BOF 000 CXUS51 KGYX 051530 CLMPWM CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1130 AM EDT MON MAY 5 2008 ................................... ...THE PORTLAND CLIMATE SUMMARY FOR THE MONTH OF APRIL 2008... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1941 TO 2008 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2008 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2008 /FOR SNOWFALL/ WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 85 04/20/2005 04/21/1957 LOW 8 04/04/1954 HIGHEST 76 04/23 81 04/23 LOWEST 26 04/08 22 04/01 AVG. MAXIMUM 55.0 52.8 2.2 AVG. MINIMUM 34.6 34.7 -0.1 MEAN 44.8 43.7 1.1 41.8 DAYS MAX >= 90 0 DAYS MAX <= 32 0 DAYS MIN <= 32 12 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.90 1973 MINIMUM 0.28 1999 TOTALS 4.47 4.26 0.21 8.97 DAILY AVG. 0.15 DAYS >= .01 8 DAYS >= .10 5 DAYS >= .50 3 DAYS >= 1.00 2 GREATEST 24 HR. TOTAL 3.14 04/28 TO 04/29 SNOWFALL (INCHES) RECORDS TOTAL 20.5 1906 TOTALS T 3.2 -3.2 15.1 SINCE 7/1 103.0 66.4 36.6 SNOWDEPTH AVG. 0 DAYS >= TRACE 1 1.3 -0.3 DAYS >= 1.0 0 0.8 -0.8 GREATEST SNOW DEPTH 0 MM 24 HR TOTAL T 04/04 TO 04/04 DEGREE_DAYS HEATING TOTAL 598 649 -51 SINCE 7/1 6505 6841 -336 COOLING TOTAL 0 0 0 SINCE 1/1 0 0 0 ................................................................. WIND (MPH) AVERAGE WIND SPEED 7.2 HIGHEST WIND SPEED/DIRECTION 35/290 DATE 04/02 HIGHEST GUST SPEED/DIRECTION 47/300 DATE 04/02 SKY COVER AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 HEAVY RAIN 3 RAIN 4 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 1 FOG 12 FOG W/VIS <= 1/4 MILE 3 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && DESPITE RECORDING ABOVE NORMAL RAINFALL, PORTLANDERS WERE ABLE TO ENJOY SOME OF THE FINEST SPRING WEATHER IN APRIL. A STRETCH OF 2 WEEKS, FROM THE 13TH THROUGH THE 26TH, SAW 11 DAYS WITH NO RAIN AND THREE DAYS WITH JUST A TRACE OF RAIN EACH DAY. FROM THE 14TH THROUGH THE 22ND PORTLAND HAD NINE CONSECUTIVE DAYS WITH NO RAIN. THIS WAS ACCOMPANIED BY VERY MILD TEMPERATURES WITH HIGHS AT LEAST IN THE 50S EACH DAY. IN FACT THERE WERE FOUR DAYS WITH HIGHS OF 60 OR HIGHER AND ONE DAY THAT TOPPED 70 DEGREES DURING THIS PERIOD (73 DEGREES ON THE 18TH). THE NEXT TWO DAYS, THE 23RD AND 24TH, EACH HAD A TRACE OF RAIN BUT ALSO EXPERIENCED VERY WARM TEMPERATURES WITH HIGHS OF 76 AND 69 DEGREES RESPECTIVELY. THERE ALSO WAS A STRETCH OF FIVE DAYS WITH NO RAIN FROM THE 6TH THROUGH THE 10TH. TEMPERATURES WERE A LITTLE COOLER DURING THIS PERIOD BUT STILL CULMINATED WITH A WARM 67 DEGREE HIGH ON THE 10TH OF THE MONTH. FOR THE MONTH OF APRIL...OUT OF 30 DAYS...24 DAYS HAD HIGHS OF 50 OR HIGHER, SEVEN DAYS HAD HIGHS OF 60 OR HIGHER AND TWO DAYS HAD HIGHS OF 70 OR HIGHER. THE AVERAGE HIGH FOR THE MONTH WAS 55.0 DEGREES WHICH IS THE 14TH HIGHEST IN