Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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000 CXUS53 KIWX 011236 CLSSBN CLIMATE REPORT NATIONAL WEATHER SERVICE NORTHERN INDIANA 822 AM EDT MON JUN 1 2020 ................................... ...THE SOUTH BEND CLIMATE SUMMARY FOR SPRING 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1893 TO 2020 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 97 05/27/2012 LOW -13 03/08/1943 HIGHEST 90 05/26 MM MM 85 LOWEST 17 03/07 MM MM 2 AVG. MAXIMUM 58.4 58.7 -0.3 56.1 AVG. MINIMUM 38.3 38.5 -0.2 36.0 MEAN 48.3 48.6 -0.3 DAYS MAX >= 90 1 0.3 0.7 0 DAYS MAX <= 32 0 3.6 -3.6 6 DAYS MIN <= 32 35 28.5 6.5 32 DAYS MIN <= 0 0 0.1 -0.1 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.83 1976 MINIMUM 4.24 1971 TOTALS 10.99 9.48 1.51 14.94 DAILY AVG. 0.12 0.10 0.02 0.16 DAYS >= .01 49 38.2 10.8 45 DAYS >= .10 23 20.7 2.3 31 DAYS >= .50 7 6.2 0.8 12 DAYS >= 1.00 2 1.5 0.5 3 GREATEST 24 HR. TOTAL 1.20 SNOWFALL (INCHES) RECORDS TOTAL 34.6 1960 24 HR TOTAL MM TOTALS 6.7 8.5 -1.8 1.5 SINCE 7/1 45.1 66.6 -21.5 45.7 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= TRACE 14 7.4 6.6 14 DAYS >= 1.0 3 2.6 0.4 0 GREATEST SNOW DEPTH 2 03/23 -1 03/01 24 HR TOTAL 3.0 MM DEGREE_DAYS HEATING TOTAL 1561 1565 -4 1736 SINCE 7/1 MM 6254 MM MM COOLING TOTAL 61 55 6 17 SINCE 1/1 61 56 5 17 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.6 HIGHEST WIND SPEED/DIRECTION 38/240 DATE 03/29 HIGHEST GUST SPEED/DIRECTION 56/240 DATE 05/23 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 33 NUMBER OF DAYS PC 28 NUMBER OF DAYS CLOUDY 31 AVERAGE RH (PERCENT) 68 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...NEAR-AVERAGE SPRING TEMPERATURES, ABOVE-NORMAL PRECIPITATION.... BY READING THE MONTHLY SUMMARIES THE FOLLOW, IT IS CLEAR THE SPRING 2020 OFFERED A ROLLER COASTER OF TEMPERATURES. THEREFORE, IT IS REASONABLE THAT THE AVERAGE TEMPERATURE OF 48.3 DEGREES IS ONLY 0.3 DEGREES BELOW NORMAL. THE FIRST 90-DEGREE DAY OF OBSERVED ROUGHLY 2.5 WEEKS EARLIER THAN NORMAL (JANUARY 1ST AS A STARTING POINT). PRECIPITATION TOTALED 10.99 INCHES, WHICH IS 1.51 INCHES ABOVE NORMAL. THIS RANKS AS THE 47TH WETTEST ON RECORD. THIS SPRING`S TOTAL WAS 3.95 INCHES LESS THAN 2019. THIS WAS NO DOUBT WELCOME BY THOSE IN THE AGRICULTURE COMMUNITY WHO WERE NEGATIVELY IMPACTED BY LAST SPRING`S RELENTLESS RAIN. SNOWFALL TOTALED 6.7 INCHES, WHICH IS 1.8 INCHES BELOW NORMAL. THIS RANKS AS THE 48TH LEAST ON RECORD. HOWEVER, THIS WAS NEARLY 4 TIMES AS MUCH SNOW COMPARED TO SPRING 2019; 1.5 INCHES. A MONTH-BY-MONTH SUMMARY IS BELOW. BROWN MARCH AN UNREMARKABLE MONTH 13 OF THE FIRST 15 DAYS OF MARCH OBSERVED A DAILY AVERAGE TEMPERATURE ABOVE NORMAL. HIGHS IN THE 50S WERE COMMON WITH A COUPLE OF DAYS IN THE LOW-60S. THE AVERAGE TEMPERATURE FOR MARCH 9TH WAS 55 DEGREES; 20 DEGREES ABOVE NORMAL. NOTABLY COLDER AIR ARRIVED LATER ON WITH HIGHS IN THE 40S AND LOWS IN THE 20S. SNOW ARRIVED ALONG WITH THE COLD AIR. 2.6 INCHES OF SNOW WAS REPORTED THROUGH THE 22ND AND 23RD. ONE MORE BOUT OF WARMTH WAS REALIZED BEGINNING ON THE 25TH, BEFORE A STRONG STORM SYSTEM BROUGHT COOLER AIR BACK TO THE AREA ON THE 29TH WITH A PEAK WIND GUST OF 53 MPH OBSERVED. