606
CXUS53 KIWX 011458
CLMSBN
CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1058 AM EDT SAT NOV 01 2025
...............................
..THE SOUTH BEND CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 92 10/06/1963
LOW 12 10/11/1906
HIGHEST 87 10/03 MM MM 82 10/11
LOWEST 29 10/25 MM MM 30 10/27
AVG. MAXIMUM 66.5 61.8 4.7 69.3
AVG. MINIMUM 45.4 42.1 3.3 44.3
MEAN 55.9 52.0 3.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 2 2.9 -0.9 1
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.75 1954
MINIMUM 0.42 1950
TOTALS 3.27 3.72 -0.45 1.67
DAILY AVG. 0.11 0.12 -0.01 0.05
DAYS >= .01 8 11.5 -3.5 5
DAYS >= .10 5 7.1 -2.1 4
DAYS >= .50 3 2.4 0.6 1
DAYS >= 1.00 1 0.9 0.1 0
GREATEST
24 HR. TOTAL 1.89 10/18 TO 10/19
SNOWFALL (INCHES)
RECORDS
TOTAL 15.0 1910
TOTALS 0.0 0.2 -0.2 0.0
SINCE 7/1 0.0 0.2 -0.2 0.0
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL 0.0
DEGREE DAYS
HEATING TOTAL 310 414 -104 264
SINCE 7/1 381 551 -170 299
COOLING TOTAL 36 9 27 19
SINCE 1/1 986 723 263 958
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WIND (MPH)
AVERAGE WIND SPEED 7.5
HIGHEST WIND SPEED/DIRECTION 30/330 DATE 10/19
HIGHEST GUST SPEED/DIRECTION 41/270 DATE 10/21
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.31
NUMBER OF DAYS FAIR 19
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 4
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 1
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
NEAR NORMAL RAINFALL; TOP 30 WARMEST OCTOBER
WHILE IT IS NOT UNUSUAL FOR MONTHLY RAINFALL AMOUNTS TO VARY OVER A
RELATIVELY SHORT DISTANCE (100 MILES OR LESS), SOUTH BEND COULD NOT
HAVE HAD A MORE DIFFERENT OCTOBER THAN FORT WAYNE DID. WHILE FORT
WAYNE ONLY PICKED UP 0.77" OF RAIN THROUGHOUT THE MONTH, SOUTH
BEND GOT OVER 3 INCHES! DESPITE ONLY 8 DAYS OF MEASURABLE
PRECIPTATION THIS MONTH, SOUTH BEND'S PROXIMITY TO LAKE MICHIGAN
REMARKABLY PREVENTED A VERY DRY MONTH FROM OCCURING. THERE WERE
SEVERAL DAYS WHERE LAKE EFFECT RAIN SHOWERS MOVED THROUGH SOUTH BEND
BUT DID NOT MAKE IT MUCH FURTHER INLAND. SOUTH BEND, AND AREAS
CLOSER TO LAKE MICHIGAN, HAD A RELATIVELY NORMAL OCTOBER WHILE MORE
INLAND AREAS HAD A VERY DRY MONTH. MORE THAN HALF OF THE MONTH'S
RAINFALL FELL ON OCTOBER 18TH AND 19TH, WHEN WIDESPREAD RAINFALL
MOVED THROUGH THE AREA AND BROUGHT 0.80" AND 1.10" TO SOUTH BEND,
RESPECTIVELY. OVERALL, A TOTAL OF 3.27" OF RAIN FELL THIS MONTH,
WHICH IS 0.45" BELOW NORMAL. OCTOBER 2025 RANKS AS THE 57TH WETTEST
OCTOBER ON RECORD.
NO SNOW WAS RECORDED THIS MONTH. DESIPTE THE AVERAGE FIRST SNOWFALL
OCCURRING ON NOVEMBER 12TH, OCTOBER DOES TYPICALLY AVERAGE 0.2" OF
SNOW IN SOUTH BEND. THE LAST TIME MEASURABLE SNOW FELL IN SOUTH BEND
WAS ON OCTOBER 31ST, 2023 WHEN 1.4" FELL.
OCTOBER IS OFTEN A TRANSITION MONTH BETWEEN SUMMER AND FALL WITH
LARGE TEMPERATURES SWINGS AND THIS YEAR WAS NO EXCEPTION. OCTOBER
BEGAN WARMER THAN NORMAL WITH A PERISTENT UPPER LEVEL RIDGE PATTERN
ACROSS THE MIDWEST AND GREAT LAKES REGIONS. THE FIRST HALF OF THE
MONTH SAW NEAR RECORD HIGHS IN THE UPPER 80S WITH WARM OVERNIGHT
LOWS. A COOLER DAY OR TWO BRIEFLY OCCURRED BUT HEAT AND HUMIDITY
DOMINATED THE FIRST HALF OF OCTOBER. IN FACT, A NEW RECORD WARM LOW
WAS SET IN SOUTH BEND ON OCTOBER 18TH; THE LOW OF 61 DEGREES BROKE
THE OLD RECORD WARM LOW OF 59 DEGREES SET IN 2007. A SERIES OF
SEVERAL COLD FRONTS MOVED THROUGH DURING THE LATTER HALF OF THE
MONTH AS FALL FINALLY SETTLED IN BY THE END OF THE MONTH. COOLER AIR
WAS ABLE TO OVERCOME THE PERISTENT HEAT BY THE LAST THIRD OF THE
MONTH. BY THE END OF OCTOBER, HIGHS IN THE 50S AND 60S AND LOWS IN
THE 30S AND 40S - HAD BECOME COMMON. THE FIRST WIDESPREAD FREEZE OF
THE FALL OCCURRED ON OCTOBER 25TH WITH A LOW OF 29 DEGREES,
EFFECTIVELY ENDING THE GROWING SEASON. OVERALL, THE MONTHLY AVERAGE
TEMPERATURE WAS 55.9 DEGREES, WHICH IS 3.9 DEGREES ABOVE NORMAL.
OCTOBER 2025 RANKS AS THE 24TH WARMEST SINCE RECORDS BEGAN IN 1893.
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