Climatological Report (Monthly)
Issued by NWS
Issued by NWS
859
CXUS53 KIWX 011003
CLMSBN
CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
603 AM EDT MON SEP 01 2025
...................................
...THE SOUTH BEND CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 105 08/09/1934
LOW 40 08/29/1965
08/02/1927
08/31/1911
HIGHEST 94 08/16 MM MM 97 08/27
LOWEST 45 08/29 MM MM 48 08/21
AVG. MAXIMUM 81.3 80.8 0.5 83.9
AVG. MINIMUM 60.1 60.5 -0.4 62.3
MEAN 70.7 70.7 -0.0
DAYS MAX >= 90 5 2.6 2.4 7
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 12.81 2016
MINIMUM 0.32 1950
TOTALS 3.62 4.01 -0.39 2.21
DAILY AVG. 0.12 0.13 -0.01 0.07
DAYS >= .01 8 10.0 -2.0 9
DAYS >= .10 6 6.5 -0.5 5
DAYS >= .50 2 2.8 -0.8 1
DAYS >= 1.00 2 0.9 1.1 1
GREATEST
24 HR. TOTAL 1.51 08/18 TO 08/18
SNOWFALL (INCHES)
RECORDS
TOTAL 0.0 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 >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 25 14 11 5
SINCE 7/1 25 14 11 8
COOLING TOTAL 210 189 21 265
SINCE 1/1 850 637 213 814
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WIND (MPH)
AVERAGE WIND SPEED 6.4
HIGHEST WIND SPEED/DIRECTION 26/010 DATE 08/16
HIGHEST GUST SPEED/DIRECTION 39/360 DATE 08/16
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.29
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 6
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 17 FOG W/VIS <= 1/4 MILE 2
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
...AN AVERAGE AUGUST...
THE BEGINNING OF AUGUST BEGAN WITH A FEW DAYS OF COOLER THAN NORMAL
TEMPERATURES, WHICH WAS FOLLOWED BY A LONGER RELATIVELY WARM PERIOD
THROUGH THE MIDDLE PART OF THE MONTH. THERE WERE 5 DAYS IN THE 90S
THIS MONTH WITH THE WARMEST TEMPERATURE OF THE MONTH OCCURRING ON
AUGUST 16TH WITH A HIGH OF 94 DEGREES. A UNSEASONABLY STRONG COLD
FRONT SWEPT THROUGH ON AUGUST 24TH/25TH, REPLACING THE HOT AND HUMID
CONDITIONS WITH MUCH COOLER TEMPERATURES FOR THE LAST THIRD OF THE
MONTH. THE LAST 9 DAYS OF AUGUST FEATURED HIGHS IN THE 70S AND LOWS
IN THE 40S. DAILY AVERAGE TEMPERATURE DEPARTURES WERE GENERALLY
SMALL EACH DAY, BUT DEPARTURES ON THE 12TH AND 16TH WERE OVER 10
DEGREES ABOVE NORMAL AND THE DEPARTURE ON THE 29TH WAS OVER 10
DEGREES BELOW NORMAL. AFTER THE 2ND MOST HUMID JULY ON RECORD,
AUGUST WAS MUCH MORE COMFORTABLE IN TERMS OF HUMIDITY AND THE
OVERNIGHT LOWS. THERE WERE 4 NIGHTS IN AUGUST WITH A LOW OF 50 OR
LESS; THE COLDEST LOW TEMPERATURE OF THE MONTH OF 45 DEGREES
OCCURRED ON AUGUST 29TH. ALL IN ALL, AUGUST FINISHED WITH AN AVERAGE
TEMPERATURE OF 70.7 DEGREES IN SOUTH BEND, WHICH IS EXACTLY AT
AVERAGE.
MUCH LIKE JULY, PRECIPITATION WAS VERY HIT OR MISS. MUCH OF THE
MONTH`S RAINFALL TOTAL CAME FROM POP-UP SHOWERS AND STORMS AS THE
AFOREMENTIONED STRONG COLD FRONT TOWARDS THE END OF THE MONTH DID
NOT PRODUCE ANY SUSBSTAINIAL RAIN. THE BULK OF THE MONTH`S TOTAL
RAINFALL FELL IN 48 HOURS BETWEEN AUGUST 18TH AND 19TH. 1.51" FELL
ON AUGUST 18TH AND 1.31" FELL ON AUGUST 19TH; THE LATTER SET A NEW
DAILY RAINFALL RECORD, BREAKING THE PREVIOUS DAILY RECORD OF 1.18"
SET ON AUGUST 19, 1900. AUGUST TOTALED 3.62" OF RAIN DURING THE
MONTH, WHICH IS ONLY 0.16" BELOW NORMAL. THIS WAS THE 57TH WETTEST
AUGUST ON RECORD. RECORDS BEGAN IN 1893.
$$