Climatological Report (Annual)
Issued by NWS La Crosse, WI

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000
CXUS53 KARX 012155
CLALSE

CLIMATE REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
819 AM CST FRI JAN 1 2016

...2015 CLIMATE SUMMARY FOR LA CROSSE...


TEMPERATURESPRECIPITATION
MONTHHIGH LOW     AVEDEPT   TOTAL     DEPTSNOW
JAN28.612.720.6+3.20.67-0.459.4
FEB21.5 1.011.3   -11.2   0.54-0.51   9.2
MAR47.525.036.2+1.70.81-1.239.9
APR63.138.851.0+2.44.61+0.820.5
MAY72.052.362.1+2.46.41+2.890.0
JUN79.959.969.9+0.73.70-0.64***
JUL82.962.572.7-1.03.62-0.64***
AUG81.061.471.2-0.22.80-1.49***
SEP79.359.369.3+6.52.73-0.83***
OCT63.642.352.9+2.72.18+0.010.0
NOV51.434.843.1+7.21.93-0.080.9
DEC39.429.134.2   +12.64.93+3.57  11.6
==============================================================
YEAR59.239.949.5+2.1   34.48+1.42***


*** RECORDS *******************************************************

TEMPERATURES...

HIGHS:71 ON MARCH 13TH
82 ON APRIL 1ST...TIED PREVIOUS YEARS
96 ON JUNE 9TH
95 ON AUGUST 14TH...TIED PREVIOUS YEARS

LOWS:NONE

LOWEST HIGHS:NONE

HIGHEST LOWS:76 ON SEPTEMBER 6TH
39 ON DECEMBER 6TH
43 ON DECEMBER 10TH...TIED PREVIOUS YEARS
39 ON DECEMBER 12TH
42 ON DECEMBER 13TH

MONTHLY:8TH COLDEST FEBRUARY ON 11.3 DEGREES
WARMEST SEPTEMBER ON RECORD AT 69.3 DEGREES
3RD WARMEST NOVEMBER AT 43.1 DEGREES
2ND WARMEST DECEMBER AT 34.2 DEGREES

SEASONAL:3RD WARMEST FALL AT 55.1 DEGREES

YEAR:8TH WARMEST AT 49.5 DEGREES...TIED WITH 1921


PRECIPITATION...

ONE-DAY PCPN:1.71" ON DECEMBER 13TH
1.45" ON DECEMBER 14TH
0.64" ON DECEMBER 23RD
0.62" ON DECEMBER 28TH...TIED PREVIOUS YEARS

ONE-DAY SNOWFALL:NONE

MONTHLY PCPN:WETTEST DECEMBER ON RECORD WITH 4.93 INCHES

MONTHLY SNOWFALL:NONE

SEASONAL:NONE

YEARLY:NONE



*** DISCUSSION ****************************************************

UNLIKE THE PREVIOUS YEAR...2015 DID NOT GET OFF TO A FRIGID START.
ASIDE FROM A 10 DAY STRETCH WITH BELOW NORMAL TEMPERATURES /4TH
THROUGH 13TH/...JANUARY WAS RELATIVELY MILD. HIGHS WERE ABOVE
FREEZING 14 DAYS /NORMAL IS 10/ WITH LOWS UNDER 20 DEGREES 14 TIMES
/NORMAL IS 24/ - TIED FOR 7TH LEAST IN A JANUARY. IT WAS A DRY
MONTH...RECEIVING ONLY 60% OF THE JANUARY NORMAL. MEASURABLE SNOW
FELL ON 9 DAYS - RIGHT AROUND NORMAL - BUT ONLY AMOUNTED TO 9.4
INCHES. IN ADDITION...DAILY AMOUNTS HELD UNDER 2 INCHES FOR THE
ENTIRE MONTH. THIS OCCURS LESS THAN 2 OUT OF EVERY 10 YEARS.

THE ICEBOX RETURNED IN FEBRUARY WITH AN AVERAGE TEMPERATURE OVER 11
DEGREES BELOW NORMAL...TYING IT FOR THE 9TH COLDEST FEBRUARY ON
RECORD. LOWS DROPPED BELOW ZERO ON 15 DAYS...WELL ABOVE THE NORMAL
OF 6 DAYS AND TYING IT FOR 5TH MOST IN A FEBRUARY. HIGHS HELD IN THE
SINGLE DIGITS 3 TIMES AND ONLY WARMED ABOVE FREEZING ON 5 DAYS. THE
9.2 INCH SNOW TOTAL WAS ABOUT WHAT ONE COULD EXPECT OUT OF A TYPICAL
FEBRUARY...BUT MOST OF THE CAME ON THE 1ST WITH A 5 INCH DUMPING.
THERE WERE 7 MORE DAYS WITH MEASURABLE SNOWFALL AFTER THAT...ALL BUT
ONE RECORDING LESS THAN AN INCH.

