National Weather Service United States Department of Commerce
Climate Data
Monthly Numbers
Interested in temperature and precipitation numbers in Harrison? Check them out on a monthly basis below.
 
Climate Summary (Aug 2020)
 
...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            112   08/03/2011
                       08/09/1934
 LOW              41   08/31/1915
HIGHEST           93   08/15         88       5       96  08/19
                       08/24
                       08/25
LOWEST            55   08/05         67     -12       59  08/28
                       08/20
AVG. MAXIMUM    86.6               88.9    -2.3     86.8
AVG. MINIMUM    64.5               66.4    -1.9     68.3
MEAN            75.5               77.6    -2.1     77.6
DAYS MAX >= 90    11               14.2    -3.2       13
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.56   1915
 MINIMUM           T   2007
TOTALS          4.37               3.58    0.79     8.04
DAILY AVG.      0.14               0.12    0.02     0.26
DAYS >= .01       11                8.3     2.7       15
DAYS >= .10        8                                   9
DAYS >= .50        2                                   5
DAYS >= 1.00       2                1.0     1.0        4
GREATEST
 24 HR. TOTAL   1.82   08/11 TO 08/11

SNOWFALL (INCHES)
TOTALS           0.0                0.0     0.0      0.0
 LIQUID EQUIV   0.00               0.00    0.00     0.00
SINCE 7/1        0.0                0.0     0.0       MM
 LIQUID 7/1     0.00               0.00    0.00       MM
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL      0                  1      -1        0
 SINCE 7/1         0                  0       0        0
COOLING TOTAL    334                393     -59      395
 SINCE 1/1      1202               1211      -9     1184

FREEZE DATES
RECORD
 EARLIEST     09/13/1902
 LATEST       05/17/1912
EARLIEST                        10/29
LATEST                          04/18
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.8
HIGHEST WIND SPEED/DIRECTION    29/340    DATE  08/29
HIGHEST GUST SPEED/DIRECTION    41/340    DATE  08/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.23
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          0


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                       9
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      3
HAZE                      5

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

&&

...DATA FOR HARRISON FOR AUGUST 2020...

.SUMMARY...
AT HARRISON, AUGUST WAS THE FIRST MONTH SINCE MAY WITH TEMPERATURES
BELOW AVERAGE. IT WAS THE COOLEST AUGUST IN TWO YEARS. THE HOTTEST
READING DURING THE MONTH WAS 93, AND THE COOLEST TEMPERATURE WAS 55.
THIS WAS THE 8TH AUGUST IN A ROW WITH NO 100-DEGREE READINGS.

OUT OF EIGHT MONTHS OF THE YEAR SO FAR, THIS WAS THE 7TH WITH ABOVE
AVERAGE RAINFALL. MOST OF THE RAIN FELL DURING THE LAST WEEK OF THE
MONTH. THERE WERE 11 DAYS WITH MEASURABLE RAINFALL, WHICH WAS THE FEWEST
IN AUGUST SINCE 2015.

.MONTHLY TEMPERATURES...
THE AVERAGE HIGH TEMPERATURE WAS THE COOLEST SINCE 2018. THE AVERAGE
LOW AND MONTHLY TEMPERATURES WERE THE COOLEST SINCE 2017.

.DAILY TEMPERATURES...
DAILY TEMPERATURES WERE BELOW AVERAGE ON 18 DAYS, ABOVE AVERAGE ON
10 DAYS, AND RIGHT AT AVERAGE ON THREE DAYS.

THERE WERE 11 DAYS WITH HIGH TEMPERATURES AT OR ABOVE 90 DEGREES,
WHICH WAS THE FEWEST SINCE 2018. THERE WERE SIX DAYS WITH LOW
TEMPERATURES COOLER THAN 60 DEGREES, WHICH WAS THE MOST SINCE
2015.

.DAILY RECORD TEMPERATURES TIED OR BROKEN DURING THE MONTH...
THERE WERE NO DAILY RECORD TEMPERATURES TIED OR BROKEN DURING THE MONTH.

.MONTHLY RAINFALL...
EVEN THOUGH RAINFALL WAS ABOVE AVERAGE, IT WAS THE DRIEST AUGUST SINCE
2018.

.DAILY RAINFALL RECORDS TIED OR BROKEN DURING THE MONTH...
DATE    NEW RECORD        PREVIOUS RECORD
11TH   1.82 IN 2020        1.73 IN 1999

.MISCELLANEOUS PHENOMENA...
28TH - AS THE REMNANTS OF HURRICANE LAURA PASSED THROUGH NORTHERN ARKANSAS,
THE PRESSURE AT HARRISON FELL TO 29.63 INCHES. THIS SET AN ALL-TIME RECORD
LOW PRESSURE FOR THE MONTH OF AUGUST AT HARRISON. THE PREVIOUS RECORD WAS
29.65 INCHES, WHICH OCCURRED ON AUGUST 30, 2005. PRESSURE RECORDS AT
HARRISON BEGAN IN 1944.