West Lafayette weather in July: West Lafayette, Indiana: normal highs, lows, rain and records for July
West Lafayette in July has a normal high of 83°F and a normal low of 63°F, a daily mean of 73°F, holding near 83°F all month. Measurable precipitation falls on 10 days in a normal July, 4.24 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 17°C, 108 mm of precipitation in July.
- 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 July?
The normal high is 83°F and the normal low 63°F, for a daily mean of 72.8°F. July is 2.2°F warmer than June and 1.9°F warmer than August. July is the warmest month of the year in West Lafayette and the 3rd wettest. Across the month the normal high falls 1°F, from 83°F on July 1 to 82°F on July 31. From one year to the next July's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Julys in three average between 70°F and 76°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 83°F | 63°F | 36% | 24% |
| July 8 | 83°F | 63°F | 35% | 23% |
| July 15 | 83°F | 63°F | 34% | 22% |
| July 22 | 83°F | 62°F | 33% | 21% |
| July 31 | 82°F | 62°F | 31% | 20% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 5, coldest night July 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 83°F | 63°F | 36% | 24% | 15 h |
| July 2 | 83°F | 63°F | 36% | 24% | 15 h |
| July 3 | 83°F | 63°F | 36% | 24% | 15 h |
| July 4 | 83°F | 63°F | 36% | 24% | 15 h |
| July 5 | 83°F | 63°F | 35% | 24% | 15 h |
| July 6 | 83°F | 63°F | 35% | 24% | 15 h |
| July 7 | 83°F | 63°F | 35% | 23% | 15 h |
| July 8 | 83°F | 63°F | 35% | 23% | 15 h |
| July 9 | 83°F | 63°F | 35% | 23% | 15 h |
| July 10 | 83°F | 63°F | 35% | 23% | 14 h 50 min |
| July 11 | 83°F | 63°F | 34% | 23% | 14 h 50 min |
| July 12 | 83°F | 63°F | 34% | 23% | 14 h 50 min |
| July 13 | 83°F | 63°F | 34% | 23% | 14 h 50 min |
| July 14 | 83°F | 63°F | 34% | 23% | 14 h 50 min |
| July 15 | 83°F | 63°F | 34% | 22% | 14 h 50 min |
| July 16 | 83°F | 63°F | 34% | 22% | 14 h 50 min |
| July 17 | 83°F | 63°F | 33% | 22% | 14 h 50 min |
| July 18 | 83°F | 63°F | 33% | 22% | 14 h 40 min |
| July 19 | 83°F | 62°F | 33% | 22% | 14 h 40 min |
| July 20 | 83°F | 62°F | 33% | 22% | 14 h 40 min |
| July 21 | 83°F | 62°F | 33% | 22% | 14 h 40 min |
| July 22 | 83°F | 62°F | 33% | 21% | 14 h 40 min |
| July 23 | 83°F | 62°F | 32% | 21% | 14 h 40 min |
| July 24 | 83°F | 62°F | 32% | 21% | 14 h 30 min |
| July 25 | 83°F | 62°F | 32% | 21% | 14 h 30 min |
| July 26 | 83°F | 62°F | 32% | 21% | 14 h 30 min |
| July 27 | 83°F | 62°F | 32% | 21% | 14 h 30 min |
| July 28 | 83°F | 62°F | 32% | 20% | 14 h 30 min |
| July 29 | 82°F | 62°F | 32% | 20% | 14 h 30 min |
| July 30 | 82°F | 62°F | 31% | 20% | 14 h 20 min |
| July 31 | 82°F | 62°F | 31% | 20% | 14 h 20 min |
- Normal high
- 83°FJuly average
- Normal low
- 63°FJuly average
- Precipitation
- 4.24 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 5
- Daylight
- 15 h to 14 h 20 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 24
- Sunshine
- 81%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 July?
On a given July day the chance of 0.01 inch or more is 34% on average, highest around July 1 (36%). In all, 4.24 in falls on 10 days of a normal July, 1 of them with an inch or more.
In a normal July in West Lafayette, 5 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00129430.
What are the records for July in West Lafayette?
The warmest July temperature on this station's record (since 1901) is 111°F, on July 14, 1936; the coldest is 42°F, on July 6, 1972. The wettest July brought 11.11 in (1992).
The July mean against the 1991-2020 normal of 72.8°F: 2021 73.3°F (+0.5), 2022 74.3°F (+1.5), 2023 76.8°F (+4.0), 2025 79.6°F (+6.8). 4 of 4 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.3°F | +0.5°F | 4.27 in |
| 2022 | 74.3°F | +1.5°F | 2.17 in |
| 2023 | 76.8°F | +4.0°F | 6.13 in |
| 2025 | 79.6°F | +6.8°F | 3.90 in |
Source: records: ACIS, station USC00129430; recent months: ACIS, station USC00129430. Records and recent months use complete months only.
How does July in West Lafayette compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, July normal highs run from 82°F in Angola to 89°F in Vincennes; West Lafayette's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.