Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >
As an update to the story published earlier this week on dew point records, the following table includes sites from Sioux Falls’ area as well. The day that story was published (8/1), Aberdeen and Sisseton tied their records. Notice that both Huron and Sisseton set records this summer. By comparing recent dew point temperatures to the records, this summer’s uncomfortable conditions can be confirmed!
Site |
Highest Recent Dew Point Temperature |
Recent Date |
Record Dew Point Temperature |
Record Date |
Period of Record |
Aberdeen |
82°F |
8/1/2011, 7/17/2011 |
82°F |
8/1/2011, 7/17/2011, 7/18/2001, 7/29/1999 |
1948-2011 |
Huron |
81°F |
7/18/2011, 7/17/2011 |
81°F |
7/18/2011, 7/17/2011 |
1892-2011 |
Mitchell |
80°F |
7/18/2011, 7/16/2011 |
86°F |
7/15/2002, 8/8/1975 |
1973-2011 |
Mobridge |
80°F |
7/18/2011, 7/17/2011 |
83°F |
6/12/1987 |
1977-2011 |
Pierre |
80°F |
7/16/2011 |
84°F |
7/1/2000 |
1948-2011 |
Sioux Falls |
81°F |
7/17/2011 |
82°F |
7/10/2004 |
1942-2011 |
Sisseton |
83°F |
8/1/2011, 7/17/2011 |
83°F |
8/1/2011, 7/17/2011 |
2001-2011 |
Watertown |
80°F |
7/19/2011, 7/18/2011, 7/17/2011 |
81°F |
7/29/1999, 7/12/1995 |
1948-2011 |