WHILE MARCH WOULD FINISH ABOVE NORMAL FOR ITS AVERAGE
TEMPERATURE...TO SAY MARCH WAS A WARM MONTH WOULD BE MISLEADING.
MUCH OF THE WARMTH CAME IN AN 8 DAY STRETCH...FROM THE 9TH THROUGH
16TH. HIGHS TOPPED 60 ON 6 OF THOSE DAYS...WITH A MAX OF 71 ON THE
13TH. THIS WAS ONE OF THE EARLIEST 70 DEGREE DAYS ON RECORD FOR LA
CROSSE /4TH/ AND WELL AHEAD OF THE AVERAGE WHICH IS APRIL 9TH.
HOWEVER...TEMPERATURES NOSEDIVED AFTER THE MID MONTH WARM UP...WITH
HIGHS MOSTLY IN THE 40S OR COOLER. TO FURTHER ILLUSTRATE THE ROLLER
COASTER THAT WAS MARCH...HIGHS TOPPED 60 ON 7 DAYS...BUT FAILED TO
WARM ABOVE 40 ON 10 DAYS. MARCH LOOKED LIKE IT MIGHT BE A VERY DRY
MONTH WITH ONLY ONE DAY OF ACCUMULATING PRECIPITATION - FOR ONLY A
MERE 0.01 INCHES - THROUGH THE 21ST. SNOW THEN FELL ON 4 CONSECUTIVE
DAYS...ACCOUNTING FOR THE ENTIRE MONTH/S TOTAL OF 9.9 INCHES.

TYPICAL FOR A SPRING MONTH...APRIL EXPERIENCED THE WILD SWINGS IN
TEMPERATURE THAT OCCURRED IN MARCH. THERE WERE MORE DAYS WITH HIGHS
IN THE 40S AND 50S /13/ THAN IN THE 70S AND 80S /10/.
IRONICALLY...THE 82 DEGREE HIGH FOR THE MONTH CAME ON THE 1ST.  IT
WAS ALSO WELL AHEAD OF THE NORMAL FIRST 80 DEGREE DAY IN A YEAR
/APRIL 29TH/. OVER 4 INCHES OF PRECIPITATION FELL IN APRIL...ALMOST
1 1/2 INCHES ABOVE NORMAL. HOWEVER...NEARLY 2/3RDS OF THAT TOTAL
CAME ON THE 7TH AND 9TH...WITH ONLY AROUND AN INCH THEN FALLING
THROUGH THE END OF THE MONTH. APRIL DID SQUEEZE OUT SOME MORE SNOW
THOUGH WITH MINOR ACCUMULATIONS ON THE 9TH AND 22ND /TOTAL OF
1/2 INCH FOR MONTH/.

NOT MUCH CONSISTENCY IN TEMPERATURES FOR MAY EITHER...ALTHOUGH IT
DID MANAGE TO FINISH ABOVE NORMAL. HIGHS WARMED TO 80 DEGREES OR
HIGHER 10 TIMES...BUT COULDN/T MANAGE TO GET OUT OF THE 50S AND 60S
ON 12 DAYS. THE WET TREND WOULD CONTINUE...BUT A BIT MORE SPREAD OUT
COMPARED TO APRIL. MEASURABLE RAIN FELL ON 16 DAYS...WITH 5 OF
THOSE RECORDING OVER 3/4RDS OF AN INCH. THE 6.41 INCH MONTHLY TOTAL
MADE IT THE 12TH WETTEST MAY ON RECORD.

ON THE WHOLE...MARCH...APRIL AND MAY WOULD FINISH AMONGST THE TOP 20
SPRING/S FOR TEMPERATURE AND PRECIPITATION /17TH WARMEST AND 18TH
WETTEST RESPECTIVELY/.

JUNE WAS AROUND NORMAL FOR TEMPERATURES AND A BIT BELOW IN TERMS OF
RAINFALL. THE WARMEST TEMPERATURE OF THE YEAR OCCURRED ON THE 9TH
WITH A HIGH OF 96 DEGREES. HOWEVER...IT WOULD BE THE ONLY TIME IT
WARMED INTO THE 90S ALL MONTH. IRONICALLY...THE COLDEST HIGH
OCCURRED JUST A COUPLE DAYS LATER - 66 DEGREES ON THE 11TH. EVEN
THOUGH PRECIPITATION WAS BELOW NORMAL...WHAT FELL WAS SPREAD ACROSS
JUNE...WITH NO MORE THAN 4 DAYS BETWEEN ACCUMULATING RAINFALL.

