Climatological Report (Seasonal)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
000
CXUS53 KIWX 011855
CLSSBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
130 PM EST FRI MAR 1 2019

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE WINTER SEASON, FROM
12/1/2018 TO 2/28/2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              74   02/25/2000
 LOW              -22   01/20/1943
                        01/25/1897
HIGHEST            54   01/07        MM      MM       64
                        12/28
LOWEST            -20   01/31        MM      MM      -15
                        01/30
AVG. MAXIMUM     33.9              33.8     0.1     33.6
AVG. MINIMUM     20.0              20.1    -0.1     18.1
MEAN             27.0              27.0     0.0
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     41              39.1     1.9       42
DAYS MIN <= 32     82              77.6     4.4       76
DAYS MIN <= 0       7               5.3     1.7       12

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        13.35   1950
 MINIMUM         2.77   1945
TOTALS           6.74              6.85   -0.11    11.37
DAILY AVG.       0.08              0.08    0.00     0.13
DAYS >= .01        41              43.3    -2.3       56
DAYS >= .10        20              18.4     1.6       22
DAYS >= .50         2               3.0    -1.0        4
DAYS >= 1.00        1               0.8     0.2        2
GREATEST
 24 HR. TOTAL    1.23

SNOWFALL (INCHES)
RECORDS
 TOTAL          136.3   1978
 24 HR TOTAL       MM
TOTALS           32.0              52.9   -20.9     84.0
SINCE 7/1        44.1              58.1   -14.0     84.0
SNOWDEPTH AVG.      1                 3      -2        3
DAYS >= TRACE      47              33.3    13.7       47
DAYS >= 1.0         9              16.0    -7.0       26
GREATEST
 SNOW DEPTH        10   01/29                         15
 24 HR TOTAL      6.7   MM

DEGREE_DAYS
HEATING TOTAL    3399              3420     -21     3510
 SINCE 7/1         MM              4689      MM       MM
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
HIGHEST WIND SPEED/DIRECTION    43/260    DATE  02/24
HIGHEST GUST SPEED/DIRECTION    58/270    DATE  02/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             26
NUMBER OF DAYS CLOUDY         47

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  8
  1
  0
  9
  0
 10
HAZE                     34

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

&&

WINTER 2018-19

THE WINTER BEGAN MILD WITH BELOW NORMAL SNOWFALL. PRECIPITATION WAS
GENERALLY BELOW NORMAL IN DECEMBER, UNTIL THE LAST DAY WHEN OVER AN
INCH OF RAIN SWAYED THE MONTHLY TOTAL TO SLIGHTLY ABOVE NORMAL.
JANUARY BEGAN MILD BUT TRENDED CLOSER TO NORMAL MID MONTH. HOWEVER,
A RECORD COLD BLAST FROM THE ARCTIC AND SIBERIA BROUGHT RECORD COLD
TEMPERATURES TO END THE MONTH. PRECIPITATION WAS BELOW NORMAL IN
JANUARY BUT IT WAS THE ONLY MONTH DURING THE WINTER SEASON WITH
ABOVE NORMAL SNOWFALL. FEBRUARY WOULD END THE METEOROLOGICAL WINTER
SEASON WITH NEAR NORMAL TEMPERATURES AND PRECIPITATION BUT BELOW
NORMAL SNOWFALL.

THE AVERAGE MONTHLY TEMPERATURE FOR THE 2018-19 WINTER SEASON WAS
27.0 DEGREES, WHICH CAME OUT EXACTLY NORMAL. THIS RANKED AS THE 62ND
COLDEST WINTER SEASON. THE WARMEST TEMPERATURE WAS 54 ON DECEMBER
28TH AND JANUARY 7TH. THE COLDEST TEMPERATURE WAS 20 BELOW ZERO ON
JANUARY 30TH AND 31ST.

WINTER PRECIPITATION WAS 6.74 INCHES, 0.11 INCHES BELOW NORMAL. THIS
RANKED AS THE 64TH DRIEST WINTER SEASON ON RECORD.

WINTER SNOWFALL WAS 32.0 INCHES, 20.9 INCHES BELOW NORMAL. THIS
RANKED AS THE 30TH LEAST SNOWIEST WINTER SEASON.

