Plano weather by month
Warmest month
August
96°F (36°C) average high
Coolest month
January
37°F (3°C) average low
Wettest month
May
5.6 in (141 mm) of rain
Driest month
January
2 in (52 mm) of rain
Average temperature and rainfall in Plano by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 58°F | 37°F | 9°F / 78°F | 2 in | 65% | 8 mph |
| February | 63°F | 41°F | 5°F / 83°F | 2.1 in | 67% | 9 mph |
| March | 72°F | 51°F | 21°F / 89°F | 2.9 in | 60% | 10 mph |
| April | 75°F | 55°F | 36°F / 92°F | 4 in | 65% | 10 mph |
| May | 84°F | 65°F | 44°F / 95°F | 5.6 in | 67% | 9 mph |
| June | 91°F | 74°F | 64°F / 102°F | 3.1 in | 67% | 9 mph |
| July | 95°F | 76°F | 65°F / 102°F | 2 in | 61% | 8 mph |
| August | 96°F | 77°F | 71°F / 107°F | 2 in | 58% | 7 mph |
| September | 91°F | 71°F | 57°F / 102°F | 2.6 in | 64% | 7 mph |
| October | 81°F | 61°F | 42°F / 94°F | 4.1 in | 67% | 9 mph |
| November | 69°F | 50°F | 26°F / 90°F | 2.6 in | 68% | 8 mph |
| December | 62°F | 44°F | 25°F / 80°F | 4.1 in | 67% | 8 mph |
Frost and snow-likely months in Plano
No month in Plano averages a night of 36°F (2°C) or below. The coldest month is January with an average low of 37°F (3°C) and a record low of 9°F (-13°C), so frost is rare and snow is very unlikely.
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Plano
The most comfortable time to visit Plano is generally March to April and November, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around May, totalling about 37.2 in (944 mm) a year.
Travellers who prefer heat should aim for August, when highs average 96°F (36°C). May is the month to avoid if rain would spoil your plans — it averages 5.6 in (141 mm), roughly 3× the rainfall of the driest month (January).
Plano climate: your questions
Does it snow in Plano?
No: the coldest month in Plano is January with an average low of 37°F (3°C) and a record low of 9°F (-13°C), so snow is very unlikely. What is falling now: Plano weather today.
When is it going to snow in Plano this month?
Plano's winter months average lows of 44°F (7°C) in December, 37°F (3°C) in January and 41°F (5°C) in February, with about 8.3 in (210 mm) of precipitation across the three; 0 of them sit at or below 32°F (0°C), so snow is unlikely. The records hold no snowfall totals. The next 15 days: Plano 10-day forecast.
When is the best time to visit Plano?
March to April and November are the most comfortable months in Plano, with highs near 72°F (22°C). August is the warmest month, averaging 96°F (36°C) by day; May is the wettest, with 5.6 in (141 mm); and January is the coolest, with lows near 37°F (3°C). What it is doing today: Plano weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Plano forecast for what is happening now.
Nearest cities: Monthly climate
- Richardson5.9 mi
- Allen5.9 mi
- Frisco8.4 mi
- Carrollton9.7 mi
- McKinney11 mi
- Garland12 mi
Weather across United States right now
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