Climate Insights for Houston

The climate in Houston is warm and mild. The average annual temperature is 22°C and approximately 1,457 mm of precipitation falls per year. Houston receives a notable amount of rainfall throughout the year, including during its driest month. Houston is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 8°C.The climate in Houston is warm and mild. The average annual temperature is 71°F and approximately 57.4 in of precipitation falls per year. Houston receives a notable amount of rainfall throughout the year, including during its driest month. Houston is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 46°F.

Temperatures in Houston vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 8°C and an average of 12°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.Temperatures in Houston vary considerably across the year, with a 46°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 92°F and the mean temperature sits around 84°F. January is the coolest month, with minimum temperatures around 46°F and an average of 54°F. On average, daily temperatures fluctuate by about 17°F between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 9°F shift in average temperatures.

Houston is a fairly wet location, receiving approximately 1,457 mm of precipitation annually, which averages out to around 121 mm per month. The wettest month is May, averaging 173 mm of rainfall. August and September also tend to see above-average precipitation. The driest month is February, with just 74 mm. That's 99 mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Houston is a fairly wet location, receiving approximately 57.4 in of precipitation annually, which averages out to around 4.8 in per month. The wettest month is May, averaging 6.8 in of rainfall. August and September also tend to see above-average precipitation. The driest month is February, with just 2.9 in. That's 3.9 in less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Houston is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 13km/h in spring, 9km/h in summer, 10km/h in autumn.Houston is mildly breezy, with an average annual wind speed of 7mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8mph in winter, 8mph in spring, 6mph in summer, 6mph in autumn.

The best time to visit Houston is during March, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 92 mm per month. By contrast, August can be uncomfortably hot with highs reaching 33°C, while January is the coldest period with lows dropping to 8°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Houston is during March, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 67°F with modest rainfall averaging 3.6 in per month. By contrast, August can be uncomfortably hot with highs reaching 92°F, while January is the coldest period with lows dropping to 46°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Houston based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Houston based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.