Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 042031 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 139 PM EDT THU SEP 1 2016 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2016 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 99 08/28/1948 08/26/1948 LOW 36 08/30/1965 HIGHEST 96 08/12 89 08/17 LOWEST 56 08/23 50 08/28 AVG. MAXIMUM 86.5 79.1 7.4 79.1 AVG. MINIMUM 65.4 59.5 5.9 59.9 MEAN 75.9 69.3 6.6 69.5 DAYS MAX >= 90 10 1.4 8.6 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.26 1886 MINIMUM 0.36 1876 TOTALS 3.91 3.47 0.44 4.67 DAYS >= .01 9 9 DAYS >= .10 8 4 DAYS >= .50 3 2 DAYS >= 1.00 1 2 GREATEST 24 HR. TOTAL 1.12 08/16 TO 08/16 08/10 TO 08/10 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 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 MM DEGREE_DAYS HEATING TOTAL 0 22 -22 8 SINCE 7/1 0 34 -34 19 COOLING TOTAL 347 155 192 157 SINCE 1/1 851 484 367 554 ................................................. WIND (MPH) AVERAGE WIND SPEED 7.2 HIGHEST WIND SPEED/DIRECTION 32/250 HIGHEST GUST SPEED/DIRECTION 41/270 DATE 08/16 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 7 NUMBER OF DAYS PC 18 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 7 MIXED PRECIP 0 HEAVY RAIN 7 RAIN 5 LIGHT RAIN 10 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 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...RECORD BREAKING HEAT THIS AUGUST... WARM TO UNCOMFORTABLY HOT DAYS AND MILD NIGHTS THROUGH AUGUST MADE THIS MONTH THE WARMEST AUGUST ON RECORD, AND SECOND WARMEST MONTH ALL-TIME. ALL BUT ONE DAY THIS MONTH AVERAGED ABOVE NORMAL IN TEMPERATURES. THOUGH THE HEAT WAS CONSISTENT...IT WAS REALLY NOT THAT EXTREME AS THERE WAS JUST ONE DAILY RECORD HIGH TIED THIS MONTH. THERE WERE SEVERAL HOT AND STICKY DAYS, BUT FOR AUGUST THERE WAS ALSO AN ABUNDANCE OF SUNNY DAYS WITH TOLERABLE HUMIDITY LEVELS. SEVERAL HEAVY RAIN EVENTS THE LAST WEEK OF THE MONTH BROUGHT PROMISING RELIEF FROM THE SHORT-TERM DROUGHT ACROSS THE REGION. THE AVERAGE TEMPERATURE THIS MONTH WAS 75.9F WHICH WAS 6.6F DEGREES ABOVE NORMAL, AND NEARLY A FULL DEGREE ABOVE THE PREVIOUS WARMEST AUGUST ON RECORD. THERE WAS ONLY ONE WARMER MONTH IN HISTORY, JULY 1921 (77.8F). THERE WERE 29 DAYS THAT REACHED 80F OR GREATER, WHICH IS THE GREATEST AMOUNT IN RECORDED HISTORY, BREAKING THE OLD RECORD OF 26 DAYS SET BACK IN 1959. THERE WERE ALSO 10 DAYS THAT REACHED INTO THE 90S, THIRD GREATEST NUMBER FOR THE MONTH OF AUGUST, TRAILING ONLY 1944 (12 DAYS) AND 1947 (11 DAYS). THIS BROUGHT THE TOTAL NUMBER OF DAYS IN THE 90S THIS SUMMER UP TO 24. THE HEAT WAS CONSISTENT, WITH ONLY THE 22ND DAY OF THE MONTH AVERAGING BELOW NORMAL. NIGHTTIME TEMPERATURES REMAINED MILD WITH 7 DAYS THIS MONTH REMAINING IN THE 70S, WHICH IS TWO LESS THAN THE RECORD OF 9 NIGHTS (1947). THERE WERE TWO RECORD WARM MINIMUM TEMPERATURES SET; ON THE 12TH AND 13TH OF THE MONTH THE LOWEST TEMPERATURE RECORDED BEING 75F. THE DAILY RECORD ON THE 12TH BROKE THE PREVIOUS RECORD FROM 1947, AND THE RECORD ON THE 13TH BROKE THE RECORD FROM 1988. PRECIPITATION FOR THE MONTH TOTALED 3.91 INCHES WHICH IS ABOUT A HALF INCH ABOVE NORMAL. THIS IS THE FIRST