April Weather in Harlowton, United States

Last updated: June 24, 2025

In Harlowton, United States, the average temperature in April hovers around 4°C (39°F), with the thermometer occasionally dipping to a chilly -20°C (-4°F) or reaching a warm 26°C (78°F). During this time, expect 63 mm (2.5 in) of precipitation over approximately 12 days, contributing to an average humidity of 72%.

April Temperature in Harlowton

In April in Harlowton, the average temperature is 4°C (39°F), with maximums reaching 26°C (78°F) and minimums dropping as low as -20°C (-4°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack layers to accommodate both chilly and warmer days.

April Weather in Harlowton: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Harlowton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlowton, April typically has an average temperature of 4°C (39°F), with highs reaching up to 26°C (78°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec241832395061696757423326
Data source: Temperature data for Harlowton 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.

April Precipitation in Harlowton

In Harlowton in April, the total precipitation amount reaches 63 mm (2.5 in) over the course of 12 days.

April Precipitation Trends in Harlowton

The chart displays monthly precipitation patterns in Harlowton, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Harlowton, April typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec194126636762182238332625
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Harlowton

In Harlowton in April, humidity is 72%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to bundle up tightly against the cold, while the heavy air can leave you feeling sluggish and yearning for warmth indoors.

April Average Humidity in Harlowton

This chart illustrates the average monthly humidity levels in Harlowton, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Harlowton is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%85%77%72%75%78%79%76%67%69%78%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Harlowton

In Harlowton in April, 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 Harlowton.

Maximum UV Index Levels in Harlowton for April

The chart shows the monthly maximum UV Index (UVI) for Harlowton in April, 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 April, the maximum UV index in Harlowton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246891010108532
Data source: Harlowton April 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 April Weather in Harlowton Compares to Other Months

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

This table compares monthly weather conditions in Harlowton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)19 mm (0.8 inches)81%low
February Weather-8°C (19°F)41 mm (1.6 inches)85%moderate
March Weather0°C (32°F)26 mm (1.0 inches)77%high
April Weather4°C (39°F)63 mm (2.5 inches)72%very high
May Weather10°C (51°F)67 mm (2.6 inches)75%very high
June Weather16°C (61°F)62 mm (2.4 inches)78%very high
July Weather21°C (69°F)17 mm (0.7 inches)79%very high
August Weather20°C (67°F)21 mm (0.8 inches)76%very high
September Weather14°C (57°F)38 mm (1.5 inches)67%very high
October Weather5°C (42°F)33 mm (1.3 inches)69%moderate
November Weather1°C (33°F)26 mm (1.0 inches)78%moderate
December Weather-3°C (27°F)25 mm (1.0 inches)85%low

Compare Harlowton's Climate with Cities Worldwide