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September Weather in Julesburg, United States

Last updated: June 24, 2025

In September, the average temperature in Julesburg, United States hovers around 20°C (68°F). Expect a minimum of 1°C (34°F) and a maximum of 39°C (103°F), offering a considerable range. Precipitation is modest, with an expected 28 mm (1.1 in) falling over 5 days, while the average humidity remains at a comfortable 70%. Enjoy the diverse climate this time of year!

September Temperature in Julesburg

In September in Julesburg, the average temperature is 20°C (68°F). Maximums can reach 39°C (103°F) and minimums can be as low as 1°C (34°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and cool clothing for a comfortable visit.

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

The chart illustrates September temperature patterns in Julesburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Julesburg, September typically has an average temperature of 20°C (68°F), with highs reaching up to 39°C (103°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec312941485872777368494134
Data source: Temperature data for Julesburg 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 Julesburg

In Julesburg in September, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

September Precipitation Trends in Julesburg

The chart displays monthly precipitation patterns in Julesburg, 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 Julesburg, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1317635512442544228361817
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Julesburg

In Julesburg in September, humidity is 70%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace that can make traveling a bit heavy and sticky but also invigorating, as the moisture in the air invigorates your skin and keeps you refreshed during your adventures.

September Average Humidity in Julesburg

This chart illustrates the average monthly humidity levels in Julesburg, 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 Julesburg is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Julesburg

In Julesburg in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Julesburg.

Maximum UV Index Levels in Julesburg for September

The chart shows the monthly maximum UV Index (UVI) for Julesburg 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 Julesburg typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Julesburg 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 Julesburg Compares to Other Months

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

This table compares monthly weather conditions in Julesburg, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)13 mm (0.5 inches)73%moderate
February Weather-2°C (29°F)17 mm (0.7 inches)80%moderate
March Weather5°C (42°F)63 mm (2.5 inches)64%high
April Weather9°C (48°F)55 mm (2.2 inches)64%very high
May Weather14°C (58°F)124 mm (4.9 inches)76%very high
June Weather22°C (72°F)42 mm (1.6 inches)79%extreme
July Weather25°C (77°F)54 mm (2.1 inches)77%extreme
August Weather23°C (74°F)42 mm (1.6 inches)79%very high
September Weather20°C (68°F)28 mm (1.1 inches)70%very high
October Weather10°C (50°F)36 mm (1.4 inches)64%high
November Weather5°C (42°F)18 mm (0.7 inches)75%moderate
December Weather1°C (34°F)17 mm (0.7 inches)78%moderate

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