Climatological Report (Seasonal)
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CXUS53 KIWX 011852 CCA
CLSSBN

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORTHERN INDIANA
146 PM EST THU DEC 1 2016

...................................

...THE SOUTH BEND CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2016 TO 11/30/2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2016

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            91   09/07        MM      MM       90
LOWEST             24   11/12        MM      MM       11
AVG. MAXIMUM     65.8              61.3     4.5     64.9
AVG. MINIMUM     47.2              43.2     4.0     44.7
MEAN             56.5              52.3     4.2
DAYS MAX >= 90      2               0.7     1.3        3
DAYS MAX <= 32      0               1.9    -1.9        1
DAYS MIN <= 32      9              16.6    -7.6       15
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        19.07   2008
 MINIMUM         3.23   1956
TOTALS          10.20             10.12    0.08     7.91
DAILY AVG.       0.11              0.11    0.00     0.09
DAYS >= .01        30              34.2    -4.2       23
DAYS >= .10        19              19.6    -0.6       15
DAYS >= .50         9               6.3     2.7        6
DAYS >= 1.00        2               2.0     0.0        3
GREATEST
 24 HR. TOTAL    1.89

SNOWFALL (INCHES)
RECORDS
 TOTAL           30.6   1977
 24 HR TOTAL       MM
TOTALS            0.5               5.2    -4.7      9.1
SINCE 7/1         0.5               5.2    -4.7      9.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       3               4.2    -1.2        3
DAYS >= 1.0         0               1.8    -1.8        1
GREATEST
 SNOW DEPTH         0   MM                             8
 24 HR TOTAL      0.5   MM

DEGREE_DAYS
HEATING TOTAL     893              1252    -359     1042
 SINCE 7/1        901              1269    -368       MM
COOLING TOTAL     141                91      50      139
 SINCE 1/1        950               773     177      784
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    33/120    DATE  10/26
HIGHEST GUST SPEED/DIRECTION    42/190    DATE  10/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           48
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              M     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      14
LIGHT RAIN               35     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      0
FOG                      40     FOG W/VIS <= 1/4 MILE      3
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

FALL 2016

...A WARM AUTUMN WITH NEAR NORMAL PRECIPITATION AND BELOW NORMAL
SNOWFALL...

IT WAS A VERY WARM FALL SEASON WITH NEAR NORMAL PRECIPITATION AND
BELOW NORMAL SNOWFALL IN THE SOUTH BEND AREA. THE MONTH BY MONTH
SUMMARIES CAN BE FOUND BELOW.

THE AVERAGE TEMPERATURE FOR THE SEASON WAS 56.5 DEGREES...4.2
DEGREES ABOVE NORMAL. THIS RANKED AS THE 5TH WARMEST FALL SEASON ON
RECORD...SLIGHTLY WARMER THAN 2015 WHICH RANKED 12TH AT 54.8
DEGREES.

PRECIPITATION DURING THE FALL SEASON WAS 10.20 INCHES WHICH WAS JUST
0.08 INCHES ABOVE NORMAL. THIS RANKED AS THE 41ST WETTEST FALL
SEASON.

MEASURABLE SNOWFALL OCCURRED ON JUST 1 DAY...NOVEMBER 19TH WITH 0.5
INCHES FALLING. THIS WAS 4.7 INCHES BELOW NORMAL FOR FALL AND RANKED
AS THE 9TH LEAST SNOWIEST FALL SEASON. HOWEVER...ONLY ONE OTHER FALL
SEASON ON RECORD HAD MORE MEASURABLE SNOWFALL AND THAT WAS IN 2003
WITH JUST 0.2 INCHES. THE TOP 7 LEAST SNOWIEST FALL SEASONS ALL
RECORDED JUST A TRACE OF SNOWFALL...INCLUDING 2001...2009...2011 AND
2012. SO 6 OF THE TOP 9 LEAST SNOWIEST FALL SEASONS HAVE OCCURRED
SINCE 2001.

HERE ARE THE MONTH BY MONTH SUMMARIES FOR THE SOUTH BEND AREA...

SEPTEMBER

OVERALL IT WAS A WARM SEPTEMBER WITH SLIGHTLY ABOVE NORMAL
PRECIPITATION AT SOUTH BEND INTERNATIONAL AIRPORT. THE MAJORITY OF
THE PRECIPITATION DURING THE MONTH CAME FROM THREE SEPARATE SYSTEMS.
IN BETWEEN THESE SYSTEMS...MUCH OF THE MONTH WAS DRY AND VERY WARM.

