When to go · Castle Rock
Castle Rock in May
Great month. Inside Castle Rock's best window: May–Oct.
Key facts
- Verdict
- Great
- Temperature
- 23°C (73°F)73°F (23°C) / 9°C (48°F)48°F (9°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Castle Rock's best window: May–Oct.
Is another month better than May?
No other month rates higher than May for Castle Rock in this guide.
Weather in May
- Castle RockHighs around 23 °C (73 °F), lows around 9 °C (48 °F), rain on about 7 daysHighs around 73 °F (23 °C), lows around 48 °F (9 °C), rain on about 7 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 Castle Rock, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 23 °C (73 °F)73 °F (23 °C)
Jun: 28 °C (82 °F)82 °F (28 °C)
Night low
May: 9 °C (48 °F)48 °F (9 °C)
Jun: 13 °C (55 °F)55 °F (13 °C)
Rain days
May: 7
Jun: 6 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Castle Rock's best window: May–Oct.
June: Inside Castle Rock's best window: May–Oct.
Castle Rock: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings