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September Weather in Butterfield, United States

Last updated: June 24, 2025

In Butterfield, United States, the average temperature in September hovers around 18°C (65°F). While you can expect a minimum of 2°C (37°F), the mercury may soar to a maximum of 33°C (91°F). Prepare for about 128 mm (5.1 in) of precipitation spread over 9 days, and don't forget to account for the average humidity level of 75%—it’s definitely a month to be comfortable and prepared for any weather!

September Temperature in Butterfield

In September in Butterfield, the average temperature is 18°C (65°F). The maximum can reach 33°C (91°F), while the minimum can be as low as 2°C (37°F). This makes it a great time for travelers to enjoy a variety of outdoor activities, just be sure to pack for both warm and cooler weather.

September Weather in Butterfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Butterfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Butterfield, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec171634445972747165483425
Data source: Temperature data for Butterfield generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Butterfield

In Butterfield in September, the precipitation amount is 128 mm (5.1 in) over the course of 9 days.

September Precipitation Trends in Butterfield

The chart displays monthly precipitation patterns in Butterfield, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Butterfield, September typically receives around 128 mm (5.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec32326891137120124116129973343
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Butterfield

In Butterfield in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Butterfield

This chart illustrates the average monthly humidity levels in Butterfield, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Butterfield is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Butterfield

In Butterfield 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 Butterfield.

Maximum UV Index Levels in Butterfield for September

The chart shows the monthly maximum UV Index (UVI) for Butterfield in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Butterfield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Butterfield September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Butterfield Compares to Other Months

Weather in Butterfield varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Butterfield, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Butterfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)32 mm (1.3 inches)82%moderate
February Weather-9°C (17°F)32 mm (1.3 inches)84%moderate
March Weather1°C (34°F)68 mm (2.7 inches)80%moderate
April Weather7°C (44°F)91 mm (3.6 inches)81%very high
May Weather15°C (60°F)137 mm (5.4 inches)74%very high
June Weather22°C (72°F)120 mm (4.7 inches)80%very high
July Weather23°C (74°F)124 mm (4.9 inches)80%very high
August Weather21°C (71°F)116 mm (4.6 inches)77%very high
September Weather18°C (65°F)128 mm (5.1 inches)75%very high
October Weather9°C (49°F)97 mm (3.8 inches)80%moderate
November Weather1°C (35°F)33 mm (1.3 inches)87%moderate
December Weather-4°C (25°F)43 mm (1.7 inches)83%low

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