Waco climate
Waco (Texas, United States) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 20 °C67 °F, and about 946 mm37 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Waco climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1458 | 236 | 847 | 662.6 | 10 |
| Feb | 1662 | 439 | 1051 | 642.5 | 6 |
| Mar | 2170 | 948 | 1559 | 903.5 | 2 |
| Apr | 2578 | 1355 | 1967 | 823.2 | 0 |
| May | 2985 | 1864 | 2474 | 1134.5 | 0 |
| Jun | 3392 | 2272 | 2882 | 943.7 | 0 |
| Jul | 3596 | 2475 | 3085 | 532.1 | 0 |
| Aug | 3697 | 2476 | 3086 | 652.6 | 0 |
| Sep | 3290 | 2069 | 2679 | 783.1 | 0 |
| Oct | 2780 | 1457 | 2069 | 1124.4 | 0 |
| Nov | 2069 | 847 | 1458 | 642.5 | 2 |
| Dec | 1560 | 338 | 949 | 652.6 | 7 |
| Year | 3697 | 236 | 2067 | 94637 | 26 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 74% | 51% | 3.0 | 10:18 |
| Feb | 76% | 57% | 3.5 | 11:01 |
| Mar | 75% | 56% | 4.5 | 11:54 |
| Apr | 73% | 54% | 5.5 | 12:55 |
| May | 73% | 57% | 5.9 | 13:45 |
| Jun | 68% | 42% | 6.8 | 14:12 |
| Jul | 63% | 40% | 6.8 | 14:01 |
| Aug | 59% | 38% | 6.3 | 13:17 |
| Sep | 65% | 41% | 5.2 | 12:19 |
| Oct | 68% | 40% | 4.2 | 11:20 |
| Nov | 72% | 46% | 3.2 | 10:30 |
| Dec | 73% | 52% | 2.7 | 10:06 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Waco is like
The warmest month is August, with an average high of 36 °C97 °F and a low of 24 °C76 °F. The coldest is January, when highs average 14 °C58 °F and lows 2 °C36 °F. Seasons are strongly marked: the warmest month is on average 22.1 °C39.7 °F warmer than the coldest.
Annual precipitation is moderate at about 946 mm37 in. The wettest three-month stretch is April–June, which brings 31% of the annual total. The wettest month is May (113 mm4.5 in), the driest is July (53 mm2.1 in).
Relative humidity ranges from 59% in August to 76% in February. The clearest skies (lowest average cloud amount, 38%) are typical of August. Average wind speed near the ground ranges from 8 km/h (5 mph) in September to 12 km/h (7 mph) in April. Daylight lasts from about 10.1 hours in December to 14.2 hours in June.
Best time to visit Waco
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and November: average highs of 20 °C69 °F to 25 °C78 °F with 64 mm2.5 in to 90 mm3.5 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 36 °C97 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Waco
- Winter (December–February) — highs 1458 to 16 °C62 °F, lows 236 to 4 °C39 °F, about 65 mm2.6 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2170 to 29 °C85 °F, lows 948 to 18 °C64 °F, about 95 mm3.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Summer (June–August) — highs 3392 to 36 °C97 °F, lows 2272 to 24 °C76 °F, about 71 mm2.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2069 to 32 °C90 °F, lows 847 to 20 °C69 °F, about 85 mm3.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Waco compares
Compared with Killeen, about 73 km to the southwest, Waco has practically the same average temperature and receives 14% more precipitation (946 mm37 in vs 831 mm33 in).
Of the 222 places in the United States covered by World Climates, Waco is the 42nd warmest by annual mean temperature and the 119th wettest by annual precipitation. See all of them on the United States climate page.
Places in other countries with the most similar temperature and rainfall pattern: Yongzhou (China, Cfa), Leiyang (China, Cfa) and Hongjiang (China, Cfa).
Nearby places
- Killeen 73 km · 20 °C67 °F · 831 mm33 in
- College Station 128 km · 20 °C68 °F · 1,069 mm42 in
- Fort Worth 132 km · 19 °C66 °F · 869 mm34 in
- Arlington 132 km · 19 °C66 °F · 935 mm37 in
- Grand Prairie 134 km · 19 °C66 °F · 935 mm37 in
- Dallas 141 km · 19 °C66 °F · 922 mm36 in
- Austin 154 km · 20 °C69 °F · 840 mm33 in
- Plano 169 km · 18 °C65 °F · 922 mm36 in
Frequently asked questions
What is the warmest month in Waco?
August is the warmest month in Waco, with an average high of 36 °C (97 °F) and an average low of 24 °C (76 °F).
What is the coldest month in Waco?
January is the coldest month, with an average high of 14 °C (58 °F) and an average low of 2 °C (36 °F).
When does it rain the most in Waco?
May is the wettest month with about 113 mm (4.5 in) of precipitation; July is the driest with about 53 mm (2.1 in).
What is the best time to visit Waco?
Judging by long-term averages, the most comfortable months are March and April and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.