Climatological Report (Annual)
Issued by NWS Portland, OR

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000
CXUS56 KPQR 021858
CLAEUG

ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
1049 AM PST SUN JAN 2 2022

...EUGENE 2021 WEATHER IN REVIEW...
===============================================================

2021 NOTABLE RECORDS...         2021 NOTABLE WEATHER EVENTS...
   *** TIED WARMEST JUNE         *** MAJOR HEAT WAVE OF LATE JUNE
   *** 2ND WARMEST JULY          *** HEAT WAVE OF MID-AUGUST
   *** 3RD WARMEST AUGUST        *** WARMEST SUMMER ON RECORD
   *** 8TH WARMEST NOVEMBER      *** HEAVY RAIN MID-NOVEMBER
   *** MOST DAYS W/HIGHS 90+     *** HEAVY RAIN MID-DECEMBER
                                 *** SNOW IN LATE DECEMBER
   *** 3RD WARMEST YEAR (ONLY 2015 AND 1934 WERE WARMER)

MONTHLY WEATHER SUMMARIES...

JANUARY...2021 STARTED WET AND MILD. RAINFALL OF 5.66 INCHES WAS
SLIGHTLY BELOW NORMAL. THE MEAN TEMPERATURE OF 44.6 DEG WAS THE 9TH
WARMEST ON RECORD.


FEBRUARY...MILD AND WET WEATHER CONTINUED INTO EARLY FEBRUARY. THEN
SOME COLDER WEATHER THE 10TH TO 12TH, BUT ONLY A TRACE OF SNOW. MILD
WEATHER RETURNED TO THE REGION ON THE 13TH, AND LASTED THROUGH THE
END OF FEBRUARY. RAINFALL OF 3.91 INCHES WAS SLIGHTLY BELOW NORMAL.


MARCH...BEGAN THE MONTH WITH MILD AND DRY WEATHER WITH TEMPERATURES
IN THE 60S. THE REMAINDER OF THE MONTH WAS SOMEWHAT COOLER WITH
OCCASIONAL SHOWERS. RAINFALL OF 1.68 INCHES WAS TIED FOR THE 8TH
DRIEST ON RECORD.


APRIL...THIS WAS A WELCOME BREAK FROM NORMALLY WET AND COOLISH
APRILS, AS HIGH PRESSURE DOMINATED THE WEATHER PATTERN. THIS BLOCKED
INCOMING WEATHER FRONTS, ALLOWING FOR DRIER AND WARMER WEATHER. IN
FACT, THE TOTAL RAINFALL FOR THE MONTH OF 0.35 INCH WAS THE DRIEST
ON RECORD. AFTERNOON TEMPERATURES WERE OFTEN IN THE 60S AND 70S. THE
WARMEST DAYS WERE 17TH/18TH, WHEN TEMPERATURES REACHED INTO THE
LOWER 80S.


MAY...THE FIRST DAY OF MAY SAW MORE RAIN THAN THE ENTIRE MONTH OF
APRIL. BUT OVERALL, MAY WAS STILL RATHER DRY AND MILD WITH ABOUT
HALF THE RAIN THAT IS NORMAL. MID MONTH SAW A WARM STRETCH OF DAYS
(12TH TO 16TH), BUT THE WARMEST PERIOD CAME AT THE END OF THE MONTH
AS TEMPERATURES CLIMBED TO THE UPPER 80S.


