Waterloo, IA Snowfall B+

First snow Nov 12 · Last snow Apr 5 · 39.2 in/yr · Station: WATERLOO MUNICIPAL AP

Avg First Snow

Nov 12

Median over 30 seasons 16d late

Avg Last Snow

Apr 5

Median over 30 seasons

Snow Season

145 days

SepJun

Avg Annual Snowfall

39.2 in

Rank #100 of 217 tracked

Latest season (2025–26): first measurable snowfall arrived 16 days later than the 30-year normal.

Average Monthly Snowfall (inches)

Sep

0.3

Oct

3.1

Nov

10.1

Dec

10.0

Jan

9.3

Feb

4.6

Mar

1.7

Apr

0.1

May

Jun

How Waterloo Compares

Waterloo snowfall vs Iowa and U.S. medians
Measure	Waterloo	Iowa median	U.S. median
Avg annual snowfall	39.2 in	36.4 in	39.1 in
Avg first snowfall	Nov 12	Nov 12	Nov 16
Avg last snowfall	Apr 5	Apr 6	Apr 3
Snow season length	145 days	147 days	139 days

Medians are taken across tracked cities with regular snowfall (5 in Iowa, 201 nationally).

Nearby Tracked Cities

Ski Resorts in Iowa

No tracked resorts — browse all→

Data source: NOAA GHCN-Daily records for WATERLOO MUNICIPAL AP (USW00094910), 9 km from the city center, accessed via the ACIS web service. Normals window: 1990–91 through 2019–20 snow seasons. Measurable snow = ≥ 0.1 in.