THERE WERE 7 DAYS IN SEPTEMBER WITH AN AVERAGE TEMPERATURE BELOW
NORMAL AND THERE WAS ALSO 7 DAYS WITH AN AVERAGE TEMPERATURE OF AT
LEAST 10 DEGREES ABOVE NORMAL. THERE WERE TWO DAYS WITH HIGH
TEMPERATURES IN THE 90S...THE 6TH AND 7TH. SEPTEMBER TYPICALLY
AVERAGES ABOUT ONE 90 DEGREE DAY.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 67.9 DEGREES...4 DEGREES
ABOVE NORMAL. THIS RANKED AS A TIE WITH 1919 AS THE 15TH WARMEST
SEPTEMBER ON RECORD. THIS WAS THE WARMEST SEPTEMBER SINCE 1978. THE
AVERAGE HIGH TEMPERATURE WAS 77.6 WHICH WAS THE 29TH WARMEST ON
RECORD. THE AVERAGE LOW TEMPERATURE WAS 58.2 WHICH WAS THE 7TH
WARMEST ON RECORD.

PRECIPITATION FOR THE MONTH WAS 3.74 INCHES...0.21 INCHES ABOVE
NORMAL. THIS RANKED AS THE 46TH WETTEST SEPTEMBER ON RECORD. A TOTAL
OF 1.89 INCHES OF RAIN FELL ON THE 17TH WHICH WAS A DAILY RECORD FOR
THAT DATE. DESPITE THE SLIGHTLY ABOVE NORMAL PRECIPITATION AT SOUTH
BEND...SOME LOCATIONS NEAR SOUTH BEND AS WELL AS SOUTH AND WEST OF
THE CITY RECEIVED A LOT MORE RAINFALL. FLASH FLOOD WARNINGS WERE
ISSUED FOR PARTS OF MARSHALL AND ST. JOSEPH COUNTIES ON THE EVENING
OF SEPTEMBER 9TH. REPORTS OF BETWEEN 4 AND 8 INCHES OF RAIN DURING
THIS EVENT WERE RECEIVED AS TROPICAL MOISTURE FROM WHAT WAS
HURRICANE NEWTON CONVERGED WITH A SLOW MOVING COLD FRONT.

OCTOBER

...WARMER THAN NORMAL OCTOBER WITH NEAR NORMAL PRECIPITATION...

THE MONTH BEGAN WITH A SLOW MOVING UPPER LEVEL LOW PRESSURE SYSTEM
THAT WAS NEARLY STATIONARY ACROSS THE OHIO VALLEY REGION. THIS LOW
GRADUALLY DRIFTED NORTHEAST INTO THE GREAT LAKES BEFORE FINALLY
BEING SWEPT EAST. SHOWERS AND THUNDERSTORMS WERE COMMON DURING EACH
OF THE FIRST THREE DAYS OF THE MONTH NEAR THIS LOW WITH LOCALLY
HEAVY RAIN OCCURRING IN SOME LOCATIONS. AS HURRICANE MATTHEW MOVED
NORTH ALONG THE SOUTHEASTERN UNITED STATES COASTLINE...HIGH PRESSURE
BECAME PARKED OVER OUR AREA WITH GENERALLY DRY AND WARM CONDITIONS
FOR EARLY OCTOBER. HIGH TEMPERATURES REACHED CLOSE TO 80 ON FOUR
CONSECUTIVE DAYS FROM THE 4TH THROUGH THE 7TH. AVERAGE TEMPERATURES
ON THESE DAYS WERE ABOUT 12 DEGREES ABOVE NORMAL.

THE REMAINDER OF THE MONTH SAW SWINGS BETWEEN MUCH ABOVE NORMAL AND
SLIGHTLY BELOW NORMAL TEMPERATURES AS SEVERAL COLD FRONTS BROUGHT
MORE SEASONABLE AIR TO THE REGION. AHEAD OF THESE FRONTS...SOUTHWEST
WINDS BROUGHT BREEZY BUT WARM CONDITIONS WITH AVERAGE TEMPERATURES
10 TO 20 DEGREES ABOVE NORMAL. OCTOBER ENDED WITH THE AVERAGE
MONTHLY TEMPERATURE WELL ABOVE NORMAL AND PRECIPITATION NEAR NORMAL.

THERE WERE A FEW DAYS WITH FROST AND ONE DAY...THE 25TH...WITH A
LIGHT FREEZE AS THE LOW TEMPERATURE AT SOUTH BEND DIPPED TO 30
DEGREES. WITH THE LACK OF ANY APPRECIABLY COLD AIR...THERE WAS NO
SNOWFALL DURING THE MONTH. OCTOBER NORMAL SNOWFALL IN SOUTH BEND IS
AROUND A HALF INCH.

