Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS56 KOTX 021705 CCA
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
351 AM PDT FRI SEP 1 2017

...................................

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             108   08/04/1961
                        08/04/1928
 LOW               35   08/29/1965
                        08/31/1964
HIGHEST            98   08/29        MM      MM       93  08/18
                                                          08/17
                                                          08/16
LOWEST             48   08/25        MM      MM       50  08/23
                                                          08/03
AVG. MAXIMUM     87.8              82.9     4.9     84.6
AVG. MINIMUM     59.7              55.8     3.9     57.8
MEAN             73.8              69.3     4.5     71.2
DAYS MAX >= 90     16               6.6     9.4       10
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.12   1923
 MINIMUM            T   2000
TOTALS              TR             0.59   -0.59     0.16
DAILY AVG.          T              0.02   -0.02     0.01
DAYS >= .01         0               3.8    -3.8        2
DAYS >= .10         0               1.5    -1.5        1
DAYS >= .50         0               0.2    -0.2        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL       T   08/24 TO 08/24           08/09 TO 08/09

DEGREE_DAYS
HEATING TOTAL       3                33     -30       10
 SINCE 7/1          3                65     -62       30
COOLING TOTAL     281               168     113      209
 SINCE 1/1        705               411     294      487
..................................................

WIND (MPH)
AVERAGE WIND SPEED              6.6
HIGHEST WIND SPEED/DIRECTION    29/240    DATE  08/24
HIGHEST GUST SPEED/DIRECTION    33/230    DATE  08/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     38

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                     13

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

AUGUST 2017 WAS ONCE AGAIN WARMER AND DRIER THAN NORMAL ACROSS NE
WASHINGTON AND THE NORTH IDAHO PANHANDLE.  THE FIRST 11 DAYS BROUGHT
WARM AND SMOKY CONDITIONS AS AN UPPER RIDGE SET UP OFF THE COAST
RESULTING IN NORTHWEST FLOW WHICH BROUGHT SMOKE FROM BRITISH
COLUMBIA INTO THE REGION.  THE 4TH WAS ESPECIALLY SMOKY WITH
VISIBILITY DOWN TO 1.5 MILES AT THE SPOKANE AIRPORT.  ON THE 7TH AND
8TH A WEAK SYSTEM BROUGHT ISOLATED MOUNTAIN THUNDERSTORMS.  THE
SPOKANE AIRPORT WARMED INTO THE 90S EACH DAY FROM THE 1ST THROUGH
THE 11TH...WHICH COMBINED WITH THE LATE JULY HEAT MADE FOR 15
CONSECUTIVE DAYS OF 90 OR HIGHER WHICH WAS A RECORD.  A SIGNIFICANT
COOL DOWN ON THE 12TH AND 13TH BROUGHT LIGHT SHOWERS...WITH HIGHS
ONLY IN THE 70S ON THE 13TH.  BREEZY WINDS ALSO HELPED CLEAR THE
SMOKE OUT OF THE REGION.  THE WEATHER BECAME SEASONAL FROM THE 15TH
THROUGH THE 26TH WITH GENERALLY DRY CONDITIONS AND NORMAL
TEMPERATURES.  AN UPPER RIDGE BUILT IN AT THE END OF THE MONTH WITH
HOT TEMPERATURES IN THE 90S RETURNING WITH SPOKANE FELTS FIELD EVEN
HITTING 100F ON THE 29TH. THIS ALLOWED REGIONAL FIRES TO BECOME MORE
ACTIVE WITH A RETURN OF HAZY SKIES. EARLY ON THE 30TH A WEAK WAVE
BROUGHT EARLY MORNING THUNDERSTORMS OVER THE NORTHERN PALOUSE FROM
OAKESDALE TO PLUMMER.

THE SPOKANE AIRPORT ON THE 29TH TIED A RECORD HIGH OF 98 DEGREES.



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