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McKinney, TX Weather on May 27
May 27th in McKinney, TX typically brings warm spring weather, with average highs around 86°F and lows near 65°F. Over 55 years of records, the warmest May 27th was in 2017 (84°F average), while the coldest was 1992 (63°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 27th dates historically, with the wettest May 27th recording 6.25" of rain. Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on May 27
Planning for May 27th in McKinney, TX? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
May 27 Weather Records for McKinney
- •The all-time record high for May 27th in McKinney, TX is 96°F, set in 2024.
- •The coldest May 27th on record dropped to 50°F in 1988.
- •Temperatures have reached 90°F or higher on May 27th in 16 of the last 55 years.
Frequently Asked Questions
What was the warmest May 27 ever in McKinney?
The warmest May 27 in McKinney, TX reached 96°F in 2024. That is 10°F above the long-term average high of 86°F.
What was the coldest May 27 ever in McKinney?
The coldest May 27 in McKinney, TX dropped to 50°F in 1988. That is 15°F below the long-term average low of 65°F.
What is the average temperature on May 27 in McKinney?
On May 27, McKinney averages a high of 86°F and a low of 65°F based on 55 years of NOAA weather observations from MCKINNEY MUNI AP.
How many years of weather data are available for May 27 in McKinney?
We have 55 years of weather records for May 27 in McKinney, TX, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
May 27 Weather History in McKinney
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 82°F | 66°F | 0" | -- |
| 2024 | 96°F | 67°F | 0" | -- |
| 2023 | 84°F | 66°F | 0" | -- |
| 2022 | 87°F | 52°F | 0" | -- |
| 2021 | 88°F | 67°F | 2.44" | -- |
| 2020 | 86°F | 58°F | 0" | -- |
| 2019 | 88°F | 73°F | 0" | -- |
| 2018 | 94°F | 72°F | 0" | -- |
| 2017 | 91°F | 77°F | 0" | -- |
| 2016 | 79°F | 65°F | 1.88" | -- |
| 2015 | 86°F | 62°F | 0" | -- |
| 2014 | 79°F | 65°F | 0.3" | -- |
| 2013 | 85°F | 72°F | 0" | -- |
| 2012 | 93°F | 69°F | 0" | -- |
| 2011 | 92°F | 61°F | 0" | -- |
| 2010 | 92°F | 65°F | 0" | -- |
| 2009 | 79°F | 61°F | 0.2" | -- |
| 2008 | 78°F | 66°F | 4.5" | -- |
| 2007 | 76°F | 67°F | 0.76" | -- |
| 2006 | 94°F | 73°F | 0" | -- |
| 2005 | 86°F | 62°F | 0" | -- |
| 2004 | 89°F | 68°F | 6.25" | -- |
| 2003 | 83°F | 57°F | 0" | -- |
| 2002 | 82°F | 67°F | 0.38" | -- |
| 2001 | 91°F | 65°F | 0" | -- |
| 2000 | 93°F | 65°F | 2.74" | -- |
| 1999 | 76°F | 62°F | 0.03" | -- |
| 1998 | 81°F | 66°F | 3.1" | -- |
| 1997 | 91°F | 73°F | 0" | -- |
| 1996 | 96°F | 68°F | 1.22" | -- |
| 1995 | 87°F | 66°F | 0.43" | -- |
| 1994 | 80°F | 64°F | 0" | -- |
| 1993 | 83°F | 56°F | 0" | -- |
| 1992 | 74°F | 53°F | 0" | -- |
| 1991 | 90°F | 70°F | 0" | -- |
| 1990 | 84°F | 52°F | 0" | -- |
| 1989 | 88°F | 61°F | 0" | -- |
| 1988 | 85°F | 50°F | 0" | -- |
| 1987 | 88°F | 72°F | 0" | -- |
| 1986 | 79°F | 61°F | 0.2" | -- |
| 1985 | 89°F | 64°F | 0" | -- |
| 1984 | 94°F | 72°F | 0" | -- |
| 1983 | 88°F | 64°F | 0" | -- |
| 1982 | 86°F | 69°F | 0.2" | -- |
| 1981 | 86°F | 63°F | 4.14" | -- |
| 1980 | 90°F | 72°F | 0" | -- |
| 1979 | 86°F | 65°F | 0" | -- |
| 1978 | 88°F | 68°F | 0" | -- |
| 1977 | 91°F | 64°F | 0" | -- |
| 1976 | 76°F | 59°F | 0.69" | -- |
| 1975 | 88°F | 69°F | 0" | -- |
| 1974 | 81°F | 55°F | 0" | -- |
| 1973 | 88°F | 61°F | 0" | -- |
| 1972 | 92°F | 61°F | 0" | -- |
| 1971 | 89°F | 62°F | 1.78" | -- |
Based on 55 years of data from NOAA station: MCKINNEY MUNI AP
Monthly Climate Averages
Historical temperature and precipitation averages for McKinney, TX, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.