000 CXUS51 KGYX 031315 CLMPWM CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 815 AM EST TUE NOV 3 2009 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1941 TO 2009 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2009 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2009 /FOR SNOWFALL/ WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 88 10/07/1963 LOW 15 10/28/1976 HIGHEST 66 10/05 73 10/09 LOWEST 28 10/17 25 10/31 AVG. MAXIMUM 55.5 57.9 -2.4 AVG. MINIMUM 38.2 37.4 0.8 MEAN 46.9 47.7 -0.8 48.8 DAYS MAX >= 90 0 DAYS MAX <= 32 0 DAYS MIN <= 32 8 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 16.86 1996 MINIMUM 0.09 1924 TOTALS 4.99 4.40 0.59 3.19 DAILY AVG. 0.16 DAYS >= .01 13 DAYS >= .10 6 DAYS >= .50 4 DAYS >= 1.00 2 GREATEST 24 HR. TOTAL 1.90 10/03 TO 10/03 10/02 TO 10/03 10/03 TO 10/03 SNOWFALL (INCHES) RECORDS TOTAL 3.8 1969 TOTALS T 0.1 -0.1 0.0 SINCE 7/1 T 0.1 -0.1 SNOWDEPTH AVG. 0 DAYS >= TRACE 1 0.1 0.9 DAYS >= 1.0 0 0.0 0.0 GREATEST SNOW DEPTH 0 MM 24 HR TOTAL T 10/18 TO 10/18 DEGREE_DAYS HEATING TOTAL 557 523 34 SINCE 7/1 808 778 30 COOLING TOTAL 0 1 -1 SINCE 1/1 304 347 -43 ................................................................. WIND (MPH) AVERAGE WIND SPEED 6.4 HIGHEST WIND SPEED/DIRECTION MM DATE MM HIGHEST GUST SPEED/DIRECTION MM DATE MM SKY COVER AVERAGE RH (PERCENT) 74 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 HEAVY RAIN 3 RAIN 5 LIGHT RAIN 14 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 1 FOG 14 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. && OCTOBER 2009 IN PORTLAND WAS COOLER AND WETTER THAN NORMAL. WITH AN AVERAGE TEMPERATURE OF 46.9 DEGREES OCTOBER WAS 0.8 DEGREES BELOW NORMAL AND WAS THE 56TH WARMEST (OR THE 14TH COLDEST) IN THE PAST 69 YEARS OF TEMPERATURE RECORDS. THE WARMEST OCTOBER WAS 55.3 DEGREES IN 1947 AND THE COLDEST WAS 43.6 DEGREES IN 1976. THE AVERAGE HIGH FOR THE MONTH WAS 55.5 DEGREES WHICH WAS 2.4 DEGREES BELOW NORMAL AND TIED 1974 AS THE 5TH COLDEST ON RECORD. THE WARMEST AVERAGE HIGH ON RECORD IS 69.6 DEGREES IN 1947 AND THE COLDEST ON RECORD IS 53.4 DEGREES IN 1976. THE AVERAGE LOW FOR THE MONTH WAS 38.2 DEGREES WHICH WAS 0.8 DEGREES WARMER THAN NORMAL. THIS RANKS AS THE 36TH WARMEST AVERAGE LOW IN THE PAST 69 YEARS. THE WARMEST AVERAGE LOW WAS 44.4 DEGREES IN 2007 AND THE COLDEST WAS 33.7 DEGREES IN 1976. THE TEMPERATURE IN PORTLAND NEVER REACHED 70 DEGREES IN OCTOBER. THE WARMEST TEMPERATURE FOR THE MONTH WAS 66 DEGREES WHICH HAPPENED ON THE 5TH. THERE WERE 11 DAYS OUT OF 31 WITH HIGHS OF 60 OR HIGHER. THE COLDEST TEMPERATURE FOR THE MONTH WAS 28 DEGREES ON THE 17TH AND WAS ONE OF EIGHT DAYS WITH LOWS OF 32 OR COLDER. OCTOBER HAD NEARLY 5 INCHES /4.99 INCHES/ OF PRECIPITATION. THIS WAS 0.59 INCHES ABOVE NORMAL AND WAS THE 28TH WETTEST OCTOBER IN THE PAST 139 YEARS. THE WETTEST OCTOBER WAS 16.86 INCHES IN 1996 AND THE DRIEST WAS 0.09 INCHES IN 1924. THE WETTEST DAY WAS ON THE 3RD WITH A RECORD SETTING 1.90 INCHES OF RAIN. THE SECOND WETTEST DAY WAS THE 24TH WITH NEARLY AN INCH AND A QUARTER /1.24 INCHES/ OF RAIN AND THE THIRD WETTEST DAY WAS ON THE 7TH WITH THREE QUARTERS OF AN INCH /0.75 INCHES/ OF RAIN. ALTOGETHER THERE WERE 16 DAYS OUT OF 31 WITH A TRACE OR MORE OF PRECIPITATION. THE LONGEST STRETCH WITHOUT ANY RAIN WAS JUST A FOUR DAY PERIOD FROM THE 14TH THROUGH THE 17TH. SO FAR THIS YEAR PORTLAND HAS RECORDED 45.63 INCHES OF PRECIPITATION MAKING THIS THE 11TH WETTEST JANUARY THROUGH OCTOBER PERIOD IN PORTLAND. THE WETTEST FIRST 10 MONTHS OF THE YEAR WAS 54.61 INCHES IN 1979 AND THE DRIEST WAS 17.40 INCHES IN 1957. THERE WAS A TRACE OF SNOWFALL IN OCTOBER...AND THAT OCCURRED ON THE 18TH. THIS TIED THE DAILY SNOWFALL RECORD WHICH WAS SET SEVERAL TIMES, THE MOST RECENT BEING IN 1959. THE TRACE OF SNOWFALL FOR THE MONTH TIED 36 OTHER YEARS AS THE 12TH SNOWIEST OCTOBER IN THE PAST 129 YEARS OF SNOWFALL RECORDS. THE SNOWIEST OCTOBER WAS IN 1969 WITH 3.8 INCHES. THE LEAST SNOWIEST WAS ZERO SNOWFALL WHICH HAS HAPPENED 81 TIMES, MOST RECENTLY IN 2008. THE 30 YEAR NORMAL SNOWFALL FOR PORTLAND IN OCTOBER IS 0.1 INCHES. HERE IS A LIST OF DAILY RECORDS SET OR TIED IN PORTLAND DURING OCTOBER 2009... DATE RECORD PREVIOUS RECORD 3 1.90 - GREATEST PRECIPITATION 1.68 INCHES IN 1979 13 48 - COLDEST HIGH TEMPERATURE 48 DEGREES IN 1988 /TIED/ 15 43 - COLDEST HIGH TEMPERATURE 47 DEGREES IN 1961 15 37 - COLDEST DAILY AVERAGE TEMP. 37 DEGREES IN 1980 /TIED/ 18 TRACE - GREATEST SNOWFALL TRACE - MOST RECENT 1959 /TIED/ 28 4 - SMALLEST DAILY TEMP. RANGE 4 DEGREES IN 1953 /TIED/ $$ SJC