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Plano, TX Weather on April 20
April 20th in Plano, TX typically brings pleasant spring weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest April 20th was in 1972 (78°F average), while the coldest was 2021 (51°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 27% of April 20th dates historically, with the wettest April 20th recording 5.72" of rain. The last decade has been 4.2°F cooler on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Plano, TX? Great weather for outdoor activities.
April 20 Weather Records for Plano
- •The all-time record high for April 20th in Plano, TX is 91°F, set in 1987.
- •The coldest April 20th on record dropped to 40°F in 1978.
- •Temperatures have reached 90°F or higher on April 20th in 1 of the last 55 years.
Frequently Asked Questions
What was the warmest April 20 ever in Plano?
The warmest April 20 in Plano, TX reached 91°F in 1987. That is 14°F above the long-term average high of 77°F.
What was the coldest April 20 ever in Plano?
The coldest April 20 in Plano, TX dropped to 40°F in 1978. That is 16°F below the long-term average low of 56°F.
What is the average temperature on April 20 in Plano?
On April 20, Plano averages a high of 77°F and a low of 56°F based on 55 years of NOAA weather observations from RICHARDSON.
How many years of weather data are available for April 20 in Plano?
We have 55 years of weather records for April 20 in Plano, TX, 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 Plano
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 76°F | 62°F | 0.61" | -- |
| 2024 | 70°F | 48°F | 5.72" | -- |
| 2023 | 74°F | 60°F | 2.54" | -- |
| 2022 | 82°F | 63°F | 0.03" | -- |
| 2021 | 61°F | 41°F | 0" | -- |
| 2020 | 75°F | 53°F | 0" | -- |
| 2019 | 78°F | 45°F | 0" | -- |
| 2018 | 67°F | 48°F | 0" | -- |
| 2017 | 83°F | 68°F | 0" | -- |
| 2016 | 73°F | 59°F | 4.47" | -- |
| 2015 | 69°F | 48°F | 0" | -- |
| 2014 | 77°F | 55°F | 0" | -- |
| 2013 | 71°F | 46°F | 0" | -- |
| 2012 | 71°F | 55°F | 0.23" | -- |
| 2011 | 71°F | 58°F | 0" | -- |
| 2010 | 72°F | 52°F | 0" | -- |
| 2009 | 79°F | 50°F | 0" | -- |
| 2008 | 76°F | 56°F | 0" | -- |
| 2007 | 78°F | 62°F | 0" | -- |
| 2006 | 74°F | 60°F | 2.39" | -- |
| 2005 | 76°F | 63°F | 0" | -- |
| 2004 | 78°F | 62°F | 0" | -- |
| 2003 | 73°F | 50°F | 0" | -- |
| 2002 | 83°F | 69°F | 0" | -- |
| 2001 | 71°F | 57°F | 0" | -- |
| 2000 | 83°F | 57°F | 0" | -- |
| 1999 | 85°F | 63°F | 0" | -- |
| 1998 | 77°F | 48°F | 0" | -- |
| 1997 | 83°F | 54°F | 0" | -- |
| 1996 | 77°F | 57°F | 0" | -- |
| 1995 | 77°F | 58°F | 1.93" | -- |
| 1994 | 85°F | 58°F | 0" | -- |
| 1993 | 85°F | 52°F | 0.03" | -- |
| 1992 | 65°F | 52°F | 0" | -- |
| 1991 | 70°F | 49°F | 0" | -- |
| 1990 | 69°F | 62°F | 0.2" | -- |
| 1989 | 79°F | 49°F | 0" | -- |
| 1988 | 82°F | 49°F | 0" | -- |
| 1987 | 91°F | 62°F | 0" | -- |
| 1986 | 73°F | -- | 3.05" | -- |
| 1985 | 79°F | 68°F | 0" | -- |
| 1984 | 87°F | 60°F | 0" | -- |
| 1983 | 61°F | 43°F | 0" | -- |
| 1982 | 76°F | 58°F | 0" | -- |
| 1981 | 84°F | 62°F | 0" | -- |
| 1980 | 88°F | 55°F | 0" | -- |
| 1979 | 78°F | 58°F | 0.64" | -- |
| 1978 | 68°F | 40°F | 0" | -- |
| 1977 | 80°F | 59°F | 3.43" | -- |
| 1976 | 71°F | 58°F | 1.55" | -- |
| 1975 | 76°F | 43°F | 0" | -- |
| 1974 | 81°F | 65°F | 0" | -- |
| 1973 | 82°F | 68°F | 0" | -- |
| 1972 | 87°F | 70°F | 0" | -- |
| 1971 | 81°F | 52°F | 0.48" | -- |
Based on 55 years of data from NOAA station: RICHARDSON
Monthly Climate Averages
Historical temperature and precipitation averages for Plano, TX, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.