When to go · Longmont
Longmont, month by month
The best months for Longmont: May, Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb.
Month by month
- JanuaryAvoidListed as a month to avoid: Jan–Feb (cold, snow).5 °C (41 °F) / -8 °C (18 °F), 8 rain days41 °F (5 °C) / 18 °F (-8 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jan–Feb (cold, snow).7 °C (45 °F) / -6 °C (21 °F), 7 rain days45 °F (7 °C) / 21 °F (-6 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (May–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.12 °C (54 °F) / 0 °C (32 °F), 6 rain days54 °F (12 °C) / 32 °F (0 °C), 6 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (May–Oct). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.16 °C (61 °F) / 4 °C (39 °F), 5 rain days61 °F (16 °C) / 39 °F (4 °C), 5 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Longmont's best window: May–Oct.22 °C (72 °F) / 9 °C (48 °F), 4 rain days72 °F (22 °C) / 48 °F (9 °C), 4 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Longmont's best window: May–Oct.27 °C (81 °F) / 13 °C (55 °F), 3 rain days81 °F (27 °C) / 55 °F (13 °C), 3 rain daysCrowds: High
- JulyGreatInside Longmont's best window: May–Oct.30 °C (86 °F) / 16 °C (61 °F), 2 rain days86 °F (30 °C) / 61 °F (16 °C), 2 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Longmont's best window: May–Oct.29 °C (84 °F) / 15 °C (59 °F), 2 rain days84 °F (29 °C) / 59 °F (15 °C), 2 rain daysCrowds: High
- SeptemberGreatInside Longmont's best window: May–Oct.24 °C (75 °F) / 10 °C (50 °F), 4 rain days75 °F (24 °C) / 50 °F (10 °C), 4 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Longmont's best window: May–Oct.17 °C (63 °F) / 5 °C (41 °F), 6 rain days63 °F (17 °C) / 41 °F (5 °C), 6 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.9 °C (48 °F) / -1 °C (30 °F), 8 rain days48 °F (9 °C) / 30 °F (-1 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- DecemberMixedOutside the best window (May–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.5 °C (41 °F) / -6 °C (21 °F), 9 rain days41 °F (5 °C) / 21 °F (-6 °C), 9 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Longmont, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 22 °C (72 °F)72 °F (22 °C)
Jun: 27 °C (81 °F)81 °F (27 °C)
Night low
May: 9 °C (48 °F)48 °F (9 °C)
Jun: 13 °C (55 °F)55 °F (13 °C)
Rain days
May: 4
Jun: 3 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Longmont's best window: May–Oct.
June: Inside Longmont's best window: May–Oct.
Longmont: figures are long-term averages from this guide, not a forecast.