Climatological Report (Monthly)
Issued by NWS Caribou, ME

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000 CXUS51 KCAR 012053 CLMCAR CLIMATE REPORT NATIONAL WEATHER SERVICE CARIBOU, ME 430 PM EDT WED OCT 1 2014 ................................... ...THE CARIBOU ME CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1939 TO 2014 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 92 09/01/2010 LOW 23 09/29/1980 09/22/1950 HIGHEST 84 09/28 MM MM 83 09/11 LOWEST 29 09/19 MM MM 35 09/17 AVG. MAXIMUM 67.0 65.4 1.6 66.5 AVG. MINIMUM 44.7 44.5 0.2 46.8 MEAN 55.8 55.0 0.8 56.7 DAYS MAX >= 90 0 0.1 -0.1 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 3 1.6 1.4 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 8.81 1999 MINIMUM 0.86 1968 TOTALS 2.59 -0.73 DAILY AVG. 0.09 0.11 -0.02 0.23 DAYS >= .01 12 11.8 0.2 13 DAYS >= .10 7 6.9 0.1 11 DAYS >= .50 1 2.1 -1.1 6 DAYS >= 1.00 1 0.7 0.3 3 GREATEST 24 HR. TOTAL 1.29 09/03 TO 09/03 09/12 TO 09/13 09/02 TO 09/03 09/30 TO 09/30 09/03 TO 09/03 09/30 TO 09/30 SNOWFALL (INCHES) RECORDS TOTAL 2.5 1991 TOTALS 0.0 0.1 -0.1 0.0 SINCE 7/1 0.0 0.1 -0.1 0.0 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 MM 0 MM 24 HR TOTAL 0.0 09/30 TO 09/30 09/30 TO 09/30 09/30 TO 09/30 09/30 TO 09/30 DEGREE_DAYS HEATING TOTAL 294 313 -19 257 SINCE 7/1 352 467 -115 371 COOLING TOTAL 24 11 13 13 SINCE 1/1 265 180 85 192 ................................................. WIND (MPH) AVERAGE WIND SPEED 6.8 HIGHEST WIND SPEED/DIRECTION 28/240 DATE 09/22 HIGHEST GUST SPEED/DIRECTION 38/250 DATE 09/22 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.40 NUMBER OF DAYS FAIR 14 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 7 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 5 LIGHT RAIN 15 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 2 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. -------------------------------------------------------------------------------------- ...NORTHERN AND EASTERN MAINE MONTHLY AREA CLIMATE NARRATIVE... SEPTEMBER 2014 FEATURED NEAR AVERAGE TEMPERATURES ACROSS NORTHERN AND EASTERN MAINE DESPITE SOME WILD TEMPERATURE SWINGS DURING THE MONTH. PRECIPITATION WAS BELOW NORMAL...AND ACROSS CENTRAL AND DOWN EAST MAINE WAS WELL BELOW NORMAL AND RANGED FROM ONLY 25 TO 50 PERCENT OF NORMAL. AT CARIBOU...THE AVERAGE TEMPERATURE OF 55.8 DEGREES WAS 8 TENTHS OF A DEGREE (0.8F) ABOVE NORMAL. IT WAS THE COOLEST SEPTEMBER SINCE 2009. AT BANGOR...THE AVERAGE TEMPERATURE OF 59.2 DEGREES WAS JUST 4 TENTHS OF A DEGREE (0.4F) ABOVE NORMAL. THE MONTH BEGAN ON A WARM NOTE WITH WELL ABOVE NORMAL TEMPERATURES DURING THE FIRST SEVERAL DAYS OF THE MONTH. THERE WAS A COOL SNAP