Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
648
CXUS53 KIWX 011459
CLSSBN
CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1059 AM EDT SUN SEP 01 2024
...................................
...THE SOUTH BEND CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2024 TO 8/31/2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2024
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 97 08/27 81 16 96
LOWEST 43 06/11 61 -18 44
AVG. MAXIMUM 83.3 81.0 2.3 81.7
AVG. MINIMUM 62.0 60.2 1.8 60.3
MEAN 72.6 70.6 2.0
DAYS MAX >= 90 16 11.3 4.7 10
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 11.75 11.83 -0.08 12.17
DAILY AVG. 0.13 0.13 0.00 0.13
DAYS >= .01 30 30.5 -0.5 25
DAYS >= .10 19 20.4 -1.4 19
DAYS >= .50 9 8.1 0.9 8
DAYS >= 1.00 5 2.6 2.4 4
GREATEST
24 HR. TOTAL MM
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 0
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.0
DEGREE DAYS
HEATING TOTAL 25 64 -39 37
SINCE 7/1 8 14 -6 3
COOLING TOTAL 753 581 172 614
SINCE 1/1 814 637 177 678
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 7.3
HIGHEST WIND SPEED/DIRECTION 37/280 DATE 08/27
HIGHEST GUST SPEED/DIRECTION 55/270 DATE 08/27
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.26
NUMBER OF DAYS FAIR 64
NUMBER OF DAYS PC 28
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 70
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 17 MIXED PRECIP 0
HEAVY RAIN 14 RAIN 15
LIGHT RAIN 36 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 43 FOG W/VIS <= 1/4 MILE 8
HAZE 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
...WARM SUMMER WITH NEAR NORMAL RAINFALL...
SUMMER 2024 WAS BOOKENDED BY TWO HEATWAVES, AN EARLY SEASON ONE IN
MID JUNE AND A LATE SEASON ONE IN LATE AUGUST. SURPRINSINGLY, MUCH
OF THE SUMMER OUTSIDE OF THESE HEATWAVES FEATURED SEASONABLE TO
COOLER THAN NORMAL TEMPERATURES. TYPICALLY, THE PEAK OF SUMMER HEAT
OCCURS IN MID JULY TO EARLY AUGUST. HOWEVER, THAT WAS NOT THE CASE
THIS YEAR, AS THE HOTTEST DAY OF THE YEAR IN SOUTH BEND ACTUALLY
HAPPENED IN AUGUST 27TH, WHEN A HIGH TEMPERATURE OF 97 DEGREES WAS
OBSERVED! THE LAST TIME THE HOTTEST SUMMER DAY OCCURRED IN LATE
AUGUST WAS ACTUALLY LAST YEAR ON AUGUST 23, 2023, WHEN THE
TEMPERATURE REACHED 96 DEGREES. THERE WERE 16 90+ DEGREE DAYS IN
SOUTH BEND THIS SUMMER, WITH 9 IN JUNE, NONE IN JULY, AND 7 IN
AUGUST. THIS IS RARE TO HAVE ZERO 90+ DEGREE DAYS IN JULY; IT HAS
ONLY HAPPENED 14 TIMES SINCE RECORDS BEGAN IN 1897! OVERALL, SUMMER
2024 HAD AN AVERAGE TEMPERATURE OF 72.7 DEGREES, WHICH IS 2.1
DEGREES ABOVE NORMAL AND TIES WITH 2022 AS THE 29TH WARMEST ON
RECORD.
