Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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000 CXUS53 KIWX 011411 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 911 AM EST MON MAR 01 2021 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR WINTER 2020-2021... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1893 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 74 02/25/2000 LOW -22 01/20/1943 01/25/1897 HIGHEST 58 02/28 MM MM 63 LOWEST -4 02/17 MM MM 3 AVG. MAXIMUM 34.2 33.8 0.4 39.1 AVG. MINIMUM 21.1 20.1 1.0 25.2 MEAN 27.6 27.0 0.6 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 36 39.1 -3.1 19 DAYS MIN <= 32 81 77.6 3.4 79 DAYS MIN <= 0 2 5.3 -3.3 0 PRECIPITATION (INCHES) RECORD MAXIMUM 13.35 1950 MINIMUM 2.77 1945 TOTALS 5.77 6.85 -1.08 8.67 DAILY AVG. 0.07 0.08 -0.01 0.10 DAYS >= .01 43 43.3 -0.3 38 DAYS >= .10 14 18.4 -4.4 21 DAYS >= .50 2 3.0 -1.0 5 DAYS >= 1.00 1 0.8 0.2 1 GREATEST 24 HR. TOTAL 1.24 SNOWFALL (INCHES) RECORDS TOTAL 136.3 1978 24 HR TOTAL 11.8 12/25 TOTALS 50.4 52.9 -2.5 31.4 SINCE 7/1 51.7 58.1 -6.4 38.4 SNOWDEPTH AVG. 4 1 DAYS >= TRACE 53 33.3 19.7 45 DAYS >= 1.0 15 16.0 -1.0 13 GREATEST SNOW DEPTH 16 02/16 4 24 HR TOTAL 11.8 12/25 TO 12/25 DEGREE DAYS HEATING TOTAL 3319 3420 -101 2959 SINCE 7/1 4395 4691 -296 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.1 HIGHEST WIND SPEED/DIRECTION 33/250 DATE 12/24 HIGHEST GUST SPEED/DIRECTION 46/260 DATE 02/05 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.68 NUMBER OF DAYS FAIR 19 NUMBER OF DAYS PC 25 NUMBER OF DAYS CLOUDY 46 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 3 LIGHT RAIN 17 FREEZING RAIN 1 LT FREEZING RAIN 3 HAIL 0 HEAVY SNOW 2 SNOW 10 LIGHT SNOW 47 SLEET 0 FOG 57 FOG W/VIS <= 1/4 MILE 9 HAZE 44 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && A MILD DECEMBER AND JANUARY GAVE WAY TO A COLD FEBRUARY WHICH ULTIMATELY RESULTED IN AN AVERAGE TEMPERATURE OF 27.6 DEGREES, WHICH IS 0.6 DEGREES ABOVE NORMAL. THIS TIES WINTER 1989-1990 AS THE 52ND WARMEST. THIS IS COMPARABLE TO WINTER 2018-2019 WHICH OBSERVED 27.0 DEGREES AS AN AVERAGE TEMPERATURE. REGARDING SNOW, AFTER A SLOW START, SNOW PILED UP NICELY WITH A TOTAL OF 50.4 INCHES WHICH IS ONLY 2.5 INCHES BELOW NORMAL. THIS CRUSHES THE TOTAL FROM LAST WINTER; ONLY 31.4 INCHES. THIS WINTER`S TOTAL RANKS AS THE 41ST SNOWIEST WINTER. THIS IS THE SNOWIEST WINTER SINCE 58.5 INCHES IN 2014-2015. HOWEVER, NOTE THAT 50.2 INCHES WERE OBSERVED IN WINTER 2015-2016. PRECIPITATION TOTALED 5.77 INCHES WHICH IS 1.08 INCHES BELOW NORMAL. THIS RANKS AS THE 46TH DRIEST WINTER. THIS IS THE DRIEST WINTER SINCE 2014-2015; 5.37 INCHES. A MONTH BY MONTH SUMMARY