JUNE...JUNE STARTED WARM AND DRY WITH HIGHS IN THE LOWER 90S ON THE
1ST AND 2ND. THEN, WEATHER RESEMBLED THAT MORE LIKE ANY OTHER JUNE,
WITH CLOUDS, RAIN, AND VARIABLE TEMPERATURES. HIGH PRESSURE THEN
BUILT OVER THE REGION, BRINGING DRY AND WARMER WEATHER. TEMPERATURES
ROSE INTO THE 90S BY THE 20TH, WITH 95 DEG ON THE 21ST. HIGH
PRESSURE WEAKEND A BIT, WITH TEMPERATURES BACK TO THE MID 80S. BUT,
THAT HIGH PRESSURE DOME PUSHED BACK OVER THE PACIFIC NW ON THE 25TH,
BRING VERY HOT WEATHER. TEMPERATURES ROSE TO 103 ON THE 26TH, THEN
TO A RECORD-BREAKING 111 ON THE 27TH. THIS WAS THE HOTTEST DAY EVER
RECORDED IN EUGENE (BACK TO 1890). THE ELDERLY AND VERY YOUNG, ALONG
WITH THOSE THAT HAD NO AIR CONDITIONING, SUFFERED DURING THIS HEAT
WAVE. HUNREDS SUFFERED FROM VARIOUS HEAT SICKNESSES AND NEEDED TO BE
HOSPITALIZED.


JULY...WARM AND DRY WEATHER CONTINUED, WITH ONLY 0.01 INCH OF RAIN.
THERE WERE 18 DAYS WITH HIGH TEMPERATURE OF AT LEAST 90 DEG, WITH
THE WARMEST BEING 99 DEG ON THE 29TH. JULY 2021 ENDED AS THE 2ND
WARMEST JULY ON RECORD.


AUGUST...WHILE NOT AS WARM AS JULY OR LATE JUNE, IT STILL FELT
RATHER WARM. ANOTHER ROUND OF HOT TEMPERATURES MID MONTH, WITH 102
ON THE 11TH AND 104 ON THE 12TH. AFTER THE HEAT WAVE ENDED ON THE
15TH, TEMPERATURES WERE MORE TYPICAL FOR AUGUST, WITH 70S AND 80S.
EVEN SO, IT WAS THE 3RD WARMEST AUGUST ON RECORD.



SEPTEMBER...WAS A MILD MONTH, WITH TEMPERATURES SLIGHTLY WARMER THAN
NORMAL. FIRST HALF OF THE MONTH WAS DRY BEFORE RAIN ARRIVED ON THE
17TH, WITH RATHER HEAVY RAIN ON THE 18TH. THE RAINFALL TOTAL OF 1.48
INCHES ON THE 18TH WAS THE 2ND WETTEST SEPTEMBER DAY ON RECORD. AS
SUMMER CLOSED ON THE 20TH, 2021 WOULD FINISH AS THE WARMEST SUMMER
ON RECORD, SURPASSING PRIOR WARMEST 2014.


OCTOBER...IT WAS AN OCTOBER THAT IS MORE EXPECTED, WITH COOL SWEATER
WEATHER AND SOME RAIN FROM TIME TO TIME. WHILE THERE WERE NOT BIG
RAIN EVENTS, THE MONTHLY RAINFALL OF 2.74 INCHES WAS SLIGHTLY BELOW
NORMAL.


NOVEMBER...RAINS CONTINUED THROUGH THE MONTH, ALONG WITH MILD
TEMPERATURES. ON THE 10TH AND 11TH, A RATHER SLOW MOVING ATMOSPHERIC
RIVER SHIFTED FROM SOUTHWARD ACROSS THE REGION.



DECEMBER...MILD WEATHER OF LATE NOVEMBER EXTENDED INTO EARLY DAYS OF
DECEMBER, WITH TEMPERATURES INTO THE MID 60S ON THE 1ST. BUT, RETURN
TO ONSHORE FLOW AND ARRIVING FRONT ON THE 4TH BROUGHT MORE REALISTIC
EARLY DECEMBER WEATHER, WITH RAIN AND TEMPERATURES IN THE 40S. HEAVY
RAIN FELL ON THE 19TH, AS A FRONT STALLED OVER THE AREA. COLDER
WEATHER SPREAD ACROSS THE REGION, WITH SNOW ON CHRISTMAS NIGHT INTO
THE 27TH. SNOWFALL WAS 8 TO 10 INCHES ACROSS THE EUGENE AREA. COOL,
SHOWERY WEATHER CONTINUED TO CLOSE OUT THE MONTH.



