What the record says
Della was a hurricane in the Eastern and central Pacific basin that lasted about 17 days, from 1 September 1957 to 18 September 1957. Its peak was Category 4 (120 kt) on 13 September 1957, with a 1-minute sustained wind of 120 kt (138 mph, 222 km/h). Its lowest recorded pressure was 960 hPa.
- Category 4peak intensity
- 120 ktpeak wind (138 mph)
- 960 hPalowest pressure
- 17 dayslifetime
Source of the peak wind: US Joint Typhoon Warning Center (western Pacific). The regional forecast centre (NOAA National Hurricane Center (HURDAT2, eastern Pacific)) gave a peak of 75 kt on its own averaging convention (10-minute winds), so the two figures differ.
It has its own page because it reached category 4 or stronger.
This page gives the official record's figures. It does not describe the human cost of the storm, which is far larger than any wind speed or pressure here.
Where it came ashore
The record shows no landfall: the storm stayed at sea.
US counties it came within 50 km of
How to read this track
The line joins the storm's six-hourly positions with straight lines, coloured by its intensity at each point, so it shows how the storm strengthened and weakened. The real path curved between the positions. A dashed grey stretch means the storm had become post-tropical. Records before the satellite era (about the 1960s) are estimates.
Source: NOAA NCEI IBTrACS, public domain. See data sources and caveats.
The 1957 Eastern and central Pacific season · All notable storms