Climate averages 1991–2020
Piedras Negras weather
in January.
A mild, fairly dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Piedras Negras: daytime highs average 19.0°C and nights cool to about 7.9°C. By daytime temperature it is the coolest month of the year.
Expect about 25 mm of rain on roughly 4 days, which makes January a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 32 min on an average January day.
The nearest other city in this atlas is Ciudad Acuña (81 km away). In January its highs average 18.2°C, 0.7°C cooler than Piedras Negras, with 22 mm of rain.
Among the 153 cities listed in Mexico, Piedras Negras ranks 134th of 153 for the warmest January highs and 107th of 153 for the driest January (rainfall, lowest first). The mean January high of those 153 cities is 22.4°C; Piedras Negras is 3.4°C cooler than that mean.
From January to February, average highs rise by 2.9°C to 21.9°C, and monthly rainfall rises from 25 mm to 27 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Piedras Negras climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 19.0°C7.9°C | 7.9°C | 25 | 4.3 | 10.511 h |
| February | 21.9°C10.2°C | 10.2°C | 27 | 4.5 | 11.211 h |
| March | 25.7°C13.9°C | 13.9°C | 43 | 5.6 | 12.012 h |
| April | 29.9°C17.8°C | 17.8°C | 48 | 6.1 | 12.813 h |
| May | 32.9°C21.8°C | 21.8°C | 74 | 8.3 | 13.614 h |
| June | 35.9°C25.0°C | 25.0°C | 46 | 6.1 | 13.914 h |
| July | 36.6°C25.8°C | 25.8°C | 50 | 5.9 | 13.814 h |
| August | 36.8°C26.4°C | 26.4°C | 46 | 4.6 | 13.213 h |
| September | 32.8°C23.2°C | 23.2°C | 79 | 8.3 | 12.412 h |
| October | 28.7°C18.5°C | 18.5°C | 60 | 6.5 | 11.511 h |
| November | 22.9°C12.9°C | 12.9°C | 36 | 4.8 | 10.711 h |
| December | 19.1°C8.5°C | 8.5°C | 27 | 4.5 | 10.410 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Ciudad Acuña in JanuaryMexico · 81 kmHigh 18.2°C · Low 7.1°C · 22 mm rain
- Nuevo Laredo in JanuaryMexico · 168 kmHigh 20.5°C · Low 10.2°C · 24 mm rain
- San Antonio in JanuaryUnited States · 213 kmHigh 16.9°C · Low 6.7°C · 57 mm rain
- Monclova in JanuaryMexico · 218 kmHigh 20.0°C · Low 8.2°C · 15 mm rain
- New Braunfels in JanuaryUnited States · 258 kmHigh 16.4°C · Low 6.6°C · 63 mm rain
- San Angelo in JanuaryUnited States · 307 kmHigh 15.1°C · Low 3.5°C · 27 mm rain
- Austin in JanuaryUnited States · 321 kmHigh 15.9°C · Low 5.9°C · 61 mm rain
- Corpus Christi in JanuaryUnited States · 322 kmHigh 18.9°C · Low 10.6°C · 48 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Piedras Negras) is explained once on the Piedras Negras year overview and on the Sources, method and limits page.