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September Weather in Juniata, United States

Last updated: June 24, 2025

In September, the average temperature in Juniata, United States hovers around 21°C (70°F). However, be prepared for a bit of variability, as temperatures can dip to a chilly 4°C (40°F) or soar up to a sizzling 36°C (97°F). During this month, expect precipitation to amount to about 61 mm (2.4 in) over 6 days, paired with an average humidity of 77%.

September Temperature in Juniata

In September in Juniata, the average temperature is 21°C (70°F), with maximums reaching 36°C (97°F) and minimums dropping to as low as 4°C (40°F). This diverse range of temperatures makes it a perfect time to pack layers and enjoy various outdoor activities.

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

The chart illustrates September temperature patterns in Juniata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juniata, September typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (97°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec272741506275787570524132
Data source: Temperature data for Juniata 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 Juniata

In Juniata in September, the total precipitation amount is 61 mm (2.4 in) spread over a period of 6 days.

September Precipitation Trends in Juniata

The chart displays monthly precipitation patterns in Juniata, 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 Juniata, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec2720884816772737661802140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Juniata

In Juniata in September, humidity is 77%. With an average temperature of 21°C (70°F), this humidity feels like a warm, slightly sticky embrace, making travel invigorating yet slightly uncomfortable as you navigate the vibrant streets and outdoor attractions.

September Average Humidity in Juniata

This chart illustrates the average monthly humidity levels in Juniata, 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 Juniata is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%81%69%71%80%83%84%84%77%72%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Juniata

In Juniata 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 Juniata.

Maximum UV Index Levels in Juniata for September

The chart shows the monthly maximum UV Index (UVI) for Juniata 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 Juniata typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111108643
Data source: Juniata 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 Juniata Compares to Other Months

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

This table compares monthly weather conditions in Juniata, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)27 mm (1.1 inches)73%moderate
February Weather-3°C (27°F)20 mm (0.8 inches)81%moderate
March Weather5°C (42°F)88 mm (3.5 inches)69%high
April Weather10°C (50°F)47 mm (1.9 inches)71%very high
May Weather16°C (62°F)167 mm (6.6 inches)80%very high
June Weather24°C (75°F)72 mm (2.9 inches)83%extreme
July Weather25°C (78°F)73 mm (2.9 inches)84%extreme
August Weather24°C (75°F)76 mm (3.0 inches)84%very high
September Weather21°C (70°F)61 mm (2.4 inches)77%very high
October Weather11°C (52°F)80 mm (3.1 inches)72%high
November Weather5°C (41°F)21 mm (0.8 inches)80%moderate
December Weather0°C (32°F)40 mm (1.6 inches)79%moderate

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