Waco, TX weather in May
Waco is warm and often humid in May, with some rain: highs average 85°F and nights drop to about 63°F. There are about 8 days with rain.
- Normal high
- 85°F
- Normal low
- 63°F
- Wet days
- 8
- 4.4 in total
- Muggy days
- 16
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 81°F | 90°F |
| Normal low | 59°F | 68°F |
| Chance of a wet day | 25% | 25% |
| Sunrise / sunset | 6:43 am / 8:08 pm | 6:24 am / 8:27 pm |
| Daylight | 13.4 h | 14.1 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 May day
- 6 am66°Fdew point 63°F
- 9 am74°Fdew point 64°F
- Noon81°Fdew point 64°F
- 3 pm84°Fdew point 63°F
- 6 pm81°Fdew point 63°F
- 9 pm73°Fdew point 64°F
NOAA hourly normals (local standard time) from Waco Rgnl Airport (7 mi away); average wind 10 mph; clear or few clouds in 59% of daytime hours, mostly cloudy or overcast in 31%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Hot dayshigh 90°F or more9 of 31
- Muggy daysdaily mean dew point 65°F or more16 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 4.4 in; a dry May brings about 2.8 in and a wet one about 5.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.
How May varies from year to year
- Warmest May, 1991-20201998: average high 91°F
- Coolest May1997: average high 81°F
- Wettest May2007: 14.0 in
- Driest May1998: 0.6 in
- Highest reading100°F (May 28, 2011)
- Lowest reading34°F (May 4, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 78°F | 85°F | 93°F |
| Normal low | 55°F | 63°F | 71°F |
| Wet days | 7 | 8 | 7 |
| Comfortable days | 12 | 3 | 0 |
| Daylight | 13.0 h | 13.8 h | 14.2 h |
Highs change by +7°F from April and +8°F into June.
How Waco ranks in May
- Normal high61st warmest of 378 cities; 20th of 38 in Texas
- Wet days152nd driest of 378
- Comfortable days284th most of 339
What to pack for Waco in May
- Light, breathable clothing – highs near 85°F and about 16 muggy days
- A rain jacket or umbrella – rain on about 8 days
Heating and cooling
May has 9 heating degree days and 297 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is Waco in May?
The normal high is 85°F and the normal low is 63°F. From 1991 to 2020 the hottest May reading was 100°F (most recently on May 28, 2011).
Does it rain a lot in Waco in May?
About 8 days in May have at least 0.01 in of precipitation, and the normal total is 4.4 in. The wettest May in 1991-2020 was in 2007 (14.0 in); the driest was in 1998 (0.6 in).
Is May a good time to visit Waco?
May ranks 8th of 12 months on our comfort score for Waco (51 out of 100). It has about 3 comfortable days and about 9 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Waco Rgnl Airport (USW00013959), 6.8 mi NW of the city center, 500 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Waco Regional Airport (722560-13959), 6.7 mi NW of the city center, 498 ft . Hourly observations, 1991-2020.