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Stamford, CT Weather on April 20
April 20th in Stamford, CT typically brings mild spring weather, with average highs around 66°F and lows near 41°F — a 25°F daily swing. Over 55 years of records, the warmest April 20th was in 1976 (69°F average), while the coldest was 1983 (40°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 25% of April 20th dates historically, with the wettest April 20th recording 4.45" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Stamford, CT? Great weather for outdoor activities.
April 20 Weather Records for Stamford
- •The all-time record high for April 20th in Stamford, CT is 87°F, set in 2005.
- •The coldest April 20th on record dropped to 29°F in 2001.
- •A freeze (32°F or below) has occurred on April 20th in 8 of the last 55 years.
Frequently Asked Questions
What was the warmest April 20 ever in Stamford?
The warmest April 20 in Stamford, CT reached 87°F in 2005. That is 21°F above the long-term average high of 66°F.
What was the coldest April 20 ever in Stamford?
The coldest April 20 in Stamford, CT dropped to 29°F in 2001. That is 12°F below the long-term average low of 41°F.
What is the average temperature on April 20 in Stamford?
On April 20, Stamford averages a high of 66°F and a low of 41°F based on 55 years of NOAA weather observations from STAMFORD 5 N.
How many years of weather data are available for April 20 in Stamford?
We have 55 years of weather records for April 20 in Stamford, CT, 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 Stamford
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 71°F | 46°F | 0" | -- |
| 2024 | 66°F | 42°F | 0.25" | -- |
| 2023 | 67°F | 39°F | 0" | -- |
| 2022 | 48°F | 42°F | -- | -- |
| 2021 | 71°F | 42°F | 0" | -- |
| 2020 | 53°F | 39°F | 0" | -- |
| 2019 | 72°F | 59°F | 2.03" | -- |
| 2018 | 49°F | 33°F | 0" | -- |
| 2017 | 65°F | 44°F | -- | -- |
| 2016 | 65°F | 38°F | 0" | -- |
| 2015 | 56°F | 43°F | 4.45" | -- |
| 2014 | 65°F | 31°F | 0" | -- |
| 2013 | 74°F | 46°F | 0.51" | -- |
| 2012 | 70°F | 45°F | 0.03" | -- |
| 2011 | 60°F | 43°F | 0" | -- |
| 2010 | 68°F | 35°F | 0" | -- |
| 2009 | 47°F | 41°F | 2.69" | -- |
| 2008 | 64°F | 48°F | 0" | -- |
| 2007 | 73°F | 36°F | 0" | -- |
| 2006 | 79°F | 49°F | 0" | -- |
| 2005 | 87°F | 47°F | 0" | -- |
| 2004 | 77°F | 57°F | 0" | -- |
| 2003 | 66°F | 35°F | 0" | -- |
| 2002 | 77°F | 53°F | 0.46" | -- |
| 2001 | 66°F | 29°F | 0" | -- |
| 2000 | 64°F | 45°F | 0" | -- |
| 1999 | 58°F | 33°F | 0.64" | -- |
| 1998 | 57°F | 46°F | 1.73" | -- |
| 1997 | 62°F | 34°F | 0" | -- |
| 1996 | 70°F | 42°F | 0" | -- |
| 1995 | 69°F | 42°F | 0" | -- |
| 1994 | 70°F | 40°F | 0.1" | -- |
| 1993 | 71°F | 49°F | 0" | -- |
| 1992 | 56°F | 43°F | 0" | -- |
| 1991 | 53°F | 32°F | 0" | -- |
| 1990 | 63°F | 37°F | 0" | -- |
| 1989 | 66°F | 32°F | 0" | -- |
| 1988 | 58°F | 30°F | 0" | -- |
| 1987 | 76°F | 51°F | 0" | -- |
| 1986 | 64°F | 31°F | 0" | -- |
| 1985 | 64°F | 51°F | 0" | -- |
| 1984 | 59°F | 43°F | 0" | -- |
| 1983 | 46°F | 34°F | 0.15" | -- |
| 1982 | 67°F | 35°F | 0" | -- |
| 1981 | 62°F | 46°F | 0" | -- |
| 1980 | 73°F | 36°F | 0" | -- |
| 1979 | 64°F | 30°F | 0" | -- |
| 1978 | 58°F | 46°F | 0.89" | -- |
| 1977 | 71°F | 36°F | 0" | -- |
| 1976 | 85°F | 54°F | 0" | -- |
| 1975 | 66°F | 46°F | 0" | -- |
| 1974 | 61°F | 30°F | 0" | -- |
| 1973 | 74°F | 49°F | 0.41" | -- |
| 1972 | 81°F | 39°F | 2.67" | -- |
| 1971 | 68°F | 39°F | 0" | -- |
Based on 55 years of data from NOAA station: STAMFORD 5 N
Monthly Climate Averages
Historical temperature and precipitation averages for Stamford, CT, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.