Cool
Average highs are around 11°C, so pack for cooler days.
Weather Guide
Longmont, Colorado, United States Average Monthly Weather
Weather score54Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 17°C, sunshine averages 8.3h per day, and rainfall totals about 400mm.
Annual weather
Annual averages
Temp
17°C
Rain
400mm
Annual total
Sun
8.3h
Weather score
54
Mixed avg
Seasonal climate calendar
Trip feel
Drier
Rainfall averages 21mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Map
Weather map
Compare Longmont, Colorado, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
November11°C average high
November is on the cooler side of Longmont's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
November21mm average rain
November sits on the drier side of Longmont's year, which helps with sightseeing and transfers.
Driest monthsJanuary to March and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
November6.1 hours average sun
November is one of Longmont's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
November41 weather score
November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
