Climatological Report (Seasonal)
Issued by NWS Northern Indiana

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000
CXUS53 KIWX 011753
CLSFWA

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1250 PM EST TUE MAR 1 2016

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

...THE FORT WAYNE CLIMATE SUMMARY FOR THE WINTER SEASON, FROM
12/1/2015 TO 2/29/2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1912 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              73   02/25/2000
 LOW              -24   01/12/1918
HIGHEST            69   12/12        MM      MM       56
LOWEST              0   02/13        MM      MM       -8
                        01/18
AVG. MAXIMUM     41.2              34.9     6.3     30.7
AVG. MINIMUM     25.5              19.9     5.6     16.0
MEAN             33.3              27.4     5.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     25              35.2   -10.2       46
DAYS MIN <= 32     69              77.4    -8.4       83
DAYS MIN <= 0       2               6.5    -4.5       15

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.85   1950
 MINIMUM         1.58   1920
TOTALS           7.20              7.07    0.13     5.49
DAILY AVG.       0.08              0.08    0.00     0.06
DAYS >= .01        38              35.7     2.3       37
DAYS >= .10        13              17.0    -4.0       13
DAYS >= .50         5               4.1     0.9        3
DAYS >= 1.00        1               0.8     0.2        1
GREATEST
 24 HR. TOTAL    1.12   MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           61.1   1982
 24 HR TOTAL       MM
TOTALS           12.0              26.3   -14.3     32.3
SINCE 7/1        16.2              28.4   -12.2     36.5
SNOWDEPTH AVG.      0                 3      -3        2
DAYS >= TRACE      41              24.6    16.4       49
DAYS >= 1.0         4               7.8    -3.8       11
GREATEST
 SNOW DEPTH         3   01/12                          9
 24 HR TOTAL      1.7   MM

DEGREE_DAYS
HEATING TOTAL    2858              3381    -523     3703
 SINCE 7/1         MM              4631      MM       MM
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.7
HIGHEST WIND SPEED/DIRECTION    43/220    DATE  02/19
HIGHEST GUST SPEED/DIRECTION    54/220    DATE  02/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             37
NUMBER OF DAYS CLOUDY         49

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       9
LIGHT RAIN               29     FREEZING RAIN              1
LT FREEZING RAIN          7     HAIL                       0
HEAVY SNOW                0     SNOW                       8
LIGHT SNOW               38     SLEET                      1
FOG                      52     FOG W/VIS <= 1/4 MILE      5
HAZE                     16

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

&&
...AN EL NINO WINTER...BUT NOT ALL EL NINO EVENTS ARE THE SAME...

THE METEOROLOGICAL WINTER SEASON OF 2015-16...WHICH EXTENDS FROM
DECEMBER THROUGH FEBRUARY...SAW WHAT WILL LIKELY BE THE SECOND
WARMEST/STRONGEST EL NINO EVENT ON RECORD. EL NINO OCCURS WHEN THE
WATER TEMPERATURES OF THE PACIFIC OCEAN ALONG THE EQUATOR WARM ABOVE
NORMAL FOR SEVERAL MONTHS IN A ROW. THIS IN TURN CAN AFFECT
ATMOSPHERIC WEATHER PATTERNS INCLUDING THE LOCATION OF WHAT IS KNOWN
AS THE SUBTROPICAL AND POLAR JET STREAMS AS THEY MOVE ACROSS
NORTH AMERICA.

THE INFLUENCE OF THIS EL NINO COULD BE SEEN AND FELT AT TIMES
LOCALLY...BUT OTHER ATMOSPHERIC INFLUENCES...CALLED
TELECONNECTIONS...ALSO PLAYED A ROLE DURING THE WINTER. THE PRIMARY
TELECONNECTION WITH ARGUABLY THE MOST INFLUENCE WAS THE ARCTIC
OSCILLATION...AO...WHICH OVERWHELMED THE EL NINO SIGNAL AT TIMES.
THIS HELPED PROVIDE PERIODS OF COLD AND SNOWY WEATHER AS THE POLAR
JET STREAM DIPPED INTO THE GREAT LAKES REGION.
HOWEVER...THE PERSISTENT BACKGROUND SIGNAL FROM EL NINO SEEMED TO
QUICKLY TAKE BACK OVER AND ALLOWED WARMER AIR ASSOCIATED WITH THE
SUB TROPICAL JET STREAM TO MOVE BACK INTO THE REGION. THIS KEPT THE
COLD AIR FROM BECOMING ENTRENCHED FOR LONG PERIODS AND LED TO A BACK
AND FORTH...UP AND DOWN TYPE PATTERN WITH TEMPERATURES AND
PRECIPITATION.

