Climatological Report (Annual)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
000 CXUS56 KPQR 021856 CLAPDX ANNUAL CLIMATE REPORT NATIONAL WEATHER SERVICE PORTLAND OR 1055 AM PST SUN JAN 2 2022 ...PORTLAND 2021 WEATHER IN REVIEW... ================================================================= 2021 NOTABLE RECORDS... 2021 NOTABLE WEATHER EVENTS... *** 6TH WARMEST JANUARY *** ICE/SNOW OF MID-FEBRUARY *** 5TH WARMEST APRIL *** MAJOR HEAT WAVE OF LATE JUNE *** THE DRIEST APRIL *** HEAT WAVE OF MID-AUGUST *** 6TH DRIEST MAY *** WARMEST SUMMER ON RECORD *** THE WARMEST JUNE *** HEAVY RAIN MID-NOVEMBER *** 5TH WARMEST JULY *** SNOW IN LATE DECEMBER *** 4TH WARMEST AUGUST *** 7TH WETTEST SEPTEMBER *** 3RD WARMEST NOVEMBER *** YEAR WITH THE MOST DAYS WITH HIGH TEMPERATURE OF 80+ DEG *** 2ND WARMEST YEAR ON RECORD MONTHLY WEATHER RECAPS... JANUARY...2021 STARTED ON A MILD AND WET NOTE. NORMALLY, PORTLAND WOULD SEE 8 NIGHTS AT/OR BELOW FREEZING. BUT, ONLY IN 3 THIS YEAR (19/20TH AND 23RD). RAINFALL OF 1.94 INCHES ON THE 12TH MADE FOR THE 8TH WETTEST JANUARY DAY ON RECORD SINCE 1941. IN FACT, RAINFALL FROM THE 11TH TO 12TH WAS 2.53 INCHES AT THE AIRPORT, WITH REPORTS OF 3 OR MORE INCHES AROUND THE METRO. HEAVY RAIN OVER THE COLUMBIA GORGE DURING THAT TIME LED TO A DEBRIS FLOW NEAR DODSON, CLOSING I-84 FOR A TIME. JAN 2021 WAS THE 6TH WARMEST JAN ON RECORD. FEBRUARY...MILD AND WET WEATHER OF JANUARY CONTINUED INTO FEBRUARY. THEN, A BREAK IN THE WEATHER FROM THE 7TH TO 10TH. AFTERWARDS, COLD OFFSHORE FLOW ARRIVED, WITH FRIGID EAST WINDS GUSTING 40 TO 50 MPH ACROSS THE METRO AREA FROM THE 11TH TO 14TH. DURING THAT TIME, THERE WAS PLENTY OF PRECIPITATION, WITH HEAVY ICE AND SLEET ACCUMULATIONS, ALONG WITH HEAVY SNOW. TO SOUTH SIDE OF THE METRO, PRECIPITATION STAYED AS FREEZING RAIN, WITH ICE ACCUMULATIONS OF 1 TO 3 INCHES. WHILE, MORE SNOW THAN ICE FELL FROM THE COLUMBIA RIVER NORTHWARD, WITH 10 TO 15 INCHES OF SNOW REPORTED FROM TROUTDALE NORTHWARD ACROSS CLARK COUNTY. INTERSTATE 84 WAS CLOSED FOR DAYS, AS 12 TO 24 INCHES OF SNOW ACCUMULATED IN THE GORGE BETWEEN TROUTDALE AND HOOD RIVER. THE 6.1 INCHES OF SNOW AT PORTLAND AIRPORT ON THE 12TH TIED 12 FEB 1993 AS THE SNOWIEST DAY IN FEBRUARY ON RECORD. ALSO, THE TOTAL SNOW (10.1 INCHES) OF FEB 2021 WAS SNOWIEST FEB SINCE FEB 1949, WHICH HAD 11.6 INCHES). THE SIGNIFICANT ICE ACCUMULATIONS ACROSS PORTLAND AND TO THE SOUTH CREATED