Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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000 CXUS53 KIWX 011558 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 1158 AM EDT SAT JUN 1 2019 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR THE SPRING SEASON, FROM 3/1/2019 TO 5/31/2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1893 TO 2019 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 97 05/27/2012 LOW -13 03/08/1943 HIGHEST 85 05/18 MM MM 94 LOWEST 2 03/04 MM MM 14 AVG. MAXIMUM 56.1 58.7 -2.6 56.8 AVG. MINIMUM 36.0 38.5 -2.5 36.4 MEAN 46.0 48.6 -2.6 DAYS MAX >= 90 0 0.3 -0.3 3 DAYS MAX <= 32 6 3.6 2.4 4 DAYS MIN <= 32 32 28.5 3.5 47 DAYS MIN <= 0 0 0.1 -0.1 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.83 1976 MINIMUM 4.24 1971 TOTALS 14.94 9.48 5.46 13.11 DAILY AVG. 0.16 0.10 0.06 0.14 DAYS >= .01 45 38.2 6.8 39 DAYS >= .10 31 20.7 10.3 22 DAYS >= .50 12 6.2 5.8 9 DAYS >= 1.00 3 1.5 1.5 3 GREATEST 24 HR. TOTAL 1.77 SNOWFALL (INCHES) RECORDS TOTAL 34.6 1960 24 HR TOTAL MM TOTALS 1.5 8.5 -7.0 9.1 SINCE 7/1 45.7 66.6 -20.9 93.1 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= TRACE 14 7.4 6.6 16 DAYS >= 1.0 0 2.6 -2.6 3 GREATEST SNOW DEPTH T 04/28 2 24 HR TOTAL 0.8 MM DEGREE_DAYS HEATING TOTAL 1736 1565 171 1776 SINCE 7/1 MM 6254 MM MM COOLING TOTAL 17 55 -38 110 SINCE 1/1 17 56 -39 110 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.8 HIGHEST WIND SPEED/DIRECTION 39/270 DATE 05/18 HIGHEST GUST SPEED/DIRECTION 57/250 DATE 05/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 30 NUMBER OF DAYS PC 36 NUMBER OF DAYS CLOUDY 26 AVERAGE RH (PERCENT) 70 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && SPRING SEASON SUMMARY ...A WET AND COLD SPRING BUT BELOW NORMAL SNOWFALL... THE SPRING CONTINUED A TREND OF FREQUENT PRECIPITATION THAT GOES ALL THE WAY BACK TO THE WINTER MONTHS. THE LONGEST STRETCH OF DAYS WITHOUT ANY PRECIPITATION WAS JUST TWO DAYS ON SEVERAL OCCASIONS. WHAT IS INCREDIBLE STATISTICALLY IS THAT THE LAST TIME A STRING OF MORE THAN TWO DAYS IN A ROW OCCURRED WITHOUT ANY PRECIPITATION AT ALL WAS JANUARY 3RD THROUGH THE 6TH. THAT IS NEARLY 5 MONTHS IN A ROW OR 150 DAYS! THE AVERAGE MONTHLY TEMPERATURE FOR THE 2019 SPRING SEASON WAS 46.0 DEGREES, 2.6 DEGREES BELOW NORMAL. THIS RANKED AS THE 20TH COLDEST SPRING SEASON. THE WARMEST TEMPERATURE WAS 85 ON MAY 18TH AND THE COLDEST TEMPERATURE WAS 2 DEGREES ON MARCH 4TH. SPRING PRECIPITATION WAS 14.94 INCHES, 5.46 INCHES ABOVE NORMAL. THIS RANKED AS THE 5TH WETTEST SPRING SEASON ON RECORD. THIS WAS THE WETTEST SPRING SINCE 2011 WHEN 17.10 INCHES OF PRECIPITATION WAS RECORDED. MEASUREABLE PRECIPITATION OCCURRED ON 45 DAYS, WHICH IS ABOUT 7 DAYS ABOVE NORMAL FOR THE SEASON. SPRING SNOWFALL WAS JUST 1.5 INCHES, 7.0 INCHES BELOW NORMAL. THIS RANKED AS THE 8TH LEAST SNOWIEST WINTER