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956
CXUS56 KPQR 012321
CLASLE

ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
320 PM PST WED JAN 1 2014

...SALEM 2013 WEATHER IN REVIEW...

================================================================
MONTHLY WEATHER RECAPS...

JANUARY...2012 ENDED ON A RATHER WET NOTE...BUT 2013 WAS MUCH
    DRIER. IN FACT...JANUARY 2013 WAS THE 8TH DRIEST ON RECORD
    WITH ONLY 1.63 INCHES OF RAIN...ABOUT ONE THIRD OF WHAT
    SHOULD OCCUR IN JANUARY. IF IT WAS NOT RAINING IT WAS LIKELY
    FOGGY. WITH TEMPERATURES AT OR JUST BELOW FREEZING AT NIGHT
    FREEZING FOG CREATED ICY ROADWAYS BETWEEN THE 12TH AND 23RD.
    EVEN A FEW FLURRIES FELL...BUT NO ACCUMULATION WERE NOTED.

FEBRUARY...PLENTY OF CLOUDS...BUT RAINFALL WAS AGAIN BELOW
    NORMAL. BUT TEMPERATURES REMAINED NEAR NORMAL. THE CLOUDS
    KEPT TEMPERATURES COOLER THAN USUAL DURING THE DAY...BUT
    A TAD WARMER AT NIGHT.

MARCH...RATHER BENIGN MONTH OF WEATHER. HIGH PRESSURE OVER THE
    REGION WEAKENED FRONTS AS THEY PUSHED INTO THE REGION. AS A
    RESULT...FRONTS BROUGHT LESS RAINFALL. STRONGEST FRONT ON
    THE 20TH PRODUCED STRONG SOUTH WINDS WITH GUSTS 35 TO 45 MPH.
    THE CONTINUED BELOW NORMAL RAINFALL FROM JANUARY TO MARCH
    MADE 2013 THE DRIEST START OF A YEAR ON RECORD.

APRIL...MILD MONTH WITH A BIT MORE IN WAY OF RAIN...BUT STILL THE
    RAINFALL WAS A BIT BELOW NORMAL. STRONG FRONT ROLLED ACROSS
    THE AREA ON THE 6TH AND 7TH...WITH WINDS GUSTING 35 TO 50 MPH
    IN THE CENTRAL WILLAMETTE VALLEY...BUT WINDS GUSTED 70 TO 80
    MPH IN THE COAST RANGE. DRY AND SUNNY WEATHER RETURNED TO
    CLOSE THE MONTH...WITH TEMPERATURES WELL INTO THE 70S FROM
    THE 23RD TO 27TH.

MAY...STARTED RATHER MILD...WITH HIGHS REACHING INTO THE MIDDLE
    80S BY THE 5TH. BUT IT WAS ALSO DRY...WITH NO RAIN FOR THE
    FIRST 11 DAYS OF MAY. AFTER THE 12TH...MORE SEASONABLE
    WEATHER RETURNED. HEAVY RAIN OCCURRED ACROSS THE CENTRAL
    WILLAMETTE VALLEY ON THE 27TH...WITH 0.59 INCH AT SALEM.
    OTHER STATIONS NEARBY REPORTED RAINFALL UP TO NEAR ONE INCH
    SUCH AS STAYTON WITH 1.11 INCH. RAINFALL WAS ABOVE NORMAL...
    BUT NOT ENOUGH TO COMPENSATE FOR THE DEFICIT SINCE JANUARY.

JUNE...LIKE MAY...JUNE WAS MILD BUT REMAINED ON THE DRY SIDE.
    OVERALL...RATHER BENIGN WEATHER MONTH. SHOWERS AND A FEW
    THUNDERSTORMS ACROSS THE REGION ON THE 12TH AND 13TH BROUGHT
    SOME EXCITEMENT. FUNNEL CLOUDS WERE REPORTED AROUND HARRISBURG
    AND JUST SOUTH OF CORVALLIS ON THE 13TH. THE STRONGEST
    THUNDERSTORM PRODUCED A TORNADO THAT CREATED SCATTTERED
    DAMAGE IN THE MCMINNVILLE AREA. AFTER AN OFFICIAL STORM
    SURVEY FROM THE NATIONAL WEATHER SERVICE...THE TORNADO WAS
    RATED AS A EF1 WHICH PRODUCES WINDS OF 86 TO 110 MPH. THE
    EF SCALE...OR ENHANCED FUJITA SCALE...CORRELATES WINDS SPEEDS
    WITH TORNADIC DAMAGE. AFTERWARDS...BENIGN WEATHER RESUMED.
    WITH FEWER CLOUDY DAYS...TEMPERATURES WERE SUNNY AND WARMER.
    A SIGNIFICANT WARM UP CLOSED THE MONTH WITH TEMPERATURES
    CLIMBING INTO THE MIDDLE 90S.