OVERALL THE WINTER SEASON WAS CHARACTERIZED BY ABOVE NORMAL
TEMPERATURES AND NEAR NORMAL PRECIPITATION WITH BELOW NORMAL
SNOWFALL...WHICH GENERALLY FITS THE EL NINO PATTERN FOR OUR LOCAL
AREA. SNOWFALL TOTALS WERE HIGHER IN THE SNOWBELT REGIONS OF THE
GREAT LAKES DUE TO REDUCED ICE COVER THIS YEAR...ESPECIALLY IN
FEBRUARY.

OVERALL THE AVERAGE SEASONAL TEMPERATURE WAS 33.3 DEGREES...5.9
DEGREES ABOVE NORMAL. THIS RANKED AS THE 5TH WARMEST WINTER SEASON
ON RECORD.

PRECIPITATION WAS 7.20 INCHES...0.13 INCHES ABOVE NORMAL. THIS
RANKED AS THE 37TH WETTEST WINTER SEASON ON RECORD.

SNOWFALL WAS 12.0 INCHES...14.3 INCHES BELOW NORMAL. THIS RANKED AS
THE 17TH LEAST SNOWIEST WINTER SEASON ON RECORD...TIED WITH THE
1943-44 SEASON.

BELOW IS A MONTH BY MONTH SUMMARY OF THE WINTER SEASON.

...EL NINO HELPED BRING RECORD DECEMBER WARMTH AND LITTLE SNOWFALL...

IT WAS A VERY WARM AND WET DECEMBER WITH RECORD WARMTH AND ABOVE
NORMAL PRECIPITATION. THOSE WISHING FOR SNOW AND A WHITE CHRISTMAS
WERE DISAPPOINTED AS NEARLY ALL OF THE PRECIPITATION FELL AS RAIN OR
SLEET WHILE CHRISTMAS DAY WAS SUNNY...MILD AND GREEN FOR LATE
DECEMBER.

THIS PAST FALL AND FIRST MONTH OF WINTER SAW THE DEVELOPMENT OF THE
SECOND STRONGEST EL NINO SINCE MODERN RECORDS BEGAN IN 1950. EL NINO
OCCURS WHEN THE WATER TEMPERATURES OF THE PACIFIC OCEAN ALONG THE
EQUATOR WARM ABOVE NORMAL FOR SEVERAL MONTHS IN A ROW. THIS IN TURN
CAN EFFECT ATMOSPHERIC WEATHER PATTERNS INCLUDING THE LOCATION OF
WHAT IS KNOWN AS THE SUBTROPICAL AND POLAR JET STREAMS AS THEY MOVE
ACROSS NORTH AMERICA. THE STRONG EL NINO COUPLED WITH OTHER
ATMOSPHERIC PARAMETERS IN THE NORTHERN POLE REGIONS LIKELY
CONTRIBUTED TO OUR RECORD WARM DECEMBER IN THE FORT WAYNE AREA.

DECEMBER WAS SO WARM THAT THERE WERE ONLY 2 DAYS WITH AVERAGE
TEMPERATURES BELOW NORMAL...AND THEY WERE JUST BARELY BELOW NORMAL.
THOSE DAYS WERE THE 2ND AND 19TH...JUST 1 DEGREE AND 2 DEGREES BELOW
NORMAL RESPECTIVELY. IN CONTRAST...THERE WERE 18 DAYS WITH AN
AVERAGE TEMPERATURE OF 10 DEGREES OR MORE ABOVE NORMAL AND 7 OF
THOSE DAYS WERE MORE THAN 20 DEGREES ABOVE NORMAL WHILE 2 DAYS...THE
12TH AND 13TH...WERE MORE THAN 30 DEGREES ABOVE NORMAL. CHRISTMAS
DAY WAS EVEN MILD WITH MOSTLY SUNNY AND DRY CONDITIONS. THE HOLIDAY
WAS A FESTIVE GREEN RATHER THAN SNOWY WHITE THANKS TO THE WARM
TEMPERATURES AND LACK OF SNOWFALL DURING THE MONTH. THE CHRISTMAS
DAY HIGH TEMPERATURE WAS 49...THE LOW WAS 37 AND THE AVERAGE
TEMPERATURE WAS 43...16 DEGREES ABOVE NORMAL.

