Arizona, 2020
The year's recorded storm events, federal disaster declarations and flood insurance claims.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2020 was 816 against 824 in 2019.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 12 Aug 2020 | Forecast zone | Excessive Heat | — | — | 43 | — |
| 10 Jul 2020 | Forecast zone | Excessive Heat | — | — | 32 | — |
| 1 Aug 2020 | Forecast zone | Excessive Heat | — | — | 26 | — |
| 24 Aug 2020 | Forecast zone | Excessive Heat | — | — | 16 | — |
| 29 Jul 2020 | Forecast zone | Excessive Heat | — | — | 15 | — |
| 16 Jul 2020 | Forecast zone | Heat | — | — | 14 | — |
| 19 Jul 2020 | Forecast zone | Excessive Heat | — | — | 13 | — |
| 4 Sep 2020 | Forecast zone | Excessive Heat | — | — | 12 | — |
| 14 Jul 2020 | Forecast zone | Excessive Heat | — | — | 12 | — |
| 15 Jul 2020 | Forecast zone | Heat | — | — | 8 | — |
| 28 Jul 2020 | Forecast zone | Excessive Heat | — | — | 8 | — |
| 6 Aug 2020 | Forecast zone | Heat | — | — | 8 | — |
| 20 Jul 2020 | Forecast zone | Heat | — | — | 7 | — |
| 5 Aug 2020 | Forecast zone | Excessive Heat | — | — | 6 | — |
| 21 Jul 2020 | Forecast zone | Heat | — | — | 6 | — |
| 2 Jun 2020 | Forecast zone | Excessive Heat | — | — | 6 | — |
| 7 Jul 2020 | Forecast zone | Heat | — | — | 5 | — |
| 27 May 2020 | Forecast zone | Excessive Heat | — | — | 5 | — |
| 6 Jul 2020 | Forecast zone | Heat | — | — | 4 | — |
| 9 Aug 2020 | Forecast zone | Excessive Heat | — | — | 4 | — |
| 18 Jul 2020 | Forecast zone | Heat | — | — | 4 | — |
| 23 Aug 2020 | Forecast zone | Excessive Heat | — | — | 4 | — |
| 5 Jul 2020 | Forecast zone | Heat | — | — | 3 | — |
| 8 Jul 2020 | Forecast zone | Heat | — | — | 3 | — |
| 9 Jul 2020 | Forecast zone | Heat | — | — | 3 | — |
| 26 Jun 2020 | Forecast zone | Heat | — | — | 3 | — |
| 22 Aug 2020 | Maricopa | Flash Flood | — | $10,000 | 2 | 3 |
| 3 Jul 2020 | Forecast zone | Heat | — | — | 2 | — |
| 17 Jul 2020 | Forecast zone | Heat | — | — | 2 | — |
| 29 Jul 2020 | Forecast zone | Excessive Heat | — | — | 2 | — |
| 27 Jul 2020 | Forecast zone | Heat | — | — | 2 | — |
| 25 Oct 2020 | Forecast zone | Extreme Cold/Wind Chill | — | — | 2 | — |
| 8 Aug 2020 | Forecast zone | Heat | — | — | 2 | — |
| 24 Aug 2020 | Forecast zone | Excessive Heat | — | — | 2 | — |
| 4 Sep 2020 | Forecast zone | Heat | — | — | 2 | — |
| 4 Sep 2020 | Forecast zone | Excessive Heat | — | — | 2 | — |
| 3 Sep 2020 | Forecast zone | Heat | — | — | 2 | — |
| 26 Apr 2020 | Forecast zone | Excessive Heat | — | — | 2 | — |
| 1 Jun 2020 | Forecast zone | Heat | — | — | 2 | — |
| 6 Jun 2020 | Forecast zone | Excessive Heat | — | — | 2 | — |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2020
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 26 Aug 2020 | FM-5340 | Fire management assistance | Fire | Griffin Fire | 1 |
| 27 Jun 2020 | FM-5315 | Fire management assistance | Fire | Avondale Fire | 1 |
| 23 Jun 2020 | FM-5314 | Fire management assistance | Fire | Aquila Fire | 1 |
| 20 Jun 2020 | FM-5313 | Fire management assistance | Fire | Bush Fire | 2 |
| 11 Jun 2020 | FM-5312 | Fire management assistance | Fire | Big Horn Fire | 1 |
| 30 May 2020 | FM-5311 | Fire management assistance | Fire | Ocotillo Fire | 1 |
| 18 May 2020 | FM-5310 | Fire management assistance | Fire | East Desert Fire | 1 |
| 4 Apr 2020 | DR-4524 | Major disaster | Biological | Covid-19 Pandemic | 15 |
| 13 Mar 2020 | EM-3442 | Emergency | Biological | Covid-19 | 15 |
Flood insurance claims with a 2020 date of loss
19 NFIP claims, 7 of them paid, for $138,222.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.