National Weather Service United States Department of Commerce

Additional Heavy Rains for Texas expanding into the Gulf Coast

Tropical Moisture streaming ahead of major hurricane Willa off the western Mexico coastline is interacting with a frontal boundary in the Gulf Coast. Locally heavy rain is possible in Texas, which could exacerbate ongoing flooding. Rain will shift farther east into the western and central Gulf Coast. Read More >

ANNUAL CLIMATE REPORT
 NATIONAL WEATHER SERVICE PORTLAND OR
 150 PM PST SUN DEC 31 2017
 
 ...PORTLAND 2017 WEATHER IN REVIEW...
  
 ================================================================
 2017 MONTHLY WEATHER RECAPS...
 
 JANUARY..IT WAS A CHILLY JANUARY, WITH HIGHS THROUGH THE 15TH
      OFTEN STRUGGLING TO REACH 32 DEG THANKS TO MODERATE EAST
      WINDS. SNOW FELL ON FIRST DAY OF YEAR, WITH 4 TO 7 INCHES
      FALLING IN ACROSS FAR SOUTHEAST PORTLAND, OREGON CITY, 
      AND AREAS EASTWARD. BUT LITTLE IF ANY SNOW FELL ELSEWHERE.  
      A STRONGER STORM ARRIVED ON THE 7TH THROUGH THE 8TH, WITH
      SNOW AND FREEZING RAIN. FROM ONE TO 4 INCHES OF SNOW FELL, 
      AND 0.10 TO 0.75 INCH OF ICE ACCUMULATION FROM FREEZING
      RAIN. MANY ABANDONED VEHICLES ON HIGHWAYS, AND OVER 260 
      FLIGHTS CANCELED AT PORTLAND INTERNATIONAL AIRPORT. MORE 
      LIGHT FREEZING RAIN FELL LATER ON THE 8TH THROUGH THE 9TH.
 
      ANOTHER FRONT BROUGHT THUNDERSTORMS THAT PRODUCED HEAVY
      SNOW DURING THE EVENING OF THE 10TH INTO THE 11TH 
      MANY AREAS FROM HILLSBORO ACROSS EAST PORTLAND AND NORTH
      INTO CLARK COUNTY PICKED UP 8 TO 13 INCHES OF SNOW. LOCAL
      ACCUMULATIONS UP TO 16 INCHES WEST HILLS ACROSS NORTH 
      PORTLAND INTO VANCOUVER. THE HEAVY ACCUMULATIONS BROUGHT
      DOWN POWER LINES AND CLOSED ROADS. A ROOF ON A HILLSBORO
      WAREHOUSE COLLAPSED FROM WEIGHT OF THE WET HEAVY SNOW. 
 
      A SIGNIFICANT ICE STORM STRUCK THE REGION ON 16TH AND 17TH.
      ACCUMULATIONS OF 0.25 TO 0.50 WERE COMMON, WITH 0.50 TO
      1.00 INCH OF ICE COMMON FROM I5 EASTWARD, ABOUT 10 MILES
      EITHER SIDE OF THE COLUMBIA RIVER. AGAIN, POWER WAS OUT
      FOR MANY PEOPLE. AREAS INSIDE THE COLUMBIA RIVER GORGE
      RECEIVED UP TO 2 INCHES OF ICE, WITH MAJOR TREE DAMAGE.
      INTERSTATE 84 WAS CLOSED FOR DAYS DUE TO ICE AND DOWNED
      TREES. OVER 180 FLIGHTS WERE CANCELED AT PORTLAND INTL. 
 
      IT WAS NOT UNTIL THE 18TH/19TH THAT TEMPERATURES RETURNED
      TO MORE NORMAL. FORTUNATELY, WEATHER WAS MUCH MORE QUIET.
 