BELOW IS A MONTH BY MONTH SUMMARY OF THE 2018-19 WINTER.

...A MILD START TO METEOROLOGICAL WINTER...

AFTER A COLD NOVEMBER WITH ABOVE NORMAL SNOWFALL, THE FIRST MONTH OF
THE METEOROLOGICAL WINTER SEASON WAS MILD WITH NEAR NORMAL
PRECIPITATION AND BELOW NORMAL SNOWFALL. DECEMBER PRECIPITATION WAS
ACTUALLY AN INCH BELOW NORMAL ON THE 30TH, BUT MODERATE TO LOCALLY
HEAVY RAINFALL OF OVER AN INCH ON THE LAST DAY OF THE MONTH AND YEAR
BROUGHT THE MONTHLY PRECIPITATION TOTAL BACK UP TO SLIGHTLY ABOVE
NORMAL.

IT WAS A RATHER UNEVENTFUL FIRST MONTH OF WINTER WITH MILD
TEMPERATURES AND LITTLE IN THE WAY OF SNOW. DECEMBER BEGAN MILD AND
WET WITH JUST UNDER THREE QUARTERS OF AN INCH OF RAINFALL ON THE
FIRST TWO DAYS AND A HIGH TEMPERATURE ON THE 2ND OF 51. THE COLDEST
PERIOD OF THE MONTH AND THE ONLY DAYS WITH AN AVERAGE TEMPERATURE
BELOW NORMAL OCCURRED FROM THE 4TH THROUGH THE 11TH. ALL BUT A TENTH
OF AN INCH OF THE MONTHLY SNOWFALL FELL DURING THIS PERIOD, WHICH
WAS JUST 0.7 INCHES. THE REMAINDER OF DECEMBER WAS MILD AND
RELATIVELY DRY UNTIL THE 31ST.

THE AVERAGE MONTHLY TEMPERATURE WAS 32.7, 3.9 DEGREES ABOVE NORMAL.
THIS RANKED AS THE 25TH WARMEST DECEMBER ON RECORD, TIED WITH 1987,
1975 AND 1936. THIS MONTHLY AVERAGE TEMPERATURE WAS JUST OVER A
DEGREE COLDER THAN THE NOVEMBER AVERAGE TEMPERATURE. NORMALLY THE
DECEMBER MONTHLY AVERAGE TEMPERATURE IS ABOUT 12 DEGREES COLDER THAN
NOVEMBER. THE WARMEST TEMPERATURE WAS 54 ON THE 28TH AND THE COLDEST
WAS 10 ON THE 9TH.

MONTHLY PRECIPITATION WAS 2.75 INCHES, 0.14 INCHES ABOVE NORMAL.
THIS RANKED AS THE 51ST WETTEST MONTH ON RECORD. MOST OF THIS
PRECIPITATION FELL ON THE FIRST TWO DAYS AND LAST DAY OF THE MONTH.
THERE WERE 10 DAYS WITH MEASURABLE PRECIPITATION.

SNOWFALL FOR THE MONTH WAS WELL BELOW NORMAL WITH JUST 0.8 INCHES
FALLING. THIS WAS 16.5 INCHES BELOW NORMAL AND RANKED AS THE 4TH
LEAST SNOWIEST DECEMBER ON RECORD. MEASURABLE SNOW ONLY FELL ON 3
DAYS, THE 4TH, 6TH AND 29TH.

...THE END OF JANUARY WAS ABOMINABLE...

JANUARY BEGAN MILD, TRENDED TOWARD NORMAL MID MONTH, BUT THEN ENDED
ABOMINABLY COLD WITH TEMPERATURES AND WIND CHILLS NOT SEEN IN THIS
REGION FOR DECADES. EVERYONES FAVORITE TERM, THE POLAR VORTEX,
HELPED SEND BITTERLY COLD AIR SOUTH FROM THE ARCTIC RIGHT INTO THE
HEART OF THE GREAT LAKES TO END THE MONTH. THE DAILY AVERAGE
TEMPERATURE AT SOUTH BEND ON THE 30TH WAS 38 DEGREES BELOW NORMAL
WHILE ON THE 31ST IT WAS 35 DEGREES BELOW NORMAL. THESE DEPARTURES
FROM NORMAL ARE ESPECIALLY IMPRESSIVE WHEN YOU FACTOR IN THAT THIS
IS NORMALLY THE COLDEST TIME OF THE YEAR ANYWAY. WIND CHILLS DURING
THESE TWO DAYS REACHED TO BETWEEN 40 BELOW AND 50 BELOW ZERO WHILE
ACTUAL AIR TEMPERATURES IN THE REGION FELL TO BETWEEN 15 BELOW AND
25 BELOW ZERO. THE COLDEST TEMPERATURE MEASURED AT SOUTH BEND
INTERNATIONAL AIRPORT WAS 20 BELOW ZERO WHILE THE COLDEST WIND CHILL
WAS 48 BELOW ZERO.

