Climatological Report (Monthly)
Issued by NWS Omaha/Valley, NE

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CXUS53 KOAX 212349 CCA
CLMOFK

CLIMATE REPORT...CORRECTION
NATIONAL WEATHER SERVICE OMAHA NEBRASKA
1202 PM CDT FRI MAY 1 2015

...CORRECTED NUMBER OF DAYS WITH THUNDERSTORMS FROM 0 TO 2...

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

...THE NORFOLK CLIMATE SUMMARY FOR THE MONTH OF APRIL 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1888 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            85   04/01
LOWEST             26   04/22
AVG. MAXIMUM     65.0              61.9     3.1
AVG. MINIMUM     40.1              37.3     2.8
MEAN             52.6              49.6     3.0
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      4
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.47   1984
 MINIMUM         0.11   1928
TOTALS           1.94              2.65   -0.71
DAILY AVG.       0.06
DAYS >= .01         9
DAYS >= .10         4
DAYS >= .50         2
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.78   04/09 TO 04/09

SNOWFALL (INCHES)
RECORDS
 TOTAL           13.2   1984
TOTALS            0.2               2.6
SINCE 7/1        20.7
SNOWDEPTH AVG.      0
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.2   04/09 TO 04/09

DEGREE_DAYS
HEATING TOTAL     371               474    -103
 SINCE 7/1       6100              6423    -323
COOLING TOTAL       5                12      -7
 SINCE 1/1          5                12      -7
.................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    38/320    DATE  04/20
HIGHEST GUST SPEED/DIRECTION    48/320    DATE  04/20

SKY COVER
AVERAGE SKY COVER             MM


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       4
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

-  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 WARMER AND DRIER THAN NORMAL IN NORFOLK...

APRIL WAS MARKED BY PERIODIC SHOWERS AND THUNDERSTORMS...AND AS IS
TYPICAL OF SPRING...TEMPERATURE SWINGS BETWEEN MILD AND CHILLY
READINGS.  OVERALL...APRIL WAS THE 19TH WARMEST IN NORFOLK...WITH
MIDDLE-OF-THE-ROAD PRECPITATION RANKING.

THE WARMEST DAY OF THE MONTH CAME RIGHT OFF THE BAT...ON THE
1ST...WITH A HIGH TEMPERATURE OF 85 DEGREES AND A THIRD OF AN INCH
OF RAIN. 5 OF THE FIRST 7 DAYS OF THE MONTH WERE WARMER THAN
AVERAGE...BEFORE A COLD FRONT BROUGHT COOLER TEMPERATURES ON THE 8TH
AND 9TH...WITH HIGH TEMPERATURES STUCK IN THE 40S ALONG WITH
ADDITIONAL SHOWERS AND THUNDERSTORMS.

TEMPERATURES REBOUNDED TO ABOVE NORMAL AGAIN FROM THE 10TH THROUGH
THE 18TH....WITH A COUPLE OF LIGHTER RAINS INTERSPERSED WITH
TEMPERATURES IN THE 60S AND 70S. AGAIN...A COLD FRONT BROUGHT
HEAVIER RAIN...WITH 0.53 INCHES ON THE 18TH.  THE AIR BEHIND THE
FRONT WAS QUITE A BIT COOLER...BRINGING THE COLDEST LOW TEMPERATURES
OF THE MONTH AS TEMPERATURES FELL BELOW FREEZING ON THE 22ND AND
23RD.  SHOULD THE FREEZE ON THE 23RD BE THE LAST OF THE SEASON...IT
WILL BE 9 DAYS EARLIER THAN THE PERIOD-OF-RECORD AVERAGE.  THE LAST
HARD FREEZE OF 28 DEGREES OR COLDER OCCURRED ON THE 22ND...WHICH IS
2 DAYS LATER THAN THE PERIOD-OF-RECORD AVERAGE OF APRIL 20...WITH
THE COLDEST TEMPERATURE OF THE MONTH AT 26 DEGREES.

WARMER TEMPERATURES RETURNED FOR THE END OF THE MONTH...THOUGH THE
AVERAGE DAILY TEMPERATURES WERE NEAR NORMAL AS HIGHS IN THE UPPER
60S AND 70S WERE BALANCED BY LOWS IN THE 30S AND LOWER 40S.


DAILY RECORDS SET IN APRIL 2015:
DATE         RECORD           READING  PREVIOUS RECORD
NO RECORDS SET IN APRIL

$$

MAYES/JEK/TL


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