Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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326 CXUS53 KIWX 011832 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 230 PM EDT TUE SEP 1 2020 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR SUMMER 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1893 TO 2020 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 109 07/24/1934 LOW 35 06/11/1972 06/02/1956 06/16/1917 HIGHEST 94 08/27 81 13 93 07/07 06/20 LOWEST 44 06/01 61 -17 45 AVG. MAXIMUM 85.0 81.1 3.9 80.8 AVG. MINIMUM 62.6 61.2 1.4 60.6 MEAN 73.8 71.1 2.7 DAYS MAX >= 90 21 8.7 12.3 6 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 19.30 2016 MINIMUM 5.62 1991 TOTALS 10.33 11.55 -1.22 10.07 DAILY AVG. 0.11 0.13 -0.02 0.11 DAYS >= .01 25 29.7 -4.7 33 DAYS >= .10 15 19.6 -4.6 26 DAYS >= .50 9 7.9 1.1 6 DAYS >= 1.00 3 2.9 0.1 1 GREATEST 24 HR. TOTAL 1.70 SNOWFALL (INCHES) RECORDS TOTAL MM MM 24 HR TOTAL 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 >= TRACE 0 0.0 0.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 MM 0 24 HR TOTAL 0.0 MM DEGREE_DAYS HEATING TOTAL 14 62 -48 46 SINCE 7/1 1 18 -17 6 COOLING TOTAL 852 626 226 602 SINCE 1/1 913 682 231 619 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.6 HIGHEST WIND SPEED/DIRECTION 35/160 DATE 06/09 HIGHEST GUST SPEED/DIRECTION 50/170 DATE 06/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.20 NUMBER OF DAYS FAIR 74 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 5 AVERAGE RH (PERCENT) 68 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ..A HINT WARMER THAN THE SUMMER OF 2012... THE AVERAGE MEAN TEMPERATURE OF 73.8 DEGREES RANKS AS THE 12TH WARMEST SUMMER ON RECORD. THIS IS 2.7 DEGREES ABOVE NORMAL. THIS IS 0.1 DEGREE WARMER THAN THE SUMMER OF 2012, AND IS THE WARMEST SUMMER SINCE 2005 (73.9). DIGGING A BIT DEEPER, THE MEAN MAXIMUM TEMPERATURE WAS 85.0 DEGREES; 12TH WARMEST ON RECORD. THE MEAN MINIMUM TEMPERATURE WAS 62.6 DEGREES; TIED FOR 15TH WARMEST. THERE WERE 21 DAYS WITH A HIGH TEMPERATURE OF 90 DEGREES OR GREATER, WHICH IS THE MOST SINCE 2012 (29). THIS TIES AS THE 32ND MOST 90- DEGREE DAYS IN A SUMMER. TOTAL PRECIPITATION FOR THE SUMMER TOTALED 10.33 INCHES, 1.22 INCHES BELOW NORMAL. THIS RANKS AS THE 59TH DRIEST ON RECORD. A MONTH-BY-MONTH SUMMARY IS BELOW. JUNE ...13TH WARMEST JUNE ON RECORD; DRY UNTIL THE END... JUNE BEGAN WITH A STRETCH OF EIGHT DRY DAYS, ASIDE FROM A TRACE OBSERVED ON THE 3RD. THE FINAL TWO DAYS OF MAY WERE DRY AS WELL. HIGH TEMPERATURES SOARED QUICKLY INTO THE 80S AND 90S. IT WAS BREEZY AS WELL AND ALL OF THIS COMBINED TO QUICKLY DRY THE AREA`S TOP SOIL. MUCH OF INDIANA WAS DECLARED "ABNORMALLY DRY" ON THE UNITED STATES DROUGHT MONITOR THAT WAS PREPARED ON THE 16TH, AND PUBLISHED JUNE 18TH. BY JUNE 16TH, SOUTH BEND WAS ALREADY 1.42" BELOW NORMAL ON RAINFALL, HAVING ONLY RECEIVED 0.67". THE RAINFALL STORY CHANGED IN THE LAST HALF OF THE MONTH AS SLOW- MOVING THUNDERSTORMS DOTTED THE AREA. THIS RESULTED IN SOAKING RAINFALL FOR SOME, WHILE OTHERS REMAINED DRY. SOUTH BEND PICKED UP 2.69" COMBINED ON THE 21ST AND 22ND. THE MONTH`S RAINFALL TOTAL WAS 4.50", WHICH IS IS 0.71" ABOVE NORMAL. THIS TIES 1919 AS THE 38TH WETTEST ON RECORD. ONE RECORD WAS BROKEN THIS MONTH: DAILY PRECIPITATION ON THE 21ST. 1.70" WAS OBSERVED, WHICH BROKE THE PREVIOUS RECORD OF 1.21" IN 1907. SOUTH BEND ALSO PICKED UP FOUR DAYS WHERE THE HIGH REACHED AT LEAST 90 DEGREES. ZERO 90-DEGREE DAYS WERE OBSERVED IN JUNE 2019. FOR THE CALENDAR YEAR, FIVE 90-DEGREE DAYS HAVE BEEN OBSERVED. