Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS56 KOTX 032153 CCA
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
534 AM PDT MON MAY 1 2017

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              90   04/24/1977
                        04/29/1926
 LOW               16   04/02/1936
HIGHEST            64   04/22        MM      MM       85  04/20
LOWEST             29   04/11        MM      MM       33  04/25
                        04/03                             04/15
                                                          04/05
AVG. MAXIMUM     55.0              57.2    -2.2     66.2
AVG. MINIMUM     37.5              36.8     0.7     43.2
MEAN             46.3              47.0    -0.7     54.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      6               6.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.97   1893
 MINIMUM         0.08   1956
TOTALS           1.60              1.28    0.32     0.32
DAILY AVG.       0.05              0.04    0.01     0.01
DAYS >= .01        14              10.1     3.9        5
DAYS >= .10         4               4.2    -0.2        1
DAYS >= .50         1               0.2     0.8        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.51   04/17 TO 04/17           04/04 TO 04/04

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.6   1964
TOTALS            0.5               1.0    -0.5      0.0
SINCE 7/1        61.5              44.8    16.7     34.2
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.4    -0.4        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.5   04/10 TO 04/10           04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL     556               540      16      308
 SINCE 7/1       6290              6136     154     5280
COOLING TOTAL       0                 0       0        6
 SINCE 1/1          0                 0       0        6
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.2
HIGHEST WIND SPEED/DIRECTION    41/220    DATE  04/07
HIGHEST GUST SPEED/DIRECTION    55/220    DATE  04/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               21     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       5
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                1     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

$$
APRIL 2017 BROUGHT WETTER THAN NORMAL CONDITIONS ONCE AGAIN ALONG
WITH SLIGHTLY BELOW NORMAL TEMPERATURES TO EASTERN WASHINGTON AND THE NORTH
IDAHO PANHANDLE.  THE RAIN CONTRIBUTED TO ADDITIONAL LANDSLIDES WITH
LOCALIZED ROAD CLOSURES AT TIMES DUE TO WATER OVER ROADS.  SOME OF
THE MORE SIGNIFICANT LAND SLIDES AND ROAD WASHOUTS THAT OCCURRED
INCLUDE PORCUPINE BAY ROAD IN LINCOLN COUNTY...HIGHWAY 395 NEAR
BOYDS AS WELL AS NEAR COLVILLE...INCHELIUM HIGHWAY...AND US 95 IN
BONNERS FERRY.  THE ACTIVE WEATHER BEGAN ON THE 7TH AS A VIGOROUS
COLD FRONT TRACKED THROUGH THE AREA.  WINDS GUSTED TO 55 MPH AT THE
SPOKANE AREA WITH THUNDERSTORMS ADDING TO THE GUSTY WINDS IN THE REGION.
TEMPERATURES FELL FROM NEAR 60 ON THE 7TH TO ONLY THE MID 40S ON THE 8TH
IN SPOKANE.  MOISTURE MET THIS COLD AIR ON THE MORNING OF THE 10TH WITH
SNOW AT THE SPOKANE AIRPORT WITH A HALF INCH OF SNOW. ON THE 18TH...
THUNDERSTORMS OCCURRED IN THE REGION WITH HALF INCH HAIL IN COLBERT AND
NEAR ROCKFORD...AND A 41 MPH WIND GUST AT THE SPOKANE AIRPORT.

A COUPLE RECORDS WERE BROKE DURING THE MONTH AT THE SPOKANE AIRPORT.
THIS INCLUDES RECORD PRECIPITATION OF 0.51 INCHES ON THE 17TH...AND
RECORD SNOWFALL OF 0.5 INCHES ON THE 10TH.



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