Lafayette, LA weather in July
Expect hot, oppressively humid weather with frequent rain in Lafayette in July, with highs near 92°F and lows near 75°F. Rain falls on about 14 days. It is one of the warmest months in Lafayette. Plan outdoor time for mornings and evenings.
- Normal high
- 92°F
- Normal low
- 75°F
- Wet days
- 14
- 6.3 in total
- Muggy days
- 31
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 91°F | 92°F |
| Normal low | 75°F | 75°F |
| Chance of a wet day | 45% | 42% |
| Sunrise / sunset | 6:10 am / 8:13 pm | 6:26 am / 8:02 pm |
| Daylight | 14.1 h | 13.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical July day
- 6 am76°Fdew point 74°F
- 9 am84°Fdew point 75°F
- Noon88°Fdew point 73°F
- 3 pm88°Fdew point 73°F
- 6 pm85°Fdew point 73°F
- 9 pm80°Fdew point 74°F
NOAA hourly normals (local standard time) from Lafayette Rgnl Airport (2 mi away); average wind 5 mph; clear or few clouds in 55% of daytime hours, mostly cloudy or overcast in 26%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more23 of 31
- Muggy daysdaily mean dew point 65°F or more31 of 31
- Wet daysat least 0.01 in of rain or melted snow14 of 31
- Notable rainat least 0.10 in10 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 6.3 in; a dry July brings about 4.5 in and a wet one about 8.3 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How July varies from year to year
- Warmest July, 1991-20202015: average high 94°F
- Coolest July1994: average high 89°F
- Wettest July2012: 11.0 in
- Driest July2015: 2.0 in
- Highest reading101°F (July 30, 2015)
- Lowest reading67°F (July 25, 2019)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 90°F | 92°F | 92°F |
| Normal low | 73°F | 75°F | 75°F |
| Wet days | 12 | 14 | 12 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 14.1 h | 13.9 h | 13.2 h |
Highs change by +2°F from June and 0°F into August.
Nearby alternatives in July
- Drier: Galveston, TX178 mi · high 91°F · 8 wet days
How Lafayette ranks in July
- Normal high114th warmest of 378 cities; 4th of 5 in Louisiana
- Wet days352nd driest of 378
- Comfortable days294th most of 340
What to pack for Lafayette in July
- Light, breathable clothing – highs near 92°F and about 31 muggy days
- A rain jacket or umbrella – rain on about 14 days
Heating and cooling
July has 0 heating degree days and 567 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.
Questions
How hot is Lafayette in July?
The normal high is 92°F and the normal low is 75°F. From 1991 to 2020 the hottest July reading was 101°F (July 30, 2015).
Does it rain a lot in Lafayette in July?
About 14 days in July have at least 0.01 in of precipitation, and the normal total is 6.3 in. The wettest July in 1991-2020 was in 2012 (11.0 in); the driest was in 2015 (2.0 in).
Is July a good time to visit Lafayette?
July ranks 11th of 12 months on our comfort score for Lafayette (35 out of 100). It has almost no comfortable days and about 23 days at 90°F or hotter. The best months are March, April and November.
Where the numbers come from
- Temperature, rain, frost dates, humidity and wind by hour and cloud cover: Lafayette Rgnl Airport (USW00013976), 2.3 mi SE of the city center, 38 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Lafayette (USC00165021), 2.7 mi W of the city center, 25 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Lafayette Regional Airport (722405-13976), 2.5 mi SE of the city center, 35 ft . Hourly observations, 1991-2020.