Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
000 CXUS46 KOTX 020114 CLMLWS CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 613 PM PDT FRI SEP 01 2023 ................................... ...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1881 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 115 08/04/1961 LOW 41 08/20/1945 08/24/1992 HIGHEST 109 08/15 MM MM 106 08/31 LOWEST 54 08/24 MM MM 55 08/28 08/31 AVG. MAXIMUM 90.6 90.1 0.5 95.6 AVG. MINIMUM 63.7 60.3 3.4 64.6 MEAN 77.2 75.2 2.0 80.1 DAYS MAX >= 90 16 16.9 -0.9 26 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 0.83 0.51 0.32 0.16 DAILY AVG. 0.03 0.02 0.01 0.01 DAYS >= .01 7 3.4 3.6 4 DAYS >= .10 3 1.3 1.7 1 DAYS >= .50 0 0.2 -0.2 0 DAYS >= 1.00 0 0.1 -0.1 0 GREATEST 24 HR. TOTAL 0.42 08/22 TO 08/22 0.13 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 MM 0.0 DEGREE DAYS HEATING TOTAL 1 6 -5 0 SINCE 7/1 1 7 -6 MM COOLING TOTAL 388 322 66 479 SINCE 1/1 1184 806 378 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 4.8 HIGHEST WIND SPEED/DIRECTION 30/150 DATE 08/26 HIGHEST GUST SPEED/DIRECTION 37/300 DATE 08/18 37/150 08/26 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.20 NUMBER OF DAYS FAIR 25 NUMBER OF DAYS PC 3 NUMBER OF DAYS CLOUDY 3 AVERAGE RH (PERCENT) 43 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 1 LIGHT RAIN 7 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 0 HAZE 13 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ AUGUST 2023 BROUGHT WARMER AND WETTER THAN NORMAL TEMPERATURES ACROSS SOUTHEAST WASHINGTON INTO THE SOUTH IDAHO PANHANDLE. THE FIRST HALF OF THE MONTH STARTED OFF QUIET AS THUNDERSTORMS ACTIVITY MISSED THE REGION TO BOTH THE NORTH AND SOUTH. THEN SEVERAL SIGNIFICANT WEATHER EVENTS OCCURRED, STARTING WITH THE HOTTEST DAYS OF THE SUMMER FROM THE 14TH THROUGH THE 17TH. HIGH TEMPERATURES IN LEWISTON EACH DAY RANGED FROM 105 TO 109F. KAMIAH WAS HOTTEST LOCATION REACHING 111F. THEN ON THE 18TH A STRONG DRY COLD FRONT LED TO RAPID FIRE SPREAD ON THE WINOWA FIRE ON THE PALOUSE, BURNING 2525 ACRES. ONE PRIMARY STRUCTURE AND 24 OUTBUILDINGS WERE LOST IN THE FIRE. RELATIVE HUMIDITY WAS EXCEPTIONALLY LOW...DROPPING TO BETWEEN 5-10 PERCENT WITH WEST WINDS GUSTING TO AROUND 35 MPH. SIMILAR CONDITIONS IN THE SPOKANE AREA LED TO TWO LARGE FIRES WHICH DESTROYED HUNDREDS OF HOMES AROUND MEDICAL LAKE, SILVER LAKE, AND ELK. BEHIND THE FRONT NORTH WINDS BROUGHT IN SMOKE FROM CANADA AS WELL AS LOCAL FIRES. AIR QUALITY REACHED UNHEALTHY TO VERY UNHEALTHY LEVELS. THEN ON THE 22ND MUCH NEEDED RAIN FELL OVER THE REGION. WIDESPREAD RAIN AMOUNTS OF 0.25-0.50 INCHES WERE OBSERVED WITH LOCALLY HIGHER AMOUNTS ESPECIALLY IN THE MOUNTAINS. ALDER RIDGE IN THE BLUE MOUNTAINS RECEIVED 1.37 INCHES. ON THE 29TH, ABUNDANT LIGHTNING STRUCK THE REGION AS A WEATHER SYSTEM PASSED THROUGH. MOST OF THE STORMS WERE QUICK MOVING ONLY PUTTING DOWN LIGHT TO MODERATE RAIN. HOWEVER STEADY RAIN PERSISTED INTO THE 30TH OVER THE IDAHO PANHANDLE WITH KELLOGG RECEIVING 1.58 INCHES. SEVERAL RECORDS WERE BROKEN OR TIED DURING THE MONTH AT THE LEWISTON AIRPORT. THIS INCLUDES A RECORD HIGH OF 109F ON THE 15TH WHICH BROKE A RECORD FOR THE DATE. A RECORD HIGH OF 108F WAS TIED ON THE 16TH. THEN ON AUGUST 21ST THE 0.18 INCHES OF PRECIPITATION THAT FELL TIED A RECORD FOR THE DATE.