IS BELOW. DECEMBER 2020 ...CHRISTMAS DAY SNOW RECORD NOT ENOUGH, AS SLOW START TO WINTER CONTINUES... DECEMBER 2020 WILL BE REMEMBERED FOR ITS MILD AND MAINLY DRY CONDITIONS. ROUGHLY TWO-THIRDS OF THE DAYS FEATURED AN AVERAGE DAILY TEMPERATURE DEPARTURE OF AT LEAST +1 DEGREE. THERE WERE TWO STRETCHES OF DAYS WHERE THIS WARMTH WAS MOST NOTABLE. THE FIRST STRETCH WAS FROM THE 9TH THROUGH 12TH WHEN HIGHS REACHED THE 50S HELPING TO PROPEL THE DAY`S TEMPERATURE DEPARTURE FROM +8 (ON 12/9) TO +15 (ON 12/12) DEGREES. THE SECOND STRETCH OCCURRED FROM THE 19TH THROUGH 23RD. HERE, DEPARTURES RANGED FROM +10 (ON 12/19) TO +18 (ON 12/23) DEGREES. THROUGH THE 23RD, SOUTH BEND WAS TIED WITH 1956 AND 1920 FOR THE 17TH WARMEST START TO WINTER WITH AN AVERAGE DAILY TEMPERATURE OF 35.0 DEGREES. THIS WAS THE WARMEST START SINCE 2015; 40.8 DEGREES. BY THE END OF THE MONTH, THE AVERAGE DAILY TEMPERATURE WAS 32.5 DEGREES WHICH IS 3.7 DEGREES ABOVE NORMAL. THIS RANKS AS THE 32ND WARMEST ON RECORD. PRECIPITATION WAS LARGELY ABSENT FOR THE FIRST ONE-THIRD OF THE MONTH. IN FACT, THROUGH 12/10, IT WAS THE DRIEST START TO WINTER ON RECORD. SECOND PLACE GOES TO 1988 WITH 0.05". IT WAS NOT UNTIL THE 11TH THAT MEASURABLE PRECIPITATION (0.01" OR GREATER) WAS OBSERVED. MUCH OF THE MONTH`S PRECIPITATION OCCURRED ON THE 12TH (1.24") AND DURING THE LAST WEEK OF THE MONTH. ALL TOLD, PRECIPITATION TOTALED 2.37 INCHES WHICH IS ONLY 0.24 INCH BELOW NORMAL. LIKE PRECIPITATION, SNOWFALL WAS LARGELY ABSENT THIS MONTH. AT ITS PEAK, THE SNOWFALL DEPARTURE FROM NORMAL WAS -11.4" FOR THE MONTH ON THE 23RD. AT THAT POINT, ONLY 0.8" HAD BEEN OBSERVED. AT THE TIME, THIS WAS TIED WITH 2018 AS THE LEAST SNOWIEST START TO WINTER. THE FOLLOWING TWO DAYS BROUGHT A WALLOP OF LAKE EFFECT SNOW. A TOTAL OF 12.8" WAS OBSERVED FROM THE 24TH TO 25TH. THE 11.8" THAT FELL ON THE 25TH WAS A RECORD (PREVIOUS: 6.0" IN 1915). THIS WAS THE ONLY RECORD SET IN DECEMBER 2020. TOTAL SNOWFALL FOR THE MONTH WAS 15.4 INCHES WHICH IS 1.9 INCHES BELOW NORMAL. THIS RANKS AS THE 54TH SNOWIEST DECEMBER ON RECORD. JANUARY 2021 ...MILD WITH A SNOW DEFICIT... MUCH OF THE MONTH MILD WITH A NOTABLE DRY SPELL FROM THE 4TH THROUGH 13TH. MOST OF THE MONTH`S PRECIPITATION FELL AT THE START OF THE MONTH, BUT THE LATTER PART BECAME MORE ACTIVE. IT WAS NOT UNTIL JANUARY 23RD THAT SOUTH BEND RECORDED A DAILY AVERAGE TEMPERATURE DEPARTURE BELOW NORMAL. OUR AVERAGE TEMPERATURE THROUGH THE 22ND WAS 30.1 DEGREES, WHICH TIES FOR THE 18TH WARMEST ON RECORD. I SHOULD NOTE THAT THIS SAME STRETCH OF DAYS IN 2020 RECORDED AN AVERAGE OF 31.5 DEGREES. THE OVERALL WARMTH WE EXPERIENCED THIS MONTH WAS NOT ONLY A RESULT WARM HIGH