September Weather in Moorcroft, United States

Last updated: June 24, 2025

In September, the average temperature in Moorcroft, United States hovers around 16°C (62°F), making it a pleasant time to visit. However, temperatures can range from a chilling -1°C (30°F) to a sweltering 38°C (101°F), so be prepared for a broad spectrum of weather. Expect about 37 mm (1.5 in) of precipitation over approximately 5 days, contributing to an average humidity of 79%. Whether you're embracing the chill or enjoying the warmth, pack accordingly!

September Temperature in Moorcroft

In September in Moorcroft, the average temperature is 16°C (62°F). Maximums can reach 38°C (101°F), while minimums can drop to as low as -1°C (30°F). This wide temperature range makes it essential for travelers to pack accordingly to enjoy their visit comfortably.

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

The chart illustrates September temperature patterns in Moorcroft, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Moorcroft, September typically has an average temperature of 16°C (62°F), with highs reaching up to 38°C (101°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec252237425367737061433629
Data source: Temperature data for Moorcroft 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 Moorcroft

In Moorcroft in September, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.

September Precipitation Trends in Moorcroft

The chart displays monthly precipitation patterns in Moorcroft, 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 Moorcroft, September typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec182433585735634037441825
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Moorcroft

In Moorcroft in September, humidity is 79%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that makes walking outdoors feel languid and heavy, demanding frequent breaks and plenty of water as you navigate the bustling streets.

September Average Humidity in Moorcroft

This chart illustrates the average monthly humidity levels in Moorcroft, 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 Moorcroft is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%71%70%75%82%84%85%79%75%75%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Moorcroft

In Moorcroft 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 Moorcroft.

Maximum UV Index Levels in Moorcroft for September

The chart shows the monthly maximum UV Index (UVI) for Moorcroft 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 Moorcroft typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3561091111108532
Data source: Moorcroft 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 Moorcroft Compares to Other Months

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

This table compares monthly weather conditions in Moorcroft, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)18 mm (0.7 inches)78%moderate
February Weather-5°C (22°F)24 mm (0.9 inches)79%moderate
March Weather3°C (37°F)33 mm (1.3 inches)71%high
April Weather5°C (42°F)58 mm (2.3 inches)70%very high
May Weather12°C (54°F)57 mm (2.2 inches)75%very high
June Weather20°C (67°F)35 mm (1.4 inches)82%extreme
July Weather23°C (74°F)63 mm (2.5 inches)84%extreme
August Weather21°C (71°F)40 mm (1.6 inches)85%very high
September Weather16°C (62°F)37 mm (1.5 inches)79%very high
October Weather6°C (43°F)44 mm (1.7 inches)75%moderate
November Weather2°C (36°F)18 mm (0.7 inches)75%moderate
December Weather-2°C (29°F)25 mm (1.0 inches)81%low

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