Climatological Report (Annual)
Issued by NWS Spokane, WA

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000
CXUS55 KOTX 042306 CCA
CLALWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
1210 PM PST TUE JAN 3 2017

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             117   07/27/1939
 LOW              -23   12/13/1919
HIGHEST           102   07/29
LOWEST              0   12/18
                        12/17
AVG. MAXIMUM     65.4              63.5     1.9
AVG. MINIMUM     44.4              42.5     1.9
MEAN             54.9              53.0     1.9
DAYS MAX >= 90     43              40.1     2.9
DAYS MAX <= 32     14              12.7     1.3
DAYS MIN <= 32     64              75.9   -11.9
DAYS MIN <= 0       2               0.7     1.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        21.76   1884
 MINIMUM         7.73   2007
TOTALS          15.07             12.31    2.76
DAILY AVG.       0.04              0.03    0.01
DAYS >= .01       127             102.8    24.2
DAYS >= .10        53              39.7    13.3
DAYS >= .50         4               3.1     0.9
DAYS >= 1.00        0               0.2    -0.2
GREATEST
 24 HR. TOTAL    1.02   MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           62.2   1916
TOTALS           20.4              10.5     9.9
DAYS >= TRACE      26              10.6    15.4
DAYS >= 1.0         7               3.9     3.1
GREATEST
 24 HR TOTAL      5.0   MM

DEGREE_DAYS
HEATING TOTAL    4460              5167    -707
COOLING TOTAL     863               807      56

FREEZE DATES
RECORD
 EARLIEST     09/17/1965
 LATEST       05/12/1985
EARLIEST                        10/24
LATEST                          04/07
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
HIGHEST WIND SPEED/DIRECTION    41/180    DATE  12/19
HIGHEST GUST SPEED/DIRECTION    54/180    DATE  12/19

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             16     MIXED PRECIP               0
HEAVY RAIN               11     RAIN                      30
LIGHT RAIN              134     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW               24     SLEET                      0
FOG                      85     FOG W/VIS <= 1/4 MILE     26
HAZE                     21

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

$$



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