Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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111 CXUS53 KIWX 011450 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 950 AM EST FRI DEC 01 2023 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR THE SEASON, FROM 9/1/2023 TO 11/30/2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1893 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 99 09/01/1953 09/08/1933 09/07/1933 LOW -7 11/25/1950 HIGHEST 93 09/05 MM MM 89 LOWEST 15 11/28 MM MM 12 AVG. MAXIMUM 63.7 61.3 2.4 63.9 AVG. MINIMUM 44.9 42.3 2.6 43.7 MEAN 54.3 51.8 2.5 DAYS MAX >= 90 3 1.6 1.4 0 DAYS MAX <= 32 2 2.4 -0.4 3 DAYS MIN <= 32 15 18.3 -3.3 18 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.07 2008 MINIMUM 3.23 1956 TOTALS 8.48 9.99 -1.51 9.67 DAILY AVG. 0.09 0.11 -0.02 0.10 DAYS >= .01 33 33.7 -0.7 34 DAYS >= .10 20 19.4 0.6 23 DAYS >= .50 5 6.2 -1.2 6 DAYS >= 1.00 2 2.2 -0.2 2 GREATEST 24 HR. TOTAL 1.62 SNOWFALL (INCHES) RECORDS TOTAL 30.6 1977 24 HR TOTAL 6.5 11/13/2022 TO 11/13/2022 10/18/2022 TO 10/18/2022 TOTALS 3.5 5.3 -1.8 30.2 SINCE 7/1 3.5 5.3 -1.8 MM SNOWDEPTH AVG. 0 1 DAYS >= TRACE 5 3.8 1.2 10 DAYS >= 1.0 3 1.7 1.3 7 GREATEST SNOW DEPTH 1 11/27 15 11/28 11/29 24 HR TOTAL 1.4 10/31 TO 10/31 DEGREE DAYS HEATING TOTAL 1094 1287 -193 1131 SINCE 7/1 1097 1309 -212 MM COOLING TOTAL 142 86 56 133 SINCE 1/1 820 723 97 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.9 HIGHEST WIND SPEED/DIRECTION 29/110 DATE 10/13 HIGHEST GUST SPEED/DIRECTION 38/110 DATE 10/13 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.45 NUMBER OF DAYS FAIR 42 NUMBER OF DAYS PC 22 NUMBER OF DAYS CLOUDY 27 AVERAGE RH (PERCENT) 71 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 11 RAIN 15 LIGHT RAIN 36 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 2 LIGHT SNOW 5 SLEET 0 FOG 55 FOG W/VIS <= 1/4 MILE 5 HAZE 10 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && NOTICEABLY DRY AND WARM FALL 2023 DROUGHT CONDITIONS WERE EXACERBATED IN SEPTEMBER BY A VERY DRY START TO FALL. A TOP 15 WETTEST OCTOBER ON RECORD HELPED TO EASE DROUGHT CONCERNS, BEFORE ABNORMALLY DRY CONDTIONS RETURNED TO THE REGION DURING A TOP 5 DRIEST NOVEMBER ON RECORD. TWO DAYS THIS FALL HAD OVER AN INCH OF RAIN; OCTOBER 5TH (THE WETTEST DAY OF THE SEASON) HAD 1.56" AND OCTOBER 14TH HAD 1.24". OVERALL, PRECIPITATION TOTALLED 8.48", WHICH IS 1.51" BELOW NORMAL FOR FALL IN SOUTH BEND AND IS THE 52ND DRIEST FALL ON RECORD. IN THE WAKE OF THE 2ND