TOWARD THE MIDDLE OF THE MONTH THAT PRODUCED 8 CONSECUTIVE DAYS WITH HIGHS ONLY IN THE 50S ACROSS MUCH OF FAR NORTHERN MAINE. IT WAS THE MOST CONSECUTIVE DAYS WITH HIGHS ONLY IN THE 50S SO EARLY IN THE SEASON AT CARIBOU. THERE WAS ANOTHER SURGE OF WARM WEATHER TOWARD THE END OF THE MONTH THAT PRODUCED A HIGH OF 84 DEGREES AT CARIBOU ON THE 28TH. NOT ONLY DID THIS SMASH THE DAILY TEMPERATURE RECORD OF 77 DEGREES SET BACK IN 1946...IT WAS ALSO THE WARMEST TEMPERATURE EVER OBSERVED SO LATE IN THE SEASON AT MANY LONG TERM CLIMATE SITES ACROSS NORTHERN MAINE. MUCH BELOW NORMAL TEMPERATURES FOLLOWED ON THE LAST DAY OF THE MONTH WHEN AREAS IN THE SAINT JOHN VALLEY HAD HIGHS ONLY IN THE 40S. SOME OF THE NORMAL COLD SPOTS ACROSS NORTHERN MAINE HAD FROST AS EARLY AS THE 2ND WEEK OF SEPTEMBER...AND ESTCOURT STATION EVEN HAD A HARD FREEZE ON THE MORNING OF THE 8TH WITH A LOW OF 28 DEGREES. THE FIRST FREEZE OF THE SEASON OCCURRED ON THE 18TH AT CARIBOU WHEN THE TEMPERATURE FELL TO 31F...WHICH WAS ABOUT A WEEK EARLIER THAN AVERAGE. AT BANGOR...THE FIRST FREEZE WAS OBSRVED ON THE 19TH WHEN THE LOW TEMPERATURE WAS 30 DEGREES. THIS WAS ABOUT 2 WEEKS EARLIER THAN AVERAGE. RAINFALL WAS WELL BELOW NORMAL...AND NOT FAR FROM THE ALL-TIME DRIEST SEPTEMBER ACROSS PARTS OF CENTRAL AND DOWN EAST MAINE. BANGOR OBSERVED ONLY 0.89" OF RAIN THIS PAST SEPTEMBER...WHICH MADE IT THE 3RD DRIEST SEPTEMBER ON RECORD BEHIND ONLY THE DRIEST SEPTEMBER IN 1929 WITH 0.64"...AND 1948 WITH 0.74" OF RAIN. RAINFALL ACROSS NORTHERN MAINE WAS BELOW AVERAGE...AND RANGED FROM 50 TO 80 PERCENT OF NORMAL. AT CARIBOU THERE WAS A TOTAL OF 2.59"...WHICH MADE IT THE DRIEST SEPTEMBER SINCE 2009. THUNDER WAS OBSERVED AT BANGOR ON THE 1ST OF THE MONTH...AND NO THUNDER WAS OBSERVED AT CARIBOU. DENSE FOG WHICH REDUCED THE VISIBILITY TO 1/4 MILE OR LESS WAS OBSERVED AT BANGOR ON 5 DAYS AND ON 2 DAYS AT CARIBOU. THE LEAVES REACHED THEIR PEAK COLORS ACROSS FAR NORTHERN MAINE BY THE LAST WEEK OF THE MONTH...WITH MODERATE AMOUNTS OF COLOR TOWARD THE DOWN EAST COAST BY THE END OF THE MONTH. THE OUTLOOK FROM THE CLIMATE PREDICTION CENTER FOR THE MONTH OF OCTOBER FOR OUR REGION CALLS FOR AN INCREASED LIKELIHOOD OF ABOVE NORMAL TEMPERATURES. THERE ARE NO STRONG CLIMATE SIGNALS THAT WOULD POINT TOWARD AN UNUSUALLY WET OR DRY OCTOBER. THE AVERAGE TEMPERATURES HAVE THEIR GREATEST DROP OFF DURING THE MONTH OF OCTOBER. AT CARIBOU (BANGOR)...THE AVERAGE HIGH TEMPERATURE FALLS FROM 59 (64) TO 45 (52). THE AVERAGE LOW TEMPERATURES AT CARIBOU (BANGOR) FALL FROM 39 (42) TO 30 (33). JUST OVER 1 1/2 HOURS OF DAYLIGHT IS LOST DURING THE MONTH OF OCTOBER. $$ CB/VJN

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