By month
6Jan
1Feb
5Mar
4Apr
6May
1Jun
2Jul
5Aug
2Sep
2Oct
4Nov
7Dec
By hazard
45 declarations
| Declared | Number | Title | Hazard | State | Areas | Programs | Federal aid |
|---|---|---|---|---|---|---|---|
| Jan 3, 1991 | DR-888-MS | Severe Storms, Tornadoes & Flooding | Severe Storm | MS | 12 | IA | — |
| Jan 4, 1991 | DR-889-TN | Severe Storms & Flooding | Flood | TN | 22 | IAPA | — |
| Jan 4, 1991 | DR-890-AL | Severe Storms & Flooding | Flood | AL | 12 | IAPA | — |
| Jan 5, 1991 | DR-891-IN | Severe Storms & Flooding | Flood | IN | 73 | IAPA | — |
| Jan 17, 1991 | DR-892-FM | Typhoon Russ | Typhoon | FM | 1 | IAPA | — |
| Jan 29, 1991 | DR-893-KY | Severe Storms & Flooding | Flood | KY | 19 | PA | — |
| Feb 11, 1991 | DR-894-CA | Severe Freeze | Freezing | CA | 33 | IA | — |
| Mar 5, 1991 | DR-895-MS | Severe Storms & Flooding | Flood | MS | 18 | IAPA | — |
| Mar 8, 1991 | DR-896-WA | Severe Storms & High Tides | Flood | WA | 10 | PA | — |
| Mar 15, 1991 | DR-897-GA | Severe Storms & Flooding | Flood | GA | 15 | IAPA | — |
| Mar 21, 1991 | DR-898-NY | Severe Winter Storm | Snowstorm | NY | 13 | PA | — |
| Mar 29, 1991 | DR-899-IN | Severe Ice Storm | Severe Ice Storm | IN | 26 | PA | — |
| Apr 12, 1991 | DR-900-TX | Severe Storms, Tornadoes & Flooding | Severe Storm | TX | 5 | IAPA | — |
| Apr 19, 1991 | DR-901-ME | Severe Storms, Ice Jams & Flooding | Snowstorm | ME | 1 | PA | — |
| Apr 23, 1991 | DR-902-LA | Severe Storms & Flooding | Flood | LA | 15 | IAPA | — |
| Apr 29, 1991 | DR-903-KS | Severe Storms & Tornadoes | Tornado | KS | 6 | IAPA | — |
| May 3, 1991 | DR-904-LA | Severe Storms, Tornadoes & Flooding | Severe Storm | LA | 38 | IAPA | — |
| May 8, 1991 | DR-905-OK | Severe Storms & Tornadoes | Tornado | OK | 6 | IAPA | — |
| May 17, 1991 | DR-906-MS | Severe Storms, Tornadoes & Flooding | Severe Storm | MS | 42 | IAPA | — |
| May 28, 1991 | DR-908-NE | Severe Storms & Flooding | Flood | NE | 7 | PA | — |
| May 30, 1991 | DR-907-AR | Severe Storms & Flooding | Flood | AR | 21 | PA | — |
| May 30, 1991 | DR-909-AK | Heavy Snow, Ice Jams & Flooding | Snowstorm | AK | 3 | PA | — |
| Jun 21, 1991 | DR-910-TN | Severe Storms & Flooding | Flood | TN | 9 | PA | — |
| Jul 3, 1991 | FM-2078-AK | Appel Mountain Fire | Fire | AK | statewide | PA | — |
| Jul 12, 1991 | DR-911-IA | Severe Storms & Flooding | Flood | IA | 16 | IAPA | — |
| Aug 6, 1991 | DR-912-WI | Severe Storms & Hail | Severe Storm | WI | 5 | PA | — |
| Aug 26, 1991 | DR-913-RI | Hurricane Bob | Hurricane | RI | 5 | IAPA | — |
| Aug 26, 1991 | DR-914-MA | Hurricane Bob | Hurricane | MA | 11 | IAPA | — |
| Aug 28, 1991 | DR-915-ME | Hurricane Bob & Flooding | Hurricane | ME | 9 | IAPA | — |
| Aug 30, 1991 | DR-916-CT | Hurricane Bob | Hurricane | CT | 6 | PA | — |
| Sep 9, 1991 | DR-917-NH | Hurricane Bob & Severe Storms | Hurricane | NH | 4 | PA | — |
| Sep 16, 1991 | DR-918-NY | Hurricane Bob | Hurricane | NY | 1 | PA | — |
| Oct 18, 1991 | FM-2079-WA | Eastern Washington Fires | Fire | WA | statewide | PA | — |
| Oct 22, 1991 | DR-919-CA | Oakland Hills Fire | Fire | CA | 1 | IAPA | — |
| Nov 4, 1991 | DR-920-MA | Coastal Storm | Coastal Storm | MA | 7 | IAPA | — |
| Nov 7, 1991 | DR-921-ME | Coastal Storm | Coastal Storm | ME | 5 | IAPA | — |
| Nov 13, 1991 | DR-922-WA | Fires | Fire | WA | 6 | IAPA | — |
| Nov 13, 1991 | DR-923-NH | Coastal Storm | Coastal Storm | NH | 1 | IAPA | — |
| Dec 4, 1991 | DR-924-GU | Typhoon Yuri | Typhoon | GU | 1 | IAPA | — |
| Dec 6, 1991 | DR-925-MH | Typhoon Zelda | Typhoon | MH | 6 | IAPA | — |
| Dec 10, 1991 | DR-926-FM | Typhoon Yuri | Typhoon | FM | 2 | IAPA | — |
| Dec 13, 1991 | DR-927-AS | Hurricane Val | Hurricane | AS | 5 | IAPA | — |
| Dec 26, 1991 | DR-928-IA | Ice Storm | Severe Ice Storm | IA | 44 | PA | — |
| Dec 26, 1991 | DR-929-MN | Ice Storm | Severe Ice Storm | MN | 12 | PA | — |
| Dec 26, 1991 | DR-930-TX | Severe Thunderstorms | Flood | TX | 65 | IAPA | — |