ANY APPRECIABLE RAINFALL THIS SUMMER WAS FOUND MAINLY IN DAILY POP-
UP SHOWERS AND STORMS, AND MANY OF THOSE STORMS WERE HIT AND MISS
FOR THE SOUTH BEND AIRPORT. THE SUMMER WAS MOSTLY DRY AND LACKED
WIDESPREAD RAIN, WITH THE EXCEPTION OF THE REMNANTS OF HURRICANE
BERYL THAT MOVED THROUGH ON JULY 9TH AND 10TH. THE 2 DAY TOTAL OF
2.58" IN SOUTH BEND WAS ABOUT 20% OF THE TOTAL RAINFALL FOR THE
ENTIRE SUMMER! THERE WERE MANY DAYS WHERE NO RAIN WAS MEASURED AT
THE AIRPORT, ALBEIT THERE WERE ALSO 5 DAYS WITH A RAINFALL TOTAL OF
1" OR MORE. THE HIGHEST 1 DAY TOTAL OCCURRED ON JULY 9TH WHEN 1.87"
FELL! OVERALL, 11.75" OF RAIN FELL IN SOUTH BEND THIS SUMMER AND
RANKS AS THE 50TH WETTEST ON RECORD. SOUTH BEND WAS VERY CLOSE TO
NEAR NORMAL RAINFALL, WITH A DEFECIT OF ONLY 0.08".
A MONTH BY MONTH SUMMARY IS BELOW:
...WARMER AND WETTER THAN NORMAL JUNE...
JUNE 2024 WILL BE REMEMBERED FOR ONE OF THE EARLIEST LONG DURATION
HEATWAVES ON RECORD. FROM JUNE 16TH TO 22ND, 7 DAYS WITH HIGHS 90+
DEGREES WERE RECORDED, WHICH TIED FOR THE 2ND LONGEST JUNE STRETCH
OF 90+ DEGREE DAYS IN SOUTH BEND. NOT ONLY WERE THE HIGH
TEMPERATURES IMPRESSIVE, BUT THE LOW TEMPERATURES WERE TRULY
UNPRECEDENTED; THERE WERE 3 NIGHTS OF RECORD BREAKING WARM LOW
TEMPERATURES DURING THE HEATWAVE. JUNE 18TH, 19TH, AND 22ND ALL HAD
RECORD WARM LOWS WHICH TIED OR BROKE OLD RECORDS. OVERALL, JUNE 2024
FINISHED WITH AN AVERAGE TEMPERATURE OF 72.4 DEGREES, WHICH IS 3.6
DEGREES ABOVE NORMAL. THIS WAS THE 10TH WARMEST JUNE ON RECORD AND
THE WARMEST JUNE SINCE 2021.
WITH A HOT AND DRY STRETCH OF DAYS MID-MONTH, THIS LED TO FLASH
DROUGHT CONCERNS DEVELOPING. SOUTH BEND WAS NEVER OFFICIALLY IN A
DROUGHT IN JUNE 2024, THANKS TO DAILY POP-UP SHOWERS AND STORMS
DURING THE MIDDLE TO END OF THE MONTH. THERE WERE 2 DAYS WITH
RAINFALL TOTALS OVER AN INCH THIS MONTH: 1.15" (JUNE 23RD) AND 1.06"
(JUNE 25TH). ULTIMATELY, SOUTH BEND ENDED THE MONTH WITH 4.87" OF
RAIN, WHICH IS 0.83" ABOVE NORMAL. THIS WAS THE WETTEST JUNE SINCE
2021 AND THE 33RD WETTEST JUNE OVERALL.
JULY 2024
...SOAKING RAIN FROM BERYL AND NEAR-NORMAL TEMPERATURES...
A NOTABLE LACK OF 90-DEGREE DAYS WAS PAIRED WITH ABOVE-NORMAL
PRECIPITATION FOR JULY. THERE WERE 14 DAYS THIS MONTH WHERE THE
AVERAGE DAILY TEMPERATURE DEPARTURE WAS BELOW NORMAL. AS A RESULT,
THE AVERAGE TEMPERATURES OF 72.5 DEGREES NEARLY MATCHES THE NORMAL OF
72.4 DEGREES.
FOR THE FIRST TIME SINCE JULY 2017, THERE WERE NO 90-DEGREE DAYS
OBSERVED IN JULY. THE MONTH TYPICALLY HAS FIVE 90-DEGREE DAYS.
INSTEAD, THE MAXIMUM OBSERVED TEMPERATURE THIS MONTH WAS 89.
