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When to go · Harwinton

Harwinton in May

Good month. Outside the best window (Sep–Oct (fair and mild weather)). 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
22°C (72°F) / 10°C (50°F)
average high / low
Rain days
11
Crowds
Medium
United States overall
Prices
Medium
United States overall

Verdict

GoodUnited States month rating

Outside the best window (Sep–Oct (fair and mild weather)). 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
  • HarwintonHighs around 22 °C (72 °F), lows around 10 °C (50 °F), rain on about 11 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 Harwinton, side by side.

  • Verdict

    May: Good

    Sep: Great (better)

  • Daytime high

    May: 22 °C (72 °F)

    Sep: 25 °C (77 °F)

  • Night low

    May: 10 °C (50 °F)

    Sep: 14 °C (57 °F)

  • Rain days

    May: 11

    Sep: 11

  • Crowds

    May: Medium

    Sep: Medium

  • Prices

    May: Medium

    Sep: Medium

  • Festivals listed

    May: 1

    Sep: 1

May: Outside the best window (Sep–Oct (fair and mild weather)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.

September: Inside Harwinton's best window: Sep–Oct (fair and mild weather).

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

What to pack

  • A warm layer for the evenings
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across United States in May →