LESS RAINFALL THAN NORMAL. WARMER AND WET START TO THE MONTH AS A
STRONG PACIFIC JET KEPT ACTIVE WEATHER AROUND THROUGH THE 7TH.
RATHER POTENT FRONTS THE 4TH TO 6TH BROUGHT HEAVY RAIN AND
THUNDERSTORMS, WITH WINDS GUSTING TO 35 MPH. HIGH PRESSURE WAS
STRONG ENOUGH FOR A TIME TO BRING DRY WEATHER TO THE REGION FROM
23RD TO 29TH, MAKING FOR A RATHER PLEASANT THANKSGIVING BREAK.
CHILLY MORNINGS ALSO, WITH BELOW FREEZING LOWS 24TH THROUGH 29TH IN
THE 20S. TOTAL RAINFALL OF 3.39 INCHES WAS LESSS THAN 60% OF NORMAL.
DECEMBER...RAIN RETURNED WITH A VENGEANCE TO START THE MONTH. A
SERIES OF ATMOSPHERIC RIVERS BROUGHT HEAVY RAIN DURING THE FIRST
WEEK OF DECEMBER, WITH NEARLY 5 INCHES OF RAIN TO EUGENE. TIED
RECORD WARM HIGH ON THE 5TH (64 DEGREES).
==============================================================
NEW RECORDS SET IN 2023 (PREVIOUS RECORD IN PARENTHESES)
+ INDICATES MOST RECENT OF MULTIPLE OCCURRENCES
JANUARY...
12TH NEW. DAILY WARM HIGH TEMP 62 ( 60 /2021 )
FEBRUARY...
25TH NEW. DAILY COLD LOW TEMP 20 ( 23 /2022+)
MARCH...
27TH NEW. DAILY COOL HIGH TEMP 43 ( 45 /1985 )
APRIL... NO NEW RECORDS SET.
MAY...
14TH NEW. DAILY WARM HIGH TEMP 94 ( 92 /1939 )
15TH NEW. DAILY WARM HIGH TEMP 89 ( 87 /2006+)
*** 2ND WARMEST MAY (AVG TEMP 61.1 DEG, +5.0 ABOVE NORMAL)
JUNE... NO NEW RECORDS SET.
JULY...
4TH NEW. DAILY WARM HIGH TEMP 98 ( 95 /1972 )
5TH NEW. DAILY WARM HIGH TEMP 99 ( 97 /1960 )
*** 5TH WARMEST JULY (AVG TEMP 70.8 DEG, +3.0 ABOVE NORMAL)
AUGUST...
6TH NEW. DAILY WARM LOW TEMP 64 ( 61 /2021 )
10TH TIED. DAILY WARM LOW TEMP 61 ( 61 /1963 )
14TH NEW. DAILY WARM LOW TEMP 64 ( 62 /2001 )
14TH NEW. DAILY WARM HIGH TEMP 103 ( 101 /2010 )
15TH NEW. DAILY WARM LOW TEMP 64 ( 63 /1901 )
15TH NEW. DAILY WARM HIGH TEMP 105 ( 101 /2020 )
16TH NEW. DAILY WARM LOW TEMP 65 ( 64 /2020 )
16TH NEW. DAILY WARM HIGH TEMP 105 ( 101 /1977 )
17TH NEW. DAILY WARM LOW TEMP 66 ( 62 /1933 )
25TH NEW. DAILY WARM LOW TEMP 62 ( 61 /2011 )
MIN TEMP OF 67 ON THE 15TH WAS THE WARMEST EVER RECORDED
IN AUGUST FOR AN OVERNIGHT MINIMUM AT EUGENE (PRIOR
RECORD WAS 66 DEG, SET IN 2021).
*** THE WARMEST AUGUST (AVG TEMP 72.5 DEG, +4.6 ABOVE NORMAL)
SEPTEMBER... NO NEW RECORDS SET.
OCTOBER...
6TH NEW. DAILY WARM HIGH TEMP 87 ( 86 /1952 )
NOVEMBER...
3RD TIED. DAILY WARM LOW TEMP 55 ( 55 /1965 )
DECEMBER...
