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Arvada, CO Weather on April 20
April 20th in Arvada, CO typically brings mild spring weather, with average highs around 60°F and lows near 32°F — a 28°F daily swing. Over 55 years of records, the warmest April 20th was in 1989 (64°F average), while the coldest was 2021 (28°F) — a 36°F range across recorded history. Precipitation has occurred on 27% of recorded April 20th dates, with snow falling 7% of the time (heaviest snowfall: 4"). The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Arvada, CO? Great weather for outdoor activities.
April 20 Weather Records for Arvada
- •The all-time record high for April 20th in Arvada, CO is 82°F, set in 2022.
- •The coldest April 20th on record dropped to 10°F in 1999.
- •A freeze (32°F or below) has occurred on April 20th in 25 of the last 55 years.
- •Last year (1971), April 20th was 6°F cooler than the long-term average.
Frequently Asked Questions
What was the warmest April 20 ever in Arvada?
The warmest April 20 in Arvada, CO reached 82°F in 2022. That is 22°F above the long-term average high of 60°F.
What was the coldest April 20 ever in Arvada?
The coldest April 20 in Arvada, CO dropped to 10°F in 1999. That is 22°F below the long-term average low of 32°F.
What is the average temperature on April 20 in Arvada?
On April 20, Arvada averages a high of 60°F and a low of 32°F based on 55 years of NOAA weather observations from WATERTON NORTH COLORADO.
How many years of weather data are available for April 20 in Arvada?
We have 55 years of weather records for April 20 in Arvada, 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 Arvada
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 44°F | 19°F | 0" | -- |
| 2024 | 39°F | 30°F | 0.58" | 0.6" |
| 2023 | 66°F | 23°F | 0.05" | -- |
| 2022 | 82°F | 34°F | 0" | -- |
| 2021 | 46°F | 11°F | 0.86" | 4" |
| 2020 | 60°F | 36°F | 0" | -- |
| 2019 | 73°F | 42°F | 0" | -- |
| 2018 | 65°F | 32°F | 0" | -- |
| 2017 | 75°F | 35°F | 0" | -- |
| 2016 | 49°F | 33°F | 0" | -- |
| 2015 | 51°F | 31°F | 0" | -- |
| 2014 | 68°F | 46°F | 0.18" | -- |
| 2013 | 51°F | 31°F | 0" | -- |
| 2012 | 64°F | 41°F | 0" | -- |
| 2011 | 43°F | 24°F | -- | -- |
| 2010 | 55°F | 38°F | -- | -- |
| 2009 | 61°F | 35°F | -- | -- |
| 2008 | 58°F | 38°F | -- | -- |
| 2007 | 62°F | 31°F | -- | -- |
| 2006 | 55°F | 25°F | -- | -- |
| 2005 | 41°F | 31°F | -- | -- |
| 2004 | 51°F | 33°F | -- | -- |
| 2003 | 52°F | 25°F | -- | -- |
| 2002 | 49°F | 30°F | 0" | -- |
| 2001 | 78°F | -- | 0" | -- |
| 2000 | 58°F | 33°F | 0" | -- |
| 1999 | 72°F | 10°F | 0" | -- |
| 1998 | 58°F | 29°F | 0.3" | -- |
| 1997 | 77°F | 40°F | 0" | -- |
| 1996 | 66°F | 21°F | 0" | -- |
| 1995 | 40°F | 25°F | 0" | -- |
| 1994 | 78°F | 46°F | 0" | -- |
| 1993 | 53°F | 28°F | 0" | -- |
| 1992 | 56°F | 28°F | 0.05" | -- |
| 1991 | 56°F | 33°F | 0" | -- |
| 1990 | 65°F | 40°F | 0.74" | -- |
| 1989 | 81°F | 48°F | 0" | -- |
| 1988 | 67°F | 42°F | 0" | -- |
| 1987 | 78°F | 20°F | 0.66" | 1" |
| 1986 | 60°F | 35°F | 0" | -- |
| 1985 | 63°F | 28°F | 0" | -- |
| 1984 | 60°F | 37°F | 0.18" | -- |
| 1983 | 68°F | 37°F | 0" | -- |
| 1982 | 44°F | 21°F | 0.51" | 2" |
| 1981 | 64°F | 44°F | 0.81" | -- |
| 1980 | 79°F | 43°F | 0" | -- |
| 1979 | 64°F | 36°F | 0" | -- |
| 1978 | 64°F | 28°F | 0" | -- |
| 1977 | 46°F | 34°F | 0.2" | -- |
| 1976 | 61°F | 35°F | 0.2" | -- |
| 1975 | 60°F | 34°F | 0" | -- |
| 1974 | 62°F | 34°F | 0" | -- |
| 1973 | 56°F | 30°F | 0" | -- |
| 1972 | 50°F | 34°F | 0.25" | -- |
| 1971 | 54°F | 32°F | 1.68" | -- |
Based on 55 years of data from NOAA station: WATERTON NORTH COLORADO
Monthly Climate Averages
Historical temperature and precipitation averages for Arvada, CO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.