SNOWIEST FALL ON RECORD LAST YEAR, MUCH LESS SNOW WAS OBSERVED IN FALL 2023. THE FIRST MEASURABLE SNOW FELL ON HALLOWEEN WITH A TOTAL OF 1.4". SNOW AMOUNTED TO 3.5", WHICH TIES FOR THE 45TH LEAST SNOWIEST FALL ON RECORD. FALL 2023 FEATURED NORMAL MIDWEST TEMPERATURE SWINGS AND FLUCTUATIONS. THERE WERE 16 DAYS THIS FALL AT OR ABOVE 80 DEGREES, WHICH IS 4 DAYS ABOVE THE NORMAL AMOUNT. ALL IN ALL, THE AVERAGE TEMPERATURE WAS 54.3 DEGREES. THIS IS 2.5 DEGREES ABOVE NORMAL AND TIES FOR THE 32ND WARMEST FALL IN SOUTH BEND. A MONTH-BY-MONTH SUMMARY IS BELOW. ...29TH DRIEST SEPTEMBER ON RECORD RESULTS IN WORSENING DROUGHT... RECALL THAT ONLY A TRACE OF RAIN HAD FALLEN AT SOUTH BEND FROM AUGUST 18TH TO 31ST. THIS DRYNESS CONTINUED INTO SEPTEMBER AS MEASURABLE PRECIPITATION WAS NOT RECORDED UNTIL THE 6TH (0.60 INCHES). AS A RESULT, DROUGHT CONDITIONS CAME BLAZING BACK TO THE REGION ACCORDING TO THE US DROUGHT MONITOR. ON SEPTEMBER 5TH, JUST OVER 65% OF THE FORECAST AREA WAS EXPERIENCING "ABNORMALLY DRY" CONDITIONS, WHILE ABOUT 3% WAS DEEMED TO BE IN A "MODERATE DROUGHT". BY SEPTEMBER 26TH, 80% OF THE FORECAST AREA WAS EXPERIENCING "MODERATE DROUGHT". LAWNS BECAME DORMANT. SOIL WAS VERY DRY AND CRACKED, AND VERY LOW WATER LEVELS WERE NOTED ACROSS PONDS, CREEKS, STREAMS AND RIVERS. PASTURE CONDITIONS DETERIORATED AND SOYBEAN PODS WERE SHATTERING IN CENTRAL INDIANA. PRECIPITATION FOR THE MONTH TOTALED 1.71 INCHES WHICH IS THE 29TH DRIEST ON RECORD. THIS IS THE DRIEST SINCE 2020 WHEN 1.68 INCHES WAS OBSERVED. PAIRED WITH THE DRY CONDITIONS WERE ABOVE NORMAL TEMPERATURES. A BLOCKING RIDGE WAS A FACTOR ONCE AGAIN. THERE WERE THREE 90-DEGREE DAYS EARLY IN THE MONTH WHICH IS ABOVE THE NORMAL VALUE OF 1.5 DAYS IN SEPTEMBER. (THE ANNUAL TOTAL IS NOW 15, WHICH IS ABOVE THE NORMAL VALUE OF 13.5 DAYS PER YEAR.) THE MIDDLE OF THE MONTH WAS COOLER, WITH A NINE-DAY STRETCH OF BELOW-NORMAL TEMPERATURES. THIS WAS QUICKLY OFFSET BY UNSEASONABLY MILD CONDITIONS ON THE 21ST AND 22ND WHICH SAW A DAILY AVERAGE TEMPERATURE 10 AND 11 DEGREES ABOVE NORMAL, RESPECTIVELY. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 66.6 DEGREES WHICH IS 2.9 DEGREES ABOVE NORMAL. THIS RANKS AS THE 33RD WARMEST ON RECORD, TIED WITH 1930 AND 1915. NO RECORDS WERE SET THIS MONTH. 