000 CXUS53 KDTX 032155 CLMFNT CLIMATE REPORT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 450 PM EST TUE NOV 3 2009 ................................... ...THE FLINT MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1921 TO 2009 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) RECORD HIGH 89 10/01/2002 10/06/1963 10/03/1953 LOW 19 10/21/1974 10/30/1966 HIGHEST 69 10/30 MM MM LOWEST 23 10/18 MM MM AVG. MAXIMUM 55.6 59.7 -4.1 AVG. MINIMUM 39.1 38.6 0.5 MEAN 47.4 49.2 -1.8 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 8 5.8 2.2 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 6.59 2001 MINIMUM 0.33 2005 TOTALS 3.35 2.34 1.01 DAILY AVG. 0.11 0.08 0.03 DAYS >= .01 18 MM MM DAYS >= .10 9 MM MM DAYS >= .50 3 MM MM DAYS >= 1.00 0 MM MM GREATEST 24 HR. TOTAL 0.90 10/30 TO 10/30 SNOWFALL (INCHES) RECORDS TOTAL 4.4 1989 TOTALS 0.0 0.3 -0.3 LIQUID EQUIV 0.00 0.00 0.00 SINCE 7/1 0.0 0.3 -0.3 LIQUID 7/1 0.00 DAYS >= TRACE 0 0.3 -0.3 DAYS >= 1.0 0 0.1 -0.1 GREATEST SNOW DEPTH 0 DEGREE_DAYS HEATING TOTAL 542 478 64 SINCE 7/1 744 687 57 COOLING TOTAL 0 4 -4 SINCE 1/1 341 554 -213 FREEZE DATES RECORD EARLIEST 09/17/1959 ................................................. WIND (MPH) AVERAGE WIND SPEED 8.2 HIGHEST WIND SPEED/DIRECTION 36/240 DATE 10/06 HIGHEST GUST SPEED/DIRECTION 51/270 DATE 10/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 4 NUMBER OF DAYS PC 12 NUMBER OF DAYS CLOUDY 15 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 4 RAIN 6 LIGHT RAIN 18 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 19 FOG W/VIS <= 1/4 MILE 1 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && CLIMATE REPORT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 450 PM EST TUE NOV 3 2009 ................................... ...THE TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1898 TO 2009 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) RECORD HIGH 91 10/07/2007 LOW 19 10/31/1925 10/30/1925 HIGHEST 69 10/30 MM MM LOWEST 26 10/18 MM MM 10/11 AVG. MAXIMUM 55.4 58.8 -3.4 AVG. MINIMUM 40.0 40.1 -0.1 MEAN 47.7 49.5 -1.8 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 6 5.2 0.8 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.78 1954 MINIMUM 0.18 1952 TOTALS 4.19 2.49 1.70 DAILY AVG. 0.14 0.08 0.06 DAYS >= .01 13 MM MM DAYS >= .10 6 MM MM DAYS >= .50 2 MM MM DAYS >= 1.00 1 MM MM GREATEST 24 HR. TOTAL 1.91 10/30 TO 10/30 SNOWFALL (INCHES) RECORDS TOTAL 5.0 1967 TOTALS 0.0 0.2 -0.2 LIQUID EQUIV 0.00 0.00 0.00 SINCE 7/1 0.0 0.2 -0.2 LIQUID 7/1 0.00 DAYS >= TRACE 0 0.1 -0.1 DAYS >= 1.0 0 0.1 -0.1 GREATEST SNOW DEPTH 0 DEGREE_DAYS HEATING TOTAL 526 487 39 SINCE 7/1 701 692 9 COOLING TOTAL 0 0 0 SINCE 1/1 346 544 -198 FREEZE DATES RECORD EARLIEST 09/14/1899 ................................................. WIND (MPH) AVERAGE WIND SPEED 9.1 HIGHEST WIND SPEED/DIRECTION 36/250 DATE 10/30 HIGHEST GUST SPEED/DIRECTION 46/260 DATE 10/31 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 5 NUMBER OF DAYS PC 12 NUMBER OF DAYS CLOUDY 14 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 4 LIGHT RAIN 18 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ ====================================================================== CLIMATOLOGICAL SUMMARY FOR FLINT/SAGINAW 2009 ...ONE OF THE COLDER AND WETTER OCTOBERS ON RECORD.... ...UNSEASONABLY COLD WEATHER FIRST HALF OF MONTH RANKS IN TOP TEN... ...WARMER WEATHER LATTER THIRD OF THE MONTH OFFSETS THE COLD EARLIER... ***DOMINANT TEMPERATURE/RAIN TREND...BELOW NORMAL/ABOVE NORMAL*** MOTHER NATURE REVERSED THE DRY AND WARM TREND SEEN EARLY THIS FALL... BACK TO THE COOL AND WET SCENARIO SEEN MOST OF