THIS DECEMBER SHATTERED A RECORD FOR THE GREATEST NUMBER OF DAYS
WITH HIGH TEMPERATURES OF 50 DEGREES OR WARMER. NEARLY HALF OF THE
DAYS IN DECEMBER...15...HAD A HIGH TEMPERATURE OF AT LEAST 50. THIS
BREAKS THE OLD RECORD OF 11 SET IN ANOTHER EL NINO DECEMBER...1982.
THERE WERE 4 DAYS WITH HIGH TEMPERATURES OF AT LEAST 60 DEGREES AND
THIS RANKED 3RD. DECEMBER 1982 HOLDS THE RECORD WITH 8.

THE AVERAGE HIGH TEMPERATURE FOR DECEMBER WAS AN AMAZING 48.6
DEGREES...12.4 DEGREES ABOVE THE NORMAL OF 36.2. THIS RANKED AS THE
WARMEST AVERAGE DECEMBER HIGH TEMPERATURE ON RECORD...CRUSHING THE
PREVIOUS RECORD OF 45.6 DEGREES SET IN 1923. THE AVERAGE LOW
TEMPERATURE WAS 34.5 DEGREES...12.4 DEGREES ABOVE THE NORMAL OF
22.1. THIS ALSO RANKED AS THE WARMEST AVERAGE DECEMBER LOW
TEMPERATURE ON RECORD. THIS AVERAGE LOW WAS ALMOST AS WARM AS THE
NORMAL AVERAGE HIGH TEMPERATURE FOR THE MONTH.

THE AVERAGE MONTHLY TEMPERATURE FOR DECEMBER WAS A VERY WARM 41.5
DEGREES...12.4 DEGREES ABOVE NORMAL. THIS RANKED AS THE WARMEST
DECEMBER ON RECORD...SURPASSING 1982 WHICH ALSO HAPPENED TO BE ONE
OF THE STRONGEST RECORDED EL NINO EVENTS SINCE 1950. THE HIGHEST
TEMPERATURE THIS MONTH WAS 69 ON THE 12TH...WHICH WAS THE SECOND
WARMEST HIGH TEMPERATURE EVER RECORDED IN DECEMBER. THE RECORD IS
71...SET IN 1982. THE LOWEST TEMPERATURE THIS MONTH WAS 21 ON THE
19TH. THIS TIED 1994 AS THE WARMEST LOW TEMPERATURE FOR A DECEMBER
ON RECORD.

WHILE MONTHLY PRECIPITATION WAS NOT RECORD BREAKING...IT WAS STILL
IMPRESSIVE AND WELL ABOVE NORMAL FOR DECEMBER WITH ONE DAILY
PRECIPITATION RECORD BEING SET. TOTAL PRECIPITATION WAS 4.15
INCHES...1.38 INCHES ABOVE NORMAL. THIS RANKED AS THE 14TH WETTEST
DECEMBER ON RECORD. THERE WERE 13 DAYS WITH MEASURABLE
PRECIPITATION...4 DAYS WITH A HALF INCH OR MORE...AND 1 DAY WITH AN
INCH OR MORE OF PRECIPITATION. A DAILY PRECIPITATION RECORD WAS SET
ON DECEMBER 28TH WHEN 1.12 INCHES OF PRECIPITATION WAS
MEASURED...BREAKING THE OLD DAILY RECORD OF 0.98 INCHES SET IN 1948.

DECEMBER SNOWFALL WAS WELL BELOW NORMAL WITH JUST 0.2 INCHES...8.3
INCHES BELOW NORMAL. THIS TIED 1912 AND 1943 AS THE 2ND LEAST
SNOWIEST DECEMBER ON RECORD. THE LEAST SNOWIEST DECEMBER ON RECORD
WAS 1931 WITH JUST A TRACE OF SNOWFALL.

...A NEAR NORMAL START TO THE NEW YEAR...

