Heavy to excessive rainfall may produce additional flash flooding Wednesday across parts of the southern Plains where the greatest risk is along the Red River Valley into western Arkansas. Scattered severe thunderstorms are also possible centered on central Texas to eastern Oklahoma and western Arkansas. Large hail, damaging wind, and a few tornadoes will be possible. Read More >
The month of April began dry with drought conditions expanding across the region. Moderate drought conditions had expanded into northeast South Dakota early in the month. With the dry conditions and brown grasslands, the fire danger ranged from very high to extreme several times early in April with several Red Flag Warnings being issued. In the middle of the month, the faucet opened up and heavy rainfall occurred across most of the region with another big rainmaker occurring toward the end of the month. As a result of these systems, the precipitation for April was much above normal for most locations except the far east where precip values came in a quarter of an inch or less above normal. The drought conditions were pretty much eliminated with 2 to 6 inches of rainfall for the month. These amounts ranged from near normal in the far east to 3 to 4 inches above normal across north central South Dakota. Finally, April 2016 was one on the top ten wettest Aprils on record for a few locations. Mobridge ended up with the wettest month on record while Timber Lake was the second wettest on record. Pierre finished out with the sixth wettest April on record. The string of above normal temperature months continued across the region in April with monthly average temperatures ranging from just slightly above normal to nearly 3 degrees above normal.
|
APRIL 2016 |
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|
Temperature Data |
Aberdeen |
Sisseton |
Wheaton |
Watertown |
|
Warmest Temperature / Date |
86 / 14th |
84 / 14th |
86 / 15th |
80 / 14th |
|
Coldest Temperature / Date |
15 / 4th,9th |
13 / 9th |
17 / 9th |
18 / 9th, 12th |
|
Average High / Departure from Normal |
58.5 / +1.5 |
56.5 / +0.2 |
55.3 / +0.1 |
57.7 / +2.1 |
|
Average Low / Departure from Normal |
33.4 / +1.6 |
32.7 / +0.1 |
32.1 / +0.1 |
34.9 / +2.8 |
|
Monthly Average / Departure from Normal |
45.9 / +1.5 |
44.6 / +0.1 |
43.7 / +0.1 |
46.3 / +2.5 |
|
Precipitation Data |
||||
|
Monthly Precipitation / Departure from Normal |
3.66 / +1.81 |
2.46 / +0.18 |
1.91 / +0.33 |
2.26 / +0.24 |
|
Monthly Snowfall / Departure from Normal |
Trace / -3.0 |
0.0 / -3.8 |
Trace / -4.3 |
Trace / -3.2 |
|
Most Precipitation in 24 hours / Date |
1.26 / 17-18th |
1.04 / 24-25th |
0.99 / 25th |
1.05 / 18-19th |
|
Most Snow in 24 hours / Date |
Trace / 28th |
n/a |
Trace / 13th |
Trace / 28th |
|
Temperature Data |
Pierre |
Kennebec |
Mobridge |
Timber Lake |
|
Warmest Temperature / Date |
84 / 14th |
82 / 23rd |
80 / 14th, 23rd |
77 / 14th, 15th |
|
Coldest Temperature / Date |
20 / 11th |
19 / 11th |
22 / 11th |
17 / 11th |
|
Average High / Departure from Normal |
60.4 / +0.7 |
63.4 / +1.2 |
60.8 / +2.8 |
60.9 / +2.1 |
|
Average Low / Departure from Normal |
35.6 / +1.4 |
35.5 / +1.5 |
35.7 / +3.2 |
34.1 / +1.4 |
|
Monthly Average / Departure from Normal |
48.0 / +1.0 |
49.1 / +1.0 |
48.2 / +2.9 |
47.5 / +1.7 |
|
Precipitation Data |
||||
|
Monthly Precipitation / Departure from Normal |
3.92 / +2.11 |
4.24 / +2.08 |
4.62 / +3.05 |
6.05 / +4.35 |
|
Monthly Snowfall / Departure from Normal |
Trace / -4.0 |
Trace / -3.8 |
Trace / -3.1 |
Trace / -5.2 |
|
Most Precipitation in 24 hours / Date |
1.14 / 26-27th |
1.90 / 27th |
1.35 / 17-18th |
1.87 / 18th |
|
Most Snow in 24 hours / Date |
Trace / 1st |
Trace / 1st |
Trace / 27th |
Trace / 28th |
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