Weather in Plano in September
In an average September, Plano sees a daily high around 88°F and a low around 70°F, based on 1980–2026 of local climate records.
| Average high | 88°F |
|---|---|
| Typical high range | 81°F to 95°F |
| Average low | 70°F |
| Typical low range | 61°F to 76°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
108°F
2000-09-04
Lowest
59°F
1984-09-29
Low
Highest
82°F
2023-09-06
Lowest
42°F
1984-09-30
Feels-like
Highest
138°F
2005-09-28
Lowest
37°F
1984-09-30
Humidity
Highest
23.5 g/m³
2010-09-09
Lowest
5.8 g/m³
1989-09-24
Wind
Highest
28 mph
2020-09-28
Lowest
4 mph
2005-09-22
Gust
Highest
46 mph
2008-09-03
Lowest
9 mph
1998-09-29
Precip
Wettest
11.08 in
2018
Driest
0.42 in
2021
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