EXTENSIVE DAMAGE TO TREES AND POWER LINES, WITH POWER OUTAGES LASTING FOR SEVERAL DAYS, AND UP TO A FEW WEEKS IN HEAVY HIT AREAS SUCH AS OREGON CITY WESTWARD TO TUALATIN. MILD WEATHER RETURNED TO THE REGION ON THE 15TH, AND LASTED THROUGH THE END OF FEBRUARY. MARCH...CONSIDERING THE WILD WEATHER OF FEBUARY, MARCH ARRIVED LIKE A LAMB, WITH MILD DRY WEATHER. BUT, IT ALSO ENDED LIKE A LAMB, WITH TEMPERATURES AROUND 70 DEG. OVERALL, WEATHER WAS RATHER TYPICAL FOR MARCH, COMPLETE WITH OCCASIONAL SHOWERS. APRIL...THIS WAS A WELCOME BREAK FROM NORMALLY WET AND COOLISH APRILS, AS HIGH PRESSURE DOMINATED THE WEATHER PATTERN. THIS BLOCKED INCOMING WEATHER FRONTS, ALLOWING FOR DRIER AND WARMER WEATHER. AFTERNOON TEMPERATURES WERE OFTEN IN THE 60S AND 70S. THE WARMEST DAYS WERE 17TH/18TH, WHEN TEMPERATURES REACHED INTO THE LOWER TO MIDDLE 80S. BUT, IT WAS A MUCH DRIER THAN NORMAL APRIL, WITH TOTAL RAINFALL OF 0.39 INCH (2.34 INCHES BELOW NORMAL). APRIL 2021 WAS THE 5TH WARMEST APRIL AND THE DRIEST ON RECORD (SINCE 1941). MAY...THE DRY STREAK CONTINUED, WITH JUST 6 DAYS WITH MEASUREABLE (0.01 INCH OR MORE) RAINFALL IN MAY. TOTAL RAINFALL FOR MAY WAS 0.58 INCH, NEAR 2 INCHES BELOW NORMAL. THIS MADE MAY 2021 THE 6TH DRIEST MAY FOR PORTLAND. GUSTY SOUTH WINDS OF 35 TO 40 MPH ASSOCIATED WITH A FAST MOVING FRONT ON THE 27TH CAUSED SOME DAMAGE TO TREES OVER THE WEST HILLS AND METRO AREA. TEMPERATURES TOOK MORE OF ROLLERCOAST RIDE IN MAY, BUT THE MONTHLY AVERAGE ENDED BEING ONLY A TAD ABOVE NORMAL. JUNE...JUNE STARTED WARM AND DRY, WITH TEMPERATURES IN THE 90S ON THE 1ST AND 2ND. THEN, WEATHER RESEMBLED THAT MORE LIKE ANY OTHER JUNE, WITH CLOUDS, RAIN, THE TYPICAL TEMPERATURE YOYO, FROM MIDDLE 60S TO LOWER 70S. THEN, HIGH PRESSURE BUILT OVER THE REGION, BRINGING DRY AND WARMER WEATHER. TEMPERATURES ROSE INTO THE 90S BY THE 20TH, WITH 97 DEG ON THE 21ST. HIGH PRESSURE WEAKENED A BIT, WITH TEMPERATURES BACK TO THE LOWER 80S. BUT, THAT HIGH PRESSURE DOME PUSHED BACK OVER THE PACIFIC NW ON THE 25TH, BRINGING VERY HOT WEATHER. TEMPERATURES ROSE TO 108 ON THE 26TH, BREAKING THE HOTTEST DAY EVER AT PORTLAND (PRIOR WAS 107 DEG IN 30 JUL 1965, AND 8TH AND 10TH OF AUG 1981). BUT, THAT WAS BROKEN AGAIN THE NEXT DAY WITH 112 DEG, THEN BROKEN AGAIN AT 116 DEG ON THE 28TH. WORST YET, THE OVERNIGHT TOOK MUCH LONGER TO COOL, BUT ONLY DOWN TO THE MID 70S ON MORNINGS OF THE 27TH AND 28TH. THESE WERE