All-time weather records — Grand Mound, IA
Climate change signal in Grand Mound
of Grand Mound's all-time daily heat records were set in the last decade (0 of 123 records since 2015).
of all-time daily cold records were set in the last decade (0 of 123 records since 2015).
If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:
| Decade | Heat records set | # | Cold records set | # |
|---|---|---|---|---|
| 1950s | · | · | ||
| 1960s | · | · | ||
| 1970s | 48 | 47 | ||
| 1980s | 75 | 76 | ||
| 1990s | · | · | ||
| 2000s | · | · | ||
| 2010s | · | · | ||
| 2020s | · | · |
Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1979, the latest in 1981. Period of observation: 1954-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | — | — | 1.82 in — Jan 29, 2006 |
| February | — | — | 2.18 in — Feb 9, 2001 |
| March | — | — | 3.30 in — Mar 5, 1976 |
| April | — | — | 5.03 in — Apr 18, 2013 |
| May | 88.0°F — May 29, 1980 | 32.0°F — May 9, 1980 | 2.73 in — May 26, 2010 |
| June | 91.9°F — Jun 27, 1980 | 41.0°F — Jun 11, 1979 | 4.00 in — Jun 17, 1990 |
| July | — | — | 5.27 in — Jul 23, 2011 |
| August | 93.0°F — Aug 8, 1979 | 46.9°F — Aug 12, 1979 | 4.43 in — Aug 15, 1981 |
| September | — | — | 4.54 in — Sep 8, 2016 |
| October | 86.0°F — Oct 1, 1981 | 21.0°F — Oct 24, 1981 | 3.38 in — Oct 19, 1984 |
| November | — | — | 2.44 in — Nov 5, 2022 |
| December | — | — | 1.90 in — Dec 23, 1979 |
Click a month to see every daily record for that month in Grand Mound.