National Weather ServiceIndianaFrost AdvisoryArchive to October 1, 2026
Frost Advisories in Indiana
The National Weather Service issued 19 frost advisories for Indiana in 2025 and 25 a year on average in 2008-2025; in 2021-2025 it had the 10th most of any state. 2026 through September: 23, 66% above the average of 14 for those months in 2008-2025. Jefferson was covered most often (78 times since 2008).
How many frost advisories does Indiana get?
Every frost advisory that covered part of Indiana. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 23 |
| 2025 | 19 |
| 2024 | 24 |
| 2023 | 37 |
| 2022 | 25 |
| 2021 | 33 |
| 2020 | 37 |
| 2019 | 18 |
| 2018 | 25 |
| 2017 | 15 |
| 2016 | 23 |
| 2015 | 16 |
| 2014 | 20 |
| 2013 | 27 |
| 2012 | 27 |
| 2011 | 25 |
| 2010 | 43 |
| 2009 | 20 |
| 2008 | 19 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Indiana get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Indiana?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Jefferson | 78 | 17 | May 3, 2026 |
| Dearborn | 76 | 17 | May 3, 2026 |
| Ripley | 75 | 17 | May 3, 2026 |
| Switzerland | 72 | 15 | May 3, 2026 |
| Ohio | 71 | 15 | May 3, 2026 |
| Fayette | 69 | 18 | May 3, 2026 |
| Randolph | 69 | 18 | May 3, 2026 |
| Wayne | 69 | 19 | May 3, 2026 |
| Delaware | 68 | 17 | May 3, 2026 |
| Elkhart | 68 | 9 | May 12, 2026 |
| Franklin | 68 | 18 | May 3, 2026 |
| Henry | 68 | 18 | May 3, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a frost advisory?
A frost advisory means frost is expected on clear, calm nights during the growing season, with temperatures a few degrees above freezing. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Indiana.