Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
000 CXUS46 KOTX 011143 CLMLWS CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 443 AM PDT THU JUN 01 2023 ................................... ...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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 104 05/28/1934 LOW 23 05/01/1954 HIGHEST 95 05/20 MM MM 81 05/26 LOWEST 43 05/07 MM MM 36 05/10 05/10 AVG. MAXIMUM 79.6 72.0 7.6 66.0 AVG. MINIMUM 53.6 48.1 5.5 46.3 MEAN 66.6 60.0 6.6 56.2 DAYS MAX >= 90 5 1.0 4.0 0 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 3.78 1978 MINIMUM T 1924 TOTALS 0.71 1.69 -0.98 1.91 DAILY AVG. 0.02 0.05 -0.03 0.06 DAYS >= .01 9 10.6 -1.6 15 DAYS >= .10 1 5.6 -4.6 7 DAYS >= .50 0 0.6 -0.6 1 DAYS >= 1.00 0 0.1 -0.1 0 GREATEST 24 HR. TOTAL 0.44 05/04 TO 05/05 0.54 SNOWFALL (INCHES) RECORDS TOTAL 0.3 1916 TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 11.9 12.7 -0.8 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0.0 0.0 MM GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL MM 0.0 DEGREE DAYS HEATING TOTAL 66 187 -121 272 SINCE 7/1 4885 4921 -36 MM COOLING TOTAL 119 34 85 6 SINCE 1/1 130 36 94 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.4 HIGHEST WIND SPEED/DIRECTION 40/180 DATE 05/07 HIGHEST GUST SPEED/DIRECTION 50/180 DATE 05/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.23 NUMBER OF DAYS FAIR 21 NUMBER OF DAYS PC 8 NUMBER OF DAYS CLOUDY 2 AVERAGE RH (PERCENT) 53 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 5 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 2 LIGHT RAIN 12 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 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. MAY 2023 BROUGHT WARMER THAN NORMAL TEMPERATURES AND MAINLY BELOW NORMAL PRECIPITATION TO SOUTHEAST WASHINGTON INTO THE SOUTH IDAHO PANHANDLE. THERE WERE SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS DURING THE MONTH. ON THE 3RD A SEVERE THUNDERSTORM NEAR HARVARD BROUGHT A WIND GUST OF 69 MPH. ON THE 5TH HEAVY RAIN FROM THUNDERSTORMS LED TO SEVERE DAMAGE TO EAGLE CREEK ROAD IN NEZ PERCE COUNTY NINE MILES SOUTH-SOUTHEAST OF WAHA. ON THE 16TH AND 21ST STRONG THUNDERSTORMS PRODUCED FREQUENT LIGHTNING AND HEAVY RAIN. ON THE 16TH SAND ROAD NEAR MOSCOW WAS WASHED OUT. ON THE 21ST A SPOTTER NEAR ASOTIN RECORDED 0.42 INCHES OF RAIN IN 10-15 MINUTES. THE OTHER STORY DURING THE MONTH WAS THE WARM TEMPERATURES. VERY WARM CONDITIONS OCCURRED DURING THE FIRST THREE WEEKS WITH SEVERAL DAYS IN THE 80S TO LOW 90S IN LEWISTON. ON THE 19TH AND 20TH LEWISTON REACHED 92F AND 95F RESPECTIVELY, BOTH OF WHICH BROKE RECORDS FOR THE DATE. $$