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000
CXUS53 KOAX 011801
CLMOMA

CLIMATE REPORT
NATIONAL WEATHER SERVICE OMAHA NEBRASKA
100 PM CDT FRI JUN 1 2012

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

...THE OMAHA EPPLEY, NEBRASKA CLIMATE SUMMARY FOR THE MONTH OF MAY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            95   05/26
LOWEST             44   05/09
AVG. MAXIMUM     80.3              73.8     6.5
AVG. MINIMUM     56.5              50.9     5.6
MEAN             68.4              62.3     6.1
DAYS MAX >= 90      6
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.29   1883
 MINIMUM         0.55   1989/1925
TOTALS           3.56              4.76   -1.20
DAILY AVG.       0.11
DAYS >= .01        11
DAYS >= .10         8
DAYS >= .50         3
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.26   05/01 TO 05/02

SNOWFALL (INCHES)
RECORDS
 TOTAL            2.0   1945
TOTALS            0.0               0.0
SINCE 7/1        20.4
SNOWDEPTH AVG.      0
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.0

DEGREE DAYS
HEATING TOTAL      47               148    -101
 SINCE 7/1       4787              6150   -1363
COOLING TOTAL     160                66      94
 SINCE 1/1        228                82     146
.................................................

WIND (MPH)
AVERAGE WIND SPEED              11.8
HIGHEST WIND SPEED/DIRECTION    45/310    DATE  05/02
HIGHEST GUST SPEED/DIRECTION    54/320    DATE  05/02

SKY COVER
AVERAGE SKY COVER           0.50


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       4
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       4
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
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.

&&

MAY WAS MUCH WARMER AND DRIER THAN NORMAL IN OMAHA.

CONTINUING A TREND THAT HAS PERSISTED THROUGH MUCH OF THE WINTER AND
CERTAINLY THIS SPRING...MAY WAS MUCH WARMER THAN USUAL.  IN
FACT...IT WAS THE 6TH WARMEST MAY ON RECORD IN OMAHA...WITH AN
AVERAGE TEMPERATURE OF 68.4 DEGREES THAT WAS 6.1 DEGREES ABOVE
NORMAL.  THE MONTH WAS ALSO FAIRLY STORMY...WITH 11 DAYS SEEING
RAINFALL AND 10 OF THOSE ASSOCIATED WITH THUNDER.  HAIL WAS NOTED AT
EPPLEY AIRFIELD 4 TIMES IN MAY.  EVEN SO...THE MONTHLY TOTAL
RAINFALL OF 3.56 INCHES FELL SHORT OF THE MONTHLY NORMAL RAINFALL BY
1.20 INCHES.

STORMY WEATHER BEGAN THE MONTH...WITH AT LEAST A TRACE OF RAIN ON
THE 1ST THROUGH THE 6TH...AND WITH THUNDERSTORMS ON 4 OF THOSE DAYS
AND HAIL REPORTED 3 TIMES.  THE STRONGEST WINDS OF THE MONTH
OCCURRED IN STORMS ON THE 2ND...WITH WINDS GUSTING TO 54 MPH.  A
TOTAL OF 1.66 INCHES OF RAIN FELL IN THOSE FIRST 6 DAYS OF THE
MONTH...AND TEMPERATURES WERE WELL ABOVE NORMAL THROUGH THE 6TH.
AFTER A BRIEF COOL-DOWN ON THE 8TH AND 9TH...WITH THE COOLEST
READING OF THE MONTH ON THE 9TH AT 44 DEGREES...WARM AND DRY
CONDITIONS PERSISTED FROM THE 10TH THROUGH THE 18TH.

WEATHER BECAME MORE VOLATILE AGAIN FROM THE 18TH THROUGH THE END OF
THE MONTH.  SEVERAL DAYS OF SHOWERS AND THUNDERSTORMS WERE
INTERMINGLED WITH RECORD OR NEAR-RECORD HEAT...WITH THE COOLEST
TEMPERATURES OF THE MONTH THEN OCCURRING AT THE END OF THE MONTH.
THE HIGH TEMPERATURE OF 93 ON THE 23RD TIED THE DAILY HIGH...WHILE
THE READING OF 94 DEGREES ON THE 27TH SET A DAILY HIGH TEMPERATURE
RECORD.  THE WARMEST READING OF THE MONTH...95 DEGREES...OCCURRED ON
THE 26TH.  THE COOLEST HIGH TEMPERATURE OF THE MONTH...AT 59
DEGREES...OCCURRED ON THE 31ST.

FOR THE SEASON OF MARCH THROUGH MAY...THE AVERAGE TEMPERATURE
BLASTED AWAY THE PREVIOUS RECORD FOR THE WARMEST SPRING.  THE MARCH-
APRIL-MAY AVERAGE TEMPERATURE WAS 60.6 DEGREES...BREAKING THE
PREVIOUS RECORD OF 58.4 DEGREES SET IN 1977.

WITH THE MILD WINTER...THE COMBINED WINTER AND SPRING SEASONS OF
DECEMBER THROUGH MAY ALSO SET THE RECORD FOR WARMEST.  THE
DECEMBER THROUGH MAY AVERAGE TEMPERATURE OF 45.9 DEGREES BROKE THE
RECORD OF 44.0 SET IN 1878.

2012 IS THE WARMEST YEAR TO DATE ON RECORD...WITH THE AVERAGE
TEMPERATURE FOR JANUARY THROUGH MAY OF 49.1 DEGREES OVERWHELMING THE
RECORD OF 46.8 DEGREES SET IN 1921.

FINALLY...THE PAST 12 MONTHS OF JUNE 2011 THROUGH MAY 2012 ARE THE
WARMEST OF THAT PERIOD ON RECORD...AT 55.8 DEGREES.  THE PREVIOUS
RECORD WAS 54.9 DEGREES...SET IN 1934.


DAILY RECORDS SET IN MAY 2012:
DATE       RECORD         READING  PREVIOUS RECORD
MAY 23     WARM MAX TEMP    93     93 (TIES WITH 1939)
MAY 27     WARM MAX TEMP    94     92 (1895)

$$

MAYES/KLEMM/KLISH