AMONG THE WARMEST OVERNIGHT LOWS EVER, WITH THE 75 DEG SURPASSING THE PRIOR WARMEST EVER (74 DEG ON 28TH JULY 2009). THE ELDERLY AND THE VERY YOUNG, ALONG WITH THOSE THAT HAD NO AIR CONDITIONING, SUFFERED DURING THIS HEAT WAVE. HUNDREDS SUFFERED FROM HEAT SICKNESS AND NEEDED TO BE HOSPITALIZED. THE HEAT BUCKLED ROADS, AND FORCED MASS TRANSIT TRAINS TO STOP. MANY BUSINESSES CLOSED 27-28TH, HOPING TO MINIMIZE HEAT STRESS ON CUSTOMERS/EMPLOYEES. JULY...WARM AND DRY WEATHER CONTINUED. PASSING SPRINKLES ON FIRST WERE THE ONLY DROPS OF RAIN IN JULY FOR PORTLAND. WHILE DRY JULYS ARE NOT ALL THAT UNCOMMON, JULY 2021 JOINED 2017, 2013, 2003, 1984, 1960, 1958, AND 1952 AS THE ONLY OTHER MONTHS WITH A TRACE RECORDED (ONLY 1967 HAD 0 RAINFALL). JULY ENDED AS THE 5TH WARMEST JULY. AUGUST...WHILE NOT AS WARM AS JULY OR LATE JUNE, IT STILL FELT RATHER WARM. ANOTHER ROUND OF HOT TEMPERATURES FROM THE 10TH TO 13TH, WITH 102 TO 103 ON 11TH/12TH. BUT, AFTER THAT HEAT WAVE ENDED ON THE 15TH, TEMPERATURES COOLED BACK TO THE 70S AND 80S FOR REST OF AUGUST. EVEN SO, IT WAS THE 4TH WARMEST AUGUST ON RECORD. SEPTEMBER...WAS A MILD MONTH, WITH TEMPERATURES CLOSER TO THAT EXPECTED FOR A SEPTEMBER. THOUGH FIRST HALF WAS DRY RAIN ARRIVED ON THE 17TH, WITH RATHER HEAVY RAIN ON THE 18TH AND 19TH. RAIN ON THE 18TH (1.31 INCHES) WAS THE 9TH WETTEST SEPTEMBER ON RECORD. AS SUMMER CLOSED ON THE 20TH, 2021 WOULD FINISH AS THE WARMEST SUMMER ON RECORD, SURPASSING PRIOR WARMEST 2015). OCTOBER...IT WAS AN OCTOBER THAT IS MORE EXPECTED, WITH COOL SWEATER WEATHER AND SOME RAIN FROM TIME TO TIME. WHILE THERE WER NOT BIG RAIN EVENTS, RAINFALL FOR OCTOBER ENDED JUST A WEE BIT ABOVE NORMAL. GUSTY OFFSHORE FLOW WITH EAST WINDS GUSTING 35 TO 45 MPH ON THE 30TH/31ST ENSURED A DRY BUT COOLISH HALLOWEEN. NOVEMBER...RAINS CONTINUED THROUGH THE MONTH, ALONG WITH MILD TEMPERATURES. AS IS THE CASE WITH MANY RAINY NOVEMBERS, CLOUDIER SKIES AND MILD TEMPERATURES OFTEN PREVENT THE TEMPERATURES FROM DROPPING BELOW FREEZING. COOLEST NIGHT IN NOV 2021 WAS ONLY 33 DEG ON THE 22ND. IN FACT, IT WAS THE 3RD WARMEST NOVEMBER ON RECORD. ON THE 11TH AND 12TH, A RATHER SLOW MOVING ATMOSPHERIC RIVER SHIFTED FROM SOUTHWARD ACROSS THE REGION. HEAVY RAIN FELL, WITH 2 TO 4 INCHES REPORTED AROUND THE METRO AREA. MINOR FLOODING WAS COMMON ALONG SMALLER STREAMS AS WELL AS AREAS WITH POOR DRAINAGE, SUCH AS LOW SPOTS WHERE STREET DRAINS WERE