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Longmont, United States Snapshot 2026
Where is Longmont?
Longmont, United States
- Continent
- Americas
- Country
- United States
- City
- Longmont
- Population
- 92.1K
- Elevation
- 1,519 m
- Coordinates
- 40.17°, -105.10°
Longmont is a city in United States with a population of approximately 92.1K. Average temperatures range from -9°C (17°F) in January to 31°C (88°F) in July. The best time to visit is June, July, August, September. The city sits at an elevation of 1,519 m above sea level.
Time in Longmont right now
Open full time & time zone page 15:13 13
Monday, June 15, 2026
IANA time zone
America/Denver
Daylight saving
DST in effect
MST / MDT
Next DST change
November 1
backward -1h
Live weather in Longmont
Daylight in Longmont today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 01m
Climate normals for Longmont
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 4°C / -9°C | 1°C / -13°C | 5days (23 mm) Good | 7.7h Good | 67% Muggy | 3.1 Moderate | Poor | View Details |
| February | 7°C / -8°C | 3°C / -12°C | 6days (28 mm) Good | 8.9h Good | 62% Muggy | 4.4 Moderate | Poor | View Details |
| March | 12°C / -3°C | 8°C / -7°C | 9days (52 mm) Wet | 9.9h Good | 61% Muggy | 5.8 High | Poor | View Details |
| April | 17°C / 1°C | 14°C / -3°C | 9days (51 mm) Wet | 10.9h Excellent | 57% Moderate | 6.9 High | Fair | View Details |
| May | 20°C / 6°C | 19°C / 3°C | 13days (105 mm) Wet | 11.5h Excellent | 64% Muggy | 7.7 Very High | Good | View Details |
| June best | 28°C / 12°C | 28°C / 11°C | 9days (49 mm) Wet | 13h Excellent | 56% Moderate | 8.2 Very High | Excellent | View Details |
| July best | 31°C / 16°C | 31°C / 15°C | 8days (39 mm) Wet | 13h Excellent | 53% Moderate | 8.3 Very High | Excellent | View Details |
| August best | 30°C / 15°C | 29°C / 14°C | 8days (37 mm) Wet | 11.9h Excellent | 54% Moderate | 7.7 Very High | Excellent | View Details |
| September best | 27°C / 11°C | 25°C / 10°C | 4days (26 mm) Good | 10.9h Excellent | 52% Moderate | 6.5 High | Excellent | View Details |
| October | 19°C / 4°C | 16°C / 1°C | 6days (27 mm) Good | 9.3h Good | 55% Moderate | 5 Moderate | Fair | View Details |
| November | 12°C / -2°C | 8°C / -6°C | 5days (23 mm) Good | 8.1h Good | 60% Moderate | 3.4 Moderate | Poor | View Details |
| December | 7°C / -6°C | 4°C / -10°C | 4days (17 mm) Good | 7.5h Good | 61% Muggy | 2.8 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 4°C / -9°C . Feb: 7°C / -8°C . Mar: 12°C / -3°C . Apr: 17°C / 1°C . May: 20°C / 6°C . Jun: 28°C / 12°C . Jul: 31°C / 16°C . Aug: 30°C / 15°C . Sep: 27°C / 11°C . Oct: 19°C / 4°C . Nov: 12°C / -2°C . Dec: 7°C / -6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 23 mm. Feb: 28 mm. Mar: 52 mm. Apr: 51 mm. May: 105 mm. Jun: 49 mm. Jul: 39 mm. Aug: 37 mm. Sep: 26 mm. Oct: 27 mm. Nov: 23 mm. Dec: 17 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 62%. Mar: 61%. Apr: 57%. May: 64%. Jun: 56%. Jul: 53%. Aug: 54%. Sep: 52%. Oct: 55%. Nov: 60%. Dec: 61%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 14 km/h . Mar: 15 km/h . Apr: 17 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 15 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 14 km/h . Nov: 13 km/h . Dec: 13 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 5. Nov: UV 3. Dec: UV 3.
Frequently Asked Questions
Longmont has a population of approximately 92.1K.
The best months to visit Longmont are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Longmont receives approximately 477mm of rainfall annually across 86 rainy days.
Longmont is located in United States, in the Americas region.
Longmont sits at an elevation of 1,519 m (4,984 ft) above sea level.