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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

$$