Historical Weather in Plano, TX
See 55+ years of weather history for any date in Plano going back to 1970.
Part of Texas weather history
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Today in Plano Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for Plano, TX, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 96°F / Low: 75°F
Coldest MonthJanuaryAvg High: 56°F / Low: 34°F
Jan
56°/ 34°
💧 9.2"
Feb
60°/ 39°
💧 8.6"
Mar
69°/ 48°
💧 10.5"
Apr
76°/ 54°
💧 11.5"
May
83°/ 63°
💧 12.5"
Jun
91°/ 72°
💧 12.0"
Jul
95°/ 75°
💧 8.4"
Aug
96°/ 75°
💧 10.2"
Sep
89°/ 67°
💧 11.2"
Oct
79°/ 56°
💧 14.5"
Nov
67°/ 46°
💧 10.5"
Dec
59°/ 38°
💧 9.4"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Plano Temperature Records
- Record High: The hottest temperature ever recorded in Plano, TX is 112°F, set on June 26, 1980.
- Record Low: The coldest temperature ever recorded in Plano, TX is -4°F, set on December 23, 1989.
- Data Coverage: Based on 56 years of data from NOAA weather station: RICHARDSON.
All-Time Record High
112°F
June 26, 1980
All-Time Record Low
-4°F
December 23, 1989
Monthly Temperature Records in Plano
| Month | Record High | Record Low |
|---|---|---|
| January | 84°F(1970) | 5°F(1982) |
| February | 95°F(1996) | -4°F(2021) |
| March | 97°F(1974) | 13°F(1980) |
| April | 100°F(2006) | 19°F(1991) |
| May | 103°F(1985) | 35°F(2013) |
| June | 112°F(1980) | 50°F(1970) |
| July | 112°F(2018) | 53°F(1970) |
| August | 111°F(2011) | 53°F(1989) |
| September | 112°F(2000) | 39°F(1983) |
| October | 100°F(1979) | 24°F(1993) |
| November | 92°F(2017) | 15°F(1976) |
| December | 88°F(2005) | -4°F(1989) |
Plano Snow RecordsSee the top 10 snowiest days ever recorded
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