Very Hot and Dry July

July 2012 was very hot and dry across central and northeast South Dakota along with west central Minnesota with drought conditions expanding across the region. Average temperatures were from 4 to 6 degrees above normal which is extreme for a summer month.  Many locations had among their top ten warmest Julys on record.   Watertown recorded its third warmest July on record while Pierre, Timber Lake, and Kennebec all had their fourth warmest Julys on record. Mobridge tied for the seventh warmest July on record. The most interesting number for July was the average high temperature of almost 98 degrees at Kennebec. This was Kennebec’s seventh warmest average high temperature on record.  Pierre’s average high of nearly 97 degrees tied for the third warmest on record. It was also dry across the region with rainfall amounts ranging from a third of an inch to over 2 and a third inches below normal. Only Mobridge and Wheaton finished slightly above normal for the month.

 JULY 2012
Temperature Data
Aberdeen
Sisseton
Wheaton
Watertown
Warmest Temperature / Date
98 /15th
99 / 2nd
97 / 3rd,5th
97 / 16th
Coldest Temperature / Date
53 / 8th
58 / 8th, 10th
59 / 27th
57 / 10th
Average High / Departure from Normal
88.9 / +5.4
86.8 / +3.9
86.3 / +3.8
88.7 / +6.1
Average Low / Departure from Normal
64.6 / +5.6
64.5 / +5.0
65.2 / +4.5
65.8 / +6.2
Monthly Average / Departure from Normal
76.7 / +5.4
75.6 / +4.4
75.8 / +4.2
77.2 / +6.1
Precipitation Data
Monthly Precipitation / Departure from Normal
2.70 / -0.32
2.31 / -1.27
3.33 / +0.13
0.55 / -2.36
Most Precipitation in 24 hours / Date
1.50 / 17-18th
1.50 / 24-25th
1.61 / 25th
0.22 / 18th
Temperature Data
Pierre
Kennebec
Mobridge
Timber Lake
Warmest Temperature / Date
109 / 15th
106 / 16th,17th
103 / 15th
101 / 15th
Coldest Temperature / Date
55 /27th
52 / 27th
51 / 5th
51 / 27th
Average High / Departure from Normal
96.7 / +7.9
97.6 / +7.9
92.8 / +7.0
92.9 / +6.9
Average Low / Departure from Normal
65.9 / +4.0
66.3 / +4.3
63.9 / +4.4
64.0 / +4.3
Monthly Average / Departure from Normal
81.3 / +5.9
82.0 / +6.1
78.4 / +5.8
78.5 / +5.7
Precipitation Data
Monthly Precipitation / Departure from Normal
0.68 / -1.93
1.45 / -1.04
2.93 / +0.23
2.01 / -0.61
Most Precipitation in 24 hours / Date
0.51 / 23rd-24th
1.08 / 18th
1.05 / 16-17th
0.94 / 6th



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