=============================================================
NEW RECORDS SET IN 2021       (PREVIOUS RECORD IN PARENTHESES)
               + INDICATES MOST RECENT OF MULTIPLE OCCURRENCES

JANUARY...
  12TH  NEW.  DAILY WARM LOW TEMP            52  (  51 /1991 )

APRIL...
  11TH  NEW.  DAILY COLD LOW TEMP            30  (  31 /1891 )
  16TH TIED.  DAILY WARM HIGH TEMP           80  (  80 /1897 )
  17TH  NEW.  DAILY WARM HIGH TEMP           83  (  80 /1939 )
  ****  APRIL 2021 WAS THE DRIEST APRIL ON RECORD WITH 0.35"
             (PRIOR RECORD DRIEST WAS 0.49" IN APR 1985).

JUNE...
  26TH  NEW.  DAILY WARM HIGH TEMP          103  (  98 /2015 )
  27TH  NEW.  DAILY WARM LOW TEMP            66  (  64 /2015 )
  27TH  NEW.  DAILY WARM HIGH TEMP          111  (  98 /2015 )
  28TH TIED.  DAILY WARM LOW TEMP            61  (  61 /2015 )
  ****  HIGH OF 111 IS HIGHEST TEMPERATURE EVER RECORDED AT
            EUGENE. PRIOR TO 2021, THE HIGHEST WAS 108 DEG
              RECORDED ON 9 AUG 1981.
  ****  JUNE 2021 TIED JUNE 2015 AS WARMEST JUNE ON RECORD,
              WITH AVERAGE TEMP OF 67.2 DEG.

JULY...
  31ST  NEW.  DAILY WARM LOW TEMP            66  (  59 /1974+)
   **** 2ND WARMEST JULY ON RECORD, WITH AVERAGE TEMP 71.4 DEG
            (RECORD WARMEST IS JUL 2015 WITH AVG TEMP 71.5 DEG)

AUGUST...
   2ND TIED.  DAILY WARM LOW TEMP            64  (  64 /2003 )
  11TH  NEW.  DAILY WARM LOW TEMP            64  (  61 /1990 )
  12TH TIED.  DAILY WARM LOW TEMP            66  (  66 /1992 )
  12TH  NEW.  DAILY WARM HIGH TEMP          104  ( 102 /1977 )
  13TH  NEW.  DAILY WARM LOW TEMP            66  (  62 /1992 )
  14TH TIED.  DAILY WARM LOW TEMP            62  (  62 /2008 )
   **** 3RD WARMEST AUG ON RECORD, WITH AVERAGE TEMP 70.8 DEG
            (RECORD WARMEST IS AUG 1967 WITH AVG TEMP 72.0 DEG)

SEPTEMBER...
  26TH TIED.  DAILY WARM LOW TEMP            57  (  57 /2010+)
  18TH  NEW.  DAILY RAINFALL               1.48" (1.14"/2020 )

NOVEMBER...
  11TH  TIED. DAILY WARM LOW TEMP            53  (  53 /2006+)
  12TH  TIED. DAILY WARM LOW TEMP            57  (  57 /1999+)


DECEMBER...
  26TH  NEW.  DAILY SNOWFALL                8.2" ( 0.2"/1954 )
        8.2 INCHES ON 26TH IS MOST SNOW ON ANY DECEMBER DAY
            (PRIOR RECORD WAS 7.0 INCHES ON 6 DEC 2013)

FOR THE YEAR...
    MOST DAYS WITH HIGH TEMPERATURE 90+ DEG...       42 DAYS
              (PRIOR RECORD 2014 WITH 36 DAYS)
    MOST DAYS WITH LOW TEMPERATURE 60+ DEG...        15 DAYS
              (PRIOR RECORD 1914 WITH 13 DAYS)
    WARMEST SUMMER ON RECORD...SURPASSING 2014

    3RD WARMEST YEAR ON RECORD...TIES 1992 AS 3RD WARMEST.
         (ONLY 2015 AND 1934 WERE WARMER)

===============================================================
2021 EUGENE MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS

THIS SHOWS WHERE A MONTH/YEAR RANKS IN PERIOD OF RECORD
(1892 TO 2021). RANKINGS ONLY APPLY TO ALL OF THE SAME MONTH,
IN OTHER WORDS, WHERE JAN 2021 COMPARES TO ALL OTHER JANUARYS.

