Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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000 CXUS53 KIWX 011613 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 1113 AM EST WED DEC 01 2021 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR THE SEASON, FROM 9/1/2021 TO 11/30/2021... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1893 TO 2021 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 92 09/14 MM MM 87 LOWEST 21 11/23 MM MM 22 AVG. MAXIMUM 65.0 61.3 3.7 63.8 AVG. MINIMUM 46.9 42.3 4.6 43.5 MEAN 56.0 51.8 4.2 DAYS MAX >= 90 3 1.6 1.4 0 DAYS MAX <= 32 1 2.4 -1.4 0 DAYS MIN <= 32 17 18.3 -1.3 16 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.07 2008 MINIMUM 3.23 1956 TOTALS 9.78 9.99 -0.21 6.41 DAILY AVG. 0.11 0.11 0.00 0.07 DAYS >= .01 35 33.7 1.3 31 DAYS >= .10 22 19.4 2.6 18 DAYS >= .50 5 6.2 -1.2 2 DAYS >= 1.00 2 2.2 -0.2 1 GREATEST 24 HR. TOTAL 1.60 SNOWFALL (INCHES) RECORDS TOTAL 30.6 1977 24 HR TOTAL 1.3 11/24/2020 TO 11/30/2020 TOTALS 1.8 5.3 -3.5 1.3 SINCE 7/1 1.8 5.3 -3.5 MM SNOWDEPTH AVG. 0 0 DAYS >= TRACE 13 3.8 9.2 4 DAYS >= 1.0 1 1.7 -0.7 1 GREATEST SNOW DEPTH 1 11/14 MM 11/15 24 HR TOTAL 0.0 DEGREE DAYS HEATING TOTAL 1014 1287 -273 1075 SINCE 7/1 1014 1309 -295 MM COOLING TOTAL 215 86 129 65 SINCE 1/1 1167 723 444 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 8.4 HIGHEST WIND SPEED/DIRECTION 32/320 DATE 11/21 HIGHEST GUST SPEED/DIRECTION 46/320 DATE 11/21 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.45 NUMBER OF DAYS FAIR 42 NUMBER OF DAYS PC 23 NUMBER OF DAYS CLOUDY 26 AVERAGE RH (PERCENT) 69 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 10 MIXED PRECIP 0 HEAVY RAIN 8 RAIN 19 LIGHT RAIN 45 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 12 SLEET 1 FOG 39 FOG W/VIS <= 1/4 MILE 7 HAZE 11 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && SEPTEMBER AND OCTOBER BOTH RANKED AS THE TOP-TEN WARMEST. NOVEMBER WAS NEAR-NORMAL. THEREFORE, FALL ITSELF RANKS AS THE 9TH WARMEST FALL ON RECORD. THE AVERAGE TEMPERATURE OF 56.0 DEGREES IS 4.2 DEGREES ABOVE NORMAL AND RANKS AS THE 9TH WARMEST FALL ON RECORD. THIS IS THE WARMEST FALL SINCE 2016 (56.5 DEGREES). SEPTEMBER AND NOVEMBER WERE DRIER THAN NORMAL, WHILE OCTOBER WAS OVER TWO INCHES ABOVE NORMAL. OVERALL, FALL PRECIPITATION WAS A BIT OF A DRAW, SO TO SPEAK. PRECIPITATION TOTALED 9.78 INCHES, ONLY 0.21 INCHES BELOW NORMAL. THIS RANKS AS THE 53RD WETTEST FALL ON RECORD. THIS IS THE WETTEST FALL SINCE 2019 (13.15 INCHES). TOTAL SNOW THIS FALL WAS 1.8 INCHES, 3.5 INCHES BELOW THE NORMAL OF 5.3 INCHES. THIS RANKS AS THE 33RD LEAST ON RECORD. A MONTH BY MONTH SUMMARY IS BELOW. SEPTEMBER 2021 ...WARMEST SEPTEMBER IN 88 YEARS... PLENTY OF WARM AFTERNOONS WERE OBSERVED THIS MONTH, INCLUDING THREE DAYS WHERE THE HIGH REACHED 90 DEGREES OR WARMER. SEPTEMBER HAS FEATURED THREE OR MORE 90-DEGREE DAYS SEVEN TIMES IN LAST 21 YEARS. OUR ANNUAL TOTAL IS NOW UP TO FOURTEEN 90-DEGREE DAYS. THE AVERAGE DAILY TEMPERATURE WAS AT OR BELOW NORMAL ON ONLY SEVEN DAYS THIS MONTH. AS A RESULT, THE AVERAGE TEMPERATURE FOR THE MONTH WAS 69.2 DEGREES WHICH IS 5.3 DEGREES ABOVE NORMAL. THIS RANKS AS THE 7TH WARMEST SEPTEMBER ON RECORD. THERE WERE A FEW EPISODES OF RAIN, THE BULK OF WHICH OCCURRED FROM THE 20TH THROUGH 23RD WHEN A