Weather on August 18

Frisco, TX

55 Years of Data

Avg High
94°F
Avg Low
73°F
Warmest
2011
94°F avg
Coldest
1992
71°F avg

About This Date

August 18th in Frisco, TX typically brings hot summer weather, with average highs around 94°F and lows near 73°F. Over 55 years of records, the warmest August 18th was in 2011 (94°F average), while the coldest was 1992 (71°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 24% of August 18th dates historically, with the wettest August 18th recording 3.1" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

Planning for August 18th in Frisco, TX? Stay hydrated and seek shade during peak afternoon hours.

Warming Trend
0.4°F per decade on this date
YearHighLowAvgPrecipSnow
2025100°80°90°
2024106°82°94°
2023108°81°94°
202284°73°79°0.33"
202181°72°76°1.85"
202093°74°83°
201997°79°88°
201899°71°85°1.83"
201789°75°82°
201688°73°80°0.66"
201596°77°87°
201491°73°82°
201391°64°78°
201284°68°76°0.71"
2011warmest105°82°94°
201095°78°87°0.1"
200995°77°86°
200878°72°75°0.97"
200788°74°81°
2006103°81°92°
200598°75°87°
200493°63°78°
200399°74°86°
200295°72°83°
200175°71°73°3.1"
2000105°74°89°
199996°72°84°
199896°73°85°
199794°
199690°
199599°71°85°
199498°74°86°
1993101°72°86°
1992coldest82°61°71°
199196°73°85°
199095°76°85°
198992°53°72°0.25"
198892°71°81°
1987101°77°89°
1986102°75°89°
1985101°76°88°
1984101°75°88°
198396°69°83°
198292°73°82°1.57"
198184°69°77°0.79"
198099°76°87°
197993°71°82°
1978102°76°89°
197796°73°85°2.16"
197693°71°82°
197594°72°83°0.64"
197497°72°84°
197392°67°79°
197296°70°83°
197190°69°79°
55 years of data from RICHARDSON

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.