RANKINGS 1 TO 131, WHERE 1 IS THE RECORD WARMEST OR WETTEST,
                   AND 131 IS THE RECORD DRIEST OR COLDEST.

       JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC  2021
AVG T   11  47  76  30  35   1   2   3  17  60   9  57     3
PRECIP  68  80 123 131  93  45  97 107  10  65  78  20    89

MAX T    9  83  51   5  18   2   1   7  22  90  11  70     5
MIN T   15  32 110 114  78   4  12   2  26  34  12  40     9

===============================================================
2021 EUGENE 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     50.9  38.2   44.6   +3.9 DEG     61 /13TH    26 /23RD
FEB     50.0  36.9   43.4   +0.5 DEG     61 /28TH    29 /10TH
MAR     56.2  34.6   45.4   -1.3 DEG     66 /31ST    28 /16TH
APR     67.6  37.1   52.4   +2.2 DEG     83 /17TH    28 / 5TH
MAY     71.0  43.0   57.0   +0.9 DEG     88 /31ST    34 / 8TH
JUN     82.4  52.0   67.2   +6.3 DEG    111 /27TH    37 / 9TH
JUL     88.9  53.9   71.4   +3.6 DEG     99 /29TH    48 / 9TH
AUG     86.5  55.2   70.8   +2.9 DEG    104 /12TH    45 /24TH
SEP     79.1  49.4   64.2   +1.3 DEG     91 / 8TH    44 /17TH+
OCT     62.5  44.3   53.4   +0.0 DEG     73 / 3RD    32 /12TH
NOV     56.4  41.9   49.2   +3.7 DEG     66 /14TH+   28 /22ND
DEC     46.6  36.5   41.6   +1.0 DEG     66 / 1ST    22 /27TH

2021    66.6  43.6   55.1   +1.9 DEG    111/JUN 27  22/DEC 27
NORMAL  64.3  42.0   53.2

DAYS WITH TEMPERATURES IN 2021 WHERE...
       |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
       <=32  60+  70+  80+  90+ 100+  <=20  <=32   60+   70+
--------------------------------------------------------------
JAN      0    2    0    0    0    0      0     7    0     0
FEB      0    1    0    0    0    0      0     7    0     0
MAR      0    9    0    0    0    0      0    10    0     0
APR      0   23   12    4    0    0      0     4    0     0
MAY      0   30   17    6    0    0      0     0    0     0
JUN      0   30   25   19    9    2      0     0    6     0
JUL      0   31   31   29   18    0      0     0    2     0
AUG      0   31   31   22   12    2      0     0    7     0
SEP      0   30   27   15    3    0      0     0    0     0
OCT      0   21    4    0    0    0      0     1    0     0
NOV      0   10    0    0    0    0      0     3    0     0
DEC      0    1    0    0    0    0      0     8    0     0

2021     0  219  147   95   42    4      0    40   15     0
NORMAL   2  195  123   58   14    1      3    51    2     0

FIRST/LAST OCCURRENCES OF...        IN 2021       NORMAL
  LAST 32 DEG OR COLDER IN SPRING    11 APR      (20 APR)
  FIRST 70+ DEG OF THE YEAR           1 APR      (30 MAR)
  FIRST 80+ DEG OF THE YEAR          16 APR      (15 MAY)
  FIRST 90+ DEG OF THE YEAR           1 JUN      (25 JUN)

  LAST 90+ DEG OF THE YEAR            8 SEP      (11 SEP)
  LAST 80+ DEG OF THE YEAR           25 SEP      (29 SEP)
  LAST 70+ DEG OF THE YEAR           28 OCT      (21 OCT)
  FIRST 32 DEG OR COLDER IN FALL     12 OCT      (20 OCT)