THE SUMMER. BOTH CITIES (FLINT/SAGINAW) PLACED IN THE TOP 20 COLDEST OCTOBERS (AND THIS IN SPITE OF THE WARM-UP LATE MONTH). FLINT...WITH AN AVERAGE TEMPERATURE OF 47.4...CAME IN AT THE 13TH COLDEST OCTOBER ON RECORD...WHILE SAGINAW WITH AN AVERAGE TEMPERATURE OF 47.7 JUST LANDED 20TH SPOT. THE FIRST WEEK OF OCTOBER WAS COOL AND WET WITH AROUND AN INCH OF RAIN MOST LOCATIONS. THE WORST OF THE COLD AIR WAS WAS YET TO COME AS WE ENTERED MID-MONTH. THE COLDEST (LARGEST BELOW NORMAL DEPARTURES) OCCURRED BETWEEN THE 10TH AND 18TH WHEN READINGS AVERAGED A HUGE 10 DEGREES BELOW NORMAL. AS THE LARGE AS THE BELOW NORMAL DEPARTURES WERE...THE PERSISTENCE OF THE COLD WAS EVEN MORE IMPRESSIVE (ESPECIALLY COMING THE FIRST PART OF THE MONTH). BY THE 15TH...OCTOBER AVERAGED 45.5 TO 46 DEGREES (OR ABOUT 6.5 DEGREES BELOW NORMAL). WITH AN AVERAGE TEMPERATURE OF 45.4 DEGREES FOR THE 15 DAY PERIOD AT FLINT...THIS WAS THE COLDEST STRETCH EVER FELT FOR THE FIRST HALF OF OCTOBER. THE PREVIOUS COLDEST EARLY OCTOBER STRETCH WAS BACK IN 1980 WITH AN AVERAGE OF 45.6. LOOKING FURTHER NORTH AT SAGINAW WITH AN AVERAGE TEMPERATURE OF 46.2... THIS YEAR TIED FOURTH PLACE /1977/. THE COLDEST FIRST HALF OF OCTOBER IN SAGINAW OCCURRED WAY BACK IN 1917 WITH 44.4. KEEP IN MIND...THE TYPICAL AVERAGE TEMPERATURE FOR THIS PERIOD /1ST-15TH/ IS AROUND 54 DEGREES (WITH HIGHS IN THE MID 60S). THE LATTER THIRD OF THE MONTH MODERATED WITH SOME BRIEF PERIODS OF INDIANA SUMMER-LIKE WEATHER...PEAKING IN TWO PERIODS. THE TEMPERATURE CLIMBED TO 66 DEGREES ON THE 21ST AT BOTH CITIES...THEN ON THE 30TH... AGAIN BOTH CITIES FLIRTED WITH 70 /69 DEGREES/...THE WARMEST OF THE MONTH. I SAY INDIAN SUMMER -LIKE- SINCE A TRUE INDIAN SUMMER HAS TO HAVE SEVERAL DAYS OF MAINLY SUNNY WEATHER AND GENERALLY CLEAR NIGHTS WITH HIGH TEMPERATURES AVERAGING WELL ABOVE NORMAL (ALL OCCURRING AFTER A KILLING FROST/FREEZE). WHILE THIS OCTOBER PERIOD MODERATED LATE IN THE MONTH...THE WARM WEATHER WAS ACCOMPANIED BY RAIN...SO THERE WAS NO STRETCH OF WARM WEATHER NOR MUCH SUNSHINE. SPEAKING OF RAIN...THE ENTIRE MONTH WAS ON THE WET SIDE WITH ALL AREAS RECEIVING ABOVE NORMAL RAINFALL (WITH THE WETTEST PERIOD NEAR THE CLOSE OF THE MONTH). FLINT'S MONTHLY TOTAL OF 3.35" WAS AN EVEN INCH ABOVE NORMAL WITH NEAR AN INCH /0.90" /OF THAT FALLING ON THE 30TH. IN AND AROUND THE SAGINAW VALLEY...THE 4.19" FOR THE MONTH MADE IT THE 13TH WETTEST ON RECORD FOR SAGINAW. SAGINAW GOT DOUSED WITH RAIN ON THE 30TH WITH NEAR TWO INCHES /1.91"/ FALLING...A NEW RECORD RAINFALL FOR THE DATE. ON THE STORM FRONT...A FEW DEEP LOWS (MORE REMINISCENT OF NOVEMBER) BROUGHT PRE-FRONTAL THUNDERSTORMS /3RD/ AND SUBSEQUENT HIGH WINDS /7TH AND 31ST/ IN THEIR WAKE. STRONG WIND GUSTS IN EXCESS OF 40 MPH IMPACTED THE AREA DURING THE EARLY MORNING HOURS OF THE 7TH. HIGHEST WIND GUSTS RANGED FROM 51 MPH AT FLINT...49 MPH /PONTIAC/...48 MPH /YPSILANTI/...46 MPH AT DETROIT METRO TO 45 MPH MT CLEMENS. THEN ON HALLOWEEN...A STRONG POLAR FRONT BROUGHT MUCH COLDER AIR INTO THE REGION AFTER A BALMY 30TH DURING THE EARLY MORNING HOURS OF 31ST. HIGHEST WINDS GUSTS WERE CLOCKED AT 45 MPH AT DETROIT METRO ARPT... PONTIAC AND SAGINAW. AS WOULD BE EXPECTED...BOTH SYSTEMS BROUGHT SOME SCATTERED POWER OUTAGES AND TREE DAMAGE. LASTLY...A WIDESPREAD KILLING FREEZE OCCURRED FOR MOST OF SOUTHEAST MICHIGAN THE MORNING OF THE 11TH. LOCATIONS NORTH OF THE M-59 SAW TEMPERATURES DROP SOLIDLY INTO THE MID AND UPPER 20S...WHILE LOCATIONS FROM METRO DETROIT SOUTH RANGED FROM THE UPPER 20S TO LOW 30S. ON AVERAGE...THIS WAS ABOUT A WEEK EARLIER THAN NORMAL...ESPECIALLY OVER EXTREME SOUTHEAST LOWER MICHIGAN. DEEDLER