JULY...HIGH PRESSURE OVER THE NORTHEAST PACIFIC GREW STRONGER IN
    JULY. THIS MAINTAINED A DRY AIR MASS OVER THE REGION. WHILE A
    FEW AFTERNOON THUNDERSTORMS DID DEVELOP OVER THE CASCADES...
    NONE APPROACHED CENTRAL WILLAMETTE VALLEY. NOT A DROP OF RAIN
    FELL AT THE SALEM AIRPORT IN JULY. THIS IS THE 15TH JULY WITH
    NARY A DROP OF RAIN SINCE 1892. WITH A LOT MORE SUNNY DAYS...
    TEMPERATURES ROSE INTO THE 80S NEARLY EVERY DAY...WITH A
    OF 4 DAYS IN THE 90S (JULY 23-26). JULY 2013 HAD 28 DAYS WHERE
    THE HIGH TEMPERATURE WAS AT LEAST 80 DEG. THIS TIED 1900 AS
    THE 2ND SUCH STRING...BUT RECORD OF 30 DAYS IN 1958 REMAINS.

AUGUST...AUGUST CONTINUED WHERE JULY ENDED...DRIER THAN NORMAL.
    UPPER LOW PRESSURE OFF THE SOUTH OREGON COAST BECAME THE
    DOMINANT WEATHER PATTERN. THIS PATTERN MAINTAINED A WARM
    AND HUMID SOUTHERLY FLOW OVER THE REGION THROUGH MUCH OF
    THE MONTH. AFTERNOON/EVENING THUNDERSTORMS OVER THE CASCADES
    TEASED SALEM WITH A FEW SPRINKLES FROM TIME TO TIME. ON THE
    9TH AND 10TH...ISOLATED THUNDERSTORMS DRIFTED INTO THE CENTRAL
    WILLAMETTE VALLEY...BUT NOT MUCH RAIN OCCURRED. NORMAL OVERNIGHT
    AUGUST LOWS ARE IN THE LOWER 50S...BUT WITH THE WARM MUGGY AIR
    IN PLACE...TEMPERATURES HAD A DIFFICULT TIME DROPPING LOWER
    THAN THE UPPER 50S AND LOWER 60S. THIS MADE FOR MANY UNCOMFORTABLE
    NIGHTS...AND WITH MUGGY DAYS. THE DAILY LOWS IN AUGUST 2013
    AVERAGED 57.5 DEG...NEARLY 5 DEG ABOVE NORMAL. THIS MADE
    AUGUST 2013 HAVE THE WARMEST AVERAGE DAILY LOWS SINCE 1892.

SEPTEMBER...STARTED DRY AND WARM...WITH HIGHS WELL INTO THE 80S.
    THUNDERSTORMS OVER THE CASCADES AGAIN MOVED ACROSS THE SOUTH
    WILLAMETTE VALLEY ON THE 4TH AND 5TH. THIS TIME...THEY HAD A
    LOT OF RAIN. SALEM AIRPORT RECEIVED 1.82 INCHES OF RAIN ON
    THE 5TH. BUT NOT TOO FAR AWAY AT AUMSVILLE...A THUNDERSTORM
    DROPPED 1.50 INCHES IN UNDER 1 HOUR. TURNER HAD NEARLY 1 INCH
    OF RAIN IN ABOUT SAME AMOUNT OF TIME. AFTER THE 7TH...
    THE DRY MILD WEATHER CONTINUED. BUT THE CLASSIC SWITCH TO
    FALL STARTED AFTER THE 20TH. A SERIES OF STRONG FRONTS
    BROUGHT ROUNDS OF GUSTY SOUTH WINDS AND HEAVY RAIN...WITH
    THE HEAVIEST OCCURRING ON THE 28TH THROUGH THE 30TH. DURING
    THAT TIME...3 TO 5 INCHES OF RAIN FELL IN/AROUND SALEM.
    SEPTEMBER 2013 WAS THE WETTEST ON RECORD...WITH 7.05 INCHES.
    THE OLD RECORD FOR SEPTEMBER WAS 4.56 INCHES SET BACK IN 1911.

