Climatological Report (Monthly)
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CXUS54 KLZK 012044
CLMHRO


CLIMATE REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
333 PM CDT TUE MAY 1 2018

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

...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   04/27/1927
 LOW               20   04/13/1957
                        04/14/1950
                        04/04/1904
HIGHEST            84   04/17        69      15       81  04/19
                                                          04/15
                                                          04/14
LOWEST             23   04/07        48     -25       38  04/07
AVG. MAXIMUM     65.0              69.2    -4.2     72.0
AVG. MINIMUM     39.7              46.8    -7.1     50.3
MEAN             52.4              58.0    -5.6     61.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      9               1.6     7.4        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.73   2011
 MINIMUM         0.53   1989
TOTALS           3.37              4.32   -0.95    11.68
DAILY AVG.       0.11              0.14   -0.03     0.39
DAYS >= .01        10               9.6     0.4       14
DAYS >= .10         3                                 11
DAYS >= .50         3                                  4
DAYS >= 1.00        2               1.4     0.6        3
GREATEST
 24 HR. TOTAL    1.33   04/13 TO 04/13

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.0   1971
 24 HR TOTAL      5.8   04/04/1993 TO 04/04/1993
 SNOW DEPTH         2   04/14/1980
TOTALS            0.1               0.3    -0.2      0.0
 LIQUID EQUIV    0.01              0.00    0.01     0.00
SINCE 7/1         2.2              11.5    -9.3      3.4
 LIQUID 7/1      0.22              1.00   -0.78     0.34
SNOWDEPTH AVG.      0
DAYS >= TRACE       5               1.0     4.0        0
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         T   04/07
 24 HR TOTAL      0.1   04/07 TO 04/07

DEGREE_DAYS
HEATING TOTAL     378               241     137      148
 SINCE 7/1       3794              3921    -127     2922
COOLING TOTAL       9                31     -22       40
 SINCE 1/1         14                37     -23       53

FREEZE DATES
RECORD
 EARLIEST     09/13/1902
 LATEST       05/17/1912
EARLIEST                        10/29
LATEST                          04/04
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    29/310    DATE  04/03
HIGHEST GUST SPEED/DIRECTION    38/180    DATE  04/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     61

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...Data for Harrison for April 2018...

.Summary...
April marked a significant change in temperature trends at Harrison.
After a few warmer than average months in the late winter and
early spring, April ended over five degrees below the 30-year
average. Both high and low temperatures (which included several late-
season freezes) were significantly cooler than we would normally see
in April.

It was the driest April in two years.

For the first April in five years, snow fell. The snow was measurable,
which was the first time in 25 years.

.Monthly Temperatures...
The average high temperature was the coldest since 1997, and the 9th
coldest on record. The average low temperature was the coldest since
1907 and the 3rd coldest on record. The average monthly temperature was
the coldest since 1983, and the 3rd coldest on record.

.Daily Temperatures...
Daily temperatures were above average on eight days, average on one
day, and below average on 21 days.

There were nine days with low temperatures at or below freezing during
the month, which was the most for April since 1956, and tied 1956 and
1907 for the 2nd highest amount in the month of April at Harrison.

There were three days with high temperatures at or above 80, which was
the fewest since 2016.

The freeze on April 16th was the latest freeze since May 3, 2013.

.Daily Record Temperatures Tied or Broken During the Month...
Date  Record Type                 New Record        Previous Record
 7th  Low temperature             23 in 2018          23 in 2007

On the 7th, the daily average temperature of 34.5 degrees was the 6th
coldest on record for the month of April.

.Monthly Rainfall...
It was the driest April since 2016.

.Daily Rainfall Records Tied or Broken During the Month...
None.

.Monthly Snowfall...
For the first time since 2013, snow fell in the month of April. It was
also the first measurable snowfall in April in 25 years (since 1993),
and the latest measurable snowfall since May of 2013. It was the
snowiest April since 1993, and the 10th snowiest on record.

.Daily Record Snowfall Tied or Broken During the Month...
Date     New Record        Previous Record
 7th     0.1 in 2018         T in 1916

There was one day with measurable snowfall during the month, which was
the most since 1993.

There were five days with snowfall (measurable or trace) during the month,
which was the most in April since 1993 and the highest amount in April
since records began at Harrison in 1891.

.Miscellaneous Phenomena...
None.

$$

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