4TH NEW. DAILY WARM LOW TEMP 55 ( 54 /1989 )
5TH NEW. DAILY WARM LOW TEMP 55 ( 50 /1897 )
5TH NEW. DAILY WARM HIGH TEMP 64 ( 60 /1944 )
===============================================================
2023 EUGENE MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS
THIS TABLE SHOWS WHERE EACH MONTH/YEAR RANKS IN EUGENE`S
CLIMATE RECORD (1892-2023). RANKINGS APPLY TO ALL OF THE
SAME MONTH: EX. WHERE JUNE 2023 COMPARES TO ALL OTHER JUNES.
JA FE MA AP MA JU JL AU SE OC NO DE 2023
AVG T 46 116 119 59 2 10 5 1 25 22 67 XX XX
PRECIP 113 112 60 17 127 126 98 65 50 62 110 XX XX
MAX T 41 89 113 91 3 6 2 3 35 38 72 XX XX
MIN T 50 125 118 21 2 51 22 1 20 26 64 XX XX
EUGENE`S RANGE IS 1 TO 132, WHERE 1 = WARMEST OR WETTEST
132 = DRIEST OR COLDEST
===============================================================
2023 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 48.4 35.0 41.7 +0.3 DEG 62 /12TH 21 /30TH
FEB 49.9 30.3 40.1 -3.2 DEG 64 / 9TH 20 /25TH
MAR 52.3 33.9 43.1 -3.8 DEG 63 /22ND 29 /16TH
APR 59.6 41.9 50.8 +0.1 DEG 87 /28TH 34 / 3RD
MAY 74.7 47.5 61.1 +5.0 DEG 94 /14TH 37 / 7TH
JUN 80.5 48.4 64.5 +3.6 DEG 93 /30TH 39 / 2ND
JUL 88.5 53.1 70.8 +3.0 DEG 100 /15TH 47 /31ST
AUG 87.9 57.1 72.5 +4.6 DEG 105 /16TH+ 45 /23RD
SEP 77.5 49.9 63.7 +0.8 DEG 94 /15TH 40 /21ST
OCT 65.6 44.8 55.2 +1.8 DEG 87 / 6TH 25 /29TH
NOV 52.6 38.8 45.7 +0.2 DEG 65 / 2ND 22 /28TH
DEC XX.X XX.X XX.X XX.X DEG XX /XXTH XX /XXTH
2023 XX.X XX.X XX.X XX.X DEG 105/AUG 16+ 20/FEB 25
NORMAL 64.3 41.9 53.1
DAYS WITH TEMPERATURES IN 2023 WHERE...
|------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
<=32 60+ 70+ 80+ 90+ 100+ <=20 <=32 60+ 70+
--------------------------------------------------------------
JAN 0 1 0 0 0 0 0 11 0 0
FEB 0 1 0 0 0 0 1 17 0 0
MAR 0 4 0 0 0 0 0 13 0 0
APR 0 12 5 2 0 0 0 0 0 0
MAY 0 30 19 12 1 0 0 0 0 0
JUN 0 30 27 17 4 0 0 0 0 0
JUL 0 31 31 30 13 1 0 0 0 0
AUG 0 31 29 27 12 4 0 0 10 0
SEP 0 30 24 13 1 0 0 0 1 0
OCT 0 24 9 3 0 0 0 4 0 0
NOV 0 6 0 0 0 0 0 6 0 0
DEC X X 0 0 0 0 X XX 0 0
2023 0 XXX 144 104 31 5 1 XX 11 0
NORMAL 2 201 128 66 15 1 2 51 2 0
FIRST/LAST OCCURRENCES OF... IN 2023 NORMAL
LAST 32 DEG OR COLDER IN SPRING 27 MAR (13 APR)
FIRST 70+ DEG OF THE YEAR 22 APR (30 MAR)
FIRST 80+ DEG OF THE YEAR 28 APR (10 MAY)
FIRST 90+ DEG OF THE YEAR 14 MAY (25 JUN)
LAST 90+ DEG OF THE YEAR 15 SEP ( 7 SEP)
