Plano, Texas, United States climate

Average temperatures, precipitation and all-time records for Plano, Texas, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 95°F, and its coldest is January, with an average low of 37°F.

Plano is a city in the U.S. state of Texas, where it is the largest city in Collin County. A small portion of Plano is located in Denton County. Plano is one of the principal suburbs of the Dallas–Fort Worth metroplex. via Wikipedia

How today compares

Latest recorded day: 2026-07-24. Each reading placed on Plano, Texas, United States's own ±7-day seasonal distribution.

High 95°F Normal · 42nd pct

Low 80°F High · 89th pct

Feels-like 102°F Very Low · 9th pct

Humidity 21.4 g/m³ Very High · 97th pct

Wind 13 mph High · 84th pct

Gust 21 mph Above Normal · 62nd pct

Precip 0.00 in Dry

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Plano average temperatures by month

Typical daily high and low, and average precipitation, for each month in Plano, Texas, United States, based on 1980–2026 records. The wettest month is May (0.20 in on an average day).

Month	Avg high	Avg low	Avg precip
January	56°F	37°F	0.10 in
February	61°F	42°F	0.10 in
March	69°F	49°F	0.10 in
April	76°F	56°F	0.10 in
May	83°F	65°F	0.20 in
June	90°F	73°F	0.10 in
July	94°F	76°F	0.10 in
August	95°F	76°F	0.10 in
September	88°F	70°F	0.10 in
October	79°F	59°F	0.10 in
November	67°F	49°F	0.10 in
December	58°F	41°F	0.10 in

Jan 25°–70°

Feb 29°–75°

Mar 37°–80°

Apr 45°–84°

May 57°–89°

Jun 67°–95°

Jul 73°–100°

Aug 71°–101°

Sep 61°–95°

Oct 49°–88°

Nov 36°–79°

Dec 29°–71°

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

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Record extremes

Hottest day on record: 108°F on 2023-08-18
Coldest day on record: -1°F on 1989-12-23

All Plano weather records →

Percentiles compare each day to Plano, Texas, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →