Climatological Report (Annual)
Issued by NWS Spokane, WA

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000
CXUS56 KOTX 010903 CCA
CLALWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
100 AM PST SUN JAN 01 2023

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2022...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            117   07/27/1939
 LOW             -23   12/13/1919
HIGHEST          108   07/29
LOWEST                 01/01
AVG. MAXIMUM    63.9               64.2    -0.3
AVG. MINIMUM    43.2               43.3    -0.1
MEAN            53.6               53.8    -0.2
DAYS MAX >= 90    55               44.1    10.9
DAYS MAX <= 32    15               12.3     2.7
DAYS MIN <= 32    95               79.8    15.2
DAYS MIN <= 0      1                0.3     0.7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.76   1884
 MINIMUM        7.73   2007
TOTALS         15.70              12.87    2.83
DAILY AVG.      0.05               0.04    0.01
DAYS >= .01      108              106.2     1.8
DAYS >= .10       45               41.4     3.6
DAYS >= .50        8                3.4     4.6
DAYS >= 1.00       0                0.2    -0.2
GREATEST
 24 HR. TOTAL   0.96   06/12 TO 06/13

SNOWFALL (INCHES)
RECORDS
 TOTAL          62.2   1916
TOTALS          15.9               12.7     3.2
DAYS >= TRACE     22               11.0    11.0
DAYS >= 1.0        5                4.2     0.8
GREATEST
 24 HR TOTAL     0.6

DEGREE DAYS
HEATING TOTAL   5186               4980     206
COOLING TOTAL   1150                913     237

FREEZE DATES
RECORD
 EARLIEST     09/17/1965
 LATEST       05/12/1985
EARLIEST                        11/07
LATEST                          04/17
................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    59/270    DATE  04/04

SKY COVER
AVERAGE SKY COVER        0.37

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             25     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      31
LIGHT RAIN              114     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                1     SNOW                       6
LIGHT SNOW               28     SLEET                      1
FOG                      77     FOG W/VIS <= 1/4 MILE     18
HAZE                     58

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

$$


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