OCTOBER...AFTER A WET START...HIGH PRESSURE OVER THE REGION
    RESUMED THE DRY AND MILD WEATHER. NO RAIN OCCURRED BETWEEN THE
    9TH AND 26TH. WITH THE MOIST GROUND...THE LIGHT WINDS AND
    CLEAR SKIES BROUGHT BY THE HIGH PRESSURE RESULTED IN
    FREQUENT FOG AND LOW CLOUDS BETWEEN LATE NIGHT AND MORNING
    HOURS...WITH HEAVY FOG REPORTED EACH DAY FROM THE 19TH TO
    THE 25TH. TREND OF BELOW NORMAL RAINFALL RESUMED IN OCTOBER.

NOVEMBER...RATHER BENIGN MONTH...AS TEMPERATURES AVERAGE NEAR
    NORMAL. A STRONG COLD FRONT ROLLED ACROSS THE REGION ON THE
    MORNING OF THE 7TH. WINDS GUSTED 30 TO 35 MPH AT SALEM...BUT
    NEAR DALLAS...WINDS GUSTED 60 TO 70 MPH WITH SOME DAMAGE TO
    AGRICULTURAL BUILDINGS. AFTERWARDS...WEATHER WAS MUCH MORE
    BENIGN. RAINFALL WAS WELL BELOW NORMAL AS THE MAIN STORM
    TRACK WAS SHUNTED TOO FAR NORTH...IN PART DUE TO PERSISTENT
    HIGH PRESSURE OVER THE WESTERN UNITED STATES. AFTER THE 20TH
    PATCHY FOG AND EVEN FREEZING FOG CREATED LOCALIZED ICY/FROSTY
    ROADWAYS AT NIGHT INTO THE EARLY MORNING. BUT FOG CLEARED ON
    MOST MORNINGS...LEAVING THE REGION UNDER MILD CONDITIONS.

DECEMBER...STARTED MILD AT FIRST...BUT VERY COLD ARCTIC AIR
    PUSHED INTO THE PACIFIC NORTHWEST ON THE 3RD AND 4TH...
    BRINGING THE COLDEST AIR SINCE 1972. ON THE 6TH...SNOW FELL
    ACROSS THE REGION...WITH 1 TO 2 INCHES IN THE SALEM AREA
    BUT 2 TO 4 INCHES FURTHER SOUTH OF SALEM. BUT TO THE NORTH
    OF SALEM...THERE WAS LESS THAN AN INCH. ON THE 7TH...SKIES
    CLEARED AND THE TEMPERATURES STEADILY DROPPED FROM THE 20S
    DURING THE DAY INTO THE LOWER TEENS THAT EVENING. HOURS LATER
    ON THE 8TH...IT WOULD BE A COLD 8 DEG. THIS WAS THE COLDEST
    NIGHT SINCE DECEMBER 1990.

    WARMER WEATHER RETURNED BY THE 12TH WITH SEASONABLE WEATHER.
    BUT IT REMAINED ON THE DRY SIDE AS PERSISTENT HIGH PRESSURE
    REMAINED OVER THE WESTERN UNITED STATES. THIS HIGH PRESSURE
    BROUGHT LIGHT WINDS AND SET UP STRONG INVERSIONS...WHICH
    PREVENTED GOOD MIXING OF THE AIR IN THE VALLEY. THIS LED TO
    PERSISTENT FOG AND LOW CLOUDS AND AREAS OF STAGNANT AIR.

=================================================================
NEW RECORDS SET IN 2013 (PREVIOUS RECORD IN PARENTHESES)
    PERIOD OF RECORD FOR SALEM: 1892-2013
    (* INDICATES MOST RECENT OF MULTIPLE OCCURRENCES)

