West Lafayette weather in October: West Lafayette, Indiana: normal highs, lows, rain and records for October
West Lafayette in October has a normal high of 65°F and a normal low of 41°F, a daily mean of 53°F, falling from 72°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 10 days in a normal October, 3.03 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 5°C, 77 mm of precipitation in October.
- NOAA stationWest Lafayette (6 mi NW)
- Station IDUSC00129430
- Location40.48°N 86.99°W
- Elevation708 ft (216 m)
- From the center4 miles
- Population46,338
- Jan 32° 16°
- Feb 37° 20°
- Mar 48° 29°
- Apr 61° 39°
- May 72° 51°
- Jun 81° 60°
- Jul 83° 63°
- Aug 82° 60°
- Sep 77° 52°
- Oct 65° 41°
- Nov 50° 32°
- Dec 37° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is West Lafayette in October?
The normal high is 65°F and the normal low 41°F, for a daily mean of 53.0°F. October is 11.6°F cooler than September and 12.5°F warmer than November. October is the 6th warmest month of the year in West Lafayette and the 7th wettest. Across the month the normal high falls 15°F, from 72°F on October 1 to 57°F on October 31. From one year to the next October's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 51°F and 55°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 72°F | 46°F | 29% | 18% |
| October 8 | 68°F | 44°F | 30% | 19% |
| October 15 | 65°F | 42°F | 32% | 19% |
| October 22 | 62°F | 40°F | 33% | 19% |
| October 31 | 57°F | 37°F | 33% | 20% |
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 | 72°F | 46°F | 29% | 18% | 11 h 50 min |
| October 2 | 71°F | 46°F | 29% | 18% | 11 h 50 min |
| October 3 | 71°F | 46°F | 29% | 18% | 11 h 40 min |
| October 4 | 70°F | 45°F | 30% | 18% | 11 h 40 min |
| October 5 | 70°F | 45°F | 30% | 19% | 11 h 40 min |
| October 6 | 69°F | 45°F | 30% | 19% | 11 h 40 min |
| October 7 | 69°F | 44°F | 30% | 19% | 11 h 30 min |
| October 8 | 68°F | 44°F | 30% | 19% | 11 h 30 min |
| October 9 | 68°F | 44°F | 30% | 19% | 11 h 30 min |
| October 10 | 68°F | 43°F | 31% | 19% | 11 h 30 min |
| October 11 | 67°F | 43°F | 31% | 19% | 11 h 20 min |
| October 12 | 67°F | 43°F | 31% | 19% | 11 h 20 min |
| October 13 | 66°F | 42°F | 31% | 19% | 11 h 20 min |
| October 14 | 66°F | 42°F | 32% | 19% | 11 h 10 min |
| October 15 | 65°F | 42°F | 32% | 19% | 11 h 10 min |
| October 16 | 65°F | 41°F | 32% | 19% | 11 h 10 min |
| October 17 | 64°F | 41°F | 32% | 19% | 11 h 10 min |
| October 18 | 64°F | 41°F | 32% | 19% | 11 h |
| October 19 | 63°F | 40°F | 32% | 19% | 11 h |
| October 20 | 63°F | 40°F | 32% | 19% | 11 h |
| October 21 | 62°F | 40°F | 32% | 19% | 11 h |
| October 22 | 62°F | 40°F | 33% | 19% | 10 h 50 min |
| October 23 | 61°F | 39°F | 33% | 19% | 10 h 50 min |
| October 24 | 61°F | 39°F | 33% | 19% | 10 h 50 min |
| October 25 | 60°F | 39°F | 33% | 19% | 10 h 50 min |
| October 26 | 60°F | 38°F | 33% | 19% | 10 h 40 min |
| October 27 | 59°F | 38°F | 33% | 20% | 10 h 40 min |
| October 28 | 59°F | 38°F | 33% | 20% | 10 h 40 min |
| October 29 | 58°F | 37°F | 33% | 20% | 10 h 40 min |
| October 30 | 58°F | 37°F | 33% | 20% | 10 h 30 min |
| October 31 | 57°F | 37°F | 33% | 20% | 10 h 30 min |
- Normal high
- 65°FOctober average
- Normal low
- 41°FOctober average
- Precipitation
- 3.03 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 5
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 4
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00129430; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in West Lafayette in October?
On a given October day the chance of 0.01 inch or more is 31% on average, highest around October 28 (33%). In all, 3.03 in falls on 10 days of a normal October, 1 of them with an inch or more.
In a normal October in West Lafayette, 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00129430.
What are the records for October in West Lafayette?
The warmest October temperature on this station's record (since 1901) is 93°F, on October 4, 2025; the coldest is 18°F, on October 30, 1925. The wettest October brought 8.89 in (2001); the snowiest, 6.0 inches (1989).
The October mean against the 1991-2020 normal of 53.0°F: 2021 59.3°F (+6.3), 2022 51.5°F (−1.5), 2025 58.7°F (+5.7). 2 of 3 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.3°F | +6.3°F | 8.35 in |
| 2022 | 51.5°F | −1.5°F | 2.22 in |
| 2025 | 58.7°F | +5.7°F | 1.57 in |
Source: records: ACIS, station USC00129430; recent months: ACIS, station USC00129430. Records and recent months use complete months only.
How does October in West Lafayette compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, October normal highs run from 61°F in Angola to 71°F in St. Meinrad; West Lafayette's is 65°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- West Lafayette in September77°F by day, 52°F at night
- West Lafayette in November50°F by day, 32°F at night
- West Lafayette through the yearEvery month, frost dates, records and recent years
- Indiana in OctoberThe statewide normal and the warmest and coolest places
- St. Meinrad: Indiana's warmest Octobernormal high 71°F