THE PAST 68 YEARS OF TEMPERATURE RECORDS AND 2.2 DEGREES ABOVE THE NORMAL AVERAGE HIGH FOR APRIL, WHICH IS 52.8 DEGREES. THE AVERAGE LOW FOR THE MONTH WAS 34.6 DEGREES WHICH WAS ACTUALLY 0.1 DEGREE BELOW NORMAL AND TIED 1942 AS THE 25TH WARMEST ON RECORD. THE OVERALL AVERAGE TEMPERATURE FOR THE MONTH WAS 44.8 DEGREES WHICH WAS 1.1 DEGREES ABOVE NORMAL AND WAS THE 17TH WARMEST ON RECORD. THE WARMEST APRIL AT THE PORTLAND JETPORT WAS 47.0 DEGREES IN 1945 AND THE COLDEST WAS 38.4 DEGREES IN 1943. THERE WAS JUST UNDER FOUR AND A HALF INCHES OF RAIN IN APRIL. THE 4.47 INCHES WAS 0.21 INCHES ABOVE NORMAL AND WAS THE 42ND WETTEST APRIL IN THE PAST 138 YEARS OF PRECIPITATION RECORDS AT PORTLAND. THE WETTEST APRIL WAS 9.90 INCHES IN 1973 AND THE DRIEST WAS 0.28 INCHES IN 1999. MOST OF THE RAIN FELL ON JUST TWO DAYS. PORTLAND MEASURED 1.09 INCHES ON THE 28TH AND A RECORD 2.25 INCHES ON THE 29TH. THE TWO DAY TOTAL OF 3.34 INCHES ACCOUNTED FOR THREE FOURTHS OF THE ENTIRE MONTHLY RAINFALL. FOR THE MONTH THERE WERE EIGHT DAYS WITH AT LEAST A HUNDREDTH OF AN INCH OF RAIN AND FOUR OTHER DAYS WITH A TRACE. THE ABOVE NORMAL RAINFALL IN APRIL ADDED TO THE VERY WET YEAR PORTLAND IS EXPERIENCING SO FAR. FROM JANUARY 1ST THROUGH APRIL 30TH PORTLAND HAS MEASURED 21.28 INCHES OF PRECIPITATION, WHICH IS THE 9TH WETTEST FIRST FOUR MONTHS OF THE YEAR ON RECORD. THE RECORD WETTEST JANUARY THROUGH APRIL WAS 27.33 INCHES IN 1936 AND THE DRIEST WAS 4.16 INCHES IN 1872. NORMALLY PORTLAND CAN EXPECT 15.63 INCHES FROM JANUARY THROUGH APRIL. PORTLAND HAD JUST A TRACE OF SNOWFALL IN APRIL, AFTER ONE OF THE SNOWIEST WINTERS ON RECORD. THE TRACE OF SNOWFALL IS THE 27TH TIME IN THE PAST 127 YEARS OF SNOW RECORDS THAT PORTLAND HAD JUST A TRACE OF SNOW. THERE WERE ALSO NINE YEARS WITH ZERO SNOWFALL. NORMALLY PORTLAND CAN EXPECT 3.2 INCHES OF SNOW IN THE MONTH OF APRIL. THE TRACE OF SNOW FELL ON THE 4TH DAY OF THE MONTH AND WAS THE ONLY DAY WITH ANY SNOW. FOR THE SEASON PORTLAND HAS RECORDED 103.0 INCHES OF SNOW. THIS IS ONLY THE 15TH TIME IN 127 YEARS THAT PORTLAND HAS TOPPED 100 INCHES OF SNOW. THE SNOW SEASON CONTINUES THROUGH THE END OF JUNE. NORMALLY PORTLAND SEES LITTLE OR NO SNOW IN MAY AND NONE IN JUNE SO THE SEASON SNOW TOTAL WILL LIKELY STAY AT 103.0 INCHES. FINAL DETAILS ON THE SNOW SEASON WILL BE PROVIDED AFTER THE END OF MAY SINCE HISTORICALLY PORTLAND HAS ON OCCASION MEASURED SNOW DURING THE MONTH OF MAY AND THESE FIGURES WOULD HAVE TO BE INCLUDED IN A FINAL SEASONAL SUMMARY. HERE IS A LIST OF DAILY RECORDS SET OR TIED IN PORTLAND DURING APRIL 2008... DATE RECORD PREVIOUS RECORD 10 54 - WARMEST AVERAGE TEMP. 54 DEGREES IN 1988 /TIED/ 24 46 - WARMEST LOW TEMPERATURE 45 DEGREES IN 1957, 1958, 1994 & 2008 29 2.25 - GREATEST PRECIPITATION 1.96 INCHES IN 1904 $$ SJC EOF