All-time weather records — Marysville, IA
Climate change signal in Marysville
of Marysville's all-time daily heat records were set in the last decade (13 of 366 records since 2015).
of all-time daily cold records were set in the last decade (9 of 366 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 | # |
|---|---|---|---|---|
| 1890s | 7 | 21 | ||
| 1900s | 25 | 51 | ||
| 1910s | 44 | 73 | ||
| 1920s | 39 | 36 | ||
| 1930s | 91 | 24 | ||
| 1940s | 18 | 18 | ||
| 1950s | 30 | 23 | ||
| 1960s | 17 | 19 | ||
| 1970s | 10 | 19 | ||
| 1980s | 25 | 21 | ||
| 1990s | 15 | 31 | ||
| 2000s | 18 | 15 | ||
| 2010s | 26 | 15 | ||
| 2020s | 1 | · |
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 1894, the latest in 2020. Period of observation: 1894-2024.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 71.1°F — Jan 31, 1989 | -29.0°F — Jan 12, 1912 | 1.76 in — Jan 20, 1904 |
| February | 79.0°F — Feb 24, 1930 | -31.0°F — Feb 3, 1996 | 2.23 in — Feb 21, 1997 |
| March | 90.0°F — Mar 30, 1917 | -15.0°F — Mar 1, 1962 | 3.03 in — Mar 16, 2001 |
| April | 93.0°F — Apr 30, 1900 | 8.1°F — Apr 1, 1899 | 5.16 in — Apr 18, 2013 |
| May | 104.0°F — May 31, 1934 | 21.0°F — May 4, 1907 | 4.00 in — May 1, 1900 |
| June | 105.1°F — Jun 29, 1934 | 37.0°F — Jun 4, 1945 | 4.83 in — Jun 28, 1982 |
| July | 109.9°F — Jul 3, 1911 | 41.0°F — Jul 13, 2008 | 7.25 in — Jul 3, 1982 |
| August | 113.0°F — Aug 8, 1934 | 36.0°F — Aug 30, 1915 | 5.76 in — Aug 7, 1977 |
| September | 104.0°F — Sep 4, 1925 | 21.9°F — Sep 29, 1899 | 4.61 in — Sep 15, 1992 |
| October | 96.1°F — Oct 2, 1953 | 5.0°F — Oct 30, 1925 | 3.60 in — Oct 9, 1970 |
| November | 82.0°F — Nov 1, 1938 | -8.0°F — Nov 30, 1964 | 4.45 in — Nov 2, 1961 |
| December | 71.1°F — Dec 5, 1998 | -26.0°F — Dec 23, 1989 | 2.28 in — Dec 8, 1980 |
Click a month to see every daily record for that month in Marysville.