Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS56 KOTX 012108 CCA
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
208 PM PDT THU JUN 1 2017

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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              97   05/25/1928
 LOW               24   05/08/2002
HIGHEST            90   05/30        MM      MM       82  05/03
LOWEST             35   05/13        MM      MM       38  05/20
                        05/01
AVG. MAXIMUM     68.0              66.4     1.6     69.5
AVG. MINIMUM     46.1              43.8     2.3     47.6
MEAN             57.0              55.1     1.9     58.6
DAYS MAX >= 90      1               0.2     0.8        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               1.1    -1.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.71   1948
 MINIMUM         0.06   1935
TOTALS           1.31              1.62   -0.31     0.78
DAILY AVG.       0.04              0.05   -0.01     0.03
DAYS >= .01         8              10.2    -2.2        9
DAYS >= .10         5               4.3     0.7        2
DAYS >= .50         0               0.9    -0.9        0
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.39   05/16 TO 05/16           05/21 TO 05/22

SNOWFALL (INCHES)
RECORDS
 TOTAL            3.5   1967
TOTALS            0.0               0.1    -0.1      0.0
SINCE 7/1        61.5              44.9    16.6     34.2
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   MM                                MM

DEGREE_DAYS
HEATING TOTAL     272               321     -49      198
 SINCE 7/1       6562              6457     105     5478
COOLING TOTAL      35                14      21        6
 SINCE 1/1         35                14      21       12
..................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
HIGHEST WIND SPEED/DIRECTION    32/250    DATE  05/24
HIGHEST GUST SPEED/DIRECTION    40/260    DATE  05/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       3
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

$$
MAY WAS VERY TYPICAL ACROSS THE INLAND NORTHWEST WITH THE MONTH
FINISHING WITH NEAR NORMAL TEMPERATURES AND PRECIPITATION ACROSS
NORTHEAST WASHINGTON AND THE NORTH IDAHO PANHANDLE. SPRING WEATHER
TYPICAL MEANS LOTS OF WEATHER CHANGES AND THIS MONTH WAS NO
EXCEPTION.  THE MONTH STARTED OFF COOL WITH SPOKANE ONLY REACHING 50
DEGREES ON THE 1ST.  A FAST WARM FOLLOWED WITH 83 ON THE 4TH...AND
THEN A QUICK COOL DOWN BACK INTO THE 50S ON THE 6TH.  THIS BIG OF AN
AIR MASS CHANGE RESULTED IN SCATTERED THUNDERSTORMS ON THE 5TH WITH
BRIEF HEAVY RAIN AND SMALL HAIL.  ANOTHER WARMUP FOLLOWED WITH MID
TO UPPER 70S ON THE 10TH FOLLOWED BY ANOTHER COOL DOWN THAT RESULTED
IN ISOLATED THUNDERSTORMS ON THE 11TH.  A LARGE UPPER TROUGH
DOMINATED THE WESTERN U.S. FROM THE 12TH THROUGH 18TH BRINGING A
PERIOD OF COOL AND SHOWERY WEATHER WITH HIGH TEMPERATURES ONLY IN
THE 50S...ISOLATED THUNDERSTORMS...AND SMALL HAIL.  ANOTHER WARMUP
FOLLOWED WITH HIGHS WARMING INTO THE LOWER 80S ON THE 22ND AND 23RD
BEFORE A STRONG DRY COLD FRONT BROUGHT WINDY CONDITIONS ON THE 24TH
WITH HIGHS BACK DOWN INTO THE 60S. STRONG HIGH PRESSURE BUILD IN TO
FINISH OUT THE MONTH WITH HIGHS BACK IN THE 80S...WITH EVEN 90 REACHED
ON THE 30TH.

NO RECORDS WERE SET DURING THE MONTH AT THE SPOKANE AIRPORT.



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