NOAA Atlas 14 recurrence intervals and storm durations
Link to this table.

Recurrence intervals Storm durations
1-year 5-minute
2-year 10-minute
5-year 15-minute
10-year 30-minute
25-year 60-minute
50-year 2-hr
100-year 3-hr
200-year 6-hr
500-year 12-hr
1000-year 24-hr
2-day
3-day
4-day
7-day
10-day
20-day
30-day
45-day
60-day