JAN...
     MONTH    8TH DRIEST JANUARY.
FEB...
     NO NEW RECORDS IN FEBUARY.
MAR...
    31ST    TIED DAILY HIGH       75 DEG    (75/1911)
APR...
     4TH    NEW DAILY WARM LOW    53 DEG    (51/1991)
     5TH    NEW DAILY WARM LOW    52 DEG    (49/1963)
MAY...
     5TH    TIED DAILY HIGH       87 DEG    (87/1992)
JUN...
     23RD   TIED DAILY WARM LOW   59 DEG    (59/2004*)
JUL...
     1ST    NEW DAILY WARM LOW    65 DEG    (64/1942)
    28TH    TIED DAILY LOW        43 DEG    (44/1959)
    MONTH   TIED RECORD FOR 2ND MOST DAYS OF 80 DEG OR WARMER.
            28 DAYS IN 2013 AND 1900.
            CURRENT RECORD IS 30 SUCH DAYS SET IN 1958.
AUG...
    15TH    NEW DAILY WARM LOW    65 DEG    (64/2008*)
    27TH    TIED DAILY WARM LOW   60 DEG    (60/1986*)
    30TH    NEW DAILY WARM LOW    61 DEG    (61/2009*)
    MONTH   WARMEST AUGUST FOR AVERAGE DAILY LOWS
SEP...
    2ND     NEW DAILY WARM LOW  64 DEG    (63/1927)
    3RD     TIED DAILY WARM LOW  61 DEG    (61/1977)
    4TH     TIED DAILY WARM LOW  59 DEG    (59/1977*)
   10TH     TIED DAILY WARM LOW  62 DEG    (62/1960)
   11TH     TIED DAILY WARM LOW  59 DEG    (59/1907)
   11TH     TIED DAILY HIGH  96 DEG    (96/1922)
   28TH     NEW DAILY RAINFALL1.33 IN.    (0.94/1962)
   29TH     NEW DAILY RAINFALL1.63 IN.    (0.96/1951)
   MONTH    WETTTEST SEPTEMBER7.05 IN.    (4.56/1911)
OCT...
      NO NEW RECORDS IN OCTOBER.
NOV...
      NO NEW RECORDS IN NOVEMBER.
DEC...
       5TH    NEW DAILY LOW        17 DEG    (19/1992)

YEAR   2013 WAS DRIEST YEAR ON RECORD WITH 23.59 INCHES.
       THE PREVIOUS RECORD WAS 23.74 INCHES BACK IN 1985.

============================================================
2013 SALEM TEMPERATURE DATA

      |--- AVERAGES ----| MEAN T DEPART| EXTREME TEMPS/DATE  |
MONTH |HIGHS LOWS   MEAN|  FROM NORMAL | HIGHEST      LOWEST |
=============================================================
JAN     41.9  32.4   37.1   -4.1 DEG     55/31ST      20/12TH
FEB     50.5  36.6   43.6   +0.5 DEG     59/15TH*     29/ 2ND
MAR     57.5  37.8   47.7   +0.8 DEG     75/31ST*     24/ 4TH
APR     61.9  41.2   51.6   +1.2 DEG     81/26TH      32/30TH
MAY     69.4  46.9   58.1   +1.9 DEG     87/ 5TH      35/ 1ST
JUN     76.3  51.6   63.9   +2.3 DEG     96/30TH      42/14TH
JUL     85.9  55.5   70.5   +2.9 DEG     95/26TH      48/28TH
AUG     83.7  57.5   70.6   +3.0 DEG     95/ 6TH      50/13TH
SEP     74.1  54.6   64.3   +1.7 DEG     96/11TH      45/26TH
OCT     63.4  39.8   51.6   -1.6 DEG     75/ 6TH      30/29TH
NOV     53.1  38.3   45.7   +0.2 DEG     60/12TH      24/25TH*
DEC     42.5  29.8   36.2   -3.9 DEG     56/22ND*      8/ 8TH

2013    63.4  43.5   53.4   +0.4 DEG     96/SEP 11*    8/DEC 8
NORMAL  63.6  42.5   53.0                 *LAST OF MULTIPLE

DAYS WITH TEMPERATURES IN 2013 WHERE...
       |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
       <=32  60+  70+  80+  90+ 100+  <=20  <=32   60+   70+
==============================================================
JAN      5    0    0    0    0    0      1    16    0     0
FEB      0    0    0    0    0    0      0     3    0     0
MAR      0   10    2    0    0    0      0     8    0     0
APR      0   15    5    1    0    0      0     1    0     0
MAY      0   28   13    7    0    0      0     0    0     0
JUN      0   30   23   11    3    0      0     0    3     0
JUL      0   31   31   28    8    0      0     0    4     0
AUG      0   31   30   24    5    0      0     0    7     0
SEP      0   29   19   10    2    0      0     0    5     0
OCT      0   23    6    0    0    0      0     2    0     0
NOV      0    3    0    0    0    0      0    10    0     0
DEC      4    0    0    0    0    0      6    17    0     0