THROUGH THE FIRST 18 DAYS OF JANUARY, THE AVERAGE MONTHLY
TEMPERATURE WAS 29.4 DEGREES, 4.9 DEGREES ABOVE NORMAL.  THE AVERAGE
TEMPERATURE FROM THE 19TH TO THE 31ST WAS JUST 9.2 DEGREES. THIS
RANKED AS THE 4TH COLDEST AVERAGE TEMPERATURE ON RECORD FOR THIS
PERIOD TO END JANUARY. THE WARMEST TEMPERATURE FOR THE MONTH WAS 54
DEGREES ON THE 7TH AND THE COLDEST WAS 20 DEGREES BELOW ZERO ON THE
30TH AND 31ST. THIS WAS A 74 DEGREE DIFFERENCE BETWEEN THE MONTHLY
HIGH AND LOW TEMPERATURE.

THE AVERAGE MONTHLY TEMPERATURE FOR ALL OF JANUARY 2019 ENDED UP
BEING 21.0 DEGREES, 3.4 DEGREES BELOW NORMAL. THIS RANKED AS THE
31ST COLDEST JANUARY ON RECORD.

PRECIPITATION FOR JANUARY WAS 1.78 INCHES, 0.51 INCHES BELOW NORMAL.
THIS RANKED AS THE 50TH DRIEST JANUARY ON RECORD. DESPITE THE BELOW
NORMAL PRECIPITATION, SNOWFALL WAS ABOVE NORMAL. TOTAL SNOWFALL WAS
23.9 INCHES, 3.3 INCHES ABOVE NORMAL. THIS RANKED AS THE 31ST
SNOWIEST JANUARY ON RECORD.

SEVERAL DAILY RECORDS WERE SET IN JANUARY. A DAILY RECORD SNOWFALL
OF 6.7 INCHES OCCURRED ON THE 28TH. RECORD LOW TEMPERATURES WERE
BROKE ON THE 30TH AND 31ST WITH A LOW OF 20 DEGREES BELOW ZERO ON
BOTH DAYS. NEW RECORD LOW MAXIMUM TEMPERATURES WERE ALSO SET ON
THESE DAYS, WITH A HIGH OF JUST 6 BELOW ZERO ON THE 30TH AND 0 ON
THE 31ST.

FEBRUARY

...SURPRISE, FEBRUARY WAS NEAR NORMAL...

DESPITE SEVERAL DAYS OF HIGH WINDS, FREEZING RAIN AND ICE, FEBRUARY
ACTUALLY ENDED UP WITH NEAR NORMAL TEMPERATURES, NEAR NORMAL
PRECIPITATION AND BELOW NORMAL SNOWFALL. SO WHY DID IT SEEM LIKE A
COLD, WINTRY MONTH? IT WAS LIKELY DUE TO NUMEROUS WEATHER SYSTEMS
PRODUCING A MIX OF WINTRY PRECIPITATION AS WELL AS MOSTLY CLOUDY AND
DREARY DAYS.

