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000
CXUS56 KOTX 021941
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1240 PM PDT TUE MAY 02 2023

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2023

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   04/01/1936
HIGHEST           84   04/29         MM      MM       66  04/07
LOWEST            27   04/02         MM      MM       25  04/10
                       04/05
                       04/12
AVG. MAXIMUM    56.5               56.9    -0.4     51.7
AVG. MINIMUM    36.3               37.0    -0.7     32.6
MEAN            46.4               47.0    -0.6     42.1
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32    12                8.3     3.7       14
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.97   1893
 MINIMUM        0.08   1956
TOTALS          1.00               1.25   -0.25     1.09
DAILY AVG.      0.03               0.04   -0.01     0.04
DAYS >= .01       11               10.3     0.7       10
DAYS >= .10        5                4.1     0.9        5
DAYS >= .50        0                0.2    -0.2        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.27   04/10 TO 04/11               0.29

SNOWFALL (INCHES)
RECORDS
 TOTAL           6.6   1964
TOTALS           3.1                0.7     2.4      2.1
SINCE 7/1       62.3               45.3    17.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        2                0.3     1.7        1
GREATEST
 SNOW DEPTH        2   04/03                           1  04/15
 24 HR TOTAL      MM                                 2.1

DEGREE DAYS
HEATING TOTAL    555                542      13      679
 SINCE 7/1      6102               6034      68       MM
COOLING TOTAL      5                  0       5        0
 SINCE 1/1         5                  0       5       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.7
HIGHEST WIND SPEED/DIRECTION    36/240    DATE  04/01
HIGHEST GUST SPEED/DIRECTION    50/230    DATE  04/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.69
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                7     SLEET                      0
FOG                       9     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.

$$

APRIL 2023 BROUGHT NEAR NORMAL TEMPERATURES TO NORTHEAST WASHINGTON
AND THE NORTH IDAHO PANHANDLE.  PRECIPITATION WAS ABOVE NORMAL OVER
THE NORTHEAST WASHINGTON MOUNTAINS WHILE BELOW NORMAL FROM THE
SPOKANE/COEUR D`ALENE AREA INTO THE NORTH IDAHO PANHANDLE. THE MONTH
BROUGHT A WIDE VARIEY OF WEATHER INCLUDING SNOW, GRAUPEL,
THUNDERSTORMS, AND WARM TEMPERATURES. ON THE 3RD A LOCALIZED BAND OF
HEAVY SNOW HIT SOUTH OF SPOKANE WITH 8 INCHES NEAR MARSHALL, 6" IN
CHENEY, AND 4" IN PLUMMER.  THEN AN ABUNDANCE OF SNOW AND GRAUPEL
SHOWERS OCCURRED IN THE AFTERNOON. A FEW OF THESE WERE HEAVY WITH A
QUICK ACCUMULATION OF GRAUPEL CONTRIBUTING TO ACCIDENTS. NUMEROUS
CRASHES NEAR 4TH OF JULY PASS RESULTING IN AN EXTENDED CLOSURE OF
INTERSTATE 90.  ONE DAY LAYER, A SNOW SQUALL HIT I-90 AGAIN, THIS
TIME BETWEEN MULLAN AND LOOKOUT PASS WITH MULTIPLE CRASHES. ON THE
10TH HEAVY RAIN TRACKED UP INTO THE OKANOGAN HIGHLANDS INTO THE
NORTHEAST WASHINGTON MOUNTAINS WITH SEVERAL REPORTS OF 1 TO 2 INCHES
OF RAIN. THE HEAVY RAIN COMBINED WITH SNOW MELT LED TO FLOODING IN
SOME AREAS. IN HUNTERS WATER CAME UP TO BUILDINGS AND ON ROADS.
THERE WERE ALSO SEVERAL REPORTS OF ROAD WASHOUTS IN STEVENS COUNTY
FROM CULVERT PROBLEMS WITH WATER ON ROADS, AS WELL AS SR21 11 MILES
SOUTH OF REPUBLIC. ON THE 11TH WINDY CONDITIONS OCCURRED WITH THE
SPOKANE AIRPORT ONE OF THE WINDIER SPOTS WITH A PEAK GUST OF 50 MPH.
 ON THE 23RD EVENING THUNDERSTORMS HIT A COUPLE AREAS FROM CHENEY
TOWARDS SPOKANE VALLEY AS WELL AS PORTIONS OF THE UPPER COLUMBIA
BASIN AROUND ODESSA AND LIND.  THE STORMS PRODUCED BRIEF HEAVY RAIN
WITH AMOUNTS AROUND A HALF INCH. A SIGNIFICANT WARM UP CLOSED OUT
THE MONTH AS STRONG HIGH PRESSURE SET UP OVER THE REGION.  THIS
ALLOWED TEMPERATURES TO WARM UP INTO THE LOW TO MID 80S.

THE SPOKANE AIRPORT TIED A RECORD HIGH TEMPERATURE AT 82 DEGREES ON
THE 30TH.