11TH WETTEST OCTOBER ON RECORD THERE WAS RECORD WARMTH TO BEGIN THE MONTH, AS NEW RECORD HIGH TEMPERATURES WERE SET ON OCTOBER 3RD AND 4TH WITH 87 AND 88 DEGREES RESPECTIVELY. MID-OCTOBER FEATURED NEAR TO SLIGHTLY BELOW NORMAL TEMPERATURES. THE LAST WEEK OF THE MONTH FEATURED A 40+ DEGREE TEMPERATURE SWING; A RECORD HIGH OF 82 WAS SET ON OCTOBER 24TH AND A WEEK LATER, THE 2ND COLDEST HALLOWEEN ON RECORD WAS OBSERVED WITH A HIGH TEMPERATURE OF 36 DEGREES. HALLOWEEN 2023 WAS THE COLDEST SINCE 1917! OVERALL, THE AVERAGE TEMPERATURE FOR THE MONTH WAS 54.6 DEGREES. THIS IS 2.6 ABOVE NORMAL AND RANKS AS THE 37TH WARMEST OCTOBER ON RECORD. PRECIPITATION TOTALED 5.96 INCHES, WHICH WAS 2.24 INCHES ABOVE NORMAL AND WAS THE 11TH WETTEST OCTOBER ON RECORD FOR SOUTH BEND. TWO DAYS THIS MONTH HAD OVER AN INCH OF RAIN; OCTOBER 5TH (THE WETTEST DAY OF THE MONTH) HAD 1.56" AND OCTOBER 14TH HAD 1.24". THE FIRST SNOW OF THE SEASON FELL ON HALLOWEEN! SOUTH BEND MEASURED A TOTAL OF 1.4" FOR THE DAY, WHICH WAS 0.2" SHY OF TYING THE RECORD FOR THE SNOWIEST HALLOWEEN ON RECORD. THIS IS ONLY THE 6TH TIME SINCE RECORD KEEPING BEGAN IN 1893 THAT MEASURABLE SNOW HAS BEEN OBSERVED ON HALLOWEEN. A TOTAL OF 1.4" OF SNOW FOR THE MONTH IS 1.2" ABOVE NORMAL. OCTOBER 2023 RANKS AS THE 15TH SNOWIEST OCTOBER ON RECORD. DROUGHT CONDITIONS GRADUALLY IMPROVED THROUGHOUT THE MONTH WITH THE ABUNDANCE OF PRECIPITATION, WITH NO DROUGHT REMAINING BY HALLOWEEN. THERE WERE SEVERAL HARD FREEZES NEAR THE END OF THE MONTH, WHICH LED TO THE END OF THE GROWING SEASON. 4TH DRIEST NOVEMBER ON RECORD TEMPERATURES IN NOVEMBER WERE ABOVE AVERAGE FOR THE FIRST TWO THIRDS OF THE MONTH, BEFORE A PATTERN SHIFT TO BELOW NORMAL TEMPERATURES AROUND THANKSGIVING AND TO FINISH OUT THE MONTH. THERE WERE 7 DAYS WITH HIGHS AT OR ABOVE 60 DEGREES, WHICH IS ABOVE AVERAGE (NORMALLY THERE ARE 5 DAYS WITH HIGHS AT OR ABOVE 60 IN NOVEMBER). OVERALL, THE AVERAGE TEMPERATURE FOR THE MONTH WAS 41.7 DEGREES. THIS IS 1.9 DEGREES ABOVE NORMAL AND TIES FOR THE 45TH WARMEST NOVEMBER ON RECORD IN SOUTH BEND. THE LACK OF PRECIPITATION THIS MONTH IS LIKELY THE MOST NOTABLE STATISTIC. OVER HALF OF THE MONTHLY TOTAL PRECIPITATION FELL IN JUST 24 HOURS; THE HIGHEST DAILY RAINFALL TOTAL WAS 0.51" ON NOVEMBER 21ST. PRECIPITATION TOTALED ONLY 0.81" FOR THE ENTIRE MONTH! THIS IS 1.97" BELOW NORMAL AND WAS THE 4TH DRIEST NOVEMBER ON RECORD FOR SOUTH BEND. THIS WAS THE DRIEST NOVEMBER SINCE 2012. RECORDS BEGAN IN 1893. ONLY TWO DAYS IN NOVEMBER HAD MEASURABLE SNOW: NOVEMBER 26TH AND NOVEMBER 28TH. THE TOTAL OF 2.1" OF SNOW FOR THE MONTH WAS 3.0" BELOW NORMAL. NOVEMBER 2023 TIES FOR THE 39TH LEAST SNOWIEST ON RECORD. NO RECORDS WERE SET THIS MONTH. BROWN/JOHNSON $$