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 40.4 DEGREES, WHICH IS 3.5 DEGREES ABOVE NORMAL. THIS RANKS AS THE 28TH WARMEST MARCH. PRECIPITATION TOTALED 2.23 INCHES, WHICH IS 0.19 INCHES BELOW NORMAL. THIS RANKS AS THE 47TH DRIEST MARCH. THE GREATEST SINGLE-DAY TOTAL WAS ONLY 0.47 INCHES ON THE 28TH. SNOWFALL TOTALED 3.0 INCHES, WHICH IS 4.1 INCHES BELOW NORMAL. MOST OF THIS SNOW FELL ON THE 22ND AND 23RD, WHEN 1.6 AND 1.0 INCHES OF SNOW (RESPECTIVELY) WAS OBSERVED. THIS RANKS AS THE THE 32ND LEAST SNOWIEST MARCH. BROWN APRIL ...A COOL PATTERN OUTWEIGHS HINTS OF SPRINGTIME WARMTH... THOSE DREAMING OF MILD SPRING DAYS OUTDOORS WERE LARGELY DISAPPOINTED BY APRIL 2020, WHICH SAW AN AVERAGE TEMPERATURE OF 45.7 DEGREES. THIS IS 3.3 DEGREES BELOW NORMAL AND TIES AS THE 25TH COLDEST ON RECORD. FOLLOWING THE WARMEST DAY OF THE MONTH, 78 DEGREES ON THE 7TH, COLDER-THAN-NORMAL DAYS OUTNUMBERED WARMER-THAN- NORMAL DAYS. FROM THE 9TH THROUGH THE 30TH, 19 OF 22 DAYS SAW AN AVERAGE DAILY TEMPERATURE BELOW NORMAL. THIS 22-DAY PERIOD RANKS AS THE 9TH COLDEST ON RECORD WITH AN AVERAGE TEMPERATURE OF 44.0 DEGREES. (APRIL 8TH SAW AN AVERAGE TEMPERATE OF 60 DEGREES, 14 DEGREES ABOVE NORMAL). 20 OF APRIL`S 30 DAYS OBSERVED A DAILY TEMPERATURE BELOW NORMAL. ONE TEMPERATURE RECORD WAS TIED THIS MONTH: A RECORD LOW OF 22 DEGREES ON APRIL 16TH TIES THE RECORD FROM 1935. THE TOTAL PRECIPITATION OF 4.18 INCHES IS 0.95 INCHES ABOVE NORMAL. THIS RANKS AS THE 39TH WETTEST ON RECORD. A NEW DAILY PRECIPITATION (RAINFALL IN THIS CASE) WAS SET ON THE 7TH, WHEN 1.20 INCHES WAS OBSERVED. THIS BROKE THE PREVIOUS RECORD OF 0.84 IN 1951. THE TOTAL SNOWFALL FOR THE MONTH WAS 3.7 INCHES, WHICH IS 2.3 INCHES ABOVE NORMAL. THIS TIES AS THE 20TH SNOWIEST APRIL ON RECORD. A NEW DAILY RECORD FOR SNOWFALL WAS SET ON APRIL 17TH. 3.0 INCHES BROKE THE PREVIOUS RECORD OF 1.8 SET IN 1961. BROWN MAY ...A COLD START GIVES WAY TO SUMMER-LIKE WARMTH... LOWS IN THE 20S, A FEW SNOWFLAKES, AND HIGHS IN THE 40S ARE SOME OF THE DISTANT MEMORIES OF HOW MAY 2020 BEGAN. FROM THE 1ST THROUGH 15TH, THE AVERAGE TEMPERATURE WAS 50.5 DEGREES WHICH RANKS AS THE 12TH COLDEST ON RECORD. A FEW RECORDS WERE BROKEN DURING THIS TIME. ON MAY 8TH, A RECORD LOW OF 27 BROKE THE PREVIOUS RECORD OF 28 SET IN 2017 (AND 1947). A REPEAT PERFORMANCE OCCURRED THE FOLLOWING DAY. ON MAY 9TH, A RECORD LOW OF 25 WAS OBSERVED WHICH BROKE THE PREVIOUS RECORD OF 27 IN 1947. THIS RECORD LOW OF 25 WAS ONE DEGREE SHY OF THE ALL-TIME COLDEST MAY TEMPERATURE; 24 ON MAY 6TH, 1968. WHILE ON THE SUBJECT OF COLD, THERE WERE TWO DAYS WHERE AT LEAST A FEW SNOWFLAKES OR EVEN GRAUPEL WERE OBSERVED; MAY 10TH AND 11TH. THE WEATHER PATTERN TURNED NOTABLY WARMER IN TIME FOR MEMORIAL DAY WEEKEND AS TEMPERATURES SOARED INTO THE 80S, AND EVEN REACHED 90 DEGREES ON THE 26TH. USING JANUARY 1 AS A STARTING POINT, THIS TIES AS THE 14TH EARLIEST 90-DEGREE DAY. THIS IS IN STARK CONTRAST TO 2019 WHEN THE FIRST 90-DEGREE DAY WAS ON JULY 2ND. THE AVERAGE TEMPERATURE OF THE MONTH WAS 58.6 DEGREES, WHICH IS ONLY 0.7 DEGREES BELOW NORMAL. THIS RANKS AS THE 58TH "COLDEST" ON RECORD. PRECIPITATION FOR THE MONTH TOTALED 4.58 INCHES, WHICH IS 0.75 INCHES ABOVE NORMAL. THIS RANKS AS THE 41ST WETTEST ON RECORD. BROWN $$