CLOGGED WITH TREE LEAVES. DECEMBER... MILD WEATHER OF LATE NOVEMBER EXTENDED INTO EARLY DAYS OF DECEMBER, WITH TEMPERATURES INTO THE LOWER 60S ON THE 1ST. BUT, RETURN TO ONSHORE FLOW AND ARRIVING FRONT ON THE 4TH BROUGHT MORE REALISTIC EARLY DECEMBER WEATHER, WITH RAIN AND TEMPERATURES IN THE 40S. BUT, COLDER TEMPERATURES ROLLED INTO THE REGION ON THE 25TH INTO THE 26TH, WITH SNOW. ACCUMULATIONS OF 1 TO 3 INCHES OF SNOW FELL ACROSS THE REGION ON THE 26TH, WITH ANOTHER 1 TO 2 INCHES EARLY ON THE 28TH. ANOTHER ROUND OF SNOW ARRIVED ON 29TH INTO EARLY 30TH. ============================================================== NEW RECORDS SET IN 2021 (PREVIOUS RECORD IN PARENTHESES) + INDICATES MOST RECENT OF MULTIPLE OCCURRENCES JANUARY... 2ND NEW. DAILY WARM LOW TEMP 48 ( 46 /1994 ) 12TH NEW. DAILY RAINFALL 1.94" (1.38"/1975 ) 13RD TIED. DAILY WARM HIGH TEMP 61 ( 61 /1991 ) **** 6TH WARMEST JANUARY ON RECORD (AVERAGE TEMP 44.8 DEG) FEBRUARY... 12TH TIED. DAILY COLD LOW TEMP 24 ( 24 /1948 ) 12TH NEW. DAILY COOL HIGH TEMP 30 ( 35 /1990 ) 12TH NEW. DAILY SNOWFALL 6.1" ( 5.2"/1990 ) THIS ALSO TIED 19TH FEB 1993 AS SNOWIEST FEB DAY 13TH NEW. DAILY COOL HIGH TEMP 30 ( 31 /1995 ) 13TH NEW. DAILY SNOWFALL 3.8" ( 1.4"/1986 ) 14TH NEW. DAILY COOL HIGH TEMP 32 ( 34 /1990 ) MARCH.... NO RECORDS SET/TIED. APRIL... 11TH NEW. DAILY COLD LOW TEMP 32 ( 33 /1991+) 17TH NEW. DAILY WARM HIGH TEMP 84 ( 81 /2016 ) **** 5TH WARMEST APRIL ON RECORD (AVERAGE TEMP 55.2 DEG) **** DRIEST APRIL ON RECORD, WITH TOTAL RAINFALL 0.39". PRIOR DRIEST APRIL WAS 1956, WITH 0.53 INCH. MAY... NO RECORDS SET/TIED. **** 6TH DRIEST MAY ON RECORD, WITH TOTAL RAINFALL 0.58 INCH. JUNE... 1ST NEW. DAILY WARM LOW TEMP 61 ( 60 /2006 ) 1ST NEW. DAILY WARM HIGH TEMP 95 ( 94 /1970 ) 2ND NEW. DAILY WARM LOW TEMP 65 ( 61 /2009 ) 21ST NEW. DAILY WARM LOW TEMP 65 ( 63 /1958+) 21ST NEW. DAILY WARM HIGH TEMP 97 ( 96 /1992 ) 22ND TIED. DAILY WARM LOW TEMP 63 ( 63 /1958 ) 25TH NEW. DAILY WARM LOW TEMP 65 ( 64 /1973 ) 26TH NEW. DAILY WARM LOW TEMP 70 ( 66 /1973+) 26TH NEW. DAILY WARM HIGH TEMP 108 ( 96 /1992 ) 27TH NEW. DAILY WARM LOW TEMP 73 ( 71 /2015 ) 27TH NEW. DAILY WARM HIGH TEMP 112 ( 96 /1992 ) 28TH NEW. DAILY WARM LOW TEMP 75 ( 69 /2015 ) 28TH NEW. DAILY WARM HIGH TEMP 116 ( 96 /1992 ) **** HIGH OF 116 IS HIGHEST TEMPERATURE EVER RECORDED AT PORTLAND AIRPORT. PRIOR TO 2021, THE HIGHEST WAS 107 DEG ON 30 JUL 1965, AND 8TH, 10TH OF