JULY GOT OFF TO A RELATIVELY COOL START WITH BELOW NORMAL
TEMPERATURES ON 10 OF THE FIRST 11 DAYS. SUMMERY CONDITIONS SETTLED
IN AFTER THAT WITH HIGHS 82 DEGREES OR WARMER FROM THE 17TH THROUGH
MONTH/S END. RAINFALL WAS BELOW NORMAL FOR THE SECOND STRAIGHT MONTH
- AND GOT OFF TO A VERY DRY START. THERE WAS ONLY 1 DAY OF
ACCUMULATING RAINFALL THROUGH THE 12TH WITH 0.40 INCHES DROPPING ON
THE 6TH.  AFTER THAT THOUGH...RAIN CAME ON A FAIRLY REGULAR
BASIS...FALLING EVERY FEW DAYS.

THE FIRST HALF OF AUGUST AVERAGED AT OR ABOVE NORMAL
TEMPERATURES...WITH A WARM STRETCH OF 3 CONSECUTIVE 90 PLUS DEGREES
ON THE 14TH THROUGH 16TH. IT COOLED DOWN AFTER THAT...MOSTLY BELOW
NORMAL...INCLUDING 3 DAYS WHERE THE HIGH COULD NOT CLIMB OUT OF THE
60S. ON THE WHOLE THOUGH...AUGUST FINISHED NORMAL FOR ITS MONTHLY
AVERAGE. MEASURABLE RAIN FELL ON 10 DAYS IN AUGUST...TYPICAL FOR
THIS LATE SUMMER MONTH. HOWEVER...THE BULK OF THAT CAME ON ONE DAY -
WITH THE 28TH ACCOUNTING FOR OVER 50% OF THE MONTHLY TOTAL.
OVERALL...AUGUST WAS AROUND 1 1/2 INCHES BELOW NORMAL.

WITH 3 CONSECUTIVE MONTHS OF BELOW NORMAL PRECIPITATION...THE SUMMER
CAME IN JUST OVER 10 INCHES FOR RAINFALL...NEARLY 2 INCHES BELOW
NORMAL. TEMPERATURES WERE CLOSE TO A TYPICAL SUMMER.

SEPTEMBER STARTED VERY WARM AS HIGHS TOPPED OUT IN THE UPPER 80S TO
AROUND 90 THE FIRST 6 DAYS. IT WAS THE SECOND WARMEST START TO A
SEPTEMBER IN LA CROSSE...AVERAGING 80.2 DEGREES DURING THAT PERIOD
/1960 WAS WARMER AT 82.3 DEGREES/. ASIDE FROM A FEW COOLER DAYS AT
MID-MONTH AND RIGHT AT THE END...IT WOULD STAY WARM AND FINISH AS
THE WARMEST SEPTEMBER ON RECORD AT 69.3 DEGREES. HIGHS WERE 80
DEGREES OR HIGHER 18 TIMES...WELL ABOVE THE AVERAGE OF 7...AND
SECOND HIGHEST FOR SEPTEMBER. IN ADDITION...HIGHS ONLY FAILED TO
CRACK 70 FOUR TIMES...BELOW THE AVERAGE OF 12 AND TIED FOR 4TH
FEWEST. INTERESTINGLY...THERE WERE NO RECORD HIGH TEMPERATURES FOR
THE MONTH...AND ONLY ONE HIGHEST LOW. SEPTEMBER WAS BELOW NORMAL FOR
PRECIPITATION...WITH MOST OF IT FALLING IN THE FIRST HALF OF THE
MONTH. AFTER THE 18TH...THERE WAS ONLY ONE DAY WITH RAIN...AND THAT
ONLY AMOUNTED TO 0.16 INCHES ON THE 28TH.

