Joshua Tree National Park / Public domain
Fort Collins, CO Weather on April 20
April 20th in Fort Collins, CO typically brings mild spring weather, with average highs around 61°F and lows near 36°F — a 25°F daily swing. Over 54 years of records, the warmest April 20th was in 1989 (64°F average), while the coldest was 2021 (25°F) — a 39°F range across recorded history. Precipitation has occurred on 39% of recorded April 20th dates, with snow falling 13% of the time (heaviest snowfall: 9.1"). The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Fort Collins, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
April 20 Weather Records for Fort Collins
- •The all-time record high for April 20th in Fort Collins, CO is 82°F, set in 1989.
- •The coldest April 20th on record dropped to 11°F in 2021.
- •A freeze (32°F or below) has occurred on April 20th in 14 of the last 54 years.
- •Last year (1971), April 20th was 10°F cooler than the long-term average.
Frequently Asked Questions
What was the warmest April 20 ever in Fort Collins?
The warmest April 20 in Fort Collins, CO reached 82°F in 1989. That is 21°F above the long-term average high of 61°F.
What was the coldest April 20 ever in Fort Collins?
The coldest April 20 in Fort Collins, CO dropped to 11°F in 2021. That is 25°F below the long-term average low of 36°F.
What is the average temperature on April 20 in Fort Collins?
On April 20, Fort Collins averages a high of 61°F and a low of 36°F based on 54 years of NOAA weather observations from FT COLLINS.
How many years of weather data are available for April 20 in Fort Collins?
We have 54 years of weather records for April 20 in Fort Collins, CO, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 20 Weather History in Fort Collins
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 66°F | 27°F | 0" | -- |
| 2024 | 36°F | 30°F | 0.38" | 2.2" |
| 2023 | 50°F | 32°F | 0" | -- |
| 2022 | 74°F | 45°F | 0" | -- |
| 2021 | 39°F | 11°F | 0.13" | 0.5" |
| 2020 | 68°F | 34°F | 0" | -- |
| 2019 | 78°F | 43°F | 0" | -- |
| 2018 | 57°F | 36°F | 0.23" | -- |
| 2017 | 61°F | 37°F | 0.46" | -- |
| 2016 | 60°F | 38°F | 0" | -- |
| 2015 | 56°F | 33°F | 0.05" | 0.1" |
| 2014 | 75°F | 40°F | 0" | -- |
| 2013 | 58°F | 32°F | 0" | -- |
| 2012 | 72°F | 35°F | 0.03" | -- |
| 2011 | 50°F | 31°F | 0.03" | -- |
| 2010 | 64°F | 44°F | 0" | -- |
| 2009 | 73°F | 36°F | 0" | -- |
| 2008 | 76°F | 41°F | 0" | -- |
| 2007 | 70°F | 33°F | 0" | -- |
| 2006 | 67°F | 33°F | 0" | -- |
| 2005 | 56°F | 40°F | 1.4" | -- |
| 2004 | 66°F | 44°F | 0" | -- |
| 2003 | 60°F | 33°F | 0" | -- |
| 2002 | 39°F | 32°F | 0.33" | 0.2" |
| 2001 | 69°F | 47°F | 0.08" | -- |
| 2000 | 69°F | 38°F | 0" | -- |
| 1999 | 68°F | 48°F | 0" | -- |
| 1998 | 54°F | 32°F | 0.3" | -- |
| 1997 | 74°F | 42°F | 0" | -- |
| 1996 | 55°F | 26°F | 0" | -- |
| 1995 | 50°F | 33°F | 0" | -- |
| 1994 | 76°F | 43°F | 0" | -- |
| 1993 | 50°F | 28°F | 0.1" | -- |
| 1992 | 61°F | 38°F | 0" | -- |
| 1991 | 57°F | 38°F | 0.05" | -- |
| 1990 | 70°F | 39°F | 0" | -- |
| 1989 | 82°F | 46°F | 0" | -- |
| 1988 | 70°F | 41°F | 0" | -- |
| 1987 | 52°F | 31°F | 1.12" | 2" |
| 1986 | 69°F | 41°F | 0" | -- |
| 1985 | 64°F | 38°F | 0.05" | -- |
| 1984 | 47°F | 32°F | 5.16" | 9.1" |
| 1983 | 68°F | 37°F | 0" | -- |
| 1982 | 39°F | 21°F | 0.08" | 1" |
| 1981 | 61°F | 44°F | 0.36" | -- |
| 1980 | 80°F | 38°F | 0" | -- |
| 1979 | 58°F | 37°F | 0" | -- |
| 1978 | 61°F | 30°F | 0" | -- |
| 1977 | 52°F | 37°F | 0.2" | -- |
| 1976 | 60°F | 35°F | 0" | -- |
| 1975 | 62°F | 39°F | 0" | -- |
| 1974 | 62°F | 35°F | 0" | -- |
| 1972 | 49°F | 33°F | 0.41" | -- |
| 1971 | 51°F | 34°F | 0.64" | -- |
Based on 54 years of data from NOAA station: FT COLLINS
Monthly Climate Averages
Historical temperature and precipitation averages for Fort Collins, CO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.