SEASON. THE TOTAL SEASONAL SNOWFALL FOR THE PERIOD OCTOBER 1ST TO MAY 31ST WAS 45.7 INCHES, 20.9 INCHES BELOW NORMAL. THIS WAS THE 35TH LEAST SNOWIEST SEASONAL SNOWFALL ON RECORD. THE SNOWIEST WAS 1977-78 WITH 172 INCHES. BELOW IS THE MONTH BY MONTH SUMMARY OF THE 2019 SPRING SEASON. MARCH ...A VERY COOL MARCH, AND WE DON`T MEAN IT WAS POPULAR... MARCH BEGAN WITH VERY CHILLY TEMPERATURES AND SOME SNOW DURING THE FIRST WEEK, AND IT ENDED VERY MUCH THE SAME WAY. AVERAGE DAILY TEMPERATURES WERE BETWEEN 10 AND 25 DEGREES BELOW NORMAL FROM THE 3RD TO THE 7TH WITH LIGHT SNOW AT TIMES. A RECORD COLD MAXIMUM TEMPERATURE OCCURRED ON BOTH MARCH 4TH AND 5TH WITH A HIGH OF ONLY 14 AND 19 DEGREES RESPECTIVELY. THE PERIOD OF MARCH 1ST THROUGH MARCH 7TH WAS THE 7TH COLDEST ON RECORD FOR THIS STRETCH OF DAYS. WHILE THE REMAINDER OF MARCH WOULD REMAIN COLD, DAILY AVERAGE TEMPERATURE DEPARTURES FROM NORMAL WOULD NOT REACH MORE THAN 7 DEGREES BELOW NORMAL UNTIL THE FINAL DAY OF THE MONTH, WHICH WAS 16 DEGREES BELOW NORMAL. A TOTAL OF 23 OUT OF 31 DAYS EXPERIENCED BELOW NORMAL AVERAGE TEMPERATURES. THE AVERAGE MONTHLY TEMPERATURE FOR MARCH WAS 33.0 DEGREES, 4.5 DEGREES BELOW NORMAL. THIS RANKED AS THE 29TH COLDEST MARCH ON RECORD. THE HIGHEST TEMPERATURE WAS 67 ON THE 14TH AND THE COLDEST WAS 2 DEGREES ON THE 4TH. THERE WERE 25 DAYS WITH A MINIMUM TEMPERATURE 32 DEGREES OR COLDER. THIS IS ABOUT 5 DAYS GREATER THAN NORMAL FOR MARCH. THERE WERE ALSO 6 DAYS WITH A MAXIMUM TEMPERATURE OF 32 DEGREES OR COLDER AND THIS WAS ABOUT 3 DAYS GREATER THAN NORMAL. PRECIPITATION FOR MARCH WAS SLIGHTLY ABOVE NORMAL WITH 2.84 INCHES, 0.42 INCHES ABOVE NORMAL. THIS RANKED AS THE 49TH WETTEST MARCH ON RECORD. MEASURABLE PRECIPITATION FELL ON 12 DAYS. SNOWFALL WAS WELL BELOW NORMAL WITH 0.5 INCHES, 6.6 INCHES BELOW NORMAL. THIS WAS THE 10TH LEAST SNOWIEST MARCH ON RECORD. THE 0.5 INCH MONTHLY SNOWFALL TOTAL IS ACTUALLY THE 3RD LEAST AMOUNT EVER MEASURED IN MARCH (6 OF THE PREVIOUS RECORD YEARS SAW JUST A TRACE MEASURED AND 3 OF THE YEARS HAD JUST 0.1 INCH FOR THE MONTHLY TOTALS). APRIL ...A SOAKING END... APRIL 2019 WAS A ROLLER-COASTER MONTH WHERE IT WAS DRY TO START, SIGNIFICANTLY WET TO END, WITH TEMPERATURE SWINGS BOTH ABOVE AND BELOW NORMAL. IT SEEMED AS IF SPRING WERE HERE TO STAY FROM THE 5TH THROUGH THE 9TH WHEN THE AVERAGE TEMPERATURE DEPARTURE FOR THOSE DAYS REACHED AS HIGH AS 14.3 DEGREES ABOVE NORMAL ON THE 8TH. THIS WAS FOLLOWED BY SIX DAYS OF BELOW NORMAL TEMPERATURES, WITH A DEPARTURE AS GREAT AS 12.6 DEGREES BELOW NORMAL ON THE 14TH. IN THE FINAL FIVE DAYS OF APRIL, 2.94 INCHES OF PRECIPITATION WAS REPORTED. IN THAT SAME STRETCH, THE AVERAGE DAILY TEMPERATURE WAS AS MUCH AS 15.8 DEGREES BELOW NORMAL ON THE 27TH. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 48.0 DEGREES, WHICH IS 1.0 DEGREE BELOW NORMAL. THIS RANKS AS THE 52ND COLDEST APRIL. 