Climatological Report (Annual)
Issued by NWS Spokane, WA

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326
CXUS56 KOTX 011859
CLALWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1056 AM PST WED JAN 01 2025

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            117   07/27/1939
 LOW             -23   12/13/1919
HIGHEST          111   07/21
                       08/02
LOWEST           -10   01/13
AVG. MAXIMUM    66.3               64.2     2.1
AVG. MINIMUM    45.2               43.3     1.9
MEAN            55.8               53.8     2.0
DAYS MAX >= 90    51               44.1     6.9
DAYS MAX <= 32     8               12.3    -4.3
DAYS MIN <= 32    53               79.8   -26.8
DAYS MIN <= 0      3                0.3     2.7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.76   1884
 MINIMUM        7.73   2007
TOTALS         11.29              12.87   -1.58
DAILY AVG.      0.03               0.04   -0.01
DAYS >= .01      111              106.2     4.8
DAYS >= .10       36               41.4    -5.4
DAYS >= .50        2                3.4    -1.4
DAYS >= 1.00       0                0.2    -0.2
GREATEST
 24 HR. TOTAL   0.66

SNOWFALL (INCHES)
RECORDS
 TOTAL          62.2   1916
TOTALS          12.8               12.7     0.1
DAYS >= TRACE     17               11.0     6.0
DAYS >= 1.0        4                4.2    -0.2
GREATEST
 24 HR TOTAL     0.5   02/26 TO 02/26

DEGREE DAYS
HEATING TOTAL   4508               4980    -472
COOLING TOTAL   1228                913     315

FREEZE DATES
RECORD
 EARLIEST     09/17/1965
 LATEST       05/12/1985
EARLIEST                        10/27
LATEST                          03/25
................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    36/270    DATE  06/03
HIGHEST GUST SPEED/DIRECTION    55/260    DATE  09/25

SKY COVER
AVERAGE SKY COVER           0.38

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                      24
LIGHT RAIN              161     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               15     SLEET                      0
FOG                      80     FOG W/VIS <= 1/4 MILE     22
HAZE                     49

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

$$