When to go · Casper
Casper, month by month
The best months for Casper: Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Dec–Feb (cold, snow, wind).2 °C (36 °F) / -9 °C (16 °F), 6 rain days36 °F (2 °C) / 16 °F (-9 °C), 6 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Dec–Feb (cold, snow, wind).3 °C (37 °F) / -9 °C (16 °F), 6 rain days37 °F (3 °C) / 16 °F (-9 °C), 6 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Jun–Sep). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.9 °C (48 °F) / -5 °C (23 °F), 7 rain days48 °F (9 °C) / 23 °F (-5 °C), 7 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (Jun–Sep). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.13 °C (55 °F) / -2 °C (28 °F), 8 rain days55 °F (13 °C) / 28 °F (-2 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- MayGoodOutside the best window (Jun–Sep). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.19 °C (66 °F) / 3 °C (37 °F), 9 rain days66 °F (19 °C) / 37 °F (3 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Casper's best window: Jun–Sep.27 °C (81 °F) / 7 °C (45 °F), 7 rain days81 °F (27 °C) / 45 °F (7 °C), 7 rain daysCrowds: High
- JulyGreatInside Casper's best window: Jun–Sep.32 °C (90 °F) / 12 °C (54 °F), 6 rain days90 °F (32 °C) / 54 °F (12 °C), 6 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Casper's best window: Jun–Sep.30 °C (86 °F) / 11 °C (52 °F), 6 rain days86 °F (30 °C) / 52 °F (11 °C), 6 rain daysCrowds: High
- SeptemberGreatInside Casper's best window: Jun–Sep.24 °C (75 °F) / 6 °C (43 °F), 6 rain days75 °F (24 °C) / 43 °F (6 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGoodOutside the best window (Jun–Sep). Across United States: Best all-round month: New England foliage, desert parks, cooler cities. High roads start closing late in the month.15 °C (59 °F) / -1 °C (30 °F), 6 rain days59 °F (15 °C) / 30 °F (-1 °C), 6 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Jun–Sep). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.8 °C (46 °F) / -6 °C (21 °F), 6 rain days46 °F (8 °C) / 21 °F (-6 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Dec–Feb (cold, snow, wind).2 °C (36 °F) / -9 °C (16 °F), 6 rain days36 °F (2 °C) / 16 °F (-9 °C), 6 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Casper, side by side.
Verdict
Jun: Great
Jul: Great
Daytime high
Jun: 27 °C (81 °F)81 °F (27 °C)
Jul: 32 °C (90 °F)90 °F (32 °C)
Night low
Jun: 7 °C (45 °F)45 °F (7 °C)
Jul: 12 °C (54 °F)54 °F (12 °C)
Rain days
Jun: 7
Jul: 6 (better)
Crowds
Jun: High
Jul: High
Prices
Jun: High
Jul: High
Festivals listed
Jun: 0
Jul: 1
June: Inside Casper's best window: Jun–Sep.
July: Inside Casper's best window: Jun–Sep.
Casper: figures are long-term averages from this guide, not a forecast.