National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

270
CXUS53 KARX 012134
CLSRST

CLIMATE REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
334 PM CST SUN MAR 1 2020

...2019-20 METEOROLOGICAL WINTER SUMMARY FOR ROCHESTER MN...

DURING METEOROLOGICAL WINTER (DECEMBER 1 THROUGH FEBRUARY 29),
IT WAS SLIGHTLY WARMER-THAN-NORMAL (19F OR 0.5F WARMER-THAN-
NORMAL), SLIGHTLY WETTER-THAN-NORMAL (3.40" OR 0.48" WETTER-
THAN-NORMAL) AND SLIGHTLY SNOWIER (34.2" OR 1.2" SNOWIER-THAN-
NORMAL).THE INFORMATION BELOW PROVIDES MORE DETAILS ON THESE
STATISTICS.

TEMPERATURES...SLIGHTLY WARMER-THAN-NORMAL

FROM DECEMBER 1ST THROUGH FEBRUARY 29TH, ROCHESTER
INTERNATIONAL AIRPORT HAD AN AVERAGE TEMPERATURE OF 19F.
THIS WAS 0.5F WARMER THAN THE 1981-2010 WINTER NORMAL OF
18.5F.

THE AVERAGE MAXIMUM TEMPERATURE WAS 26.9F.  THIS WAS
0.7F WARMER THAN THE 1981-2010 NORMAL OF 26.2F.

THE AVERAGE MINIMUM TEMPERATURE WAS 11.1F.  THIS WAS
0.3F WARMER THAN THE 1981-2010 NORMAL OF 10.8F.

THE TABLE BELOW CONTAINS THE MONTHLY TEMPERATURES AND THEIR
DEPARTURES FROM NORMAL FOR THE WINTER OF 2019-20.

          WINTER 2019-20 TEMPERATURES
               IN ROCHESTER MN

                  AVERAGE            DEPARTURE
   MONTH        TEMPERATURE         FROM NORMAL
   -----        -----------         -----------
 DECEMBER          21.5F             +1.8F
 JANUARY           18.9F             +3.2F
 FEBRUARY          16.6F             -3.7F

 WINTER            19.0F             +0.5F

THE WARMEST HIGH TEMPERATURE WAS 42F ON DECEMBER 29
AND FEBRUARY 2.
THE COLDEST HIGH TEMPERATURE WAS 2F ON JANUARY 16
AND FEBRUARY 13.

THE WARMEST LOW TEMPERATURE WAS 31F ON DECEMBER 29.
THE COLDEST LOW TEMPERATURE WAS -24F ON FEBRUARY 14.

THE DAILY AVERAGE TEMPERATURES WERE ABOVE-NORMAL ON
49 DAYS (53.8%), BELOW-NORMAL ON 38 DAYS (41.8%), AND
NORMAL ON 4 DAYS (4.4%).

THE TEMPERATURE FELL BELOW ZERO ON 20 DAYS.  ON AVERAGE,
THERE ARE 27 DAYS WITH SUB-ZERO TEMPERATURES IN A WINTER.


PRECIPITATION - SLIGHTLY WETTER-THAN-NORMAL

FROM DECEMBER 1ST THROUGH FEBRUARY 29TH, ROCHESTER
INTERNATIONAL AIRPORT RECEIVED 3.40 OF PRECIPITATION.
THIS WAS 0.48" WETTER THAN THE 1981-2010 WINTER NORMAL OF
2.92".  THE TABLE BELOW CONTAINS THE MONTHLY PRECIPITATION
TOTALS AND THEIR DEPARTURES FROM NORMAL FOR THE WINTER
OF 2019-20.

          WINTER 2019-20 PRECIPITATION
               IN ROCHESTER MN

                PRECIPITATION         DEPARTURE
   MONTH            TOTAL            FROM NORMAL
   -----        ------------         -----------
 DECEMBER        1.19 INCHES        -0.04 INCHES
 JANUARY         1.01 INCHES        +0.15 INCHES
 FEBRUARY        1.20 INCHES        +0.37 INCHES

 WINTER          3.40 INCHES        +0.48 INCHES

THE WETTEST DAY WAS ON FEBRUARY 9 WHEN 0.74 OF PRECIPITATION
FELL.

PRECIPITATION FELL ON 42 DAYS (36.2). MEASURABLE PRECIPITATION
FELL ON 25 DAYS (27.5%).  TRACE AMOUNTS OF PRECIPITATION
FELL ON 17 DAYS (18.7%).

SNOWFALL - SLIGHTLY SNOWIER-THAN-NORMAL

FROM DECEMBER 1ST THROUGH FEBRUARY 29TH, THE SNOW OBSERVER
NEAR ROCHESTER INTERNATIONAL AIRPORT RECEIVED 34.2" OF SNOW.
THIS WAS 1.2 SNOWIER THAN THE 1981-2010 NORMAL OF 33.0.