LAST 80+ DEG OF THE YEAR 8 OCT (29 SEP)
LAST 70+ DEG OF THE YEAR 16 OCT (21 OCT)
FIRST 32 DEG OR COLDER OF AUTUMN 28 OCT (22 OCT)
==============================================================
2023 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 2.83 -3.22 20 10 0 0 0.55 JAN 3-4
FEB 1.98 -2.69 9 7 0 0 0.60 FEB 27-28
MAR 4.50 -0.14 22 15 2 0 0.90 MAR 12-13
APR 4.70 +1.38 20 16 2 1 1.04 APR 9-10
MAY 0.34 -2.12 5 1 0 0 0.13 MAY 8
JUN 0.14 -1.09 2 1 0 0 0.12 JUN 18
JUL 0.01 -0.31 1 0 0 0 0.01 JUL 25
AUG 0.26 -0.13 4 1 0 0 0.15 AUG 31
SEP 1.66 +0.27 8 4 1 0 0.91 SEP 23-25
OCT 2.75 -0.42 10 8 2 0 0.86 OCT 24-25
NOV 3.39 -2.59 17 10 2 0 1.04 NOV 3-4
DEC X.XX XX.XX XX XX X X 2.11 DEC 2-3
2023 XX.XX XX.XX XXX XX XX X 2.11 DEC 2-3
NORMAL 40.83 146 90 26 7
EUGENE WATER YEAR 2022-23 (1 OCT 2022 THROUGH 30 SEP 2023)
28.60 INCHES ( 12.23 INCHES XXXXX NORMAL )
TOTAL SNOWFALL FOR 2023... 2.2 INCHES (AVERAGE: 5.8")
============================================================
2022 EUGENE WIND AND PRESSURE DATA...
AVERAGE SPEED (MPH) STRONGEST WIND GUST
MONTH 2023 NORMAL DIRECTION SPEED DATE
----------------------------------------------------------
JAN 6.7 (6.8) SOUTH 40 MPH JAN 15
FEB 7.4 (7.1) SOUTH 38 MPH FEB 27
MAR 7.6 (7.4) SOUTHWEST 37 MPH MAR 7
APR 7.6 (7.1) NORTHWEST 42 MPH APR 3
MAY 6.0 (6.6) SOUTHWEST 28 MPH MAY 6
JUN 7.2 (7.0) NORTH 31 MPH JUN 4
JUL 6.5 (7.5) NORTH 29 MPH JUL 1
AUG 6.0 (7.1) NORTHWEST 28 MPH AUG 4
SEP 6.0 (6.8) NORTHEAST 34 MPH SEP 25
OCT 5.4 (6.4) SOUTHWEST 33 MPH OCT 25
NOV 5.1 (7.0) SOUTHEAST 33 MPH NOV 11
DEC X.X (7.1) XXXXXXXXX XX MPH DEC XX
2023 X.X (7.0) SOUTHWEST 53 MPH MAR 12
2023 BAROMETRIC PRESSURE EXTREMES...
HIGHEST 30.72 INCHES 25 JAN ( 1054 AM PST )
LOWEST 29.20 INCHES 14 DEC ( 254 PM PST )
==============================================================
2023 LOCAL RIVER EXTREMES
WILLAMETE RIVER (NEAR EWEB BUILDING, DOWNTOWN EUGENE)...
HIGHEST 15.7 FT 3 DEC (FLOOD STAGE IS 23.0 FT)
LOWEST 9.6 FT 21 AUG
WILLAMETTE (AT HARRISBURG)...
HIGHEST 12.1 FT 4 DEC (FLOOD STAGE IS 14.0 FT)
LOWEST 1.7 FT 23 AUG
MOHAWK RIVER (AT HILL RD, NORTH OF SPRINGFIELD)...
HIGHEST 14.5 FT 4 DEC (FLOOD STAGE IS 15.0 FT)
LOWEST 0.7 FT 17 SEP
=============================================================
EUGENE AIRPORT CLIMATE PERIOD OF RECORDS... 1892 TO 2023
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
$$