951
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
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