Climatological Report (Annual)
Issued by NWS Spokane, WA

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618
CXUS56 KOTX 011227
CLALWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
417 AM PST MON JAN 01 2024

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2023...

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

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            117   07/27/1939
 LOW             -23   12/13/1919
HIGHEST          109   08/15
LOWEST            10   01/30
AVG. MAXIMUM    66.1               64.2     1.9
AVG. MINIMUM    45.2               43.3     1.9
MEAN            55.7               53.8     1.9
DAYS MAX >= 90    61               44.1    16.9
DAYS MAX <= 32     6               12.3    -6.3
DAYS MIN <= 32    81               79.8     1.2
DAYS MIN <= 0      0                0.3    -0.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.76   1884
 MINIMUM        7.73   2007
TOTALS         10.81              12.87   -2.06
DAILY AVG.      0.03               0.04   -0.01
DAYS >= .01      104              106.2    -2.2
DAYS >= .10       31               41.4   -10.4
DAYS >= .50        3                3.4    -0.4
DAYS >= 1.00       0                0.2    -0.2
GREATEST
 24 HR. TOTAL   0.89   06/09 TO 06/10

SNOWFALL (INCHES)
RECORDS
 TOTAL          62.2   1916
TOTALS           3.2               12.7    -9.5
DAYS >= TRACE     16               11.0     5.0
DAYS >= 1.0        2                4.2    -2.2
GREATEST
 24 HR TOTAL     0.0

DEGREE DAYS
HEATING TOTAL   4596               4980    -384
COOLING TOTAL   1321                913     408

FREEZE DATES
RECORD
 EARLIEST     09/17/1965
 LATEST       05/12/1985
EARLIEST                        10/27
LATEST                          04/20
................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    40/180    DATE  05/07
HIGHEST GUST SPEED/DIRECTION    50/180    DATE  05/07

SKY COVER
AVERAGE SKY COVER           0.38

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             18     MIXED PRECIP               2
HEAVY RAIN                7     RAIN                      27
LIGHT RAIN              127     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW               17     SLEET                      1
FOG                      76     FOG W/VIS <= 1/4 MILE     24
HAZE                     49

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

$$