Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
859 CXUS56 KOTX 090018 CLMGEG CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 518 PM PDT TUE OCT 08 2024 ................................... ...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 ................................................................ TEMPERATURE (F) RECORD HIGH 98 09/18/1938 09/03/1988 LOW 22 09/23/2000 09/24/1926 HIGHEST 97 09/01 MM MM 88 09/16 LOWEST 35 09/30 MM MM 39 09/29 AVG. MAXIMUM 79.5 73.6 5.9 72.7 AVG. MINIMUM 53.9 48.6 5.3 51.1 MEAN 66.7 61.1 5.6 61.9 DAYS MAX >= 90 5 1.4 3.6 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.4 -0.4 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.58 1927 MINIMUM T 2012 TOTALS 0.04 0.58 -0.54 0.43 DAILY AVG. 0.00 0.02 -0.02 0.01 DAYS >= .01 2 4.7 -2.7 9 DAYS >= .10 0 1.8 -1.8 1 DAYS >= .50 0 0.2 -0.2 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.03 09/14 TO 09/14 0.21 SNOWFALL (INCHES) RECORDS TOTAL 3.3 2019 TOTALS 0.0 0.1 -0.1 0.0 SINCE 7/1 0.0 0.1 -0.1 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0.1 -0.1 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL MM MM DEGREE DAYS HEATING TOTAL 69 162 -93 134 SINCE 7/1 89 216 -127 MM COOLING TOTAL 128 45 83 46 SINCE 1/1 871 514 357 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.7 HIGHEST WIND SPEED/DIRECTION 43/250 DATE 09/25 HIGHEST GUST SPEED/DIRECTION 61/250 DATE 09/25 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.44 NUMBER OF DAYS FAIR 13 NUMBER OF DAYS PC 14 NUMBER OF DAYS CLOUDY 3 AVERAGE RH (PERCENT) 50 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 8 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. $$ SEPTEMBER 2024 BROUGHT WARMER AND DRIER THAN NORMAL CONDITIONS TO NORTHEAST WASHINGTON INTO THE NORTH IDAHO PANHANDLE. THE MONTH STARTED OFF VERY WARM WITH HIGH TEMPERATURES IN THE 80S AND 90S THROUGH THE 9TH. THE 10TH THROUGH THE 21ST BROUGHT MORE SEASONAL WEATHER WITH LIGHT PRECIPITATION AT TIMES. THE 25TH BROUGHT A STRONG COLD FRONT PASSAGE DELIVERED HIGH WINDS, SIGNIFICANT AMOUNTS OF BLOWING DUST, AND SEVERE THUNDERSTORMS. THE STORMS PRODUCED WIND GUSTS AS HIGH AS 60-70 MPH INCLUDING A 65 MPH WIND GUSTS ON FIVE MILE IN NORTH SPOKANE. THE WINDS KNOCKED DOWNED SEVERAL TREES FROM NORTH SPOKANE THROUGH ELK, NEWPORT, SANDPOINT, AND BONNERS FERRY. IN ADDITION, THE WINDS PICKED UP SIGNIFICANT AMOUNTS OF BLOWING DUST ON THE WEST PLAINS WITH VISIBILITY BRIEFLY NEAR ZERO IN AIRWAY HEIGHTS. THE STORMS KNOCKED OUT POWER TO AROUND 40,000 CUSTOMERS ACROSS NORTHEAST WASHINGTON INTO THE IDAHO PANHANDLE. ANOTHER COLD FRONT ON THE 29TH PRODUCED WEST WINDS GUSTING BETWEEN 40 AND 45 MPH WHICH CREATED ANOTHER DUST STORM WITH VISIBILITY REDUCTIONS OF A HALF MILE OR LESS TO RITZVILLE, LIND, OAKESDALE, STEPTOE, AND THE COMMUNITY OF PALOUSE. RITZVILLE WAS ONE OF THE HARDER HIT AREAS WITH ZERO VISIBILITY, WITH CARS PULLING OFF THE ROAD. SPOKANE AIRPORT TIED A RECORD HIGH TEMPERATURE OF 94 DEGREES ON THE 6TH.