AUG 1981. **** HIGHS ON 26TH, 27TH AND 28TH ARE THE 3 WARMEST DAYS FOR ALL-TIME AT PORTLAND AIRPORT. **** LOW OF 75 DEG ON THE 28TH WAS WARMEST LOW TEMPERATURE RECORDED AT PORTLAND AIRPORT. PREVIOUS RECORD WAS 74 DEG SET ON 28TH JULY 2009. **** JUNE 2021 IS THE WARMEST JUNE ON RECORD, WITH AVERAGE TEMP OF 70.7 DEG (PRIOR RECORD WAS 70.3 IN 2015). JULY... 30TH NEW. DAILY WARM LOW TEMP 69 ( 67 /2018+) 31ST NEW. DAILY WARM LOW TEMP 69 ( 65 /1948 ) **** 5TH WARMEST JULY ON RECORD (AVERAGE TEMP 73.0 DEG) AUGUST... 5TH NEW. DAILY WARM LOW TEMP 66 ( 65 /2019 ) 11TH TIED. DAILY WARM LOW TEMP 69 ( 69 /2014 ) 11TH TIED. DAILY WARM HIGH TEMP 102 ( 102 /1977 ) 12TH NEW. DAILY WARM LOW TEMP 70 ( 67 /2014 ) 13TH NEW. DAILY WARM LOW TEMP 71 ( 66 /2016 ) 14TH NEW. DAILY WARM LOW TEMP 68 ( 66 /1998 ) 23RD TIED. DAILY COLD LOW TEMP 48 ( 48 /1951 ) **** 4TH WARMEST JULY ON RECORD (AVERAGE TEMP 72.5 DEG) SEPTEMBER... 18TH NEW. DAILY RAINFALL 1.31" (0.97"/2010 ) 18TH IS THE 9TH WETTEST SEPTEMBER DAY ON RECORD. 19TH NEW. DAILY RAINFALL 1.14" (0.97"/1988+) OCTOBER... 12TH TIED. DAILY COLD LOW TEMP 38 ( 38 /2019 ) 13TH TIED. DAILY COOL HIGH TEMP 54 ( 54 /2009 ) NOVEMBER... 12TH NEW. DAILY RAINFALL 1.31" (0.94"/2008 ) 18TH IS THE 9TH WETTEST SEPTEMBER DAY ON RECORD. 14TH NEW. DAILY WARM LOW TEMP 60 ( 58 /2001 ) 15TH TIED. DAILY WARM HIGH TEMP 62 ( 62 /2001+) 27TH TIED. DAILY WARM HIGH TEMP 63 ( 63 /1947 ) 28TH NEW. DAILY WARM HIGH TEMP 63 ( 59 /1940 ) 29TH TIED. DAILY WARM HIGH TEMP 58 ( 58 /2008+) **** 3RD WARMEST NOVEMBER ON RECORD (AVERAGE TEMP 50.4 DEG) DECEMBER... 1ST NEW. DAILY WARM HIGH TEMP 63 ( 62 /1958 ) TIED 2 OTHER DAYS AS THE 6TH WARMEST DECEMBER DAY ON RECORD (WARMEST WAS 65 DEG IN 1993) 18TH NEW. DAILY RAINFALL 1.26" (1.01"/1941 ) 26TH NEW. DAILY SNOWFALL 0.7" ( 0.6"/1951 ) 27TH NEW. DAILY SNOWFALL 1.0" ( 0.7"/1968 ) FOR THE YEAR... MOST DAYS WITH HIGH TEMPERATURE OF 80+ DEG... 90 DAYS (PRIOR RECORD... 88 DAYS IN 2015) MOST DAYS WITH HIGH TEMPERATURE 100+ DEG... 5 DAYS (2021 TIED 1941 AND 1977 WITH 5 DAYS) MOST DAYS WITH LOW TEMPERATURE 60+ DEG... 55 DAYS (2021 TIED 2019 AND 2015 WITH 55 DAYS) 2ND WARMEST YEAR ON RECORD, WITH AVERAGE TEMP 56.6 DEG (RECORD WARMEST WAS 2015 WITH 57.4 DEG) ============================================================== 2021 PORTLAND MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS THIS SHOWS WHERE MONTH/YEAR RANKS IN PORTLANDS CLIMATE RECORD (OCT 1940 THROUGH 2021). RANKINGS APPLY TO ALL OF SAME MONTH, OR IN OTHER WORDS, WHERE JAN 2021 COMPARES TO ALL OTHER JAN. RANKINGS ARE 1 TO 80, WHERE 1 IS WARMEST OR WETTEST ON RECORD AND 80 IS DRIEST OR COLDEST ON RECORD. JA FE MA AP MA JU JL AU SE OC NO DE 2021 AVG T 6 59 43 5 16 1 5 4 12 31 3 41 2 PRECIP 22 40 75 81 76 46 73 70 7 24 28 28 45 MAX T 11 72 33 2 20 2 5 12 20 61 6 49 4 MIN T 6 33 49 32 19 1 4 2 13 14 3 33 3 ============================================================= 2021 PORTLAND AIRPORT TEMPERATURE DATA + BY DATE INDICATES LAST OF SEVERAL OCCURRENCES LISTED |--- AVERAGES ----| MEAN T DEPART| EXTREME TEMPS & DATE| MONTH |HIGHS LOWS MEAN| FROM NORMAL | HIGHEST LOWEST | -------------------------------------------------------------- JAN 49.9 39.6 44.8 +2.9 DEG 61 /13TH+ 27 /23RD FEB 47.2 36.6 41.9 -2.2 DEG 58 /28TH 24 /13TH+ MAR 56.2 38.1 47.2 -1.1 DEG 71 /31ST 30 /16TH APR 67.3 43.1 55.2 +2.4 DEG 84 /17TH 32 /11TH MAY 70.5 49.6 60.1 +0.7 DEG 88 /31ST 41 /19TH JUN 82.6 58.8 70.7 +6.5 DEG 116 /28TH 50 /16TH+ JUL 85.5 60.6 73.0 +2.8 DEG 98 /29TH 57 /22ND AUG 84.0 61.0 72.5 +1.9 DEG 103 /12TH 48 /23RD SEP 77.7 55.1 66.4 +1.0 DEG 89 /24TH 45 /16TH OCT 62.1 47.5 54.8 -0.8 DEG 72 / 2ND 38 /12TH NOV 56.0 44.7 50.4 +3.3 DEG 66 /14TH 33 /22ND DEC 45.8 36.5 41.1 -0.5 DEG 63 / 1ST 26 /27TH 2021 65.5 47.7 56.6 +1.5 DEG 116 /JUL 27 24 /FEB 13 NORMAL 64.0 46.3 55.1 DAYS IN 2021 WITH TEMPERATURE OF... |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---| <=32 60+ 70+ 80+ 90+ 100+ <=20 <=32 60+ 70+ -------------------------------------------------------------- JAN 0 2 0 0 0 0 0 3 0 0 FEB 3 0 0 0 0 0 0 7 0 0 MAR 0 9 1 0 0 0 0 3 0 0 APR 0 24 12 3 0 0 0 1 0 0 MAY 0 31 13 8 0 0 0 0 0 0 JUN 0 30 22 18 9 3 0 0 11 3 JUL 0 31 31 27 6 0 0 0 17 0 AUG 0 31 31 21 9 2 0 0 20 2 SEP 0 30 24 13 0 0 0 0 6 0 OCT 0 23 1 0 0 0 0 0 0 0 NOV 0 8 0 0 0 0 0 0 1 0 DEC 0 1 0 0 0 0 0 6 0 0 2021 3 220 135 90 24 5 0 20 55 5 NORMAL 1 197 124 58 11 <1 2 29 29 0 FIRST/LAST OCCURRENCES OF... IN 2021 AVERAGE LAST 32 DEG OR COLDER IN SPRING 11 APR (19 MAR) FIRST 70+ DEG OF THE YEAR 31 MAR (30 MAR) FIRST 80+ DEG OF THE YEAR 17 APR (10 MAY) FIRST 90+ DEG OF THE YEAR 1 JUN (16 JUN) LAST 90+ DEG OF THE YEAR 15 AUG ( 8 SEP) LAST 80+ DEG OF THE YEAR 25 SEP (29 SEP) LAST 70+ DEG OF THE YEAR 2 OCT (18 OCT) FIRST 32 DEG OR COLDER IN FALL 26 DEC (15 NOV) ============================================================== 