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Climatological Report (Monthly)
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
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000 CXUS53 KDTX 231810 AAA CLMFNT CLIMATE REPORT...ADDED SUMMARY NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1011 AM EST FRI FEB 1 2013 ................................... ...THE FLINT MI CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1921 TO 2013 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) RECORD HIGH 65 01/25/1950 LOW -25 01/18/1976 HIGHEST 60 01/12 MM MM LOWEST 01/22 MM MM AVG. MAXIMUM 35.0 29.6 5.4 AVG. MINIMUM 18.8 15.3 3.5 MEAN 26.9 22.4 4.5 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 13 18.9 -5.9 DAYS MIN <= 32 28 28.9 -0.9 DAYS MIN <= 0 2 4.7 -2.7 PRECIPITATION (INCHES) RECORD MAXIMUM 4.02 2006 MINIMUM 0.07 1945 TOTALS 3.90 1.63 2.27 DAILY AVG. 0.13 0.05 0.08 DAYS >= .01 16 13.6 2.4 DAYS >= .10 8 4.8 3.2 DAYS >= .50 4 0.8 3.2 DAYS >= 1.00 0 0.1 -0.1 GREATEST 24 HR. TOTAL 1.44 01/29 TO 01/30 STORM TOTAL MM (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 28.5 1976 0 0 TOTALS 10.6 13.1 -2.5 LIQUID EQUIV 1.06 1.30 -0.24 SINCE 7/1 21.7 27.8 -6.1 LIQUID 7/1 2.17 DAYS >= TRACE 18 12.8 5.2 DAYS >= 1.0 4 3.9 0.1 GREATEST SNOW DEPTH 4 01/28 01/01 24 HR TOTAL 2.1 MM STORM TOTAL MM (MM/DD(HH)) MM DEGREE_DAYS HEATING TOTAL 1173 1319 -146 SINCE 7/1 3533 3964 -431 COOLING TOTAL 0 0 0 SINCE 1/1 0 0 0 FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST MM LATEST MM ................................................. WIND (MPH) AVERAGE WIND SPEED 9.9 HIGHEST WIND SPEED/DIRECTION 43/280 DATE 01/20 HIGHEST GUST SPEED/DIRECTION 59/280 DATE 01/20 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 7 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 14 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 4 LIGHT RAIN 6 FREEZING RAIN 2 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 1 SNOW 2 LIGHT SNOW 16 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 1 HAZE 14 - 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 1011 AM EST FRI FEB 1 2013 ................................... ...THE TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1898 TO 2013 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) RECORD HIGH 62 01/25/1950 01/26/1944 01/27/1916 LOW -22 01/19/1994 HIGHEST 57 01/12 MM MM LOWEST 0 01/22 MM MM AVG. MAXIMUM 34.0 28.9 5.1 AVG. MINIMUM 19.6 15.6 4.0 MEAN 26.8 22.2 4.6 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 14 19.0 -5.0 DAYS MIN <= 32 27 29.0 -2.0 DAYS MIN <= 0 1 3.3 -2.3 PRECIPITATION (INCHES) RECORD MAXIMUM 4.04 1998 MINIMUM 0.24 1945 TOTALS 3.26 1.71 1.55 DAILY AVG. 0.11 0.06 0.05 DAYS >= .01 13 10.6 2.4 DAYS >= .10 6 4.2 1.8 DAYS >= .50 2 0.6 1.4 DAYS >= 1.00 0 0.1 -0.1 GREATEST 24 HR. TOTAL 1.25 01/29 TO 01/30 STORM TOTAL MM (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 30.9 1967 0 0 TOTALS 8.0 11.9 -3.9 LIQUID EQUIV 0.80 1.20 -0.40 SINCE 7/1 17.8 24.8 -7.0 