17 OF 30 DAYS OBSERVED AN AVERAGE DAILY TEMPERATURE BELOW NORMAL. THE COLDEST TEMPERATURE THIS MONTH WAS A LOW OF 19 DEGREES ON THE 1ST. THE WARMEST TEMPERATURE WAS 76 DEGREES ON THE 22ND. 4.88 INCHES OF PRECIPITATION WAS OBSERVED WHICH IS 1.65 INCHES ABOVE NORMAL. THIS RANKS AS THE 25TH WETTEST APRIL. MEASURABLE PRECIPITATION OCCURRED ON 11 OF 30 DAYS, WITH FIVE OF THESE DAYS RECEIVING AT LEAST 0.50 INCHES OF PRECIPITATION. TOTAL PRECIPITATION FOR THE MONTH WAS BELOW NORMAL AS LATE AS THE 28TH, WHEN IT WAS 0.37 INCHES BELOW NORMAL. THEN, ON THE FINAL TWO DAYS OF THE MONTH, 2.25 INCHES OF PRECIPITATION WAS OBSERVED. 1.0 INCH OF SNOW WAS RECORDED FOR THE MONTH WHICH IS 0.4 INCHES BELOW NORMAL. MEASUREABLE SNOW OCCURRED ON TWO DAYS; 0.8 INCHES ON THE 27TH AND 0.2 INCHES ON THE 14TH. BARRING ANY MAY SNOWFALL, THIS RANKS AS THE 7TH LATEST SNOWFALL ON RECORD. ONE RECORD WAS TIED THIS MONTH. ON THE 28TH, A TRACE OF SNOW WAS RECORDED WHICH TIES THE PREVIOUS RECORD SET IN 2011. MAY ...MAYDAY, MAYDAY, MAY DAYS BRING RAIN AND COOL TEMPERATURES... WHO WILL STOP THE RAIN? WE DON`T KNOW THAT ANSWER BUT WHAT WE DO KNOW IS THAT MAY 2019 WILL BE REMEMBERED AS A COOL AND VERY WET MONTH WITH OVER 7 INCHES OF RAINFALL AROUND THE SOUTH BEND AREA. WHAT IS SURPRISING IS THAT MAY 2019 WAS NOT EVEN AS WET AS MAY 2018, WHICH WAS THE WETTEST MAY ON RECORD WITH 8.33 INCHES. THE DIFFERENCE THOUGH IS THAT THE RAIN THIS YEAR WAS SPREAD OVER THE ENTIRE MONTH WITH ONLY ONE SMALL STRETCH OF CONSECUTIVE DRY DAYS. IN FACT, THE TOP 4 WETTEST MONTHS OF MAY ON RECORD HAVE ALL OCCURRED SINCE 1996. THE ONLY TWO DAYS IN A ROW IN WHICH NO RAINFALL AT ALL WAS RECORDED WAS ON MAY 14TH AND 15TH. THERE WAS A STRETCH OF FOUR DAYS IN A ROW WITH NO MEASURABLE PRECIPITATION, MAY 3RD THROUGH THE 6TH, BUT A TRACE OF RAIN (LESS THAN 0.01 INCHES) OCCURRED ON THE 4TH AND 6TH. MAY IS NORMALLY THE SECOND WETTEST MONTH OF THE YEAR WITH 3.83 INCHES OF RAIN. THIS YEAR, THAT AMOUNT WAS ALMOST DOUBLED AND MEASURABLE RAIN FELL ON 22 DAYS. WITH RAIN ON MOST DAYS THIS MONTH, A LOT OF CLOUDS HELPED KEEP TEMPERATURES ON THE COOL SIDE. SURPRISINGLY, IT WAS NOT A SIGNIFICANTLY COLD MONTH AS SEVERAL DAYS THAT SAW THUNDERSTORMS ALSO HAD WARM TEMPERATURES BEFORE THEY DEVELOPED. THIS HELPED RAISE THE MONTHLY AVERAGE TEMPERATURE. MAY 2019 RANKED AS THE 40TH COOLEST ON RECORD WITH AN AVERAGE TEMPERATURE OF 57.2 DEGREES, 2.1 DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE WAS 85 ON THE 18TH AND THE COLDEST WAS 34 ON THE 14TH. THERE WERE 20 DAYS DURING THE MONTH WITH AN AVERAGE TEMPERATURES AT OR BELOW NORMAL. TOTAL PRECIPITATION FOR MAY WAS 7.22 INCHES, 3.39 INCHES ABOVE NORMAL. THIS RANKED AS THE 4TH WETTEST MAY ON RECORD. THE GREATEST 24 HOUR RAINFALL WAS 1.77 INCHES ON THE 27TH. THIS WAS A SINGLE DAY RECORD FOR THAT DATE. $$ LASHLEY