City vs state
How does Rock Valley compare with IA?
Rock Valley is most below the IA reference in tornado (15 points lower).
Use this page to compare city-level risk against the statewide reference for relocation and planning. The benchmark is p85-based state reference, not an arithmetic average. Missing coverage is unavailable, not zero risk.
Score comparison
Overall
Rock Valley
47/100
IA
51/100
4 points below state reference.
Flood
Rock Valley
67/100
IA
69/100
2 points below state reference.
Wind
Rock Valley
20/100
IA
10/100
10 points above state reference.
Lightning
Rock Valley
48/100
IA
59/100
11 points below state reference.
Tornado
Rock Valley
35/100
IA
50/100
15 points below state reference.
Hail
Rock Valley
100/100
IA
100/100
At state reference.
Storm surge
Rock Valley
Unavailable
IA
Unavailable
City score and state reference unavailable; no comparison.
Related pages