Climatological Report (Seasonal)
Issued by NWS

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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

$$


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