CXUS46 KOTX 011630 CLMLWS CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 930 AM PDT WED APR 01 2026 ................................... ...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 2026... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1881 TO 2026 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 80 03/30/1923 LOW 2 03/05/1955 HIGHEST 69 03/20 MM MM 80 03/26 LOWEST 29 03/10 MM MM 30 03/06 03/19 AVG. MAXIMUM 55.8 55.1 0.7 58.0 AVG. MINIMUM 37.9 35.7 2.2 39.2 MEAN 46.9 45.4 1.5 48.6 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 0.2 -0.2 0 DAYS MIN <= 32 7 9.1 -2.1 7 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 4.07 1931 MINIMUM 0.25 1969 TOTALS 2.81 1.30 1.51 1.18 DAILY AVG. 0.09 0.04 0.05 0.04 DAYS >= .01 9 11.7 -2.7 12 DAYS >= .10 5 4.0 1.0 5 DAYS >= .50 3 0.3 2.7 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 1.03 03/12 TO 03/13 0.33 SNOWFALL (INCHES) RECORDS TOTAL 9.7 1955 TOTALS 0.0 0.8 -0.8 0.0 SINCE 7/1 0.1 12.7 -12.6 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0.2 -0.2 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL MM MM DEGREE DAYS HEATING TOTAL 553 608 -55 503 SINCE 7/1 3679 4325 -646 MM COOLING TOTAL 0 0 0 1 SINCE 1/1 0 0 0 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.7 HIGHEST WIND SPEED/DIRECTION 40/220 DATE 03/12 HIGHEST GUST SPEED/DIRECTION 55/230 DATE 03/12 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.48 NUMBER OF DAYS FAIR 12 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 9 AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 5 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 5 FOG W/VIS <= 1/4 MILE 2 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ MARCH 2026 BROUGHT SLIGHTLY WARMER THAN NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION TO SOUTHEAST WASHINGTON INTO THE SOUTH IDAHO PANHANDLE. IT WAS THE 6TH WETTEST MARCH ON RECORD IN LEWISTON WITH 2.81 INCHES. THE MONTH BROUGHT SEVERAL WEATHER CHANGES AS IS TYPICAL FOR THE INLAND NW START OF SPRING. ON THE 8TH A STRONG COLD FRONT PASSAGE BROUGHT WINDY CONDITIONS WITH A PEAK WIND GUST OF 54 MPH AT THE PULLMAN AIRPORT. THIS ALSO BROUGHT A SIGNIFICANT TEMPERATURE DROP WITH HIGHS IN THE MID 60S ON THE 8TH DROPPING INTO THE MID 40S ON THE 9TH IN LEWISTON. BUT THE REAL WHOPPER OF THE MONTH CAME WITH A STRENGTHENING WEATHER SYSTEM AS IT PASSED THROUGH THE REGION LATE ON THE 11TH INTO THE 12TH. A WIND STORM RESULTED WITH NUMEROUS POWER OUTAGES, AND DOWNED TREES. PEAK WIND GUSTS INCLUDE 68 MPH SHIRROD HILL, 67 MPH ALDER RIDGE, 64 MPH PULLMAN AIRPORT, 58 MPH MISSION CREEK, AND 55 MPH AT LEWISTON AIRPORT. FOLLOWING THE WIND STORM, A STALLED BOUNDARY BROUGHT AN ABUNDANCE OF PRECIPITATION INTO THE MORNING OF THE 14TH. THE PULLMAN AND MOSCOW AREA WAS THE WARMER SIDE OF THIS BOUNDARY RECEIVING MOSTLY RAIN, WITH SMALL STREAM FLOODING OCCURRING IN THE AREA. PARADISE CREEK REACHED IT'S HIGHEST LEVEL ON RECORD AT 11.54 FEET FLOODING SEVERAL ROADS, WITH A SECTION OF HIGHWAY 95 REPORTING STANDING WATER. FLOODING ALSO OCCURRED ALONG THE POTLATCH RIVER NEAR JULIETTA WITH A DISASTER DECLARATION FOR THE CITY PARK. IN PULLMAN FLOODING OCCURRED AROUND GRANDE AVENUE AND MAIN STREET, WITH WATER FLOODING A BUSINESS. ON US12 LANDSLIDES THREE LANDSLIDES OCCURRED NEAR THE TOWNS OF JULIAETTA AND LENORE. ON SR194 ABOUT FIVE MILES WEST OF PULLMAN A WASHOUT CAUSED BY A FAILED CULVERT REDUCED TRAFFIC TO ONE LANE. AREAS NORTH OF PULLMAN AND MOSCOW RECEIVED MORE SIGNIFICANT SNOW, WITH 22 INCHES IN MULLAN, 13 INCHES AVERY, 11 INCHES NEAR SAINT MARIES AND 4 INCHES IN ROSALIA. ONE RECORD WAS DURING THE MONTH AT THE LEWISTON AIRPORT WHEN 0.66 INCHES OF PRECIPITATION FELL ON THE 13TH.