When to go · Waterloo, Iowa
Waterloo, Iowa in December
Mixed month. Outside the best window (May–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.
Key facts
- Verdict
- Mixed
- Temperature
- 38°C (100°F)100°F (38°C) / 22°C (72°F)72°F (22°C)
- average high / low
- Rain days
- 8
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Outside the best window (May–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.
Is another month better than December?
December is rated mixed. These months rate higher:
Weather in December
- Waterloo, IowaHighs around 38 °C (100 °F), lows around 22 °C (72 °F), rain on about 8 daysHighs around 100 °F (38 °C), lows around 72 °F (22 °C), rain on about 8 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas Day big impact
25 Dec · United States
Most businesses closed; flights full from about 20 Dec to 2 Jan.
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Waterloo, Iowa, side by side.
Verdict
Dec: Mixed
May: Great (better)
Daytime high
Dec: 38 °C (100 °F)100 °F (38 °C)
May: 71 °C (160 °F)160 °F (71 °C)
Night low
Dec: 22 °C (72 °F)72 °F (22 °C)
May: 50 °C (122 °F)122 °F (50 °C)
Rain days
Dec: 8
May: 4 (better)
Crowds
Dec: High
May: Medium
Prices
Dec: High
May: Medium
Festivals listed
Dec: 1
May: 1
December: Outside the best window (May–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.
May: Inside Waterloo, Iowa's best window: May–Oct.
Waterloo, Iowa: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen