Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
000 CXUS46 KOTX 011301 CLMLWS CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 601 AM PDT SUN OCT 01 2023 ................................... ...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 108 09/06/1944 LOW 27 09/24/1926 HIGHEST 97 09/16 MM MM 102 09/02 LOWEST 46 09/20 MM MM 48 09/17 09/29 AVG. MAXIMUM 78.5 79.5 -1.0 82.5 AVG. MINIMUM 54.2 52.3 1.9 55.3 MEAN 66.4 65.9 0.5 68.9 DAYS MAX >= 90 6 4.4 1.6 6 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 4.37 1940 MINIMUM T 2012 TOTALS 1.04 0.60 0.44 1.38 DAILY AVG. 0.03 0.02 0.01 0.05 DAYS >= .01 10 4.7 5.3 7 DAYS >= .10 4 1.8 2.2 3 DAYS >= .50 0 0.2 -0.2 2 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.49 09/20 TO 09/21 0.62 SNOWFALL (INCHES) RECORDS TOTAL T 1926 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 82 76 6 15 SINCE 7/1 83 88 -5 MM COOLING TOTAL 128 102 26 138 SINCE 1/1 1312 908 404 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 4.2 HIGHEST WIND SPEED/DIRECTION 29/280 DATE 09/07 HIGHEST GUST SPEED/DIRECTION 38/280 DATE 09/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.28 NUMBER OF DAYS FAIR 19 NUMBER OF DAYS PC 6 NUMBER OF DAYS CLOUDY 5 AVERAGE RH (PERCENT) 53 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 2 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 4 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 2023 BROUGHT NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION TO SOUTHEAST WASHINGTON AND THE LEWISTON AREA WHILE PRECIPITATION WAS BELOW NORMAL IN THE SOUTH IDAHO PANHANDLE. THERE WRE JUST A COUPLE SIGNIFICANT WEATHER EVENTS DURING THE MONTH. THE FIRST WAS SCATTERED THUNDERSTORMS ON THE 7TH WHICH TRACKED FROM THE BLUE MOUNTAINS INTO THE PALOUSE. LEWISTON RECORDED A WIND GUST OF 38 MPH. SECOND WAS ABNORMALLY WARM TEMPERATURES FROM THE 15TH THROUGH THE 17TH WITH LEWISTON WARMING INTO THE LOW TO MID 90S FROM THE 15TH THROUGH THE 17TH. THE HEAT PEAKED ON THE 16TH WITH A HIGH TEMPERATURE OF 97F, WHICH TIED A RECORD FOR THE DATE.