 FEBRUARY...
      STRONG EAST WINDS WERE GUSTED 50 TO 55 MPH FROM THE 1ST
      TO 2ND, WITH COLD TEMPERATURES IN PLACE WHEN RAIN ARRIVED
      ON THE 3RD. THIS RESULTED IN ROUND OF ICY ROADS, WITH 0.10
      TO 0.33 INCH OF ICE ACROSS THE METRO. MOST OF THE FREEZING
      RAIN FELL IN THE EARLY HOURS OF THE 3RD. THERE WERE MANY
      TRAFFIC ACCIDENTS, INCLUDING A 50-CAR PILEUP ON I-5 NEAR
      CAPITOL HILL. WARM AIR RETURNED ON THE 4TH AND 5TH, BUT 
      ALSO CAME A LOT OF RAIN. RAIN ON THE 5TH TOTALED 2.19"
      MAKING THE WETTEST SINGLE DAY IN FEB EVER, SURPASSING THE
      PREVIOUS RECORD OF 2.16 INCHES SET ON 6 FEB 1996. 
 
      MILD WEATHER RETURNED AFTER THE 8TH, WITH MORE TYPICAL 
      FEBRUARY WEATHER. HEAVY RAIN FELL ON THE 15TH AND 16TH,
      WITH 2.50 TO 3.5O INCHES IN MANY AREAS. THIS CAUSED SOME
      STREET/LOW LYING AREA FLOODING. FEBRUARY FINISHED WITH 
      10.36 INCHES OF RAIN, SURPASSING FEB 1996 (10.03 INCHES)
      AS THE WETTEST FEBRUARY ON RECORD FOR PORTLAND AIRPORT.
 
 MARCH...MILD MONTH, BUT FAIRLY WET, WITH ABOUT TWICE THE 
      NORMAL RAINFALL. MARCH 2017 TOTAL RAINFALL WAS ABOUT 
      A HALF INCH SHY OF THE RECORD, FINISHING AS THE 4TH 
      WETTEST MARCH. DID HAVE A FEW DAYS WITH THUNDERSTORMS
      FROM THE 21ST THROUGH THE 24TH.  A THUNDERSTORM ON 
      THE 24TH PRODUCED AN EF0 TORNADO IN THE COVINGTON AND
      ORCHARDS AREA OF VANCOUVER. WINDS WITH THE TORNADO WERE
      LIKELY IN THE 65 TO 85 MPH. 
 
 APRIL...LIKE MARCH, APRIL WAS GENERALLY UNEVENTFUL, WITH NEAR
      NORMAL TEMPERATURES AND RAINFALL. HOWEVER, A POWERFUL LOW
      PRESSURE MOVED UP THE OREGON/WASHINGTON COAST ON THE 7TH. 
      THIS BROUGHT GUSTY SOUTHERLY WINDS TO THE REGION, WITH 
      GUSTS OF 55 TO 70 MPH ACROSS THE METRO. PEAK WINDS HIT 
      57 MPH AT PORTLAND AIPORT AND 61 MPH AT HILLSBORO AIRPORT, 
      WHILE A 76 MPH GUST WAS RECORDED AT THE OMSI BUILDING IN 
      DOWNTOWN PORTLAND. THESE WINDS WINDS CAPSIZED A BOAT ON
      THE COLUMBIA RIVER NEAR MULTNOMAH FALL, BUT THE FOUR ON
      BOARD WERE RESCUED. MANY HOMES LOST POWER. 
 
 MAY...A RATHER PLENTY MONTH. STARTED ON WETTER SIDE, BUT ONLY 
      A TRACE OF RAIN FELL FROM THE 18TH TO THE 31ST. A WARM
      SPELL AROUND THE 21ST TO 28TH PEAKED WITH HIGH OF 91 ON
      THE 22ND. THUNDERSTORMS OCCURRED ON 4TH, 13TH, AND 16TH.
      THE STORMS ON THE 4TH WERE BIT STRONG, PRODUCING STRONG
      GUSTY WINDS, HEAVY RAIN AND HAIL. ONE-INCH DIAMETER HAIL 
      WAS REPORTED WITH A STORM NEAR VERNONIA, AND CARSON, WA.
 
 JUNE...ANOTHER QUIET MONTH, FOR THE MOST PART. TEMPERATURES 
      GOT A BIT WARM LATER IN JUNE, WITH 3-DAY STRETCH OF 90 
      DEG OR WARMER. HOTTEST DAY WAS THE 25TH, WITH 101 DEG.
 
 JULY...AND JUST LIKE THAT, THE RAIN WAS GONE. ONLY A TRACE OF
      RAIN WAS RECORDED FOR THE WHOLE MONTH, AND THAT FELL ON
      THE 20TH. WITH NOT MUCH RAIN OR CLOUDS, TEMPERATURES WERE
      OFTEN IN THE 80S AND 90S. 
     
