Plano, IL Weather & Climate Normals
What a normal year in Plano actually looks like
On the 30-year record NOAA keeps for Plano, IL, the comfort score comes out to 48/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Plano's weather actually swings
Average temperatures in Plano run from 23°F in Jan up to 73°F in Jul, a 50.5°F seasonal swing, one of the widest gaps in this dataset.
Plano, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 31°F | 15°F | 1.3in |
| Feb | 35°F | 18°F | 1.41in |
| Mar | 48°F | 28°F | 2.21in |
| Apr | 60°F | 37°F | 3.6in |
| May | 72°F | 49°F | 4.06in |
| Jun | 81°F | 59°F | 3.98in |
| Jul | 84°F | 62°F | 3.71in |
| Aug | 82°F | 60°F | 3.35in |
| Sep | 76°F | 52°F | 3.01in |
| Oct | 63°F | 41°F | 3.23in |
| Nov | 48°F | 29°F | 2.3in |
| Dec | 36°F | 21°F | 1.68in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Plano's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Plano actually gets
Plano averages 33.84in of precipitation a year across roughly 126 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Plano against the rest of the country
Out of 4876 cities scored here, Plano comes in at 2409; within IL alone it ranks 57 of 330. Population is about 12,677.
Checking the actual forecast
These figures come from Chicago Aurora Muni Ap, IL US, the NOAA station 6.8 miles from Plano, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station