000
CXUS56 KOTX 040048
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
547 PM PDT WED OCT 3 2012

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

SEPTEMBER 2012 WAS A WARM AND DRY MONTH ACROSS NORTHEAST WASHINGTON
AND THE NORTH IDAHO PANHANDLE.  ONLY A TRACE OF RAIN WAS RECORDED
FOR THE ENTIRE MONTH OF SEPTEMBER AT THE SPOKANE AIRPORT.  THE MAIN
WEATHER EVENT FOR THE MONTH WAS A DRY LIGHTNING EPISODE DURING THE
EVENING HOURS OF THE 8TH THROUGH THE MORNING OF THE 9TH.  THESE
STORMS WERE FOCUSED MAINLY ACROSS NORTH CENTRAL WASHINGTON EXTENDING
AS FAR EAST AS THE UPPER COLUMBIA BASIN WHERE SEVERAL FIRES WERE
STARTED.  STRONG WINDS ON THE 9TH AND 10TH THEN FANNED THESE
FLAMES.  ON THE 10TH A COMBINATION OF SMOKE AND BLOWING DUST WAS
OBSERVED IN SPOKANE WITH A PEAK WIND GUST OF 41 MPH.  STRONG HIGH
PRESSURE BUILD IN FOR THE REMAINDER OF THE MONTH.  SMOKE SETTLED
INTO THE REGION FOR SEVERAL DAYS MAINLY DUE TO ACTIVE FIRES IN NORTH
CENTRAL WASHINGTON AND CENTRAL IDAHO.

THE TRACE OF PRECIPITATION AT SPOKANE INTERNATIONAL AIRPORT DURING
THE MONTH TIED A RECORD FOR THE LOWEST SEPTEMBER PRECIPITATION ON
RECORD.

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/18/1938
 LOW               22   09/23/2000
                        09/24/1926
HIGHEST            86   09/20        MM      MM       93  09/11
                        09/08                             09/10
LOWEST             35   09/11        MM      MM       40  09/28
AVG. MAXIMUM     77.7              72.9     4.8     79.1
AVG. MINIMUM     49.1              47.4     1.7     50.9
MEAN             63.4              60.2     3.2     65.0
DAYS MAX >= 90      0               1.2    -1.2        7
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.6    -0.6        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.58   1927
 MINIMUM            T   1999
TOTALS              T              0.67   -0.67     0.14
DAILY AVG.          T              0.02   -0.02     0.00
DAYS >= .01         0               5.1    -5.1        2
DAYS >= .10         0               2.1    -2.1        1
DAYS >= .50         0               0.2    -0.2        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL       T   09/23 TO 09/23           08/31 TO 09/01

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.4   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30           09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL      68               183    -115       99
 SINCE 7/1        102               248    -146      147
COOLING TOTAL      27                38     -11      105
 SINCE 1/1        535               449      86      426
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    32/230    DATE  09/10
HIGHEST GUST SPEED/DIRECTION    41/250    DATE  09/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     43

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     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                     11

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

$$