 AUGUST...AUGUST WAS MUCH LIKE JULY, WITH NOT MUCH IN WAY OF
      RAINFALL AND PLENTY OF WARM DAYS. WARMEST STRETCH OF 
      DAYS STARTED ON 29TH OF JULY AND ENDED ON THE 11TH OF
      AUGUST. MANY OF THOSE DAYS WERE IN THE 90S, WITH WARMEST
      DAYS BEING THE 2ND (103 DEG) AND THE 3RD (105 DEG). 
      2017 ALSO SAW A STRETCH OF 57 DAY DAYS (STARTING 17 JUN)
      AND ENDING ON 13 AUG. THIS IS THE 3RD LONGEST STRETCH 
      OF DRY DAYS, WITH THE MOST BEING 71 DAYS BACK IN 1967.
      
      SMOKE WAS A COMMON VISITOR IN AUGUST, LOFTING OVERHEAD.
      MAIN SOURCE FOR THE SMOKE WAS FROM FIRES OVER THE 
      CASCADES AND SOUTHWESTERN OREGON, AS WELL AS NORTHERN 
      CALIFORNIA. 
 
      AUGUST 2017 HAD 27 DAYS WITH HIGHS OF AT LEAST 80 DEG. 
      THIS MAKES A NEW RECORD FOR AUGUST, BREAKING PREVIOUS 
      RECORD OF 26 DAYS SET IN AUG 2016. THE 11 DAYS OF 90+
      DEG DAYS WAS THE MOST SEEN FOR ANY AUGUST SINCE 1986,
      BUT DID NOT BREAK THE RECORD MOST (RECORD 13 IN 1967).
 
      AUGUST 2017 FINISHED AS THE WARMEST AUGUST ON RECORD, 
      WITH AVERAGE TEMPERATURE OF 73.6 DEG. PREVIOUS RECORD
      WAS 2014 (73.1 DEG). 
 
 SEPTEMBER...WARM TEMPERATURES CONTINUED INTO SEPTEMBER, WITH
      TEMPERATURES ABOVE 90 DEG FOR FIRST 5 DAYS OF THE MONTH.
      SMOKE FROM WILDFIRES AROUND THE PAC NW DRIFTED OVER THE
      REGION FROM TIME TO TIME, BUT WORST WAS ON 4TH T0 11TH,
      AND AGAIN 14TH TO 17TH. THIS WAS DUE TO EAST WINDS 
      BLOWING SMOKE FROM THE EAGLE CREEK FIRE WESTWARD ACROSS
      THE PORTLAND/VANCOUVER METRO AREA. 
 
      FIRST STRONG FRONT SINCE EARLY JUNE PUSH ACROSS THE AREA
      ON THE 17TH, USERING IN MUCH COOLER AIR WITH HIGHS IN THE 
      60S. SHOWERY AND COOL WEATHER PERSISTED THROUGH THE 21ST.
      A STRONG SHOWER ON THE 19TH PRODUCED FUNNEL CLOUDS NEAR
      AURORA AND MOLALLA. 
 
 OCTOBER...IT WAS A GREAT AUTUMN MONTH, WITH CRISPY COOL 
      MORNINGS AND MILD AFTERNOONS. TYPICALLY, THE TRANSITION
      FROM WARM LATE SUMMER TO CLASSIC COOLER FALL PATTERN 
      OFTEN OCCURS AROUND THE 10TH OF OCTOBER. THIS YEAR WAS 
      NOT MUCH DIFFERENT, WITH SHOWERS AND HIGHS IN THE 50S 
      ON 10TH. COOL SHOWERY WEATHER LASTED THROUGH THE 13TH.
 
      THUNDERSTORMS ON THE 12TH PRODUCED A WEAK TORNADO IN 
      SALMON CREEK AREA OF VANCOUVER, WITH MINOR DAMAGE. THAT
      SAME DAY, ANOTHER THUNDERSTORM PRODUCED A WEAK TORNADO 
      NEAR AURORA. THE TORNADO FLIPPED A COUPLE OF AIRPLANES
      AT AURORA STATE AIRPORT, AND DID DAMAGE A NEARBY PLANT
      NURSERY. BOTH TORNADOES WERE RATED EF0, WHICH MEANS 
      WINDS WERE LIKELY 65 TO 85 MPH. 
 
