Climatological Report (Monthly)
Issued by NWS Spokane, WA

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000
CXUS56 KOTX 011143
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
443 AM PDT THU JUN 01 2023

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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             97   05/25/1928
 LOW              24   05/08/2002
                       05/01/1954
HIGHEST           90   05/20         MM      MM       73  05/26
LOWEST            43   05/23         MM      MM       33  05/08
                                                          05/09
                                                          05/10
AVG. MAXIMUM    74.7               67.1     7.6     60.9
AVG. MINIMUM    52.3               44.9     7.4     41.4
MEAN            63.5               56.0     7.5     51.1
DAYS MAX >= 90     1                0.3     0.7        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                1.5    -1.5        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.71   1948
 MINIMUM        0.06   1935
TOTALS          1.35               1.55   -0.20     1.50
DAILY AVG.      0.04               0.05   -0.01     0.05
DAYS >= .01        8                9.7    -1.7       12
DAYS >= .10        7                3.9     3.1        6
DAYS >= .50        0                0.7    -0.7        0
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.65   05/04 TO 05/05               0.35

SNOWFALL (INCHES)
RECORDS
 TOTAL           3.5   1967
TOTALS           0.0                0.1    -0.1        T
SINCE 7/1       62.3               45.4    16.9       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    112                294    -182      421
 SINCE 7/1      6214               6329    -115       MM
COOLING TOTAL     73                 15      58        0
 SINCE 1/1        78                 15      63       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
HIGHEST WIND SPEED/DIRECTION    29/210    DATE  05/22
HIGHEST GUST SPEED/DIRECTION    37/200    DATE  05/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.51
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

MAY 2023 BROUGHT WARMER THAN NORMAL TEMPERATURES TO NORTHEAST
WASHINGTON AND THE NORTH IDAHO PANHANDLE. THE MONTH BROUGHT SEVERAL
ROUNDS OF SHOWERS AND THUNDERSTORMS.  RAIN AMOUNTS OVER THE REGION
WERE VARIABLE GIVEN THE SHOWERY NATURE WITH SOME AREAS WETTER THAN
NORMAL WHILE OTHER ON THE DRY SIDE. THE FIRST THROUGH THE 9TH
BROUGHT AN ACTIVE PERIOD WITH THUNDERSTORMS.  SPOKANE REPORTED A
THUNDERSTORM ON FIVE OF THE NINE DAYS.  DURING THE EARLY MORNING
HOURS ON THE 18TH THUNDERSTORMS PRODUCED HEAVY RAIN AND FREQUENT
LIGHTNING FROM BONNERS FERRY DOWN TO SANDPOINT. ON THE 20TH AND 21ST
SEVERE THUNDERSTORMS IMPACTED THE REGION NORTH OF SPOKANE AND COEUR
D`ALENE. ON THE 20TH A SEVERE THUNDERSTORM IN CHEWELAH DUMPED HALF
DOLLAR SIZED HAIL. QUARTER SIZED HAIL FELL NEAR IONE AT BIG MEADOW
CAMPGROUND. HEAVY RAIN CONTRIBUTED TO WASHOUTS ON MEADOW CREEK ROAD
WITH A SMALL LANDSLIDE. ON THE 21ST ONE OF THE HARDEST HIT AREAS WAS
ADDY WITH HAIL REPORTS RANGING FROM QUARTER TO GOLF BALL SIZE. A
TREE WAS ALSO BLOWN DOWN IN COLVILLE.

THE OTHER STORY OF THE MONTH WAS THE WARM TEMPERATURES. THE FIRST
THREE WEEKS BROUGHT SEVERAL DAYS OF WELL ABOVE NORMAL TEMPERATURES
WITH TEMPERATURES THROUGH THE PERIOD AVERAGING 8-10 DEGREES ABOVE
NORMAL. SEVERAL DAYS WARMED INTO THE 80S, WITH SPOKANE AIRPORT
REACHING ITS FIRST 90 DEGREE DAY ON THE 20TH WHICH WAS ABOUT A MONTH
AHEAD OF SCHEDULE. SEVERAL HIGH TEMPERATURE RECORDS OCCURRED DURING
THE MONTH AT THE SPOKANE AIRPORT INCLUDING 85 ON THE 2ND AND 3RD, 87
ON THE 19TH, AND 90F ON THE 20TH.

$$


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