Lafayette weather in October: Lafayette, Indiana: normal highs, lows, rain and records for October
Lafayette in October has a normal high of 65°F and a normal low of 43°F, a daily mean of 54°F, falling from 72°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 10 days in a normal October, 2.91 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 6°C, 74 mm of precipitation in October.
- NOAA stationLafayette Purdue University Airport
- Station IDUSW00014835
- Location40.41°N 86.94°W
- Elevation599 ft (183 m)
- Population71,757
- Jan 33° 18°
- Feb 38° 21°
- Mar 50° 30°
- Apr 62° 40°
- May 73° 51°
- Jun 81° 60°
- Jul 84° 63°
- Aug 83° 62°
- Sep 77° 54°
- Oct 65° 43°
- Nov 50° 33°
- Dec 38° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lafayette in October?
The normal high is 65°F and the normal low 43°F, for a daily mean of 53.7°F. October is 11.8°F cooler than September and 12.4°F warmer than November. October is the 6th warmest month of the year in Lafayette and the 6th 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 56°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 | 48°F | 30% | 16% |
| October 8 | 68°F | 46°F | 30% | 17% |
| October 15 | 65°F | 43°F | 31% | 17% |
| October 22 | 62°F | 41°F | 32% | 18% |
| October 31 | 57°F | 38°F | 33% | 18% |
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 | 48°F | 30% | 16% | 11 h 50 min |
| October 2 | 71°F | 48°F | 30% | 16% | 11 h 50 min |
| October 3 | 71°F | 47°F | 30% | 16% | 11 h 40 min |
| October 4 | 70°F | 47°F | 30% | 16% | 11 h 40 min |
| October 5 | 70°F | 47°F | 30% | 16% | 11 h 40 min |
| October 6 | 69°F | 46°F | 30% | 17% | 11 h 40 min |
| October 7 | 69°F | 46°F | 30% | 17% | 11 h 30 min |
| October 8 | 68°F | 46°F | 30% | 17% | 11 h 30 min |
| October 9 | 68°F | 45°F | 30% | 17% | 11 h 30 min |
| October 10 | 67°F | 45°F | 30% | 17% | 11 h 30 min |
| October 11 | 67°F | 45°F | 30% | 17% | 11 h 20 min |
| October 12 | 66°F | 44°F | 30% | 17% | 11 h 20 min |
| October 13 | 66°F | 44°F | 31% | 17% | 11 h 20 min |
| October 14 | 66°F | 44°F | 31% | 17% | 11 h 10 min |
| October 15 | 65°F | 43°F | 31% | 17% | 11 h 10 min |
| October 16 | 65°F | 43°F | 31% | 17% | 11 h 10 min |
| October 17 | 64°F | 43°F | 31% | 18% | 11 h 10 min |
| October 18 | 64°F | 42°F | 31% | 18% | 11 h |
| October 19 | 63°F | 42°F | 31% | 18% | 11 h |
| October 20 | 63°F | 42°F | 31% | 18% | 11 h |
| October 21 | 62°F | 41°F | 32% | 18% | 11 h |
| October 22 | 62°F | 41°F | 32% | 18% | 10 h 50 min |
| October 23 | 61°F | 41°F | 32% | 18% | 10 h 50 min |
| October 24 | 61°F | 40°F | 32% | 18% | 10 h 50 min |
| October 25 | 60°F | 40°F | 32% | 18% | 10 h 50 min |
| October 26 | 60°F | 40°F | 32% | 18% | 10 h 40 min |
| October 27 | 59°F | 39°F | 33% | 18% | 10 h 40 min |
| October 28 | 59°F | 39°F | 33% | 18% | 10 h 40 min |
| October 29 | 58°F | 39°F | 33% | 18% | 10 h 40 min |
| October 30 | 58°F | 38°F | 33% | 18% | 10 h 30 min |
| October 31 | 57°F | 38°F | 33% | 18% | 10 h 30 min |
- Normal high
- 65°FOctober average
- Normal low
- 43°FOctober average
- Precipitation
- 2.91 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 3
- 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 USW00014835; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lafayette in October?
On a given October day the chance of 0.01 inch or more is 31% on average, highest around October 31 (33%). In all, 2.91 in falls on 10 days of a normal October, 1 of them with an inch or more.
In a normal October in Lafayette, 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014835.
How humid and windy is Lafayette in October?
At 3 p.m. the normal temperature is 56°F with 53% relative humidity and a dew point of 39°F; at 6 a.m. it is 43°F with 81% humidity. The wind averages 8.2 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 43°F | 38°F | 81% | 6.6 mph | 58% |
| 9 a.m. | 46°F | 39°F | 78% | 7.8 mph | 55% |
| noon | 53°F | 40°F | 60% | 11.3 mph | 52% |
| 3 p.m. | 56°F | 39°F | 53% | 11.7 mph | 52% |
| 6 p.m. | 52°F | 39°F | 60% | 8.1 mph | 54% |
| 9 p.m. | 48°F | 39°F | 72% | 7.0 mph | 60% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014835. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for October in Lafayette?
The warmest October temperature on this station's record (since 1944) is 92°F, on October 2, 1983; the coldest is 19°F, on October 24, 1981. The wettest October brought 9.20 in (2021).
The October mean against the 1991-2020 normal of 53.7°F: 2021 58.9°F (+5.2), 2022 53.3°F (−0.4), 2023 55.7°F (+2.0), 2024 58.0°F (+4.3), 2025 57.8°F (+4.1). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 58.9°F | +5.2°F | 9.20 in |
| 2022 | 53.3°F | −0.4°F | 1.75 in |
| 2023 | 55.7°F | +2.0°F | 3.20 in |
| 2024 | 58.0°F | +4.3°F | 0.21 in |
| 2025 | 57.8°F | +4.1°F | 1.16 in |
Source: records: ACIS, station USW00014835; recent months: ACIS, station USW00014835. Records and recent months use complete months only.
How does October in 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; Lafayette's is 65°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.