WHILE OCTOBER WOULD FINISH ABOVE NORMAL FOR TEMPERATURES...THERE WAS
QUITE A BIT OF FLUCTUATION. FOR EXAMPLE...IT WAS 85 DEGREES ON THE
11TH...THE HIGH FOR THE MONTH AND THE LAST 80 PLUS DEGREE DAY OF
2015. JUST TWO DAYS LATER...THE HIGH WAS ONLY 59. THE FIRST FREEZING
TEMPERATURE OF THE FALL SEASON CAME ON THE MORNING OF THE 17TH WITH
29 DEGREES. THIS WAS A WEEK LATER THAN AVERAGE. THE DRY TREND OF
LATE SEPTEMBER PERSISTED INTO OCTOBER WITH ONLY ONE DAY OF
ACCUMULATING RAINFALL THROUGH THE 22ND...AND THAT WAS ONLY 0.05
INCHES ON THE 8TH. THE LAST 9 DAYS WOULD TRY TO MAKE UP FOR THIS
DEFICIT...RAINING ON 6 OF THOSE FOR ALMOST THE ENTIRE 2.18 INCH
OCTOBER TOTAL. THIS LATE BURST HELPED IT FINISH NORMAL FOR
PRECIPITATION.

NOVEMBER CONTINUED THE WARM CONDITIONS OF SEPTEMBER AND OCTOBER AND
HELPED ROUND OF THE FALL MONTHS AS THE 2ND WARMEST ON RECORD FOR LA
CROSSE AT 55.1 DEGREES. IT WAS THE 3RD WARMEST NOVEMBER ON RECORD AT
43.1 DEGREES. AT OR ABOVE NORMAL TEMPERATURES OCCURRED ON ALL BUT 5
DAYS...EXCEEDING 60 DEGREES OR GREATER FOR HIGHS ON 8 DAYS. LOW
TEMPERATURES AT OR BELOW FREEZING ONLY OCCURRED ON 12 DAYS...TIED
FOR SECOND LEAST IN A NOVEMBER...AND WELL BELOW THE AVERAGE OF 20
SUCH DAYS. PRECIPITATION WAS RIGHT AROUND NORMAL FOR NOVEMBER. THE
BULK CAME AFTER THE 15TH WITH OVER 3/4RDS OF THE MONTHLY TOTAL
FALLING DURING THE LATTER HALF. THE FIRST MEASURABLE SNOW FELL IN
NOVEMBER - 0.7 INCHES ON THE 20TH. THIS IS OVER A WEEK LATER THAN
THE AVERAGE FIRST MEASURABLE SNOW IN LA CROSSE /NOV 11TH/.

DECEMBER ROUNDED OUT 2015 VERY MILD AND WET...SETTING RECORDS FOR
BOTH. DAILY TEMPERATURES WERE ABOVE NORMAL ON ALL BUT ONE DAY /THE
19TH/ WITH HIGHS REACHING OR EXCEEDING 40 DEGREES ON 16 DAYS
/AVERAGE IS ONLY 6/. THE AVERAGE LOW TEMPERATURE OF 29.1 DEGREES IS
ACTUALLY THE NORMAL AVERAGE HIGH TEMPERATURE FOR DECEMBER. LOWS
NEVER DROPPED INTO THE SINGLE DIGITS - WHICH HAS ONLY HAPPENED 4
OTHER TIMES. THE MILD TEMPERATURES KEPT MOST OF DECEMBER/S
PRECIPITATION AS RAIN...WITH THE TOTAL OF 4.93 INCHES CRUSHING THE
PREVIOUS ALL-TIME RECORD FOR THE MONTH. THAT TOTAL IS ALSO THE
WETTEST OUT OF ANY OF THE WINTER MONTHS. THE 13TH AND 14TH ACCOUNTED
FOR A BULK OF THE TOTAL WITH 3.16 INCHES ON THESE TWO DAYS. LESS
THAN 2 INCHES OF SNOW FELL THROUGH THE 27TH...BUT THEN A WINTER
STORM SWEPT ACROSS THE REGION ON THE 28TH...DROPPING NEARLY 10
INCHES ON THE 28TH AND 29TH. THIS DUMPING BROUGHT THE MONTHLY TOTAL
MORE IN LINE WITH ITS NORMAL.

2015 WILL BE REMEMBERED MORE FOR HOW IT ENDED RATHER THAN STARTED. A
STRONG EL NINO PLAYED A SIGNIFICANT ROLE IN MAKING IT VERY MILD. THE
LAST 4 MONTHS OF THE YEAR WERE THE WARMEST ON RECORD FOR LA
CROSSE...TYING IT WITH 1931. THE ONLY MONTH OF THE FOUR TO NOT SET A
TOP 10 RECORD WAS OCTOBER. NINE OF THE MONTHS OF 2015 WERE ABOVE
NORMAL...WITH THE ONLY SIGNIFICANTLY COLD MONTH COMING IN FEBRUARY.
WHILE THE YEAR FINISHED ABOVE NORMAL FOR PRECIPITATION...MUCH OF
THAT WAS DUE TO A WET MAY AND DECEMBER.

