Plano, TX Weather by Month and Climate Averages

How much rain does Plano get?

Plano gets 41.9 in of precipitation in an average year, spread over about 87 days with measurable rain. That is fewer rainy days than 52% of the US.

October is the wettest month, with 5.3 in. July is the driest, with 2.2 in. May has the most rainy days, about 9.

The longest dry spell in the last five years lasted 46 days, to August 4, 2022.

See where Plano ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Texas.

Does it snow in Plano?

The snowiest winter on record is 1977–78, with 14.1 in.

The most recent measurable snow at the station fell on January 10, 2025.

See where Plano ranks: snowiest cities in the US.

Plano weather by month

Plano weather in January

In January, Plano averages a high of 55°F and a low of 35°F. It gets 2.8 in of precipitation over about 8 rainy days. The sun is out about 52% of daylight hours. The January record high is 82°F (2023) and the record low is 6°F (2024).

Plano weather in February

In February, Plano averages a high of 60°F and a low of 39°F. It gets 3.4 in of precipitation over about 8 rainy days. The sun is out about 46% of daylight hours. The February record high is 91°F (2024) and the record low is 0°F (2021).

Plano weather in March

In March, Plano averages a high of 69°F and a low of 49°F. It gets 3.6 in of precipitation over about 9 rainy days. The sun is out about 44% of daylight hours. The March record high is 92°F (2026) and the record low is 13°F (1980). March is one of the most comfortable months to visit.

Plano weather in April

In April, Plano averages a high of 76°F and a low of 55°F. It gets 3.5 in of precipitation over about 8 rainy days. The sun is out about 44% of daylight hours. The April record high is 99°F (2006) and the record low is 32°F (2018). April is one of the most comfortable months to visit.

Plano weather in May

In May, Plano averages a high of 83°F and a low of 64°F. It gets 5.2 in of precipitation over about 9 rainy days. The sun is out about 38% of daylight hours. The May record high is 98°F (1980) and the record low is 38°F (2013).

Plano weather in June

In June, Plano averages a high of 91°F and a low of 72°F. It gets 3.8 in of precipitation over about 7 rainy days. The sun is out about 54% of daylight hours. The June record high is 112°F (1980) and the record low is 58°F (2015).

Plano weather in July

In July, Plano averages a high of 95°F and a low of 76°F. It gets 2.2 in of precipitation over about 5 rainy days. The sun is out about 59% of daylight hours. The July record high is 107°F (2022) and the record low is 59°F (2013).

Plano weather in August

In August, Plano averages a high of 95°F and a low of 76°F. It gets 2.5 in of precipitation over about 5 rainy days. The sun is out about 63% of daylight hours. The August record high is 109°F (2024) and the record low is 59°F (2015).

Plano weather in September

In September, Plano averages a high of 88°F and a low of 68°F. It gets 3.3 in of precipitation over about 6 rainy days. The sun is out about 65% of daylight hours. The September record high is 107°F (2023) and the record low is 52°F (2009).

Plano weather in October

In October, Plano averages a high of 78°F and a low of 56°F. It gets 5.3 in of precipitation over about 8 rainy days. The sun is out about 68% of daylight hours. The October record high is 100°F (1979) and the record low is 29°F (2019).

Plano weather in November

In November, Plano averages a high of 67°F and a low of 46°F. It gets 3.0 in of precipitation over about 7 rainy days. The sun is out about 58% of daylight hours. The November record high is 90°F (2017) and the record low is 21°F (2019). November is one of the most comfortable months to visit.

Plano weather in December

In December, Plano averages a high of 57°F and a low of 37°F. It gets 3.4 in of precipitation over about 8 rainy days. The sun is out about 52% of daylight hours. The December record high is 84°F (2025) and the record low is 9°F (2022).

Sunshine, humidity and wind in Plano

October is the sunniest month in Plano, with sunshine about 68% of daylight hours. May is the cloudiest, at 38%. Over the year the sun shines about 54% of daylight hours. Plano is sunnier than 70% of the US.

Humidity peaks in May at 69% and is lowest in August at 54%.

Plano has about 85 days a year above 90°F. Plano is hotter than 87% of the US.

See where Plano ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

First and last freeze in Plano

The first fall freeze in Plano typically comes around November 24, and the last spring freeze around March 4. That leaves a frost-free growing season of about 265 days.

Plano weather records

The hottest temperature on record at the Plano station is 112°F, on June 26, 1980. The coldest is 0°F, on February 17, 2021.

The wettest day on record brought 5.4 in of rain, on May 16, 1989.

28 all-time records have been set at the station since 1970.

The best time to visit Plano

The most comfortable time to visit is typically March to April and November, when daytime highs sit near 71°F.

Winter (December–February) is mild, with average highs around 58°F and lows near 37°F. Snow is possible.

Spring (March–May) is warm, with average highs around 76°F and lows near 56°F.

Summer (June–August) is hot, with average highs around 94°F and lows near 74°F.

Autumn (September–November) is warm, with average highs around 77°F and lows near 57°F.

Plano climate questions

How much rain does Plano get?

Plano gets 41.9 in of precipitation in an average year, over about 87 rainy days.

What is the wettest month in Plano?

October is the wettest month in Plano, with 5.3 in. July is the driest, with 2.2 in.

How many rainy days does Plano have a year?

Plano has about 87 days with measurable rain in an average year. May has the most, about 9.

What is the hottest month in Plano?

July is the warmest month in Plano, with an average high of 95°F.

What is the coldest month in Plano?

January is the coldest month in Plano, with an average low of 35°F.

What is the record high temperature in Plano?

The record high at the Plano station is 112°F, set on June 26, 1980. The record low is 0°F, on February 17, 2021.

What is the sunniest month in Plano?

October is the sunniest month in Plano, with sunshine about 68% of daylight hours. May is the cloudiest.

When is the first frost in Plano?

The first fall freeze in Plano typically comes around November 24. The last spring freeze is around March 4.

What is the best time to visit Plano?

The most comfortable time to visit is typically March to April and November, when daytime highs sit near 71°F.