TEMPERATURES, THOUGH FOUR DAYS OBSERVED A HIGH OF AT LEAST 40 DEGREES. INSTEAD, MILD LOW TEMPERATURES REALLY TIPPED THE SCALES. THE (CLIMATE) NORMAL LOW TEMPERATURE FOR JANUARY IS TYPICALLY 17.6 DEGREES. INSTEAD, SOUTH BEND OBSERVED 23.8 DEGREES. THE AVERAGE TEMPERATURE FOR THE ENTIRE MONTH WAS 28.8 DEGREES WHICH IS 4.4 DEGREES ABOVE NORMAL. THIS RANKS AS THE 33RD WARMEST ON RECORD. A RAIN-CHANGING-TO-SNOW EVENT BEGAN THE MONTH WITH 0.96" OF PRECIPITATION AND 1.9" OF SNOW. THERE WERE A COUPLE OTHER INSTANCES OF SNOW AND PRECIPITATION MID-MONTH. SNOW WAS EXPERIENCED IN SMALL DOSES, WITH THE GREATEST SINGLE-DAY TOTAL OF 3.6 INCHES ON THE 31ST. SNOWFALL FOR THIS MONTH TOTALED 14.6 INCHES WHICH IS 6.0 INCHES BELOW NORMAL. THE RANKS AS THE 63RD LEAST SNOWIEST JANUARY. TO DATE, SNOWFALL FOR THE ENTIRE WINTER IS 30.0 INCHES WHICH IS 7.9 INCHES BELOW NORMAL. PRECIPITATION FOR THIS MONTH TOTALED 2.33 INCHES WHICH IS ONLY 0.04 INCHES ABOVE NORMAL. THE RANKS AS THE 56TH WETTEST JANUARY. THERE WERE NO RECORDS SET THIS MONTH. FEBRUARY 2021 ...SNOW AND COLD ARRIVE... FOLLOWING A MILD JANUARY AND THE MONTH`S SIX-INCH SNOWFALL DEFICIT, FEBRUARY OFFERED A CORRECTION SO TO SPEAK. TEMPERATURES WERE BELOW NORMAL FROM THE 2ND THROUGH 21ST. THE GREATEST AVERAGE DAILY TEMPERATURE DEPARTURE FROM NORMAL WAS ON THE 17TH, WHEN THE DAY WAS 20 DEGREES BELOW NORMAL. THIS WAS ALSO THE DATE OF THE MONTH`S LOWEST MINIMUM TEMPERATURE; -4 DEGREES. THE STRETCH OF DAYS FROM THE 1ST THROUGH 21ST RANKED AS THE 13TH COLDEST ON RECORD, WITH AN AVERAGE TEMPERATURE OF 16.4 DEGREES. THE VERY END OF THE MONTH OFFERED RELIEF FROM THE COLD AS HIGH TEMPERATURES OF AT LEAST 40 DEGREES WERE OBSERVED FROM THE 23RD THROUGH 28TH. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 21.6 DEGREES WHICH IS 6.2 DEGREES BELOW NORMAL. THIS RANKS AS THE 22ND COLDEST FEBRUARY. THE MONTH`S SNOWFALL PILED UP IN A PERIOD FROM THE 4TH TO 21ST. THE GREATEST SINGLE-DAY TOTAL FOR THE MONTH WAS 6.5 INCHES ON THE 15TH. THIS WAS THE GREATEST SINGLE-DAY FEBRUARY SNOWFALL SINCE 10.3 INCHES IN 2018. AN ADDITIONAL 1.4 INCHES OF SNOW FELL FROM THIS SAME STORM SYSTEM ON THE FOLLOWING DAY, RESULTING IN A TWO-DAY TOTAL OF 7.9 INCHES. THE TOTAL SNOW FOR THE MONTH WAS 20.4 INCHES WHICH IS 5.4 INCHES ABOVE NORMAL. THIS RANKS AS THE 21ST SNOWIEST ON RECORD. THIS IS THE SNOWIEST FEBRUARY SINCE 2018 WHEN 29.6 INCHES WERE OBSERVED. THE GREATEST SNOW DEPTH (7AM) WAS 16 INCHES ON THE 16TH. THIS TIES FOR THE 20TH GREATEST MAXIMUM SNOW DEPTH ON RECORD. THIS IS THE GREATEST SNOW DEPTH SINCE JANUARY 8TH, 2011, WHICH HAD A MAXIMUM OF 23 INCHES. I SHOULD NOTE THAT 2018 (FEB 2ND) HAD A MAXIMUM SNOW DEPTH OF 15 INCHES. BROWN $$