When to go · Grass Valley
Grass Valley, month by month
The best months for Grass Valley: Apr, May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Jul, Aug, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Jul–Aug (hot, dry foothills), Dec–Feb (cold, occasional snow).12 °C (54 °F) / 2 °C (36 °F), 8 rain days54 °F (12 °C) / 36 °F (2 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jul–Aug (hot, dry foothills), Dec–Feb (cold, occasional snow).14 °C (57 °F) / 3 °C (37 °F), 8 rain days57 °F (14 °C) / 37 °F (3 °C), 8 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Apr–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.17 °C (63 °F) / 5 °C (41 °F), 8 rain days63 °F (17 °C) / 41 °F (5 °C), 8 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatInside Grass Valley's best window: Apr–Jun, Sep–Oct.20 °C (68 °F) / 7 °C (45 °F), 6 rain days68 °F (20 °C) / 45 °F (7 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Grass Valley's best window: Apr–Jun, Sep–Oct.25 °C (77 °F) / 11 °C (52 °F), 4 rain days77 °F (25 °C) / 52 °F (11 °C), 4 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Grass Valley's best window: Apr–Jun, Sep–Oct.30 °C (86 °F) / 14 °C (57 °F), 2 rain days86 °F (30 °C) / 57 °F (14 °C), 2 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jul–Aug (hot, dry foothills), Dec–Feb (cold, occasional snow).34 °C (93 °F) / 17 °C (63 °F), 1 rain days93 °F (34 °C) / 63 °F (17 °C), 1 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jul–Aug (hot, dry foothills), Dec–Feb (cold, occasional snow).34 °C (93 °F) / 17 °C (63 °F), 1 rain days93 °F (34 °C) / 63 °F (17 °C), 1 rain daysCrowds: High
- SeptemberGreatInside Grass Valley's best window: Apr–Jun, Sep–Oct.31 °C (88 °F) / 14 °C (57 °F), 2 rain days88 °F (31 °C) / 57 °F (14 °C), 2 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Grass Valley's best window: Apr–Jun, Sep–Oct.25 °C (77 °F) / 10 °C (50 °F), 4 rain days77 °F (25 °C) / 50 °F (10 °C), 4 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.17 °C (63 °F) / 5 °C (41 °F), 7 rain days63 °F (17 °C) / 41 °F (5 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Jul–Aug (hot, dry foothills), Dec–Feb (cold, occasional snow).12 °C (54 °F) / 2 °C (36 °F), 8 rain days54 °F (12 °C) / 36 °F (2 °C), 8 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Grass Valley, side by side.
Verdict
Apr: Great
May: Great
Daytime high
Apr: 20 °C (68 °F)68 °F (20 °C)
May: 25 °C (77 °F)77 °F (25 °C)
Night low
Apr: 7 °C (45 °F)45 °F (7 °C)
May: 11 °C (52 °F)52 °F (11 °C)
Rain days
Apr: 6
May: 4 (better)
Crowds
Apr: Medium
May: Medium
Prices
Apr: Medium
May: Medium
Festivals listed
Apr: 1
May: 1
April: Inside Grass Valley's best window: Apr–Jun, Sep–Oct.
May: Inside Grass Valley's best window: Apr–Jun, Sep–Oct.
Grass Valley: figures are long-term averages from this guide, not a forecast.