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When to go · Oroville, Washington

Oroville, Washington in May

Good month. Outside the best window (Jun–Aug (warm, lake swimming)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.

Key facts

Verdict
Good
Temperature
18°C (64°F) / 5°C (41°F)
average high / low
Rain days
8
Crowds
Medium
United States overall
Prices
Medium
United States overall

Verdict

GoodUnited States month rating

Outside the best window (Jun–Aug (warm, lake swimming)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.

Is another month better than May?

May is rated good. These months rate higher:

Weather in May

Long-term averages
  • Oroville, WashingtonHighs around 18 °C (64 °F), lows around 5 °C (41 °F), 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.

  • Memorial Day big impact

    Last Monday of May · United States

    Start of summer; roads and beaches full.

Crowds and prices

Crowds · United States overall
Medium
Prices · United States overall
Medium

United States overall: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.

Compare two months

Weather, crowds and prices for any two months in Oroville, Washington, side by side.

  • Verdict

    May: Good

    Jun: Great (better)

  • Daytime high

    May: 18 °C (64 °F)

    Jun: 24 °C (75 °F)

  • Night low

    May: 5 °C (41 °F)

    Jun: 10 °C (50 °F)

  • Rain days

    May: 8 (better)

    Jun: 9

  • Crowds

    May: Medium

    Jun: High

  • Prices

    May: Medium

    Jun: High

  • Festivals listed

    May: 1

    Jun: 0

May: Outside the best window (Jun–Aug (warm, lake swimming)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.

June: Inside Oroville, Washington's best window: Jun–Aug (warm, lake swimming).

Oroville, Washington: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm coat, hat and gloves for mornings and evenings

Build the full packing list for your trip →

Across United States in May →