McKinney weather in October: McKinney, Texas: normal highs, lows, rain and records for October
McKinney in October has a normal high of 78°F and a normal low of 54°F, a daily mean of 66°F, falling from 84°F on the 1st to 72°F by the 31st. Measurable precipitation falls on 8 days in a normal October, 4.41 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 12°C, 112 mm of precipitation in October.
- NOAA stationMcKinney Municipal Airport
- Station IDUSW00053914
- Location33.18°N 96.59°W
- Elevation580 ft (177 m)
- Population227,526
- Jan 56° 34°
- Feb 60° 38°
- Mar 68° 46°
- Apr 75° 53°
- May 83° 62°
- Jun 91° 70°
- Jul 95° 74°
- Aug 96° 73°
- Sep 88° 66°
- Oct 78° 54°
- Nov 66° 44°
- Dec 57° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is McKinney in October?
The normal high is 78°F and the normal low 54°F, for a daily mean of 66.0°F. October is 10.9°F cooler than September and 11.1°F warmer than November. October is the 6th warmest month of the year in McKinney and the 2nd wettest. Across the month the normal high falls 12°F, from 84°F on October 1 to 72°F on October 31. From one year to the next October's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 64°F and 68°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 27%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 84°F | 60°F | 24% | 14% |
| October 8 | 81°F | 57°F | 25% | 15% |
| October 15 | 78°F | 55°F | 26% | 17% |
| October 22 | 76°F | 52°F | 27% | 17% |
| October 31 | 72°F | 49°F | 27% | 16% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 84°F | 60°F | 24% | 14% | 11 h 50 min |
| October 2 | 83°F | 60°F | 24% | 14% | 11 h 50 min |
| October 3 | 83°F | 59°F | 24% | 14% | 11 h 50 min |
| October 4 | 83°F | 59°F | 24% | 15% | 11 h 50 min |
| October 5 | 82°F | 58°F | 24% | 15% | 11 h 40 min |
| October 6 | 82°F | 58°F | 25% | 15% | 11 h 40 min |
| October 7 | 81°F | 58°F | 25% | 15% | 11 h 40 min |
| October 8 | 81°F | 57°F | 25% | 15% | 11 h 40 min |
| October 9 | 81°F | 57°F | 25% | 16% | 11 h 40 min |
| October 10 | 80°F | 56°F | 25% | 16% | 11 h 30 min |
| October 11 | 80°F | 56°F | 26% | 16% | 11 h 30 min |
| October 12 | 80°F | 56°F | 26% | 16% | 11 h 30 min |
| October 13 | 79°F | 55°F | 26% | 16% | 11 h 30 min |
| October 14 | 79°F | 55°F | 26% | 16% | 11 h 30 min |
| October 15 | 78°F | 55°F | 26% | 17% | 11 h 20 min |
| October 16 | 78°F | 54°F | 26% | 17% | 11 h 20 min |
| October 17 | 78°F | 54°F | 26% | 17% | 11 h 20 min |
| October 18 | 77°F | 53°F | 26% | 17% | 11 h 20 min |
| October 19 | 77°F | 53°F | 27% | 17% | 11 h 20 min |
| October 20 | 76°F | 53°F | 27% | 17% | 11 h 10 min |
| October 21 | 76°F | 52°F | 27% | 17% | 11 h 10 min |
| October 22 | 76°F | 52°F | 27% | 17% | 11 h 10 min |
| October 23 | 75°F | 52°F | 27% | 17% | 11 h 10 min |
| October 24 | 75°F | 51°F | 27% | 17% | 11 h 10 min |
| October 25 | 74°F | 51°F | 27% | 17% | 11 h 10 min |
| October 26 | 74°F | 51°F | 27% | 17% | 11 h |
| October 27 | 74°F | 50°F | 27% | 17% | 11 h |
| October 28 | 73°F | 50°F | 27% | 16% | 11 h |
| October 29 | 73°F | 49°F | 27% | 16% | 11 h |
| October 30 | 72°F | 49°F | 27% | 16% | 11 h |
| October 31 | 72°F | 49°F | 27% | 16% | 10 h 50 min |
- Normal high
- 78°FOctober average
- Normal low
- 54°FOctober average
- Precipitation
- 4.41 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 11 h 50 min to 10 h 50 minOctober 1 to October 31
- Days at 70°F or more
- 25
- Days at 80°F or more
- 15
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053914; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in McKinney in October?
On a given October day the chance of 0.01 inch or more is 26% on average, highest around October 23 (27%). In all, 4.41 in falls on 8 days of a normal October, 1 of them with an inch or more.
In a normal October in McKinney, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053914.
What are the records for October in McKinney?
The warmest October temperature on this station's record (since 1998) is 97°F, on October 6, 2019; the coldest is 28°F, on October 28, 2008. The wettest October brought 12.49 in (2009).
The October mean against the 1991-2020 normal of 66.0°F: 2021 69.9°F (+3.9), 2022 65.5°F (−0.5), 2023 66.5°F (+0.5), 2024 72.6°F (+6.6), 2025 70.1°F (+4.1). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.9°F | +3.9°F | 4.08 in |
| 2022 | 65.5°F | −0.5°F | 5.35 in |
| 2023 | 66.5°F | +0.5°F | 8.75 in |
| 2024 | 72.6°F | +6.6°F | 0.41 in |
| 2025 | 70.1°F | +4.1°F | 1.62 in |
Source: records: ACIS, station USW00053914; recent months: ACIS, station USW00053914. Records and recent months use complete months only.
How does October in McKinney compare across Texas?
Across the 321 places PlainClimate covers in Texas, October normal highs run from 71°F in Channing to 89°F in McAllen; McKinney's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.