***********************************************************************

HIGHEST TEMPERATURES OF 2015............................. 96 ON JUNE 9TH
LOWEST TEMPERATURE OF 2015......................... -15 ON FEBRUARY 23RD
HIGHEST ONE-DAY PRECIPITATION................... 1.67 INCHES ON MAY 29TH
HIGHEST ONE-DAY SNOWFALL.................... 7.5 INCHES ON DECEMBER 28TH
NUMBER OF DAYS WITH HIGHS AT OR ABOVE 90 DEGREES..................... 10
NUMBER OF DAYS WITH HIGHS AT OR BELOW 32 DEGREES..................... 52
NUMBER OF DAYS WITH ZERO OR BELOW TEMPERATURES....................... 26
PEAK WIND GUST.......................... 49 MPH FROM THE NW ON JULY 18TH
NUMBER OF DAYS WITH MEASURABLE PRECIPITATION.........................118
PERCENTAGE OF DAYS WITH MEASURABLE PRECIPITATION.................... 32%
NUMBER OF DAYS WITH ABOVE NORMAL TEMPERATURES........................228
PERCENTAGE OF DAYS WITH ABOVE NORMAL TEMPERATURES................... 62%

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

...THE LA CROSSE CLIMATE SUMMARY FOR THE YEAR OF 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1873 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             108   07/13/1995
                        07/14/1936
 LOW              -43   01/18/1873
HIGHEST            96   06/09        MM      MM       91  07/22
LOWEST            -15   02/23        MM      MM      -21  03/03
AVG. MAXIMUM     59.2              57.0     2.2     54.4
AVG. MINIMUM     39.9              37.8     2.1     35.6
MEAN             49.5              47.4     2.1     45.0
DAYS MAX >= 90     10              13.4    -3.4        5
DAYS MAX <= 32     52              61.0    -9.0       83
DAYS MIN <= 32    122             142.2   -20.2      142
DAYS MIN <= 0      26              20.1     5.9       40

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        42.88   2010
 MINIMUM        26.68   2012
TOTALS          34.48             33.06    1.42    37.69
DAYS >= .01       118             118.8    -0.8      130
DAYS >= .10        64              64.9    -0.9       78
DAYS >= .50        24              20.3     3.7       26
DAYS >= 1.00        9               7.1     1.9        7
GREATEST
 24 HR. TOTAL    2.40   MM                       12/31 TO 12/31
                                                          12/31 TO 12/31
                                                          12/31 TO 12/31
 STORM TOTAL     1.60                               1.83
 (MM/DD(HH))            MM                    12/31(00) TO 12/31(00)
                                                 12/31(00) TO 12/31(00)1
                                                 12/31(00) TO 12/31(00)1

SNOWFALL (INCHES)
RECORDS
 TOTAL           78.7   2008
 24 HR TOTAL     13.9   MM
TOTALS           41.5              43.3    -1.8     45.0
SINCE 7/1        12.5              15.6    -3.1      9.8
DAYS >= TRACE      59              30.1    28.9       79
DAYS >= 1.0        12              13.2    -1.2       15
GREATEST
 SNOW DEPTH         9   12/31
                        12/29
                        12/30
 24 HR TOTAL      7.5   MM                       12/31 TO 12/31
                                                          12/31 TO 12/31
                                                          12/31 TO 12/31
 STORM TOTAL       MM                                1.2
 (MM/DD(HH))            MM                    12/31(00) TO 12/31(00)
                                                 12/31(00) TO 12/31(00)1
                                                 12/31(00) TO 12/31(00)1

DEGREE_DAYS
HEATING TOTAL    6362              7194    -832     7947
 SINCE 7/1         MM              2844      MM       MM
COOLING TOTAL     887               781     106      822
 SINCE 1/1        887               782     105      822

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    39/310    DATE  07/18
HIGHEST GUST SPEED/DIRECTION    49/310    DATE  07/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR          186
NUMBER OF DAYS PC             97
NUMBER OF DAYS CLOUDY         82

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             35     MIXED PRECIP               0
HEAVY RAIN               30     RAIN                      48
LIGHT RAIN              112     FREEZING RAIN              0
LT FREEZING RAIN          7     HAIL                       1
HEAVY SNOW                0     SNOW                       5
LIGHT SNOW               55     SLEET                      2
FOG                     159     FOG W/VIS <= 1/4 MILE     17
HAZE                     51

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

$$

BOYNE



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