Last updated: June 24, 2025
In Greenfield, United States, the average temperature in September is a pleasant 18°C (65°F). While daytime highs can reach up to 33°C (92°F), the nights can be cool, with minimums dipping to 2°C (35°F). Expect 93 mm (3.7 in) of precipitation spread over 8 days, contributing to an average humidity level of 72%. Prepare for a month that offers a mix of warmth and refreshing showers!
In September in Greenfield, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 2°C (35°F). This diverse climate makes Greenfield a great destination for travelers seeking both warmth and cool, refreshing conditions.
In Greenfield in September, the total precipitation amount is 93 mm (3.7 in) over the course of 8 days.
In Greenfield in September humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.
In Greenfield in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Greenfield.
UV Risk Categories
Weather in Greenfield varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Greenfield, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (28°F) | 78 mm (3.1 inches) | 89% | moderate |
| February Weather | -1°C (30°F) | 92 mm (3.6 inches) | 88% | moderate |
| March Weather | 2°C (36°F) | 81 mm (3.2 inches) | 86% | high |
| April Weather | 8°C (47°F) | 135 mm (5.3 inches) | 84% | very high |
| May Weather | 15°C (59°F) | 95 mm (3.7 inches) | 76% | very high |
| June Weather | 20°C (68°F) | 76 mm (3.0 inches) | 72% | very high |
| July Weather | 23°C (74°F) | 136 mm (5.3 inches) | 66% | very high |
| August Weather | 22°C (72°F) | 86 mm (3.4 inches) | 64% | very high |
| September Weather | 18°C (65°F) | 93 mm (3.7 inches) | 72% | very high |
| October Weather | 12°C (54°F) | 147 mm (5.8 inches) | 81% | high |
| November Weather | 4°C (40°F) | 98 mm (3.8 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 121 mm (4.8 inches) | 84% | low |