SLOW-MOVING LOW PRESSURE SYSTEM MOVED THROUGH. NORTHEAST INDIANA AND NORTHWEST OHIO WERE ABSOLUTELY DRENCHED BY THIS SYSTEM; RAIN TOTALS IN EXCESS OF 5 INCHES WERE REPORTED. THAT WAS NOT QUITE THE STORY AT SOUTH BEND WHERE THE TOTAL FOR THE MONTH WAS 1.96 INCHES, WHICH IS 1.42 INCHES BELOW NORMAL. THIS RANKS AS THE 35TH DRIEST ON RECORD. THIS DEFICIT PRACTICALLY "ERASES" THE SURPLUS OF 1.49 INCHES AT THE END OF AUGUST. OCTOBER 2021 ...TOP TEN WARMEST AND WETTEST... THIS WAS A REMARKABLE MONTH WITH RECORD-WARMTH THROUGH THE 21ST AND RELENTLESS RAIN. SOUTH BEND EXPERIENCED ITS WARMEST OCTOBER ON RECORD THROUGH OCTOBER 21ST WITH AN AVERAGE TEMPERATURE OF 64.6 DEGREES. BY THE 22ND, OCTOBER 1920 SURPASSED THIS YEAR`S WARMTH WITH AN AVERAGE TEMPERATURE OF 64.3 (VS 63.6 OCTOBER 2021). WITHIN THIS STRETCH OF WARMTH, THREE RECORDS WERE TIED OR BROKEN: ON 10/7: THE RECORD WARMEST LOW WAS TIED (66 IN 2007) ON THE 10/10: A NEW RECORD WARMEST LOW OF 70 (PREVIOUS 66 IN 1904) ON 10/11: THE RECORD WARMEST LOW WAS TIED (64 IN 1920) A SEASONABLE CHILL FINALLY ARRIVED TO THE AREA ON THE 22ND WHEN THE AVERAGE DAILY TEMPERATURE WAS SIX DEGREES BELOW NORMAL. THE FINAL TEN DAYS OF THE MONTH ALSO FEATURED THE FIRST 32-DEGREE FROST WITH A MORNING LOW OF 31 ON THE 27TH. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 58.9 DEGREES WHICH IS 6.9 DEGREES ABOVE NORMAL. THIS RANKS AS THE 8TH WARMEST OCTOBER ON RECORD. A PROGRESSIVE WEATHER PATTERN BROUGHT SEVERAL ROUNDS OF RAIN TO THE AREA TO START THE MONTH. THERE WAS A BRIEF DRY PERIOD FROM THE 16TH TO 19TH BEFORE A SOAKING ROUND OF RAIN ARRIVED. THESE FREQUENT RAIN EVENTS HAMPERED FALL HARVEST, ESPECIALLY BY THE END OF THE MONTH WHEN SOILS WERE SATURATED BY 1.60 INCHES ON THE 24TH AND 1.12 INCHES ON THE 25TH. EIGHTEEN DAYS THIS MONTH FEATURED MEASURABLE PRECIPITATION; TIED FOR THE 4TH MOST ON RECORD (22 DAYS IN 1898 IS THE RECORD). THIS IS THE MOST SINCE 2012 WHEN THERE WERE 20 DAYS WITH MEASURABLE PRECIPITATION. ALL TOLD, PRECIPITATION TOTALED 6.03 INCHES AND RANKS AS THE 9TH WETTEST ON RECORD. THIS IS 2.31 INCHES ABOVE NORMAL. THIS IS THE WETTEST OCTOBER SINCE 9.13 INCHES IN 2017. ONE DAILY PRECIPITATION RECORDS WAS SET THIS MONTH: 1.60 INCHES ON THE 24TH BROKE THE PREVIOUS RECORD OF 1.04 IN 2008. NO SNOW WAS REPORTED THIS MONTH WHICH IS BELOW THE NORMAL OF 0.2 INCH. NOVEMBER 2021 ...TEMPERAUTE SWINGS AND BELOW NORMAL TEMPERATURES... THIS MONTH FEATURED A NUMBER OF TEMPERATURE SWINGS THAT RESULTED IN AN AVERAGE MONTHLY TEMPERATURE NEAR NORMAL: 39.9 DEGREES. THIS IS ONLY 0.1 DEGREES ABOVE NORMAL. THE FIRST SIX DAYS OF THE MONTH WERE SEASONABLY CHILLY, BUT AFTERNOON HIGH TEMPERATURES ROCKETED INTO THE 60S ON THE 7TH AND 8TH. A COOL-DOWN FOLLOWED UNTIL ANOTHER AFTERNOON HIGH IN THE 60S OCCURRED ON THE 17TH. THIS FIRST SNOW OF THIS UPCOMING WINTER SEASON WAS REPORTED ON THE 2ND (TRACE) AND THE FIRST MEASURABLE SNOW OCCURRED ON THE 14TH WHEN 1.2 INCHES OF SNOW WAS OBSERVED. THIS DATE IS NEAR-NORMAL FOR THE FIRST 1-INCH SNOWFALL. THE MONTH`S TOTAL SNOW WAS 1.8 INCHES WHICH IS 3.3 INCHES BELOW NORMAL. THIS RANKS AS THE 35TH LEAST SNOWIEST ON RECORD. PRECIPITATION FOR THE MONTH TOTALED 1.79 INCHES WHICH IS 0.99 INCHES BELOW NORMAL. THIS RANKS AS THE 23RD DRIEST ON RECORD. NO RECORDS WERE SET THIS MONTH. BROWN $$