Best year time to visit City of Longmont

General weather information about City of Longmont

Average annual temperature is 8.8 °C

Absolute maximum temperature: 35.0 °C

Absolute minimum temperature: -32.4 °C

Number of sunny days: 206 days

Number of rainy days: 118 days

Number of snow days: 41 days

* Weather data for City of Longmont United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.2	14.3	18.8	28.0	26.6	32.7	35.0	34.7	34.3	28.9	21.6	12.9
Average daytime temperature (°C)	0.7	5.3	9.1	17.0	22.1	23.9	29.6	29.0	26.2	18.7	11.6	6.9
Average temperature (°C)	-4.3	-3.2	1.0	7.5	14.4	17.1	21.4	20.8	17.1	10.2	2.6	0.0
Average night temperature (°C)	-9.1	-10.1	-4.8	0.1	7.7	11.2	13.7	13.8	9.5	3.5	-3.4	-4.8
Absolute minimum temperature (°C)	-24.9	-32.4	-12.5	-8.7	3.4	8.5	9.2	10.7	5.0	-16.0	-12.2	-10.6

The best time to visit City of Longmont during the most sunny months:

The largest precipitation sum in City of Longmont is at

May — 156(mm)

June — 168(mm)

August — 94(mm)

When is the best time to visit City of Longmont?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit City of Longmont.

What is the weather like in City of Longmont?

See average temperature, rainfall and daylight hours for City of Longmont by month in the table above.

How many sunny days does City of Longmont have?

The monthly weather statistics above show sunshine and rainfall patterns for City of Longmont throughout the year.