THE TABLE BELOW CONTAINS THE MONTHLY SNOWFALL TOTALS AND
THEIR DEPARTURES FROM NORMAL FOR THE WINTER OF 2019-20.

           WINTER 2019-20 SNOWFALL
               IN ROCHESTER MN

                  SNOWFALL            DEPARTURE
   MONTH            TOTAL            FROM NORMAL
   -----        ------------         -----------
 DECEMBER         7.1 INCHES         -5.4 INCHES
 JANUARY         12.4 INCHES         +0.4 INCHES
 FEBRUARY        14.7 INCHES         +6.2 INCHES

 WINTER          34.2 INCHES         +1.2 INCHES

THE SNOWIEST DAY WAS 9.6 ON FEBRUARY 18-20.

SNOW FELL ON 38 DAYS (41.8%).  MEASURABLE SNOW FELL ON
22 DAYS (24.2%).  A TRACE OF SNOW FELL ON ANOTHER 16 DAYS
(17.6%).


SNOW DEPTH - SLIGHTLY GREATER THAN THE LONG-TERM AVERAGE

FROM DECEMBER 1ST THROUGH FEBRUARY 29TH, THE OFFICIAL
SNOW OBSERVER NEAR ROCHESTER INTERNATIONAL AIRPORT HAD
AN AVERAGE SNOW DEPTH OF 5.9.  THIS WAS 0.6 GREATER THAN
THE 1938-2020 LONG-TERM AVERAGE.

THE GREATEST SNOW DEPTH FOR THE WINTER WAS 15 ON FEBRUARY 24.

THERE WAS SNOW ON THE GROUND ON 90 DAYS (98.9%) THIS WINTER.
MEASURABLE SNOW WAS ON THE GROUND ON 83 DAYS (91.2%) AND
TRACE AMOUNTS OF SNOW ON THE GROUND ON 7 DAYS (7.7%).


DAYTIME CLOUDINESS -

CLEAR - 37 DAYS - 40.7%
PARTLY CLOUDY - 29 DAYS - 31.9%
CLOUDY - 25 DAYS - 27.5%
2

WIND -

MAXIMUM SUSTAINED - 41 MPH OUT OF THE WEST ON JANUARY 18
PEAK WIND GUST - 53 MPH OUT OF THE WEST ON JANUARY 18


SEA LEVEL PRESSURE -

HIGHEST - 30.89 INCHES OF MERCURY ON JANUARY 17
LOWEST - 29.32 INCHES ON MERCURY JANUARY 2

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

...THE ROCHESTER MN CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2019 TO 2/29/2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              64   12/04/2017
 LOW              -42   01/07/1887
HIGHEST            42   02/02        MM      MM       44  01/05
                        12/29
LOWEST            -24   02/14        MM      MM      -30  01/31
AVG. MAXIMUM     26.9              26.2     0.7
AVG. MINIMUM     11.1              10.8     0.3      8.2
MEAN             19.0              18.5     0.5     15.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     62              58.2     3.8       71
DAYS MIN <= 32     91              86.3     4.7       88
DAYS MIN <= 0      20              22.0    -2.0       28

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           3.40              2.92    0.48     6.30
DAILY AVG.       0.04              0.03    0.01
DAYS >= .01        25              26.0    -1.0       32
DAYS >= .10        10               8.6     1.4       18
DAYS >= .50         2               0.9     1.1        4
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.74   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   5
 24 HR TOTAL       MM
TOTALS           34.2              33.0     1.2
 LIQUID EQUIV    3.42              3.30    0.12
SINCE 7/1        47.6              39.9     7.7
DAYS >= TRACE      38              25.4    12.6
DAYS >= 1.0         9               9.9    -0.9
GREATEST
 SNOW DEPTH        15   02/20
                        02/18
                        02/19
 24 HR TOTAL      9.6   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    4159              4188     -29
 SINCE 7/1         MM              5901      MM
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0

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

WIND (MPH)
AVERAGE WIND SPEED              12.2
HIGHEST WIND SPEED/DIRECTION    41/290    DATE  01/18
HIGHEST GUST SPEED/DIRECTION    53/290    DATE  01/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           39
NUMBER OF DAYS PC             25
NUMBER OF DAYS CLOUDY         27

AVERAGE RH (PERCENT)     79

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              1
LT FREEZING RAIN          6     HAIL                       0
HEAVY SNOW                4     SNOW                       9
LIGHT SNOW               38     SLEET                      0
FOG                      48     FOG W/VIS <= 1/4 MILE     12
HAZE                     30

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

$$

BOYNE