==============================================================
2021 EUGENE 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     5.66    -1.21      21   14    3    1    2.53 JAN 11-12
FEB     3.91    -1.52      17   10    2    0    0.98 FEB 12-13
MAR     1.68    -3.31      16    5    0    0    0.38 MAR  5
APR     0.35    -2.98       7    1    0    0    0.20 APR 23-24
MAY     1.28    -1.18      10    4    0    0    0.49 MAY  1
JUN     1.60    +0.37       6    4    2    0    1.26 JUN 12-13
JUL     0.01    -0.31       1    0    0    0    0.01 JUL  7
AUG    TRACE    -0.39       0    0    0    0       T AUG  1
SEP     2.55    +1.16       6    4    1    1    1.48 SEP 18
OCT     2.74    -0.43      16    9    1    0    0.90 OCT 21-22
NOV     5.19    -0.79      19   12    4    1    1.61 NOV 10-11
DEC    11.13    +3.92      23   15    9    5    2.42 DEC 18-19

  2021  36.10   -4.73     142   78   22    8    2.53 JAN 11-12
NORMAL  40.83             144   93   30   10

EUGENE WATER YEAR 2019-20 (1 OCT 2020 THROUGH 30 SEP 2021)
      30.34 INCHES      10.49 INCHES BELOW NORMAL

TOTAL SNOWFALL FOR 2021...    10.1"    (NORMAL: 6.0")

============================================================
2021 EUGENE AIRPORT WIND AND PRESSURE DATA...

      AVERAGE SPEED (MPH)    STRONGEST WIND GUST
MONTH   2021   NORMAL      DIRECTION   SPEED   DATE
----------------------------------------------------------
JAN      7.1    (6.8)       WEST        36 MPH  JAN 13
FEB      7.4    (7.1)       SOUTH       42 MPH  FEB  2
MAR      6.4    (7.4)       SOUTH       38 MPH  MAR  8
APR      7.2    (7.1)       NORTH       36 MPH  APR 13
MAY      6.6    (6.6)       NORTH       29 MPH  MAY 28+
JUN      7.1    (7.0)       SOUTHWEST   36 MPH  JUN 28
JUL      7.0    (7.5)       NORTH       37 MPH  JUL 13
AUG      7.5    (7.1)       NORTH       32 MPH  AUG 27
SEP      7.1    (6.8)       SOUTHWEST   30 MPH  SEP 26
OCT      6.6    (6.4)       SOUTH       39 MPH  OCT 24
NOV      6.4    (7.0)       WEST        37 MPH  NOV  6
DEC      8.2    (7.1)       SOUTH       37 MPH  DEC 11

2021     6.9    (7.0)       SOUTH       42 MPH  FEB  2

2021 BAROMETRIC PRESSURE EXTREMES...
   HIGHEST     30.59 INCHES     24 FEB ( 1106 AM PST )
   LOWEST       29.06 INCHES     24 OCT ( 0701 AM PST )

==============================================================
2021 LOCAL RIVER EXTREMES

WILLAMETE RIVER (NEAR EWEB BUILDING, DOWNTOWN EUGENE)...
   HIGHEST   14.4 FT     4 JAN     (FLOOD STAGE IS 23.0 FT)
   LOWEST     9.5 FT    24 AUG

WILLAMETE RIVER (AT HARRISBURG)...
   HIGHEST    9.7 FT     5 JAN     (FLOOD STAGE IS 14.0 FT)
   LOWEST     1.6 FT    20 AUG

MOHAWK RIVER (AT HILL RD, NORTH OF SPRINGFIELD)...
   HIGHEST   10.6 FT    13 JAN     (FLOOD STAGE IS 15.0 FT)
   LOWEST     0.7 FT    10 SEP

=============================================================
EUGENE AIRPORT CLIMATE PERIOD OF RECORDS...   1892 TO 2021
EUGENE AIRPORT CLIMATE NORMALS...             1991 TO 2020
=============================================================

DATA COMPILED BY ROCKEY AND HARTSOCK

NATIONAL WEATHER SERVICE PORTLAND OREGON
    ONLINE AT:     WEATHER.GOV/PORTLAND

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