REMNANTS OF HURRICANE BERYL MOVED THROUGH THE AREA ON JULY 9TH AND
10TH BRINGING EFFICIENT RAINFALL RATES DUE TO TROPICAL MOISTURE
OVERHEAD. 1.87 INCHES OF RAIN WAS RECORDED ON THE 9TH, FOLLOWED BY
1.06 ON THE 10TH AT SOUTH BEND. ELSEWHERE IN THE FORECAST AREA,
TRAINED SPOTTERS, COCORAHS OBSERVERS, AND THE PUBLIC REPORTED
RAINFALL AMOUNTS OF 3 INCHES TO NEARLY 9 INCHES OF RAIN THROUGH JULY
10TH. SEVERAL REPORTS OF FLOODING WERE RECEIVED. THE ST. JOSEPH
RIVER AT SOUTH BEND REACHED A CREST OF 7.6 FEET LATE IN THE DAY ON
JULY 10TH WHICH IS JUST BELOW MODERATE FLOOD STAGE (8 FEET). WIND
GUSTS OF 35 MPH TO 45 MPH RESULTED IN UPROOTED TREES THANKS TO THE
SATURATED SOIL.
SOUTH BEND RECORDED 4.67 INCHES OF RAIN WHICH IS 0.89 INCHES ABOVE
NORMAL. THIS RANKS AS THE 36TH WETTEST ON RECORD.
THERE WERE NO RECORDS SET THIS MONTH.
...HOT AND DRY AUGUST...
ALTHOUGH THERE WERE SEVERAL COOLER THAN NORMAL DAYS MID-MONTH, AFTER
A STRETCH OF VERY HOT AND HUMID DAYS TO END THE MONTH, IT COMES WITH
NO SURPRISE THAT AUGUST ENDED UP WARMER THAN NORMAL. THERE WERE 7
DAYS THIS MONTH WITH A HIGH TEMPERATURE AT OR ABOVE 90 DEGREES. THIS
WAS THE MOST 90+ DEGREES DAYS IN AUGUST SINCE 2020; THE NORMAL
AMOUNT OF 90+ DEGREE DAYS IN AUGUST IS 4 DAYS. THE HOTTEST
TEMPERATURE THIS MONTH WAS 97 DEGREES (ON AUGUST 27TH), WHICH WAS
THE HOTTEST AUGUST DAY SINCE IT REACHED 97 DEGREES ON AUGUST 21,
2003! OVERALL, THE AVERAGE TEMPERATURE WAS 73.1 DEGREES, WHICH IS
2.4 DEGREES ABOVE NORMAL AND TIES AS THE 28TH WARMEST AUGUST ON
RECORD.
A NEW RECORD HIGH TEMPERATURE AND A NEW RECORD WARM LOW TEMPERATURE
WERE SET THIS MONTH IN SOUTH BEND. THE LOW TEMPERATURE OF 76 DEGREES
ON AUGUST 26TH BROKE THE OLD DAILY RECORD OF 75, WHICH WAS
PREVIOUSLY SET IN 1983. THE HIGH TEMPERATURE OF 97 DEGREES ON AUGUST
27TH BROKE THE OLD DAILY RECORD OF 96, WHICH WAS PREVIOUSLY SET IN
1948.
SCATTERED POP-UP SHOWERS AND STORMS WERE VERY HIT OR MISS, WHICH AT
TIMES LED TO A RAINFALL DEFECIT. SOUTH BEND RECIEVED 2.21" OF RAIN
IN AUGUST, WHICH IS JUST OVER 50% OF THE NORMAL AMOUNT. MUCH OF THIS
RAIN FELL IN JUST 1 DAY, AS 1.19" OF RAIN WAS MEASURED ON AUGUST
27TH. THIS SET A NEW DAILY RECORD RAINFALL AT SOUTH BEND, BREAKING
THE PREVIOUS RECORD OF 1.15" SET IN 2016. THE MONTH ENDED 1.80"
BELOW NORMAL AND RANKS AS THE 34TH DRIEST ON RECORD.
BROWN/JOHNSON
$$