This paper analyses how weather factors affect electricity consumption in different time ranges in the Bangkok metropolitan region of Thailand. To answer this question, we use every 30-min data from 2015 to 2017 to discover the relationship between the electricity consumption and seven weather factors including temperature, dew point, relative humidity, wind (quantity), pressure, rainfall and, cloud using Pearson correlation. While the majority of people tend to think that temperature is the factor that contributed to load the most, our statistical result shows that temperature only affects electricity consumption in the very short term (within one day). In the weekly and monthly range, the electricity load is mainly associated with dew point. Hence, in different time ranges, different weather and climate factors contribute to electricity load. It suggests that future research and practice to choose carefully the factors in terms of electricity consumption prediction in different time ranges.Index Terms-Dew point, electricity consumption, relative humidity, wind.