National Weather Service United States Department of Commerce

October 2015 was another very warm month across central and northeast South Dakota as well as west central Minnesota.  Average monthly temperatures were from 4 to 6 degrees above normal.   Aberdeen, Mobridge and Timber Lake all set record highs on the 10th and the 11th while Pierre and Sisseton set record highs on the 11th.  Wheaton, Minnesota broke their record high with 95 degrees on the 12th.   Sisseton also tied their all-time record high for the month of October with 95 degrees previously set on October 10th 1955With the very warm temperatures, most locations had one their top twentieth warmest Octobers on record.  Kennebec, Mobridge, and Timber Lake all had one of their top ten warmest Octobers on record with Timber Lake having their eighth warmest October on record.  With these warmer than normal temperatures, a hard freeze held off across the region until the middle of October.

Drought conditions expanded some across the northern part of our region throughout the month before a widespread rainfall event occurred from the 22nd through the 24th.  A strong area of low pressure lifting across the region brought anywhere from a half inch to nearly two inches of rainfall.  Despite this rainfall, monthly averages were still below normal across the region ranging from a third of an inch below to almost one and quarter inches below normal.  Also, several locations had some snow showers towards the end of the month on October 28th.

High winds along with some blowing dust affected the region on Sunday the 11th into Monday the 12th.  A large area of blowing dust moved across the region along a strong cold front reducing visibilities to less than a mile at times during the afternoon and evening hours of the 11th. High winds with gusts from 50 to 70 mph also occurred across the region from Sunday into Monday. 

 OCTOBER 2015

       

Temperature Data

Aberdeen

Sisseton

Wheaton

Watertown

Warmest Temperature / Date

93 / 10th, 11th

95 / 11th

95 / 12th

86 / 11th

Coldest Temperature / Date

21 / 16th

24 / 16th

26 /16th,17th

25 / 16th

Average High / Departure from Normal

64.6 / +7.0

63.0 /  +5.8

61.3 / +4.4

62.8 / +6.4

Average Low / Departure from Normal

37.0 / +4.3

38.4 / +2.9

38.9 / +4.4

39.9 / +5.4

Monthly Average / Departure from Normal

50.8 / +5.6

50.7 / +4.4

50.1 / +4.4

51.4 / +5.9

Precipitation Data

       

Monthly Precipitation / Departure from Normal

1.64 / -0.35

0.87 / -1.21

1.19 / -0.98

1.49 / -0.43

Most Precipitation in 24 hours / Date

1.59 / 22nd-23rd

0.75 / 22nd-23rd

0.98 / 23rd-24th

1.43 / 22nd-23rd

         

Temperature Data

Pierre

Kennebec

Mobridge

Timber Lake

Warmest Temperature / Date

95 / 11th

96 / 11th

94 / 10th

91 / 11th

Coldest Temperature / Date

27 / 29th

24 / 16th

27 / 16th

25 / 29th, 30th

Average High / Departure from Normal

65.4 / +4.4

68.6 / +4.8

65.2 / +5.4

63.5 / +4.0

Average Low / Departure from Normal

40.0 / +3.6

40.5 / +4.5

40.4 / +5.8

39.1 / +4.1

Monthly Average / Departure from Normal

52.7 / +4.0

54.5 / +4.6

52.8 / +5.6

51.3 / +4.0

Precipitation Data

       

Monthly Precipitation / Departure from Normal

1.19 / -0.46

1.06 / -0.48

1.14 /-0.36

1.05 / -0.51

Most Precipitation in 24 hours / Date

0.52 / 3rd-4th

0.47 / 23rd

0.58 / 22nd-23rd

0.55 / 23rd