MONTH TO AVERAGE ABOVE NORMAL PRECIPITATION SINCE MAY OF 2016, AND WAS THE WETTEST MONTH SINCE LAST SEPTEMBER. THERE WERE TWO IMPACTFUL RAIN EVENTS, IN THE SECOND HALF OF THE MONTH. ON THE 16TH DEEP SUB-TROPICAL MOISTURE PASSED OVER THE REGION BRINGING WIDESPREAD STORMS, WITH JUST OVER AN INCH OF RAIN FALLING AT THE ROCHESTER AIRPORT. ON THE FINAL DAY OF THE MONTH 0.76 INCHES OF RAIN ACCUMULATED, BY BOTH MORNING SHOWERS. AUGUST BEGAN IN SIMILAR FASHION AS JULY, WITH PERSISTENT WARMTH AND SUNSHINE CONTINUING DRY CONDITIONS OVER WESTERN NEW YORK. THE DROUGHT STRENGTHENED ITS GRIP ON WESTERN NEW YORK THROUGH THE FIRST HALF OF THE MONTH AS PASSING COLD FRONTS WERE GENERALLY WEAK, BRINGING JUST SPOTTY SHOWERS AND THUNDERSTORMS TO THE AREA. LAWNS REMAINED PARCHED AND AREA FIELDS DRY. THE SECOND HALF OF THE MONTH BROUGHT SOME RELIEF FROM THE DROUGHT AS TROPICAL MOISTURE BUILT OVER THE EASTERN UNITED STATES. THIS MOISTURE COUPLED WITH COLD FRONT PASSAGES BROUGHT AN INCREASE IN STORM ACTIVITY, WITH MEANINGFUL RAIN FALLING ON THE 16TH, 20TH-21ST, 25TH AND 31ST OF THE MONTH. THIS RAINFALL COUPLED WITH A LOWER SUN ANGLE ALLOWED FOR LAWNS TO RECOVER FROM THE DROUGHT WITH GRASS RETURNING TO ITS GREEN LUSTER. HOWEVER WATER TABLES, STREAMS AND CREEKS REMAINED LOW, WITH DROUGHT CONDITIONS STILL PERSISTING. WINDS AVERAGED 7.2 MPH THIS MONTH, JUST A FEW TICKS ABOVE NORMAL. THE PEAK WIND GUST FOR THE MONTH WAS 41 MPH, THIS FOUND WITHIN A GRADIENT WIND FLOWING ACROSS THE LAKE PLAIN ON THE AFTERNOON OF THE 16TH. IN ALL...RECORD WARMTH, WITH SOME BENEFICIAL RAINS THE SECOND HALF. METEOROLOGICAL SUMMER (JUNE, JULY, AUGUST) RECAP... A CONTINUED QUIET STRETCH OVER THE EASTERN GREAT LAKES MADE FOR A SPLENDID SUMMER FOR OUTDOOR ENTHUSIASTS. MANY DAYS WERE FULL OF SUNSHINE, AND THERE WERE FEW STORMY DAYS. WHAT LITTLE RAIN THAT DID FALL THIS SUMMER FELL MAINLY THROUGH THE OVERNIGHT AND EARLY MORNING HOURS. ROCHESTER FINISHED WITH THE 2ND WARMEST SUMMER ON RECORD (72.7F), ECLIPSED BY ONLY THE SUMMER OF 1949 (73.0F). THE HEAT WAS PERSISTENT, BUT NOT EXTREME AS THERE WAS JUST ONE RECORD HIGH TEMPERATURE SET ON AUGUST 12TH (96F). THERE WERE A RECORD 72 DAYS THAT REACHED INTO THE 80S (TIED 1973) AND 23 DAYS THAT TOPPED THE 90F MARK (4TH GREATEST). OVERNIGHT LOWS REMAINED ABOVE 70F ON 15 DAYS, TIED FOR 6TH GREATEST. ALL MONTHS AVERAGED ABOVE NORMAL, WITH THE DEGREE OF ANOMALOUS WARMTH GREATER WITH EACH SUCCESSIVE MONTH. A VERY DRY SUMMER PERSISTED THROUGH JUNE, JULY AND INTO THE FIRST HALF OF AUGUST. SUMMER`S PRECIPITATION TOTALED 6.04 INCHES WHICH PLACES THIS SUMMER 19TH DRIEST. THE DRY SPRING AND SUMMER PARCHED AREA LAWNS AND FIELDS, NEGATIVELY IMPACTED AGRICULTURAL INTERESTS AND LOWERED THE FLOW OF STREAMS AND CREEKS THROUGH THE REGION. A WET SECOND HALF OF AUGUST BROUGHT SOME IMPROVEMENT AS LAWNS RETURNED TO THEIR GREEN COLOR, THOUGH THE FLOW ON AREA STREAMS AND CREEKS REMAINED LOW. OVERALL THIS SUMMER WAS GREAT FOR OUTDOOR ACTIVITIES, BUT VERY POOR FOR AGRICULTURE. TEMPERATURE................72.7F (+3.9F) 2ND WARMEST PRECIPITATION.............6.04" (-4.10") 19TH DRIEST && THOMAS $$

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