814
CXUS46 KOTX 040248
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
748 PM PDT SAT MAY 03 2025

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   04/28/1939
 LOW              20   04/19/1966
HIGHEST           80   04/25         MM      MM       76  04/02
                                                          04/13
LOWEST            32   04/01         MM      MM       33  04/18
                                                          04/19
AVG. MAXIMUM    65.7               62.3     3.4     63.9
AVG. MINIMUM    40.7               40.7    -0.0     41.4
MEAN            53.2               51.5     1.7     52.6
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                2.4    -1.4        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.29   1978
 MINIMUM        0.05   2021
TOTALS          0.58               1.44   -0.86     1.30
DAILY AVG.      0.02               0.05   -0.03     0.04
DAYS >= .01        6               11.3    -5.3       13
DAYS >= .10        1                4.5    -3.5        6
DAYS >= .50        0                0.3    -0.3        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.38   04/07 TO 04/07               0.57

SNOWFALL (INCHES)
RECORDS
 TOTAL           1.1   1972
TOTALS           0.0                0.0     0.0        T
SINCE 7/1       11.6               12.7    -1.1       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                  MM

DEGREE DAYS
HEATING TOTAL    347                407     -60      365
 SINCE 7/1      4391               4732    -341       MM
COOLING TOTAL      0                  2      -2        0
 SINCE 1/1         1                  2      -1       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
HIGHEST WIND SPEED/DIRECTION    25/300    DATE  04/10
HIGHEST GUST SPEED/DIRECTION    36/290    DATE  04/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.27
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     56

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

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

$$