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 72.1 DEGREES, WHICH IS 3.0 DEGREES ABOVE NORMAL. THIS TIES 1952 AS THE 13TH WARMEST JUNE ON RECORD. BROWN JULY ...DRY CONDITIONS EXPAND ACROSS THE AREA... JULY WAS NOTABLY HOT AND HUMID, WHICH OF COURSE TENDS TO HAPPEN IN THE SUMMER MONTHS. HOWEVER, THE AVERAGE TEMPERATURE OF JULY 2020, 76.6 DEGREES, RANKS AS THE 13TH WARMEST ON RECORD. TEN 90-DEGREE DAYS WERE OBSERVED THIS MONTH, WHICH IS THE GREATEST SINCE 2012 WHEN THE TALLY WAS SIXTEEN. THERE WERE EIGHT CONSECUTIVE 90-DEGREE DAYS FROM JULY 2 TO 9. THERE HAVE BEEN FIFTEEN 90-DEGREE DAYS SO FAR THIS YEAR, TYING AS THE 34TH GREATEST. THERE WAS ONE TEMPERATURE RECORD THIS MONTH. THE MINIMUM TEMPERATURE OF 74 DEGREES ON THE 8TH TIES THE RECORD FOR WARMEST MINIMUM TEMPERATURE SET IN 1928. ON THE TOPIC OF MINIMUM TEMPERATURES, THE AVERAGE MINIMUM TEMPERATURE THIS MONTH WAS 66.4 DEGREES, WHICH RANKS AS THE 10TH WARMEST ON RECORD. RAINFALL WAS HARD TO FIND FOR MUCH OF THE AREA. JULY 1 STARTED WITH MUCH OF INDIANA DECLARED AS "ABNORMALLY DRY" ON THE U.S. DROUGHT MONITOR. BY MID-MONTH, PORTIONS OF NORTHERN INDIANA WERE DECLARED TO BE PART OF A "MODERATE DROUGHT". BOTH OF THESE AREAS WERE FURTHER EXPANDED BY THE END OF THE MONTH. ONLY 2.66 INCHES OF RAIN WERE OBSERVED AT SOUTH BEND; 1.10 INCHES OF WHICH FELL ON JULY 10TH. THIS MONTHLY TOTAL IS 1.34 INCHES BELOW NORMAL AND RANKS AS THE 54TH DRIEST ON RECORD. THIS IS THE LEAST AMOUNT OF RAINFALL AT SOUTH BEND SINCE JULY 2014 WHEN ONLY 1.79 INCHES FELL. BROWN/ROLLER AUGUST ...SEVEN MORE 90-DEGREE DAYS... BASED ON TOTAL RAINFALL AND AVERAGE TEMPERATURE, AUGUST 2020 WILL GENERALLY SLIP SILENTLY INTO THE CLIMATE RECORDS. HOWEVER, THE DRY SPELL FROM THE 11TH THROUGH 23RD EXASPERATED ALREADY DRY CONDITIONS OVER THE AREA. BY AUGUST 23RD, RAINFALL HAD BEEN OBSERVED ON ONLY THREE DAYS, TOTALING 1.65". MONTH-TO-DATE PRECIPITATION WAS 1.16" BELOW NORMAL BY THIS POINT. ZERO RAINFALL WAS OBSERVED FROM THE 11TH-23RD (13 DAYS). THE LONGEST STRETCH OF DAYS WITH ZERO PRECIPITATION IS 36 DAYS, WHICH ENDED IN SEPTEMBER OF 1908. AN AREA OF "MODERATE DROUGHT" WAS ADDED TO PORTIONS OF NORTHERN INDIANA AND SOUTHERN MICHIGAN ON THE AUGUST 25TH U.S. DROUGHT MONITOR MAP. A SOAKING 1.22" OF RAIN THE 29TH, ALONG WITH A FEW OTHER RAIN EVENTS AT THE END OF THE MONTH, BROUGHT THE RAIN TOTAL TO 3.17". THIS IS 0.59" BELOW NORMAL. THIS TIES 1968 AS THE 56TH DRIEST AUGUST ON RECORD. SOUTH BEND PICKED UP SEVEN 90-DEGREE DAYS THIS MONTH. THIS IS THE GREATEST TOTAL FOR THE MONTH SINCE 2001 (7). TO FIND A GREATER TOTAL OF 90-DEGREE DAYS, TURN TO AUGUST 1988 WITH 14 90-DEGREE DAYS. THE ANNUAL TOTAL TO DATE IS 22 90-DEGREE DAYS. THIS IS THE GREATEST SINCE 2012 WHICH HAD 32 THROUGH THE END OF AUGUST. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 72.9 DEGREES, WHICH IS 1.6 DEGREES ABOVE NORMAL. THIS TIES AS THE 33RD WARMEST ON RECORD. THERE WERE TWO TEMPERATURE RECORDS: RECORD WARM MINIMUM TEMPERATURES FOR THE 25TH AND 28TH. THE MINIMUM TEMPERATURE ON THE 25TH TIED THE RECORD OF 73 SET IN 1910. ON THE 28TH, THE MINIMUM TEMPERATURE TIED THE RECORD OF 74 SET IN 1973. BROWN $$