OVERALL IT WAS A NEAR NORMAL JANUARY WITH TEMPERATURES AVERAGING A
DEGREE AND A HALF ABOVE NORMAL WHILE PRECIPITATION AND SNOWFALL WERE
SLIGHTLY BELOW NORMAL. THERE WERE PERIODS OF COLD WEATHER THANKS TO
RELATIVELY BRIEF SHOTS OF ARCTIC AIR. BETWEEN THESE ARCTIC
INTRUSIONS...RELATIVELY MILD WEATHER COURTESY OF THE ONGOING EL NINO
HELPED BOOST TEMPERATURES ABOVE NORMAL.

THE FIRST FEW DAYS OF JANUARY SAW TEMPERATURES NEAR OR SLIGHTLY
ABOVE NORMAL. THE FIRST ARCTIC INTRUSION OF THE NEW YEAR ON THE 4TH
BROUGHT TEENS FOR LOW TEMPERATURES ALONG WITH A HALF INCH OF
SNOWFALL. THIS COLD AIR DID NOT LAST LONG AND TEMPERATURES QUICKLY
RECOVERED AND ROSE ABOVE NORMAL BY THE 6TH. THIS UP AND DOWN PATTERN
WOULD CONTINUE THROUGH THE MONTH WITH THE COLD AND WARMTH NEARLY
OFFSETTING EACH OTHER. THANKS TO THE LAST BIG WARMUP TO END THE
MONTH...THE MONTHLY AVERAGE TEMPERATURE ENDED ABOVE NORMAL.

THE AVERAGE MONTHLY TEMPERATURE WAS 26.4 DEGREES...1.5 DEGREES ABOVE
NORMAL. THIS RANKED AS THE 41ST WARMEST JANUARY...TIED WITH 1938 AND
1946. THE COLDEST TEMPERATURES OCCURRED ON THE 13TH...A LOW OF 1
ABOVE ZERO...AND ON THE 18TH WITH A LOW OF ZERO. THE WARMEST DAY OF
THE MONTH WAS ACTUALLY THE LAST DAY. THE HIGH TEMPERATURE ON THE
31ST WAS 55 WHILE THE LOW WAS 36.

PRECIPITATION WAS 1.62 INCHES...0.64 INCHES BELOW NORMAL. THIS
RANKED AS THE 38TH DRIEST JANUARY. MEASURABLE PRECIPITATION FELL ON
13 DAYS. SNOWFALL WAS 6.9 INCHES...3.2 INCHES BELOW NORMAL. THIS
RANKED AS THE 44TH LEAST SNOWIEST JANUARY...TIED WITH 1981.
MEASURABLE SNOW FELL ON 10 DAYS.

...RELATIVELY WARM AND DRY FEBRUARY WITH BELOW NORMAL SNOWFALL...

FEBRUARY WAS A BIT OF A ROLLER COASTER MONTH IN TERMS OF
TEMPERATURES AND PRECIPITATION BUT OVERALL THE MONTH FIT THE
EXPECTED EL NINO PATTERN. THERE WERE PERIODS OF VERY COLD WEATHER
WITH SNOW BUT ALSO TIMES OF VERY WARM TEMPERATURES WITH SOME RAIN.
THE MONTH TRENDED ABOVE NORMAL FOR TEMPERATURES AND BELOW NORMAL FOR
PRECIPITATION AND SNOWFALL. THIS WAS IN CONTRAST TO AREAS CLOSER TO
LAKE MICHIGAN AND LAKE ERIE WHICH SAW MUCH MORE SNOWFALL THANKS TO
LAKE EFFECT.

THE MONTH BEGAN MILD WITH HIGHS IN THE 40S AND 50S ON THE FIRST AND
SECOND FOLLOWED BY A HIGH OF 60 ON THE THIRD. TEMPERATURES CAME
CRASHING BACK TO NORMAL BY THE 4TH WITH A HIGH NEARLY 30 DEGREES
COOLER. A STRONG CLIPPER SYSTEM BROUGHT LIGHT SNOW TO THE REGION BY
THE 8TH. THIS WAS FOLLOWED BY MUCH COLDER AIR AND AVERAGE
TEMPERATURES BETWEEN 5 AND 20 DEGREES BELOW NORMAL FROM THE 10TH
THROUGH THE 14TH. LIGHT SNOW WAS RECORDED ON NEARLY EVERY DAY DURING
THIS PERIOD AS A COMBINATION OF WEAK WEATHER SYSTEMS AND THE TAIL
END OF LAKE EFFECT SNOW SHOWERS FROM LAKE MICHIGAN IMPACTED THE
LOCAL AREA. THE HIGHEST DAILY SNOWFALL DURING THIS PERIOD WAS JUST
1.1 INCHES ON THE 14TH...BUT THIS WAS ALSO THE HIGHEST DAILY
SNOWFALL TOTAL FOR THE MONTH.

