Las Lomitas

Climate

Las Lomitas has a humid subtropical climate (Köppen climate classification Cwa), similar to other areas in the Chaco region. It is the warmest city in Argentina, with an annual mean temperature of 22.8 °C (73.0 °F). Winters are characterized with mild to warm temperatures during the day and cool nights and are dry. In the coldest month, June, the average high is 23.1 °C (73.6 °F) while the average low is 11.2 °C (52.2 °F). Temperatures can occasionally fall below freezing during cold waves although during heat waves, temperatures can reach above 39 °C (102.2 °F). 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. 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 40 °C (104.0 °F). 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 34.8 °C (94.6 °F) while the average low is 21.7 °C (71.1 °F). During the most extreme heat waves, the temperature can reach above 45 °C (113.0 °F). 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 862.5 millimetres (34 in) of precipitation per year with 86 days with measureable precipitation with summer months being more wetter than the winter months, where most of the precipitation falls in the form of thunderstorms. 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 46.0 °C (114.8 °F) on December 28, 2002 while the lowest recorded temperature was −8.0 °C (17.6 °F) on July 19, 1975.