THE AVERAGE MONTHLY TEMPERATURE WAS 55.8...3.7 DEGREES ABOVE NORMAL.
THIS RANKED AS THE 24TH WARMEST OCTOBER SINCE 1893 BUT IT WAS THE
FOURTH WARMEST OCTOBER SINCE 1973. IT WAS PRIMARILY THE LOW
TEMPERATURES WHICH WERE WELL ABOVE NORMAL FOR THE MONTH. THE AVERAGE
LOW TEMPERATURE WAS 46.4 DEGREES. THIS RANKED AS THE 14TH WARMEST
AVERAGE LOW TEMPERATURE FOR OCTOBER. THE RECORD WARMEST WAS 51.6 SET
IN 1971.

PRECIPITATION FOR THE MONTH WAS 3.48 INCHES...0.16 INCHES ABOVE
NORMAL. THIS RANKED AS THE 46TH WETTEST OCTOBER FOR THE SOUTH BEND
AREA. MEASURABLE RAIN FELL ON 12 DAYS AND A HALF INCH OR GREATER
FELL ON 4 DAYS. THE RAINFALL WAS SPREAD OUT OVER THE ENTIRE MONTH.
THIS BENEFICIAL RAIN COUPLED WITH THE MILD TEMPERATURES LED TO AN
EXTENDED GROWING SEASON AND VIBRANT FALL COLORS.

THERE WAS NO SNOWFALL IN OCTOBER. THIS WAS 0.4 INCHES BELOW NORMAL.

NOVEMBER

IT WAS A RELATIVELY QUIET BUT WARM NOVEMBER WITH NEAR NORMAL
PRECIPITATION IN THE SOUTH BEND AREA. THE SEASONS FIRST SNOWFALL
OCCURRED MID MONTH BUT MEASURABLE SNOW WAS RECORDED ON JUST ONE DAY
AND MONTHLY SNOWFALL WAS BELOW NORMAL. THE AREA ALSO EXPERIENCED ONE
DAY OF SEVERE WEATHER ON THE 18TH WITH TREES AND POWER LINES BEING
KNOCKED DOWN ACROSS THE REGION.

TEMPERATURES REACHED 70 DEGREES OR WARMER ON 4 DAYS AND 60 DEGREES
OR WARMER ON 11 DAYS...ALL COMING BEFORE THE 19TH. A STRONG COLD
FRONT PUSHED THROUGH THE REGION LATE ON THE 18TH AND GENERATED
STRONG TO SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAINFALL. THE FIRST
GOOD SHOT OF COLD AIR FOLLOWED WITH LIGHT SNOW...PRIMARILY LAKE
EFFECT...OCCURRING ON THE 19TH. THIS COLD AIR WAS SHORT LIVED AND
TEMPERATURES WERE GENERALLY NEAR NORMAL TO SLIGHTLY ABOVE NORMAL FOR
THE REMAINDER OF THE MONTH.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 45.8 DEGREES...5 DEGREES
ABOVE NORMAL. THIS RANKED AS THE 9TH WARMEST NOVEMBER ON RECORD.
THIS WAS ALSO THE WARMEST NOVEMBER SINCE 2001 WHICH WAS THE SECOND
WARMEST NOVEMBER ON RECORD. HOWEVER...NOVEMBER 2015 WAS THE 13TH
WARMEST NOVEMBER ON RECORD WITH AN AVERAGE TEMPERATURE OF 44.5.

A TOTAL OF 2.38 INCHES OF PRECIPITATION WAS MEASURED...THIS WAS 0.29
INCHES BELOW NORMAL. THIS RANKED AS THE 73RD DRIEST NOVEMBER. THERE
WERE JUST 8 DAYS IN THE MONTH WITH MEASURABLE PRECIPITATION AND 3 OF
THESE DAYS HAD MORE THAN A HALF INCH. THE GREATEST 24HR
PRECIPITATION WAS 0.88 INCHES ON THE 23RD.

THE FIRST OFFICIAL MEASURABLE SNOWFALL OCCURRED ON NOVEMBER 19TH
WITH A HALF INCH BEING MEASURED. THIS WAS THE ONLY DAY WITH
MEASURABLE SNOW AND LEFT THE MONTHLY TOTAL 4.3 INCHES BELOW NORMAL.
THIS RANKED AS THE 13TH LEAST SNOWIEST NOVEMBER ON RECORD.

UNFORTUNATELY A PROLONGED SYSTEM OUTAGE PREVENTED THE AUTOMATED
SURFACE OBSERVING SYSTEM FROM RECORDING AND TRANSMITTING WEATHER
OBSERVATIONS FROM THE 16TH THROUGH THE 28TH AT SOUTH BEND.
TEMPERATURE DATA DURING THIS PERIOD WAS TAKEN FROM A NEARBY
COOPERATIVE WEATHER OBSERVATION LOCATION IN NILES MICHIGAN.
PRECIPITATION AND SNOWFALL DATA WAS USED FROM THE SNOW PAID
OBSERVERS IN SOUTH BEND.

$$
LASHLEY



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