Boulder, CO Snowfall A

First snow Oct 10 · Last snow May 1 · 93.2 in/yr · Station: BOULDER

Avg First Snow

Oct 10

Median over 30 seasons 50d late

Avg Last Snow

May 1

Median over 30 seasons

Snow Season

204 days

SepJun

Avg Annual Snowfall

93.2 in

Rank #21 of 217 tracked

Latest season (2025–26): first measurable snowfall arrived 50 days later than the 30-year normal.

Average Monthly Snowfall (inches)

0.8

Sep

6.7

Oct

13.4

Nov

13.0

Dec

11.7

Jan

15.0

Feb

15.9

Mar

14.7

Apr

2.0

May

Jun

How Boulder Compares

Boulder snowfall vs Colorado and U.S. medians
Measure	Boulder	Colorado median	U.S. median
Avg annual snowfall	93.2 in	50.0 in	39.1 in
Avg first snowfall	Oct 10	Oct 21	Nov 16
Avg last snowfall	May 1	Apr 29	Apr 3
Snow season length	204 days	193 days	139 days

Medians are taken across tracked cities with regular snowfall (8 in Colorado, 201 nationally).

Nearby Tracked Cities

Ski Resorts in Colorado

Data source: NOAA GHCN-Daily records for BOULDER (USC00050848), 2 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.