Wing-Chi Poon / CC BY-SA 2.5
Longmont, CO Weather on July 11
July 11th in Longmont, CO typically brings hot summer weather, with average highs around 91°F and lows near 56°F — a 35°F daily swing. Over 55 years of records, the warmest July 11th was in 2022 (81°F average), while the coldest was 1982 (65°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 22% of July 11th dates historically, with the wettest July 11th recording 3.86" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
What to Expect on July 11
Planning for July 11th in Longmont, CO? Stay hydrated and seek shade during peak afternoon hours.
July 11 Weather Records for Longmont
- •The all-time record high for July 11th in Longmont, CO is 101°F, set in 2020.
- •The coldest July 11th on record dropped to 44°F in 1993.
- •Temperatures have reached 90°F or higher on July 11th in 29 of the last 55 years.
- •Last year (1971), July 11th was 7°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest July 11 ever in Longmont?
The warmest July 11 in Longmont, CO reached 101°F in 2020. That is 10°F above the long-term average high of 91°F.
What was the coldest July 11 ever in Longmont?
The coldest July 11 in Longmont, CO dropped to 44°F in 1993. That is 12°F below the long-term average low of 56°F.
What is the average temperature on July 11 in Longmont?
On July 11, Longmont averages a high of 91°F and a low of 56°F based on 55 years of NOAA weather observations from LONGMONT 2 ESE.
How many years of weather data are available for July 11 in Longmont?
We have 55 years of weather records for July 11 in Longmont, CO, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
July 11 Weather History in Longmont
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 92°F | 56°F | 0" | -- |
| 2024 | 92°F | 57°F | 0" | -- |
| 2023 | 94°F | 57°F | 0.03" | -- |
| 2022 | 100°F | 62°F | 0.08" | -- |
| 2021 | 84°F | 57°F | 0" | -- |
| 2020 | 101°F | 60°F | 0" | -- |
| 2019 | 87°F | 57°F | 0" | -- |
| 2018 | 98°F | 62°F | 0" | -- |
| 2017 | 94°F | 61°F | 0" | -- |
| 2016 | 88°F | 62°F | 0" | -- |
| 2015 | 84°F | 54°F | 0.13" | -- |
| 2014 | 87°F | 62°F | 0.13" | -- |
| 2013 | 98°F | 58°F | 0" | -- |
| 2012 | 84°F | 56°F | 0" | -- |
| 2011 | 81°F | 58°F | 0.51" | -- |
| 2010 | 84°F | 53°F | 0" | -- |
| 2009 | 89°F | 57°F | 0" | -- |
| 2008 | 98°F | 60°F | 0" | -- |
| 2007 | 79°F | 54°F | 0.46" | -- |
| 2006 | 87°F | 58°F | 0.15" | -- |
| 2005 | 91°F | 56°F | 0" | -- |
| 2004 | 87°F | 55°F | 0" | -- |
| 2003 | 95°F | 56°F | 0" | -- |
| 2002 | 88°F | 56°F | 0" | -- |
| 2001 | 88°F | 54°F | 0.03" | -- |
| 2000 | 95°F | 57°F | 0" | -- |
| 1999 | 84°F | 54°F | 0" | -- |
| 1998 | 88°F | 52°F | 0" | -- |
| 1997 | 94°F | 56°F | 0" | -- |
| 1996 | 86°F | 52°F | 0" | -- |
| 1995 | 97°F | 57°F | 0" | -- |
| 1994 | 98°F | 59°F | 0" | -- |
| 1993 | 98°F | 44°F | 0.08" | -- |
| 1992 | 86°F | 57°F | 0" | -- |
| 1991 | 85°F | 54°F | 0" | -- |
| 1990 | 86°F | 58°F | 0" | -- |
| 1989 | 93°F | 58°F | 0" | -- |
| 1988 | 87°F | 51°F | 0.53" | -- |
| 1987 | 95°F | 59°F | 0" | -- |
| 1986 | 85°F | 53°F | 0" | -- |
| 1985 | 94°F | 58°F | 0" | -- |
| 1984 | 83°F | 52°F | 0" | -- |
| 1983 | 92°F | 53°F | 3.86" | -- |
| 1982 | 81°F | 49°F | 0" | -- |
| 1981 | 94°F | 61°F | 0" | -- |
| 1980 | 95°F | 63°F | 0" | -- |
| 1979 | 99°F | 55°F | 0" | -- |
| 1978 | 88°F | 58°F | 0" | -- |
| 1977 | 96°F | 51°F | 0" | -- |
| 1976 | 101°F | 58°F | 0" | -- |
| 1975 | 82°F | 54°F | 0" | -- |
| 1974 | 92°F | 53°F | 0.03" | -- |
| 1973 | 91°F | 54°F | 0" | -- |
| 1972 | 90°F | 53°F | 0" | -- |
| 1971 | 98°F | 54°F | 0" | -- |
Based on 55 years of data from NOAA station: LONGMONT 2 ESE
Monthly Climate Averages
Historical temperature and precipitation averages for Longmont, CO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.