2021 PORTLAND AIRPORT RAINFALL DATA... TOTAL DEPARTURE DAYS WITH AT LEAST... GREATEST IN MONTH RAIN FM NORMAL 0.01 0.10 0.50 1.00 24HRS & DATE --------------------------------------------------------------- JAN 7.03 +2.00 21 16 5 1 1.94 JAN 12 FEB 3.73 +0.13 21 11 2 0 0.99 FEB 12-13 MAR 1.55 -2.42 13 9 0 0 0.28 MAR 21-22 APR 0.39 -2.50 6 1 0 0 0.17 APR 24-25 MAY 0.58 -1.93 6 2 0 0 0.22 MAY 24-25 JUN 1.25 -0.38 8 3 1 0 0.89 JUN 12-13 JUL TRACE -0.50 0 0 0 0 T JUL 1 AUG 0.05 -0.49 2 0 0 0 0.03 AUG 6 SEP 3.76 +2.24 7 5 3 2 1.69 SEP 18-19 OCT 3.72 +0.30 18 12 2 0 0.91 OCT 21-22 NOV 6.43 +0.98 23 17 2 2 2.13 NOV 11-12 DEC 7.10 +1.33 23 16 4 1 X.XX DEC XX 2021 35.59 -1.32 148 92 19 6 2.13 NOV 11-12 NORMAL 36.91 156 93 20 4 TOTAL SNOWFALL... 14.0 INCHES (NORMAL 6.0 INCHES) PORTLAND WATER YEAR 2020-21 (1 OCT 2020 THROUGH 30 SEP 2021) 30.22 INCHES (6.69 INCHES BELOW NORMAL) ============================================================ 2021 PORTLAND AIRPORT WIND AND PRESSURE DATA... AVERAGE SPEED (MPH) STRONGEST WIND GUST 2021 (NORMAL) DIRECTION SPEED DATE ------------------------------------------------------------ JAN 8.0 (9.3) SOUTHWEST 50 MPH JAN 12 FEB 8.9 (8.7) EAST 40 MPH FEB 11 MAR 6.0 (7.7) SOUTHWEST 35 MPH MAR 19 APR 6.1 (7.1) EAST 34 MPH APR 12 MAY 6.7 (6.7) WEST 38 MPH MAY 27 JUN 6.5 (7.0) SOUTHWEST 39 MPH JUN 6 JUL 7.2 (7.2) NORTHWEST 26 MPH JUL 26 AUG 6.2 (6.8) NORTHWEST 27 MPH AUG 16 SEP 5.7 (6.2) SOUTHWEST 32 MPH SEP 17 OCT 6.8 (6.3) WEST 43 MPH OCT 24 NOV 7.2 (8.0) SOUTH 42 MPH NOV 15 DEC 7.4 (9.3) SOUTH 45 MPH DEC 11 2021 6.8 MPH (7.5) SOUTHWEST 50 MPH JAN 12 BAROMETRIC PRESSURE EXTREMES... HIGHEST 30.62 INCHES 24 FEB ( 1149 AM PST ) LOWEST 29.04 INCHES 24 OCT ( 0801 AM PST ) ============================================================== 2021 MAJOR RIVER EXTREMES WILLAMETTE RIVER (AT MORRISON ST BRIDGE, DOWNTOWN PORTLAND)... HIGHEST 13.0 FT 14 JAN 2021 (FLOOD STAGE IS 18.0 FT) LOWEST -0.3 FT 2 OCT 2021 COLUMBIA RIVER (AT INTERSTATE BRIDGE)... HIGHEST 12.7 FT 14 JAN 2021 (FLOOD STAGE IS 16.0 FT) LOWEST -0.6 FT 2 OCT 2021 =============================================================== PORTLAND AIRPORT CLIMATE PERIOD OF RECORDS... OCT 1940 TO 2021 PORTLAND AIRPORT CLIMATE NORMALS... 1991 TO 2020 =============================================================== DATA COMPILED BY ROCKEY NATIONAL WEATHER SERVICE PORTLAND OREGON ONLINE AT: WEATHER.GOV/PORTLAND $$