Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
566
CXUS46 KOTX 011340
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
640 AM PDT SUN SEP 01 2024
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 115 08/04/1961
LOW 41 08/20/1945
08/24/1992
HIGHEST 111 08/02 MM MM 109 08/15
LOWEST 50 08/29 MM MM 54 08/24
08/31
AVG. MAXIMUM 90.8 90.1 0.7 90.6
AVG. MINIMUM MM 60.3 MM 63.7
MEAN 76.3 75.2 1.1 77.2
DAYS MAX >= 90 18 16.9 1.1 16
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.96 1989
MINIMUM 0.00 1917
TOTALS 0.44 0.51 -0.07 0.83
DAILY AVG. 0.01 0.02 -0.01 0.03
DAYS >= .01 4 3.4 0.6 7
DAYS >= .10 3 1.3 1.7 3
DAYS >= .50 0 0.2 -0.2 0
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.18 08/23 TO 08/23 0.42
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 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 2 6 -4 1
SINCE 7/1 2 7 -5 MM
COOLING TOTAL 360 322 38 388
SINCE 1/1 1044 806 238 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.4
HIGHEST WIND SPEED/DIRECTION 32/240 DATE 08/23
32/300 08/27
HIGHEST GUST SPEED/DIRECTION 46/300 DATE 08/27
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.08
NUMBER OF DAYS FAIR 30
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 39
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 0 FOG W/VIS <= 1/4 MILE 0
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
AUGUST 2024 FINISHED WITH SLIGHTLY WARMER THAN NORMAL TEMPERATURES
WITH NEAR TO ABOVE NORMAL PRECIPITATION ACROSS SOUTHEAST WASHINGTON
INTO THE SOUTH IDAHO PANHANDLE. THE MONTH STARTED OFF HOT WITH
LEWISTON REACHING 111F DEGREES ON THE 2ND. THE HEAT GRADUALLY
SUBSIDED FOR THE REMAINDER OF THE MONTH WITH HIGH TEMPERATURES MOST
DAYS IN THE 80S AND 90S. ON THE 4TH SOME MUCH NEEDED RAIN FELL
ACROSS THE IDAHO PANHANDLE WITH A TENTH TO A QUARTER INCH.
STRATIFORM RAIN SE WASHINGTON INTO NORTH IDAHO. THIS WAS FOLLOWED ON
THE 5TH BY AM THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING WITH
LIMITED RAIN. ON THE 6TH ISOLATED THUNDERSTORMS HIT THE RITZVILLE
AND PALOUSE AREAS WITH NEW FIRE STARTS. A WEEK LATER ON THE MORNING
OF THE 13TH A LINE OF NOCTURNAL THUNDERSTORMS TRACKED FROM THE BLUE
MOUNTAINS INTO THE CENTRAL PANHANDLE MOUNTAINS. THEN ON THE 17TH
THUNDERSTORMS PRODUCED GUSTY OUTFLOW WINDS IN THE COLUMBIA BASIN
RESULTING IN BLOWING DUST. VISIBILITY BRIEFLY DROPPED TO NEAR ZERO
AROUND 7 MILES WEST OF RITZVILLE. ON THE 23RD THUNDERSTORMS
PRODUCED GUSTY OUTFLOW WINDS WITH 40-45 MPH WIND GUSTS IN THE LC
VALLEY AND PULLMAN AREA. FINALLY ON THE 27TH A STRONG COLD FRONT
PASSED THROUGH PRODUCING WINDY CONDITIONS. BLOWING DUST RESULTED
ACROSS THE COLUMBIA BASIN INTO THE PALOUSE. PEAK WIND GUSTS INCLUDE
46 MPH LEWISTON AIRPORT, 45 MPH SILCOTT ISLAND, AND 39 MPH UNIONTOWN.
LEWISTON SET TWO RECORDS DURING THE MONTH. THE HIGH TEMPERATURE
READING OF 111F ON THE 2ND SET A RECORD FOR THE DATE. ON THE 5TH A
DAILY PRECIPITATION RECORD WAS BROKEN WITH 0.11 INCHES.