| Settlement Type: | City |
| Official Name: | Las Lomitas |
| Pushpin Map: | Argentina |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type2: | Department |
| Subdivision Name2: | Patiño Department |
| Leader Title: | Intendant |
| Leader Name: | Francisco Gaetan (PJ) |
| Established Title: | Established |
| Established Date: | 20 October 1915 |
| Unit Pref: | Metric |
| Population As Of: | 2010 census |
| Population Total: | 12,399 |
| Coordinates: | -24.7063°N -60.5937°W |
| Website: | Official Website |
Las Lomitas is a city in northern Argentina. It is located in the Patiño Department in the center of Formosa Province.[1] It has a population of 12,399 inhabitants as of the . This represented a 20% increase in the population compared to the which only had 10,354 inhabitants.[1]
It is served by Alférez Armando Rodríguez Airport.
Las Lomitas has a humid subtropical climate (Köppen climate classification Cwa), similar to other areas in the Chaco region.[2] It is the warmest city in Argentina, with an annual mean temperature of 22.8C.[3] Winters are characterized by mild to warm temperatures during the day and cool nights and are dry.[4] In the coldest month, June, the average high is 23.1C while the average low is 11.2C. Temperatures can occasionally fall below freezing during cold waves although during heat waves, temperatures can reach above 39C.[4] In an average winter, Las Lomitas receives 8.5 days of frost per year while the first and last dates of frost are 28 June and 29 July respectively.[5] [6] Spring and fall are transition seasons and are rather short featuring hot daytime temperatures and mild nighttime temperatures. Frosts are rare in these seasons and temperatures may exceed 40C. Summers are hot, long and very humid, owing to most of the precipitation occurring during this season. In the hottest month, January, the average high is 34.8C while the average low is 21.7C. During the most extreme heat waves, the temperature can reach above 45C.[6] The average relative humidity is 67%, with the late summer and fall months being more humid than the winter months. On average, Las Lomitas receives 862.5mm of precipitation per year with 86 days with measureable precipitation with the summer months being wetter than the winter months, where most of the precipitation falls in the form of thunderstorms.[7] Las Lomitas receives approximately 2,717.0 hours of bright sunshine per year or 60% of possible sunshine per year, ranging from a low of 51% in June (only 162.0 hours of sunshine per month) to a high of 68% in February. The highest recorded temperature was 46C on November 8, 2023,[8] while the lowest recorded temperature was -5.9C on July 19, 1975.