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 (Oct 2019)
 
...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   10/05/1954
                        10/09/1928
                        10/04/1928
 LOW               16   10/29/1910
HIGHEST            90   10/02        70      20       89  10/04
LOWEST             27   10/31        48     -21       33  10/21
AVG. MAXIMUM     68.2              70.1    -1.9     69.2
AVG. MINIMUM     44.9              47.7    -2.8     50.3
MEAN             56.6              58.9    -2.3     59.8
DAYS MAX >= 90      1               0.0     1.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      3               1.1     1.9        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.80   1941
 MINIMUM         0.26   2010
TOTALS           8.78              3.55    5.23     4.95
DAILY AVG.       0.28              0.11    0.17     0.16
DAYS >= .01        11              10.4     0.6        9
DAYS >= .10         9                                  8
DAYS >= .50         5                                  4
DAYS >= 1.00        3               0.9     2.1        2
GREATEST
 24 HR. TOTAL    3.68   10/06 TO 10/06

SNOWFALL (INCHES)
RECORDS
 TOTAL            8.0   1913
 24 HR TOTAL      8.0   10/27/1913 TO 10/27/1913
 SNOW DEPTH         8   10/27/1913
TOTALS              T               0.1    -0.1      0.0
 LIQUID EQUIV       T              0.00    0.00     0.00
SINCE 7/1           T               0.1    -0.1      0.0
 LIQUID 7/1        MM              0.00      MM     0.00
SNOWDEPTH AVG.      0
DAYS >= TRACE       2               0.0     2.0        0
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   10/30 TO 10/31

DEGREE_DAYS
HEATING TOTAL     292               222      70      256
 SINCE 7/1        292               265      27      265
COOLING TOTAL      38                33       5      101
 SINCE 1/1       1581              1412     169     1859

FREEZE DATES
RECORD
 EARLIEST     09/13/1902
 LATEST       05/17/1912
EARLIEST      10/12             10/29
LATEST                          04/04
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.6
HIGHEST WIND SPEED/DIRECTION    35/270    DATE  10/21
HIGHEST GUST SPEED/DIRECTION    52/290    DATE  10/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     72

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

&&

...Data for Harrison for October 2019...

.Summary...
October at Harrison went the complete opposite of September in terms
of temperatures and rainfall. Whereas September was drier than
average and record warm, October ended up being one of the wettest,
as well as the coolest in ten years.

Temperatures began the month in the 80s and peaked at 90 degrees in
the first few days. However, things turned around beginning on the
6th and never completely recovered. The coldest period came in the
last three days of the month, when daily readings were as much as 15
to 20 degrees below average.

Rainfall was fairly evenly distributed throughout the month, though
was heaviest in the first two weeks. It was the wettest October in
ten years.

For the first time in 18 years, snow fell during the month. Though
it was not measurable, sleet and snow fell on the 30th and 31st.

.Monthly Temperatures...
The average high temperature was the coldest in ten years (since
2009). The average low temperature was the coldest in 26 years
(since 1993). The average monthly temperature was the coldest in ten
years (since 2009).

.Daily Temperatures...
Temperatures were above average on nine days, average on one day, and
below average during the remaining 21 days.

There was one day with a temperature of 90 degrees, which was the
first time since 2015. However, there were only four days with highs
at or above 80, which was the fewest since 2013.

There were three days with lows at or below freezing, which was the
most since 2017. There were three days with highs cooler than 50
degrees, which was the most in October since 1981.

The first freeze was on October 12, and this was the earliest first
freeze in 19 years (since 2000).

.Daily Record Temperatures Tied or Broken During the Month...
There were no daily temperature records tied or broken during the
month. However...

On the 31st, the high temperature of 43 degrees most recently tied
October 30, 1976 for the 7th coldest high on record for the month.
The daily average temperature of 35.0 that day also most recently
tied October 19, 1989 for the 9th coolest on record for the month.

.Monthly Rainfall...
It was the wettest October in ten years (since 2009), and the 6th
wettest on record.

.Daily Rainfall Records Tied or Broken During the Month...
Date   New Record     Previous Record
 6th  3.68 in 2019     1.60 in 1930

Other Daily Rainfall Highlights...

On the 6th, 3.68 inches of rain marked the wettest October day at
Harrison since October 8, 2009, and the 3rd wettest day on record
during the month. Only October 8, 2009 (4.01 inches), and October
11, 1969 (4.47 inches) were wetter.

This also marked the 3rd highest 24-hour rainfall amount in the
month of October. Only October 11, 1969 (4.47 inches), and October 8-
9, 2009 (5.20 inches) were wetter 24-hour periods.

.Monthly Snowfall...
For the first October since 2001, sleet and snow fell. This made it
the snowiest October since 2001, and most recently tied 2001 for the
3rd snowiest on record.

.Daily Snowfall Records Tied or Broken During the Month...
Date    New Record         Previous Record
30th   Trace in 2019        Trace in 1993
31st   Trace in 2019    None----Daily Record Established

.Miscellaneous Phenomena...
21st - A wind gust of 52 MPH from the west was recorded as a strong
thunderstorm passed over the city. This set an all-time record wind
gust for the month of October at Harrison. The previous record was
46 MPH on October 26, 2010. This most recently tied November 30,
1975 for the 14th highest wind gust on record at Harrison. (Wind
records at Harrison have been kept since August 15, 1944).