TEMPERATURES FINALLY WARMED BACK CLOSER TO NORMAL BY THE 15TH AND
16TH THEN WARMED WELL ABOVE NORMAL FROM THE 19TH TO THE 21ST. THESE
THREE DAYS HAD AVERAGE TEMPERATURES 10 TO 20 DEGREES ABOVE NORMAL
WITH THE WARMEST TEMPERATURE DURING THIS PERIOD BEING 64 DEGREES.
TEMPERATURES FINISHED THE MONTH GENERALLY NEAR OR ABOVE NORMAL.

WHAT COULD ARGUABLY BE THE STRONGEST WINTER STORM OF THE SEASON
IMPACTED MUCH THE REGION ON THE 24TH AND 25TH BUT THE FORT WAYNE
AREA WAS LARGELY MISSED BY THE HEAVY SNOWFALL. A CLASSIC PANHANDLE
HOOK LOW DEVELOPED IN THE PANHANDLE OF TEXAS ON THE 23RD AND RAPIDLY
INTENSIFIED AS IT MOVED TO NEAR LOUISVILLE KY BY THE MORNING OF THE
24TH THEN TO UPSTATE NEW YORK BY THE MORNING OF THE 25TH. LIGHT
FREEZING RAIN...SLEET AND SNOW WERE OBSERVED IN FORT WAYNE ON THE
MORNING OF THE 24TH...CHANGING OVER TO ALL RAIN AS WARM AIR SURGED
NORTHWARD AHEAD OF THE LOW PRESSURE. DRIER AIR...KNOWN AS THE DRY
SLOT...THEN MOVED INTO THE AREA IN THE AFTERNOON OF THE 24TH. THIS
HELPED SPARE THE IMMEDIATE FORT WAYNE AREA FROM MUCH OF THE SNOW.
HEAVY SNOWFALL IN EXCESS OF 6 INCHES DID FALL IN PARTS OF WHITLEY
AND DEKALB COUNTIES. LIGHT SNOW FINALLY MOVED INTO FORT WAYNE LATE
ON THE 24TH INTO THE 25TH WITH JUST OVER AN INCH BEING RECORDED AT
FORT WAYNE INTERNATIONAL AIRPORT ON THESE TWO DAYS. THIS STORM WAS
QUICKLY FOLLOWED BY A WARMING TREND TO END THE MONTH AS HIGH
TEMPERATURES CLIMBED BACK INTO THE 50S AND 60S.

THE AVERAGE MONTHLY TEMPERATURE WAS 32.0 DEGREES...3.7 DEGREES ABOVE
NORMAL. THIS RANKED AS THE 23RD WARMEST FEBRUARY ON RECORD...TIED
WITH 1952. THE WARMEST TEMPERATURE WAS 66 ON THE 28TH AND THE
COLDEST WAS ZERO ON THE 13TH. THERE WERE JUST 9 DAYS WHERE THE HIGH
TEMPERATURE WAS 32 DEGREES OR COLDER.

PRECIPITATION FOR THE MONTH WAS 1.43 INCHES...0.61 INCHES BELOW
NORMAL. THIS RANKED AS THE 43RD DRIEST FEBRUARY ON RECORD...TIED
WITH 1953. THERE WERE 12 DAYS WITH MEASURABLE PRECIPITATION AND 1
DAY WITH MORE THAN A HALF INCH.

SNOWFALL WAS BELOW NORMAL FOR THE MONTH. JUST 4.9 INCHES OF SNOW WAS
RECORDED...2.8 INCHES BELOW NORMAL. THIS RANKED AS THE 41ST LEAST
SNOWIEST FEBRUARY ON RECORD.

$$
LASHLEY


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