Mililani, HI (ZIP 96789) shows 4 recorded natural disaster events — a comparatively quiet history. These include 2 floods, 1 tornado, and 1 wildfire. Total documented property damage amounts to $301K.
With 2 recorded incidents (50% of all events), floods are the leading natural hazard for this ZIP code. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for flood-related events here is 4/5 (severe). Flood-related events have caused a combined $51K in documented property damage. The most recent recorded flood occurred on Mar 17, 2025.
Mililani has experienced 1 tornado on record. Tornado-related events have caused a combined $250K in documented property damage. The most recent recorded tornado occurred on Mar 18, 1982.
Mililani has experienced 1 wildfire on record. The most recent recorded wildfire occurred on Feb 24, 2015.
The most significant disaster event on record for Mililani was EF2 Tornado on Mar 18, 1982, which caused $250K in property damage.
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 96789 has experienced 4 natural disaster events. The hazard types affecting this area include floods (2 events), tornado (1 event), and wildfire (1 event). The primary hazard is floods, which account for 50% of all recorded events.
Floods are the most frequently recorded hazard in Mililani, HI, with 2 events documented. These events have caused a combined $51K in property damage.
Yes, Mililani (ZIP 96789) has 2 recorded flood events. These floods have caused $51K in total property damage. The most recent flood on record occurred on Mar 17, 2025.
Mililani has 1 recorded tornado event in the historical record. The strongest tornado recorded reached severity level 3/5 on the normalized scale. Total property damage from tornadoes in this area is $250K. The most recent tornado was recorded on Mar 18, 1982.
The most damaging natural disaster on record for ZIP code 96789 was EF2 Tornado, which occurred on Mar 18, 1982. This event caused $250K in documented property damage. It was rated at severity level 3/5.
Natural disasters have caused a documented total of $301K in property damage in the Mililani, HI area (ZIP 96789). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →