814 CXUS54 KLZK 010954 CLMHRO CLIMATE REPORT NATIONAL WEATHER SERVICE LITTLE ROCK AR 447 AM CDT WED MAY 1 2013 ................................... ...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1891 TO 2013 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 90 04/01 LOWEST 29 04/25 48 -19 37 04/21 AVG. MAXIMUM 68.4 69.2 -0.8 73.3 AVG. MINIMUM 44.0 46.8 -2.8 51.4 MEAN 56.2 58.0 -1.8 62.4 DAYS MAX >= 90 0 0.0 0.0 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 1 1.6 -0.6 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 14.73 2011 MINIMUM 0.53 1989 TOTALS 4.12 4.32 -0.20 1.64 DAILY AVG. 0.14 0.14 0.00 0.05 DAYS >= .01 10 9.6 0.4 5 DAYS >= .10 6 5 DAYS >= .50 4 1 DAYS >= 1.00 1 1.4 -0.4 0 GREATEST 24 HR. TOTAL 1.77 04/26 TO 04/27 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 T 0.3 -0.3 0.0 LIQUID EQUIV T 0.00 0.00 0.00 SINCE 7/1 4.6 11.5 -6.9 2.1 LIQUID 7/1 0.46 1.00 -0.54 0.21 SNOWDEPTH AVG. 0 DAYS >= TRACE 1 1.0 0.0 0 DAYS >= 1.0 0 0 GREATEST SNOW DEPTH 0 MM 24 HR TOTAL T 04/02 TO 04/02 DEGREE_DAYS HEATING TOTAL 283 241 42 143 SINCE 7/1 3836 3921 -85 3058 COOLING TOTAL 25 31 -6 72 SINCE 1/1 32 37 -5 128 FREEZE DATES RECORD EARLIEST 09/13/1902 LATEST 05/17/1912 EARLIEST 10/29 LATEST 04/04 ...................................................... WIND (MPH) AVERAGE WIND SPEED 8.5 HIGHEST WIND SPEED/DIRECTION 33/170 DATE 04/18 HIGHEST GUST SPEED/DIRECTION 41/170 DATE 04/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.40 NUMBER OF DAYS FAIR 12 NUMBER OF DAYS PC 12 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 63 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 1 FOG 11 FOG W/VIS <= 1/4 MILE 1 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...DATA FOR HARRISON FOR APRIL 2013... .SUMMARY... THERE WERE PERIODIC WARM SPELLS DURING THE MONTH. HOWEVER...THE BIG STORY THIS MONTH WAS THE COLDER THAN AVERAGE TEMPERATURES. SEVERAL TIMES DURING THE MONTH...TEMPERATURES FELL INTO THE 30S. THERE WAS ONE DAY WITH A LOW TEMPERATURE IN THE UPPER 20S...WHICH WAS THE FIRST TIME SINCE 2009. THE LOW OF 29 ON THE 25TH WAS THE LATEST FREEZE SINCE 1963. THE LOW WAS THE COLDEST LOW TEMPERATURE THIS LATE IN THE SEASON IN 103 YEARS. THE LAST TIME THE LOW TEMPERATURE WAS THIS COLD THIS LATE IN THE YEAR WAS ON MAY 2ND 1911...WITH A LOW OF 26 DEGREES. SINCE 1960...THERE HAVE ONLY BEEN THREE OTHER YEARS WITH A FREEZE THIS LATE...1960 /MAY 1ST/...1961 /MAY 2ND/...AND 1963 /MAY 1ST/. .MONTHLY TEMPERATURES... THE AVERAGE HIGH TEMPERATURE WAS THE COLDEST SINCE 2009. THE AVERAGE MONTHLY TEMPERATURE WAS THE COLDEST SINCE 2008. THE AVERAGE LOW TEMPERATURE WAS THE COLDEST SINCE 2008. .DAILY AVERAGE TEMPERATURES... ABOVE NORMAL ON 10 DAYS...AT NORMAL ON TWO DAYS...AND BELOW NORMAL ON 18 DAYS. .NUMBER OF DAYS WITH... HIGH TEMPERATURES AT OR ABOVE 70 DEGREES...15...WHICH WAS THE FEWEST SINCE 2009. HIGH TEMPERATURES AT OR BELOW 50 DEGREES...1...WHICH WAS THE MOST SINCE 2009. LOW TEMPERATURES AT OR BELOW FREEZING...1...WHICH WAS THE MOST SINCE 2009...AND THE FIRST APRIL FREEZE SINCE THEN. .DAILY TEMPERATURE RECORDS TIED OR BROKEN DURING THE MONTH... NONE. .RAINFALL... IT WAS THE WETTEST APRIL SINCE 2011. .DAILY RAINFALL RECORDS TIED OR BROKEN DURING THE MONTH... NONE. .SNOWFALL... FOR THE FIRST TIME SINCE 2008...HARRISON RECORDED A TRACE OF SNOWFALL IN THE MONTH OF APRIL. .DAILY SNOWFALL RECORDS TIED OR BROKEN DURING THE MONTH... DATE NEW RECORD PREVIOUS RECORD 2ND TRACE IN 2013 TRACE IN 1983...1975...1915 $$ 57