Grafton 2024 Climate Summary
The climate of Grafton reveals interesting patterns when examined month by month. From temperature swings to rainfall distribution, each season brings its own character.
Temperatures in Grafton range between 9.1°C in winter and 30.2°C in summer, a variation of 9.4°C across the year.
The wettest month is Nov (160mm), and the driest is Jul (33mm). This creates an annual total of 1018mm distributed across about 132 rain days.
Grafton runs 2.9°C warmer than the New South Wales average. The 1018mm annual rainfall aligns closely with regional patterns.
Understanding these patterns helps determine the best times to visit Grafton. Whether you prefer warm dry conditions or milder temperatures, Grafton's climate offers distinct seasonal advantages throughout the year.
Note on methodology: this page summarises 2024 observations only. Long-record climate trend analysis drawn from ACORN-SAT (1910 to present) is in development. For context on multi-decade change, see the BOM State of the Climate report.
Temperature Profile
Monthly maximum and minimum temperature ranges showing seasonal variation in Grafton's climate.
Climate Analysis
The temperature data for Grafton reveals clear seasonal patterns. The annual average maximum is 25.2°C, while the average minimum is 15.4°C. This 9.8°C range demonstrates the city's seasonal temperature variation.
Rainfall Pattern
Monthly rainfall distribution throughout Grafton showing wet and dry season patterns.
Annual rainfall totals 1018mm, distributed across the calendar year. The distribution pattern shows distinct wet and dry periods that influence local climate conditions.
Climate Summary Table
Complete monthly climate averages including temperature, precipitation, solar radiation, and humidity data.
| Month | Max °C | Min °C | Rain mm | Rain Days | Solar MJ | Humidity % |
|---|---|---|---|---|---|---|
| January | 29.6 | 21.4 | 136 | 15 | 20.6 | 57% |
| February | 30.0 | 21.2 | 68 | 9 | 21.0 | 55% |
| March | 26.9 | 19.2 | 92 | 15 | 16.6 | 58% |
| April | 25.1 | 16.0 | 104 | 12 | 15.2 | 55% |
| May | 21.4 | 12.6 | 50 | 12 | 11.6 | 60% |
| June | 19.5 | 9.1 | 36 | 4 | 10.8 | 51% |
| July | 19.2 | 9.2 | 33 | 10 | 11.7 | 47% |
| August | 22.9 | 11.4 | 87 | 8 | 13.3 | 50% |
| September | 24.7 | 11.8 | 103 | 7 | 18.2 | 41% |
| October | 25.7 | 14.5 | 60 | 11 | 21.0 | 46% |
| November | 27.7 | 18.7 | 160 | 18 | 20.9 | 54% |
| December | 30.2 | 19.9 | 90 | 11 | 25.8 | 51% |