Climate Insights for Bonham

The climate in Bonham is warm and mild. The average annual temperature is 19°C and approximately 1191mm of precipitation falls per year. Bonham receives a notable amount of rainfall throughout the year, including during its driest month. Bonham is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Agosto, Luglio, Giugno. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to 3°C.

Temperatures in Bonham vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is Agosto, when average highs reach 35°C and the mean temperature sits around 29°C. Gennaio is the coolest month, with minimum temperatures around 3°C and an average of 7°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Bonham is a moderately rainy area, receiving approximately 1191mm of precipitation annually, which averages out to around 99mm per month. The wettest month is May, averaging 176mm of rainfall. April and March also tend to see above-average precipitation. The driest month is July, with just 51mm. That's 125mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Bonham is mildly breezy, with an average annual wind speed of 17km/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 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/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 18km/h in winter, 20km/h in spring, 15km/h in summer, 16km/h in autumn.

It is currently winter in Bonham, which began on December 21, 2026. Bonham is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Agosto at around 35°C, while the coldest stretch bottoms out in Gennaio near 3°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

The table below shows monthly climate averages for Bonham 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.