      STRONGER FRONTS PUSHED ACROSS REGION FROM 18TH TO 22ND,
      BRINGING FAIRLY HEAVY SHOT OF RAINFALL. HEAVIEST FELL 
      ON THE 21ST, WITH 2.13 INCHES OF RAIN AT THE AIRPORT.
 
 NOVEMBER...RATHER UNEVENTFUL NOVEMBER, WITH NEAR NORMAL
      TEMPERATURES AND PRECIPITATION. 
 
 DECEMBER...AFTER A FEW WET DAYS TO START THE MONTH, DRY AND
      SUNNY WEATHER DOMINATED FROM THE 4TH THROUGH THE 15TH 
      WITH MODERATE EAST WINDS AT TIMES. BUT, RAIN RETURNED 
      ON THE 16TH, WITH RAIN AT TIMES TO CLOSE THE MONTH. 
      ROUND OF OFFSHORE WINDS BROUGHT COLDER ARCTIC AIR FROM
      THE COLUMBIA BASIN WESTWARD THROUGH THE COLUMBIA GORGE
      AND INTO THE METRO. WEAK FRONT OVER THE REGION BROUGHT 
      SOME SPOTTY LIGHT SNOW ON MORNING OF THE 23RD.
 
      MOISTURE ON THE 24TH BROUGHT A MIX OF SLEET AND SNOW 
      FOR THE AFTERNOON INTO THE EVENING, WITH MOST AREAS 
      GETTING ABOUT AN INCH OF SNOW. FREEZING DRIZZLE ROUNDED
      OUT REST OF THE NIGHT INTO THE 25TH. IT WAS ONLY THE 
      2ND TIME PORTLAND HAD SNOW ON THE GROUND ON CHRISTMAS
      MORNING SINCE 1940 (OTHER TIME WAS 2008), AND ONLY 
      THE 6TH TIME SINCE 1884. 
 
      MILDER PACIFIC AIR RETURNED ON THE 28TH, ALONG WITH 
      GOOD SHOT OF RAIN. RAINFALL TOTALS AROUND THE METRO
      WERE 1.25 TO 1.75 INCHES, ENOUGH TO CREATE MINOR 
      FLOODING IN AREAS WITH POOR DRAINAGE. 
      
 ==============================================================
 NEW RECORDS SET IN 2017       (PREVIOUS RECORD IN PARENTHESES)
               + INDICATES MOST RECENT OF MULTIPLE OCCURRENCES
 
 JANUARY...
    5TH   NEW.  DAILY LOW TEMP                17  (   19 /1982+)
   11TH   NEW.  DAILY LOW TEMP                11  (   16 /1974)
   15TH   TIED. DAILY LOW TEMP                19  (   19 /1947)
   18TH   TIED. DAILY MAX PRECIPITATION     1.06" ( 1.06"/1974)
     
 FEBRUARY...
    5TH   NEW.  DAILY MAX PRECIPITATION     2.19" ( 1.54"/1946)
   16TH   NEW.  DAILY MAX PRECIPITATION     1.70" ( 1.42"/1970)
    FEB   NEW.  WETTEST DAY EVER IN FEB     2.19" ( 2.16"/1996)
    FEB   NEW.  WETTEST FEB EVER           10.36" (10.03"/1996)
 
 MARCH... NO NEW RECORDS SET. 
 
 APRIL...
   24TH   NEW.  DAILY MAX PRECIPITATION     1.02" ( 0.54"/1970)
    APR   4TH WETTEST APRIL
 
 MAY...   NO NEW RECORDS SET. 
 
 JUNE...
   24TH   NEW.  DAILY HIGH TEMP               98  (   96 /1992)
   25TH   TIED. DAILY HIGH TEMP              101  (  101 /2006)
 
 JULY..   NO NEW RECORDS SET. 
    
