Climatological Report (Monthly)
Issued by NWS Spokane, WA

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786
CXUS46 KOTX 011245
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
545 AM PDT TUE JUL 01 2025

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JUNE 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            115   06/29/2021
 LOW              34   06/01/1951
HIGHEST          101   06/09         MM      MM       97  06/22
LOWEST            48   06/03         MM      MM       46  06/16
AVG. MAXIMUM    85.0               79.0     6.0     82.6
AVG. MINIMUM    57.2               54.0     3.2     55.3
MEAN            71.1               66.5     4.6     68.9
DAYS MAX >= 90     9                4.1     4.9       MM
DAYS MAX <= 32     0                0.0     0.0       MM
DAYS MIN <= 32     0                0.0     0.0       MM
DAYS MIN <= 0      0                0.0     0.0       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.67   1884
 MINIMUM        0.01   1883
TOTALS          0.08               1.25   -1.17     0.66
DAILY AVG.      0.00               0.04   -0.04     0.02
DAYS >= .01        2                8.9    -6.9       MM
DAYS >= .10        0                4.2    -4.2       MM
DAYS >= .50        0                0.4    -0.4       MM
DAYS >= 1.00       0                0.0     0.0       MM
GREATEST
 24 HR. TOTAL   0.05   06/22 TO 06/22               0.45

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.1   1911
TOTALS           0.0                0.0     0.0      0.0
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      MM                                  MM

DEGREE DAYS
HEATING TOTAL     15                 61     -46       28
 SINCE 7/1      4540               4981    -441       MM
COOLING TOTAL    207                107     100      153
 SINCE 1/1       259                143     116       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
HIGHEST WIND SPEED/DIRECTION    25/310    DATE  06/18
HIGHEST GUST SPEED/DIRECTION    35/290    DATE  06/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.16
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     42

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$

JUNE 2025 FINISHED WITH ABOVE NORMAL TEMPERATURES AND BELOW NORMAL
PRECIPITATION FOR SOUTHEAST WASHINGTON INTO THE SOUTH IDAHO
PANHANDLE. FOR THE LEWISTON AND PULLMAN AIRPORTS THE THIRD DRIEST
JUNE ON RECORD WAS RECORDED WITH 0.08 AND 0.10 INCHES OF PRECIPITATION
RESPECTIVELY.

THE FIRST FEW DAYS OF JUNE STARTED WITH NEAR NORMAL TEMPERATURES
WITH HIGH TEMPERATURES IN THE MID TO UPPER 70S IN LEWISTON BEFORE
TEMPERATURES SURGED INTO THE 90S TO NEAR THE CENTURY MARK FROM THE
7TH THROUGH THE 10TH. TEMPERATURES THEN DROPPED BACK DOWN TO
SLIGHTLY ABOVE SEASONAL NORMALS FOR A WEEK BEFORE A LARGE LOW
PRESSURE SYSTEM TRACKING THROUGH THE REGION BROUGHT A BRIEF DOSE
OF COOLER WEATHER WITH HIGHS ONLY IN THE UPPER 60S TO LOW 70S ON THE
20TH THROUGH THE 22ND.  WETTING RAINS FELL ACROSS THE CENTRAL
PANHANDLE MOUNTAINS DURING THE EVENING OF THE 22ND WITH A QUARTER TO
HALF INCH OF RAIN.  BUT THE THREE DAY EVENT SPARED MUCH OF SOUTHEAST
WASHINGTON AND THE LEWISTON AREA FROM SIGNIFICANT RAIN, WITH LESS
THAN A TENTH OF AN INCH.

ONE DAILY RECORD WAS TIED DURING THE MONTH AT THE LEWISTON AIRPORT,
WITH A HIGH TEMPERATURE OF 101F ON THE 9TH.