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Weather & Climate in Primero de Mayo, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Primero de Mayo has a warm climate with an average annual temperature of 77°F (25°C). Winters average 65°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 264 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 39.9 inches. The city sits at an elevation of 282 feet.
Temperature
65°F Jan (18°C)
84°F Jul (29°C)
| Annual Average | 76.8°F |
| 42% above US avg | |
| January Average | 65°F (18°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 264 days/yr |
Geography
| Elevation | 282 ft (86 m) |
| Area | 414.2 sq mi (1,072.7 km²) |
| Population Density | 6/sq mi |
| Coordinates | 22.9624°N, 98.9537°W |
| Timezone | America/Monterrey |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| May 16, 2023 | 15 km NNW of Lázaro Cárdenas, Mexico | M5.0 | 120 km | 10 km |
| Jun 5, 2023 | 11 km WNW of Lázaro Cárdenas, Mexico | M4.6 | 123 km | 10 km |
| Jan 15, 2007 | San Luis Potosi-Queretaro-Guanajuato border region, Mexico | M4.3 | 141 km | 14 km |
| Jul 21, 2011 | 1 km SW of Tocoy, Mexico | M4.0 | 148 km | 12 km |
| Jan 25, 2008 | 12 km ESE of Rayón, Mexico | M4.0 | 142 km | 5 km |
| Aug 23, 1993 | 6 km WNW of Maitinez, Mexico | M4.0 | 74 km | 33 km |
| Jun 25, 2013 | 22 km E of Doctor Arroyo, Mexico | M4.0 | 133 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
9 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2013 | Ingrid | Category 1 | 81 mph | 252 km |
| 2010 | Alex | Category 2 | 109 mph | 93 km |
| 2005 | Emily | Category 3 | 127 mph | 228 km |
| 2003 | Erika | Category 1 | 75 mph | 284 km |
| 2000 | Keith | Category 1 | 92 mph | 115 km |
| 1996 | Dolly | Category 1 | 81 mph | 199 km |
| 1993 | Gert | Category 2 | 98 mph | 218 km |
| 1990 | Diana | Category 2 | 98 mph | 280 km |
| 1988 | Gilbert | Category 4 | 132 mph | 177 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 65°F (18°C) | 0.8 in | Coldest |
| February | 69°F (20°C) | 0.5 in | Driest |
| March | 75°F (24°C) | 0.7 in | |
| April | 80°F (27°C) | 1.5 in | |
| May | 84°F (29°C) | 3.4 in | |
| June | 85°F (29°C) | 7.7 in | Warmest |
| July | 84°F (29°C) | 8.2 in | Wettest |
| August | 84°F (29°C) | 5.8 in | |
| September | 82°F (28°C) | 6.4 in | |
| October | 77°F (25°C) | 3.2 in | |
| November | 72°F (22°C) | 0.9 in | |
| December | 66°F (19°C) | 0.8 in |
Primero de Mayo has a seasonal temperature swing of 20°F / from 65°F in January to 85°F in June. Total annual precipitation is 39.9 inches, with July being the wettest month (8.2") and February the driest (0.5").