 AUGUST...
    2ND   NEW.  DAILY HIGH TEMP              103  (   96 /1986)
    3RD   NEW.  DAILY HIGH TEMP              105  (   99 /1952)
    AUG   NEW.  MOST DAYS WITH 80+ DEG     27 DAYS(   26 /2016)
    AUG   NEW.  WARMEST AUG (AVG TEMP)      73.6  ( 73.1 /2014)
 
 SEPTEMBER...NO NEW RECORDS SET. 
    3RD   NEW.  DAILY HIGH TEMP               95  (   94 /2003) 
 
 OCTOBER...
   21ST   NEW.  DAILY PRECIPITATION         2.13" ( 1.10"/1951)
  
 NOVEMBER...
   22ND   NEW.  DAILY HIGH TEMP               62  (   59 /2011+)
   23RD   TIED. DAILY HIGH TEMP               63  (   63 /1959)
 
 DECEMBER... NO NEW RECORDS SET. 
  
 
 =============================================================
 2017 PORTLAND MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS 
  
 THIS SHOWS WHERE MONTH/YEAR RANKS IN PORTLANDS WEATHER RECORD,
 1940 TO 2017. RANKINGS ONLY APPLIES TO ALL OF THE SAME MONTH,
 OR IN OTHER WORDS, WHERE JAN 2017 COMPARES TO ALL OTHER JAN.
 
 RANKINGS ARE 1 TO 78...WHERE 1 IS THE WARMEST OR WETTEST
                AND 78 IS THE DRIEST OR COLDEST ON RECORD.
 
         JA  FE  MA  AP  MA  JU  JL  AU  SE  OC  NO  DE  2017
 AVG T   71  65  32  51  19  16  22   1  10  41  29  55    31
 PRECIP  51   1   4   6  43  49  77  66  19  19  27  64    10
 
 MAX T   72  61  46  59  21  23  17   2  23  26  39  55    31
 MIN T   71  55  11  33  21   9  31   6   9  52  18  56    30
                  
 ============================================================
 2017 PORTLAND 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     39.0  28.0   33.5   -7.9 DEG     52 /19TH    11 /13TH
 FEB     46.8  34.8   40.8   -3.0 DEG     59 / 9TH    29 /13TH
 MAR     54.2  41.1   47.6   -0.6 DEG     61 /12TH    32 /19TH
 APR     58.7  42.7   50.7   -1.6 DEG     69 /21ST    35 /11TH+
 MAY     70.2  49.3   59.8   +1.5 DEG     91 /22ND    41 / 6TH
 JUN     75.4  55.3   65.4   +1.8 DEG    101 /25TH    48 / 5TH
 JUL     82.7  57.3   70.0   +0.8 DEG     91 /30TH    54 /11TH+
 AUG     87.1  60.2   73.6   +4.1 DEG    105 / 3RD    52 /14TH
 SEP     77.5  55.6   66.6   +2.1 DEG     98 / 2ND    46 /24TH
 OCT     64.2  44.4   54.3   -0.6 DEG     74 / 5TH    35 /31ST 
 NOV     52.6  42.1   47.4   +0.8 DEG     63 /23RD    35 /19TH 
 DEC     45.3  34.2   39.8   -0.6 DEG     56 /29TH    23 /26TH 
 
  2017   62.9  45.5   54.2   -0.3 DEG   105 /AUG 3   11 /JAN 13
 NORMAL  63.2  45.7   54.5                         
                                             
 
 DAYS IN 2017 WITH TEMPERATURE OF...
        |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
        <=32  60+  70+  80+  90+ 100+  <=20  <=32   60+   70+    
 --------------------------------------------------------------
 JAN      6    0    0    0    0    0      6    21    0     0      
 FEB      0    0    0    0    0    0      0     9    0     0  
 MAR      0    2    0    0    0    0      0     1    0     0  
 APR      0   13    0    0    0    0      0     0    0     0  
 MAY      0   26   17    8    1    0      0     0    0     0
 JUN      0   30   20    8    3    1      0     0    3     0     
 JUL      0   31   31   22    3    0      0     0    5     0  
 AUG      0   31   31   27   11    2      0     0   19     0  
 SEP      0   30   21   14    6    0      0     0    8     0  
 OCT      0   22    8    0    0    0      0     0    0     0
 NOV      0    2    0    0    0    0      0     0    0     0    
 DEC      0    0    0    0    0    0      0    14    0     0  
 
 (THROUGH 30 NOV)
   2017   6  187  128   79   24    3      1    45   35     0
 NORMAL   2  197  120   54   12    1      2    30   21     0
 
