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November Weather in Longmont, United States

Last updated: June 24, 2025

In November, the average temperature in Longmont, United States hovers around 4°C (40°F). While you might encounter a chilly low of -12°C (10°F), the weather can also surprise you with highs reaching 25°C (78°F). Expect about 23 mm (0.9 in) of precipitation spread over 5 days, contributing to an average humidity of 79%.

November Temperature in Longmont

In November in Longmont, the average temperature is 4°C (40°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -12°C (10°F). Be prepared for a wide range of temperatures during your travels to Longmont in November.

November Weather in Longmont: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Longmont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longmont, November typically has an average temperature of 4°C (40°F), with highs reaching up to 25°C (78°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec303040485668747266494033
Data source: Temperature data for Longmont generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

November Precipitation in Longmont

In Longmont in November, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

November Precipitation Trends in Longmont

The chart displays monthly precipitation patterns in Longmont, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Longmont, November typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1926565511942314327382315
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Longmont

In Longmont in November, humidity is 79%. With an average temperature of 4°C (40°F), this humidity feels like a chilly dampness that wraps around you, making outdoor activities uncomfortable and leaving you longing for warmth as your breath hangs in the air.

November Average Humidity in Longmont

This chart illustrates the average monthly humidity levels in Longmont, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Longmont is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%75%67%67%68%62%63%63%72%80%85%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Longmont

In Longmont in November, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Longmont for better planning.

Maximum UV Index Levels in Longmont for November

The chart shows the monthly maximum UV Index (UVI) for Longmont in November, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In November, the maximum UV index in Longmont typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46811111212119643
Data source: Longmont November UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How November Weather in Longmont Compares to Other Months

Weather in Longmont varies notably across the year, with each month offering distinct climate conditions. This page compares November’s weather to other months in Longmont, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Longmont, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)19 mm (0.8 inches)84%moderate
February Weather-1°C (30°F)26 mm (1.0 inches)85%high
March Weather5°C (40°F)56 mm (2.2 inches)75%very high
April Weather9°C (48°F)55 mm (2.2 inches)67%extreme
May Weather13°C (56°F)119 mm (4.7 inches)67%extreme
June Weather20°C (69°F)42 mm (1.6 inches)68%extreme
July Weather23°C (75°F)31 mm (1.2 inches)62%extreme
August Weather22°C (73°F)43 mm (1.7 inches)63%extreme
September Weather19°C (66°F)27 mm (1.1 inches)63%very high
October Weather9°C (49°F)38 mm (1.5 inches)72%high
November Weather4°C (40°F)23 mm (0.9 inches)79%moderate
December Weather0°C (33°F)15 mm (0.6 inches)85%moderate

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