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