LIQUID 7/1 1.78 DAYS >= TRACE 20 8.8 11.2 DAYS >= 1.0 4 4.1 -0.1 GREATEST SNOW DEPTH 6 01/29 01/28 24 HR TOTAL 2.4 MM STORM TOTAL MM (MM/DD(HH)) MM DEGREE_DAYS HEATING TOTAL 1179 1325 -146 SINCE 7/1 3513 3965 -452 COOLING TOTAL 0 0 0 SINCE 1/1 0 0 0 FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST MM LATEST MM ................................................. WIND (MPH) AVERAGE WIND SPEED 10.6 HIGHEST WIND SPEED/DIRECTION 37/270 DATE 01/20 HIGHEST GUST SPEED/DIRECTION 48/250 DATE 01/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 8 NUMBER OF DAYS CLOUDY 13 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 3 LIGHT RAIN 8 FREEZING RAIN 1 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 0 SNOW 2 LIGHT SNOW 17 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 1 HAZE 13 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ ==================================================================== ...HIGH VARIABILITY AND NEAR NORMAL SNOWFALL CHARACTERIZES JANUARY 2013... A HIGH AMPLITUDE AND GENERALLY PROGRESSIVE PATTERN HELPED DRIVE THE MONTH`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`S MONTHLY AVERAGE TEMPERATURE TO 26.9 DEGREES, +4.5 DEGREES ABOVE THE 22.4 JANUARY NORMAL. DESPITE THE MONTH`S GREATEST SNOWFALLS COMING IN AT ONLY 2.4" IN FLINT AND 2.1" IN SAGINAW, THEIR MONTHLY SNOWFALL TOTALS STILL FINISHED NEAR NORMAL, ALBEIT THE LOWER SIDE OF NORMAL. FLINT`S JANUARY TOTAL OF 10.6" WAS -2.5" BELOW THE 13.1" AVERAGE FOR THE MONTH WHILE THE 8.0" THAT FELL IN SAGINAW REPRESENTED A SLIGHTLY LARGER DEFICIT AT -3.9" BELOW THE 11.9" NORMAL. FOR THE SEASON, FLINT`S SNOW TOTAL STANDS AT 21.7", -6.1" BELOW THE 27.8" SEASONAL NORMAL. SIMILARLY, SAGINAW STANDS AT 17.8", OR -7.0" BELOW THE 24.8" SEASONAL NORMAL. IN ADDITION, MULTIPLE RAINFALLS BETWEEN A HALF INCH AND AN INCH AT BOTH FLINT AND SAGINAW CONTRIBUTED TO RATHER HIGH MONTHLY PRECIPITATION TOTALS. THE MONTHLY TOTAL OF 3.90" OF PRECIPITATION MADE IT THE 2ND WETTEST (#1 4.02" IN 2006) IN FLINT`S HISTORICAL RECORD WHILE THE 3.26" THAT WAS MEASURED IN SAGINAW MADE IT THE 8TH WETTEST (#1 5.36 IN 1897) JANUARY THERE. THE GREATEST DAILY RAINFALL TOTAL FOR THE MONTH WAS 0.92" IN FLINT AND 0.99" IN SAGINAW, BOTH ON THE 29TH. THE AVERAGE HIGH TEMPERATURE FOR THE FLINT AREA WAS 35.0 (16TH WARMEST), AND +5.4 DEGREES ABOVE THE NORMAL VALUE OF 29.6. THE AVERAGE HIGH IN SAGINAW WAS 34.0 (19TH WARMEST ON RECORD), +5.1 DEGREES ABOVE THE 28.9 DEGREE NORMAL. FLINT`S AVERAGE LOW FOR THE MONTH WAS 18.8 (30TH WARMEST ON RECORD), +3.5 DEGREES ABOVE THE 15.3 DEGREE NORMAL. SIMILARLY, THE AVERAGE LOW IN SAGINAW WAS 19.6 (22ND WARMEST ON RECORD), AND +4.0 ABOVE THE NORMAL OF 15.6 DEGREES. THE AVERAGE TEMPERATURE FOR THE ENTIRE MONTH OF JANUARY IN FLINT WAS 26.9 (19TH WARMEST), A DEPARTURE OF +4.5 DEGREES FROM THE 22.4 DEGREE JANUARY NORMAL. FOR SAGINAW, IT WAS 26.8 (19TH WARMEST ON RECORD), AND +4.6 ABOVE THE 22.2 DEGREE DECEMBER NORMAL.
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