 FIRST/LAST OCCURRENCES OF...        IN 2017         NORMAL
   LAST 32 DEG OR COLDER IN SPRING    MAR 19        (MAR 19)
   FIRST 70+ DEG OF THE YEAR          MAY  3        (MAR 30)
   FIRST 80+ DEG OF THE YEAR          MAY  3        (MAY 10)
   FIRST 90+ DEG OF THE YEAR          MAY 22        (JUN 16)
 
   LAST 90+ DEG OF THE YEAR           SEP 11        (SEP  8)
   LAST 80+ DEG OF THE YEAR           SEP 28        (SEP 29)
   LAST 70+ DEG OF THE YEAR           OCT 28        (OCT 18)
   FIRST 32 DEG OR COLDER IN FALL     DEC  9        (NOV 15)
 
 ==============================================================
 2017 PORTLAND 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     4.13    -0.75      14    8    4    1    1.42 JAN 17-18
 FEB    10.36    +6.70      20   12    9    3    2.19 FEB  5
 MAR     7.26    +3.58      23   18    6    0    1.08 MAR 23-24
 APR     4.51     1.78      24   12    2    1    1.11 APR 23-24
 MAY     1.92    -0.55      11    8    1    0    0.59 MAY 12-13
 JUN     1.08    -0.62       8    3    0    0    0.47 JUN 15
 JUL        T    -0.65       0    0    0    0   TRACE JUL 20
 AUG     0.06    -0.61       1    0    0    0    0.06 AUG 13
 SEP     2.38    +0.91       8    5    1    1    1.36 SEP 19-20
 OCT     4.57    +1.57      14    6    3    1    2.45 OCT 21-22
 NOV     6.44    +0.81      22   19    4    0    0.92 NOV 20 
 DEC     3.09    -2.40      15    8    3    0    0.50 DEC 19
 
   2017  45.80   +9.77     160   99   33    7    2.45 OCT 21-22
 NORMAL  36.03             155   91   19    4    
 
 TOTAL SNOWFALL...         9.4 INCHES      (NORMAL 4.3 INCHES)         
 
 PORTLAND WATER YEAR 2016-17 (1 OCT 2015 THROUGH 30 SEP 2016)
       51.45 INCHES       15.42 INCHES ABOVE NORMAL
 
 ============================================================
 2017 PORTLAND AIRPORT WIND AND PRESSURE DATA...
 
        AVERAGE SPEED (MPH)    STRONGEST WIND GUST
     2017 (NORMAL)       DIRECTION   SPEED   DATE
 -------------------------------------------------------------
 JAN     10.9    9.3         EAST        48 MPH  JAN  4
 FEB      9.4    8.7         EAST        51 MPH  FEB  2
 MAR      8.9    7.7         SOUTHWEST   40 MPH  MAR 15
 APR      8.2    7.1         SOUTHWEST   51 MPH  APR  7
 MAY      6.3    6.7         NORTHWEST   39 MPH  MAY 16
 JUN      6.7    7.0         SOUTH       33 MPH  JUN 10
 JUL      7.2    7.2         NORTHWEST   28 MPH  JUL 31
 AUG      5.8    6.8         NORTHWEST   26 MPH  AUG 25
 SEP      5.2    6.2         SOUTHWEST   30 MPH  SEP 17
 OCT      5.9    6.3         EAST        38 MPH  OCT 30
 NOV      9.3    8.0         SOUTH       41 MPH  NOV 24
 DEC      8.6    9.3 EAST        41 MPH  DEC  6
 
 2017     7.6    7.5EAST        51 MPH  FEB 2
                             SOUTHWEST  51 MPH  APR 7
 
 HIGHEST PRESSURE IN 2017...30.69 INCHES    JAN 27
 LOWEST PRESSURE IN 2017...29.10 INCHES    JAN 20                                        
 
 ===============================================================
 PORTLAND AIRPORT CLIMATE PERIOD OF RECORDS... OCT 1940 TO 2017
 PORTLAND AIRPORT CLIMATE NORMALS BASED ON...  1981 TO 2010
 ===============================================================
 
 DATA COMPILED BY ROCKEY
 NATIONAL WEATHER SERVICE PORTLAND OREGON
 
 ONLINE AT:     WEATHER.GOV/PORTLAND