Río Grande, Mexico Climate by Month
Río Grande, Zacatecas, Mexico
Hot summers and cool winters, with most rain from June to September.
The climate in Río Grande is one of hot summers and cool winters, with most rain from June to September. May is the warmest month, with highs around 89°F (32°C); January is the coolest at 71°F (22°C), and nights dip to 37°F (3°C). Of the 15 in (380 mm) of rain in a typical year, 76% falls from June to September. March, April and December are almost completely dry.
- Warmest month
- 89°F(32°C)
- Average high, May
- Coldest nights
- 37°F(3°C)
- Average low, January
- Rain per year
- 15 in(380 mm)
- Wettest: September
- Humidity
- 48%
- Sunniest: May
Best and worst months in Río Grande
Best for weatherFebruary and November are the best time for weather in Río Grande: highs near 75°F (24°C) and almost no rain.
Least pleasantJune and July are the least pleasant; June is the hottest, with highs of 89°F (32°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in February.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Río Grande weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 71°F(22°C) | 37°F(3°C) | 0.4 in(10 mm) | 49% | 3.7 |
| FebFebruaryBest | 75°F(24°C) | 40°F(5°C) | 0.4 in(10 mm) | 43% | 4.4 |
| MarMarch | 80°F(27°C) | 43°F(6°C) | 0.2 in(5 mm) | 37% | 5.2 |
| AprApril | 86°F(30°C) | 49°F(9°C) | 0.1 in(3 mm) | 31% | 5.6 |
| MayMay | 89°F(32°C) | 54°F(12°C) | 0.4 in(10 mm) | 38% | 6.0 |
| JunJune | 89°F(32°C) | 58°F(14°C) | 2.1 in(53 mm) | 46% | 5.9 |
| JulJuly | 85°F(30°C) | 58°F(15°C) | 3.0 in(75 mm) | 56% | 5.7 |
| AugAugust | 85°F(29°C) | 58°F(14°C) | 2.9 in(73 mm) | 57% | 5.7 |
| SepSeptember | 81°F(27°C) | 55°F(13°C) | 3.5 in(89 mm) | 64% | 4.7 |
| OctOctober | 80°F(27°C) | 49°F(9°C) | 1.2 in(30 mm) | 58% | 4.6 |
| NovNovemberBest | 75°F(24°C) | 41°F(5°C) | 0.6 in(14 mm) | 54% | 4.0 |
| DecDecember | 72°F(22°C) | 37°F(3°C) | 0.3 in(8 mm) | 48% | 3.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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