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000
CXUS53 KOAX 011529
CLMOFK

CLIMATE REPORT
NATIONAL WEATHER SERVICE OMAHA NEBRASKA
912 AM CDT WED MAY 1 2013

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

...THE NORFOLK CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1888 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            86   04/28
LOWEST             20   04/02
                        04/01
AVG. MAXIMUM     56.0              61.9    -5.9
AVG. MINIMUM     32.0              37.3    -5.3
MEAN             44.0              49.6    -5.6
DAYS MAX >= 90      0
DAYS MAX <= 32      2
DAYS MIN <= 32     19
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.47   1984
 MINIMUM         0.11   1928
TOTALS           3.84              2.65    1.19
DAILY AVG.       0.13
DAYS >= .01        11
DAYS >= .10         8
DAYS >= .50         2
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    2.11   04/08 TO 04/09

SNOWFALL (INCHES)
RECORDS
 TOTAL           13.2   1984
TOTALS            6.6               2.6
SINCE 7/1        27.3
DAYS >= 1.0         3
GREATEST
 SNOW DEPTH         3   04/11
 24 HR TOTAL      2.3   04/10 TO 04/11

DEGREE DAYS
HEATING TOTAL     628               474     154
 SINCE 7/1       6541              6423     118
COOLING TOTAL       4                12      -8
 SINCE 1/1          4                12      -8
.................................................

WIND (MPH)
AVERAGE WIND SPEED              13.0
HIGHEST WIND SPEED/DIRECTION    37/360    DATE  04/09
HIGHEST GUST SPEED/DIRECTION    46/020    DATE  04/09

SKY COVER
AVERAGE SKY COVER           0.40


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               11     FREEZING RAIN              3
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                6     SLEET                      1
FOG                      10     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
>= INDICATES GREATER THAN OR EQUAL TO
<= INDICATES LESS THAN OR EQUAL TO

&&

...APRIL WAS WETTER AND MUCH COOLER THAN NORMAL IN NORFOLK...

THOUGH THERE WERE A FEW WARM AND DRY SPELLS...APRIL WAS DOMINATED BY
UNUSUALLY COOL AND WET WEATHER IN NORFOLK.  APRIL BEGAN WITH A
COUPLE OF COOL DAYS...WITH THE LOW TEMPERATURE OF 20 DEGREES ON THE
1ST AND 2ND ALSO THE COLDEST READINGS OF THE MONTH.  A SPELL OF WARM
WEATHER FOLLOWED FROM THE 4TH THROUGH THE 8TH...WITH DRY WEATHER
THROUGH THE 6TH.  A WET PERIOD FROM THE 7TH THROUGH THE 18TH BROUGHT
AT LEAST A TRACE OF RAIN ON 9 OF THE 12 DAYS...AND MEASURABLE RAIN
ON 8 OF THOSE DAYS.  THE TOTAL PRECIPITATION OF 1.75 INCHES ON THE
9TH WAS A DAILY RECORD...ACCOMPANIED BY THUNDERSTORMS...AND INCLUDED
SLEET...SNOW...AND FREEZING RAIN.  MEASURABLE SNOW FELL EACH DAY
FROM THE 9TH TO 11TH...WITH 2.8 INCHES TOTAL.   SNOW FELL AGAIN ON
THE 18TH...WITH 1.8 INCHES SETTING A DAILY SNOWFALL RECORD AS THE
MAXIMUM TEMPERATURE ALSO WAS THE COLDEST FOR THE DATE AT 32 DEGREES.
THE COOLEST HIGH TEMPERATURES OF THE MONTH ALSO OCCURRED DURING THIS
PERIOD...AT 31 DEGREES ON THE 10TH.

UNLIKE AREAS JUST SOUTH OF NORFOLK...TEMPERATURES STAYED BELOW
NORMAL THROUGH THE MIDDLE OF THE MONTH...AS ANOTHER COLD FRONT
BROUGHT COOLER TEMPERATURES AND PRECIPITATION.  AN ADDITIONAL 0.55
INCHES OF PRECIPITATION FELL ON THE 21ST TO 22ND...INCLUDING 2.0
INCHES OF SNOW ON THE 22ND THAT SET THE DAILY RECORD.  ONE MORE
RECORD COLD MAXIMUM TEMPERATURE OCCURRED ON THE 23RD...AT 34
DEGREES...BEFORE THE PATTERN STARTED TO RETURN TO NORMAL.  THE
TEMPERATURE FINALLY BROKE 80 DEGREES ON THE 28TH...AND THE WARMEST
TEMPERATURE OF THE MONTH OCCURRED ON THE 28TH...AT 86 DEGREES.
ABOVE NORMAL TEMPERATURES WERE THEN IN PLACE FROM THE 26TH THROUGH
THE 30TH.  THE MONTH ENDED WITH SHOWERS AND THUNDERSTORMS LATE ON
THE 30TH AS ANOTHER STRONG COLD FRONT APPROACHED NORTHEAST
NEBRASKA...ADDING 0.14 INCHES TO THE MONTHLY RAINFALL TOTAL. THE LOW
TEMPERATURE STAYED ABOVE 50 DEGREES FOR THE FIRST TIME THIS YEAR ON
THE 28TH.  FOR THE MONTH...THE MINIMUM TEMPERATURE WAS AT OR BELOW
FREEZING ON 19 DAYS IN APRIL...WHICH TIES FOR 2ND MOST WITH
1893/1907/1909.  THE RECORD IS 21 DAYS IN 1950.

THE AVERAGE TEMPERATURE OF 44.0 DEGREES WAS 5.6 DEGREES BELOW NORMAL
AND THE 11TH COLDEST ON RECORD IN NORFOLK.  THE TOTAL MONTHLY
PRECIPITATION OF 3.84 INCHES WAS 1.19 INCHES ABOVE NORMAL AND THE
24TH WETTEST ON RECORD.  THE TOTAL MONTHLY SNOWFALL WAS 6.6
INCHES...WHICH IS 4.0 INCHES ABOVE NORMAL.

DAILY RECORDS SET IN APRIL 2013:
DATE        RECORD         READING  PREVIOUS RECORD
APRIL 9     RAINFALL         1.75   1.18 (1941)
APRIL 18    COLD MAX TEMP   32      34 (1910)
APRIL 18    SNOWFALL         1.8    0.5 (1975)
APRIL 22    SNOWFALL         2.0    0.2 (1988)
APRIL 23    COLD MAX TEMP   34      40 (1956)

$$

MAYES/KLEMM