2013     9  200  129   81   18    0      7    57   19     0
NORMAL   1  197  124   59   15    1      4    50    4     0

FIRST/LAST OCCURRENCES OF...       IN 2013      NORMAL
  LAST 32 DEG OR COLDER IN SPRING    APR 30     APR 18
  FIRST 70+ DEG OF THE YEAR          MAR 30     APR  4
  FIRST 80+ DEG OF THE YEAR          APR 26     MAY 11
  FIRST 90+ DEG OF THE YEAR          JUN 28     JUN 21

  LAST 90+ DEG OF THE YEAR           SEP 11     SEP  6
  LAST 80+ DEG OF THE YEAR           SEP 12     SEP 29
  LAST 70+ DEG OF THE YEAR           OCT 23     OCT 18
  FIRST 32 DEG OR COLDER IN FALL     OCT 29     OCT 27
==============================================================

2013 SALEM RAINFALL DATA...
DAYS WITH TEMPERATURES WHERE ...
       TOTAL  DEPARTURE  DAYS WITH AT LEAST...  GREATEST IN
MONTH   RAIN  FM NORMAL   0.01 0.10 0.50 1.00   24HRS & DATE
===============================================================
JAN     1.63    -4.33      13    7    0    0    0.34 JAN 24-25
FEB     1.42    -3.14      13    6    0    0    0.50 FEB 22-23
MAR     2.21    -1.78      10    5    2    0    1.22 MAR 19-20
APR     2.39    -0.42      12    8    1    0    0.73 APR 5-6
MAY     2.94    +0.72      15    9    2    0    0.73 MAY 21
JUN     1.02    -0.53       8    5    0    0    0.44 JUN 25-26
JUL     0.00    -0.46       0    0    0    0    NO RAIN IN JULY
AUG     0.35    -0.10       6    1    0    0    0.19 AUG 28-29
SEP     7.05    +5.77      12   10    4    3    2.26 SEP 29-30
OCT     0.63    -2.40       6    2    0    0    0.22 OCT 2
NOV     2.68    -3.82      14    6    1    0    0.99 NOV 18-19
DEC     1.27    -5.59      10    3    0    0    0.80 DEC 1-2

  2013  23.59  -16.08     119   62   10    3    2.26 SEP 29-30
NORMAL  39.67             144   91   25    6

SALEM WATER YEAR 2012-13 (1 OCT 2012 THROUGH 30 SEP 2013)
      41.27 INCHES      1.60 INCHES ABOVE NORMAL

============================================================

2013 SALEM WIND AND PRESSURE DATA...
      AVERAGE SPEED (MPH)   STRONGEST WIND GUST (MPH)
MONTH   2013  NORMAL       DIRECTION   SPEED    DATE
============================================================
JAN      4.3    7.1        SOUTH       38 MPH   JAN  9
FEB      6.1    6.9        SOUTH       41 MPH   FEB 22
MAR      4.2    7.4        WEST        37 MPH   MAR 20
APR      6.0    6.9        SOUTH       41 MPH   APR  7
MAY      6.5    6.4        WEST        33 MPH   MAY 13
JUN      5.3    6.5        NORTH       26 MPH   JUN 10
JUL      6.4    6.5        NORTHEAST   28 MPH   JUL 29
AUG      4.4    6.0        NORTH       29 MPH   AUG 20
SEP      6.0    5.5        SOUTH       47 MPH   SEP 28
OCT      3.2    5.7        NORTH       29 MPH   OCT 27
NOV      5.2    7.1        SOUTH       36 MPH   NOV 18
DEC      4.7    7.1        SOUTH       36 MPH   DEC 20

2013     5.8    6.6        SOUTH       47 MPH   SEP 28

HIGHEST PRESSURE IN 2013...30.66 INCHESJAN 16
LOWEST PRESSURE IN 2013...29.55 INCHESMAR  6

============================================================
SALEM CLIMATE PERIOD OF RECORDS...      1892 TO 2013
SALEM CLIMATE NORMALS BASED ON...       1981 TO 2010
============================================================

DATA COMPILED BY ROCKEY
NATIONAL WEATHER SERVICE PORTLAND OREGON

ONLINE AT:     WEATHER.GOV/PORTLAND


$$




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