Very Wet and Cool October

October 2013 was a cool and very wet month across all of central and northeast South Dakota as well as west central Minnesota.  Many large storms moved across the region bringing record setting precipitation for several locations across our region.  The devastating early October blizzard that hit western Dakota and the Black Hills brought from 1 to 5 feet of snow along with very strong winds gusting from 50 to 70 mph.  The blizzard resulted in tens of thousands of cattle deaths, countless trees damaged, along with thousands of people without power.  Our region did receive some snowfall along with blizzard conditions west of the Missouri River with this storm.  Some locations west of the Missouri River received 6 to 10 inches of snowfall with Interstate-90 closed.  We also had a tornado occur in far eastern Traverse County on October 11th downing some trees, and damaging a residence along with destroying a large shed.

Rainfall amounts for October ranged from 4 to 6 inches across the region or from 2 to over 4 inches above normal.  All of the locations had one of their top ten wettest Octobers on record.  Mobridge and Timber Lake both had their record wettest October on record with nearly 6 inches of precipitation. Sisseton, Wheaton, Pierre, and Kennebec all had their third wettest October on record.  Aberdeen was the fifth wettest with Watertown placing in eighth.  Looking back at the wettest Octobers on record, Wheaton had 7.04 inches in 2009; Aberdeen had 7.29 inches in 1998; Sisseton had 7.96 inches in 1998; with 8.10 inches at Watertown in 1971.

Monthly average temperatures were from 1 to 5 degrees below normal across the region.  All locations were in the top ten coldest Octobers on record except for Watertown.  Mobridge was the third coldest with Sisseton the fifth coldest on record.  The month of October began with warm conditions across the region however, with many highs in the 60s and 70s. In fact, Kennebec reached 88 degrees on October 1st 

October 2013

       

Temperature Data

Aberdeen

Sisseton

Wheaton

Watertown

Warmest Temperature / Date

77 / 8th

78 / 10th

79 / 1st

75 / 2nd

Coldest Temperature / Date

20 / 24th,25th

21 / 21st

25 /29th

24 / 24th, 25th

Average High / Departure from Normal

    52.9 / -4.7

53.4 / -3.8

53.5 / -3.4

52.9 / -3.5

Average Low / Departure from Normal

31.8 / -0.9

35.1 / -0.4

36.7 / +2.2

35.9 / +1.4

Monthly Average / Departure from Normal

42.3 / -2.9

44.2 / -2.1

45.1 / -0.6

44.4 / -1.1

Precipitation Data

       

Monthly Precipitation / Departure from Normal

4.72 / +2.73

6.05 / +3.97

5.19 / +3.02

4.21 / +2.29

Monthly Snowfall / Departure from Normal

3.3 / +2.6

1.0 / +0.3

Trace / -0.7

0.3 / -1.4

Most Precipitation in 24 hours / Date

2.22 / 14-15th

3.16 / 14-15th

2.90 / 15-16th

3.00 / 14-15th

Most Snow in 24 hours / Date

2.8 / 29th

1.0 / 29th

Trace / 29th

0.3 / 22nd

         

Temperature Data

Pierre

Kennebec

Mobridge

Timber Lake

Warmest Temperature / Date

75 / 7th

88 / 1st

71 / 1st

71 / 7th

Coldest Temperature / Date

25 / 24th

22 / 24th

22 / 24th,28th

22 / 24th, 28th

Average High / Departure from Normal

54.7 / -6.3

59.7 / -4.1

52.8 / -7.0

51.9 / -7.6

Average Low / Departure from Normal

35.2 / -1.2

35.2 / -0.8

32.9 / -1.7

32.7 / -2.3

Monthly Average / Departure from Normal

45.0 / -3.7

47.4 / -2.5

42.9 / -4.3

42.3 / -5.0

Precipitation Data

       

Monthly Precipitation / Departure from Normal

4.76 / +3.11

4.07 / +2.53

5.69 / +4.19

5.90 / +4.34

Monthly Snowfall / Departure from Normal

0.5 / -0.5

1.0 / +0.2

1.0 / +0.4

6.7 / +5.6

Most Precipitation in 24 hours / Date

1.90 / 3rd-4th

1.72 / 14-15th

2.79 / 4-5th

1.42 / 5th

Most Snow in 24 hours / Date

0.5 / 28th

1.0 / 29th

0.5 / 29th

2.0 / 4th, 5th

 

 



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