THE BRIEF BUT BRUTALLY COLD ARCTIC INTRUSION THAT ENDED JANUARY
CARRIED OVER TO START FEBRUARY BUT ONLY BRIEFLY. THE MONTH BEGAN
WITH A LOW TEMPERATURE OF ZERO BUT BY THE 3RD DAY OF THE MONTH, HIGH
TEMPERATURES WERE NEAR 50 DEGREES AND ACTUALLY REACHED 50 DEGREES ON
THE 4TH. BASED ON A SEARCH OF CLIMATOLOGICAL RECORDS, THE
TEMPERATURE CHANGE OF 67 DEGREES OVER JUST 3 DAYS FROM A LOW OF 20
DEGREES BELOW ZERO ON JANUARY 31ST TO A HIGH OF 47 ON FEBRUARY 3RD
WAS THE GREATEST TEMPERATURE CHANGE EVER RECORDED IN JUST 3 DAYS IN
THE SOUTH BEND AREA. SOUTH BEND ALSO RECORDED THE LARGEST
TEMPERATURE CHANGE ON RECORD OVER A 4 DAY PERIOD, GOING FROM A LOW
OF 20 BELOW ZERO ON THE 31ST OF JANUARY TO A HIGH OF 50 ON THE 4TH.
THIS 70 DEGREE TEMPERATURE CHANGE IN JUST 4 DAYS SURPASSED THE
PREVIOUS RECORD OF 68 DEGREES SET IN JANUARY 1943.

THE REMAINDER OF FEBRUARY WOULD SEE A ROLLER COASTER RIDE WITH
TEMPERATURES OSCILLATING BETWEEN ABOVE AND BELOW NORMAL AS SEVERAL
WEAK LOW PRESSURE SYSTEMS WOULD MOVE THROUGH THE REGION EVERY COUPLE
OF DAYS. THE LONGEST STRETCH OF ABOVE NORMAL TEMPERATURES WAS JUST 5
DAYS FROM THE 3RD THROUGH THE 7TH WHILE THE LONGEST STRETCH OF BELOW
NORMAL TEMPERATURES WAS 4 DAYS FROM THE 16TH THROUGH THE 19TH, AND
AGAIN FROM THE 25TH THROUGH THE 28TH.

SEVERAL FAST MOVING CLIPPER SYSTEMS WHICH ORIGINATED IN THE PACIFIC
OCEAN COUPLED WITH A LACK OF DEEP COLD AIR IN THE GREAT LAKES
ALLOWED PRECIPITATION ON SEVERAL OCCASIONS TO FALL AS RAIN DURING
THE MONTH. THE TIMING OF THESE SYSTEMS WERE OFTEN LATE AT NIGHT INTO
THE MORNING DAYLIGHT HOURS WHEN SURFACE TEMPERATURES WERE NEAR OR
BELOW FREEZING. THIS LED TO FREEZING RAIN AT THE SURFACE AND
GENERALLY LIGHT ICE ACCUMULATIONS. THE EXCEPTION WAS ON FEBRUARY
12TH WHEN FREEZING RAIN LED TO WIDESPREAD ICE ACCUMULATIONS BETWEEN
ONE AND TWO TENTHS OF AN INCH AND SOME REPORTS BETWEEN TWO TENTHS
AND THREE TENTHS OF AN INCH.

HIGH WINDS ALSO OCCURRED SEVERAL TIMES DURING THE MONTH. THE DAILY
PEAK WIND SPEED AT SOUTH BEND EXCEEDED 40 MPH ON THE 7TH, 8TH, 13TH,
24TH AND 25TH. THE WIND EVENT ON THE 24TH WAS A HISTORIC AND LIKELY
UNPRECEDENTED EVENT AS WIND GUSTS EXCEEDED 50 MPH DURING MUCH OF THE
DAY. THE TOP RECORDED GUST WAS 58 MPH.

OVERALL TEMPERATURES WERE SLIGHTLY BELOW NORMAL, SNOWFALL WAS WELL
BELOW NORMAL AND PRECIPITATION WAS SLIGHTLY ABOVE NORMAL. THE
AVERAGE MONTHLY TEMPERATURE WAS 27.2, 0.6 DEGREES BELOW NORMAL. THIS
RANKED AS THE 64TH COLDEST FEBRUARY ON RECORD. PRECIPITATION WAS
2.21 INCHES, 0.26 INCHES ABOVE NORMAL. THIS RANKED AS THE 33RD
WETTEST FEBRUARY. SNOWFALL WAS JUST 7.3 INCHES, 7.7 INCHES BELOW
NORMAL. THIS RANKED AS THE 38TH LEAST SNOWIEST FEBRUARY.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.