January Weather in Opal, United States

Last updated: June 24, 2025

In January, the average temperature in Opal, United States is a brisk 3°C (38°F). Be prepared for a wide range of temperatures, with lows dipping to -16°C (4°F) and highs reaching up to 21°C (71°F). Expect about 60 mm (2.3 in) of precipitation spread over 8 days, contributing to a high average humidity of 86%. Dress warmly and stay dry!

January Temperature in Opal

In January in Opal, the average temperature is 3°C (38°F). Maximum temperatures can reach 21°C (71°F), while minimums can drop as low as -16°C (4°F). Visitors should be prepared for a wide range of temperatures and dress accordingly for their travels.

January Weather in Opal: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Opal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Opal, January typically has an average temperature of 3°C (38°F), with highs reaching up to 21°C (71°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec374248586775817872624741
Data source: Temperature data for Opal 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.

January Precipitation in Opal

In Opal in January, the precipitation amount is 60 mm (2.3 in) over a span of 8 days.

January Precipitation Trends in Opal

The chart displays monthly precipitation patterns in Opal, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Opal, January typically receives around 60 mm (2.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec60907410311610685132901068085
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Opal

In Opal in January humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

January Average Humidity in Opal

This chart illustrates the average monthly humidity levels in Opal, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Opal is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Opal

In Opal in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Opal, you can check the information here.

Maximum UV Index Levels in Opal for January

The chart shows the monthly maximum UV Index (UVI) for Opal in January, 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 January, the maximum UV index in Opal typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Opal January 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 January Weather in Opal Compares to Other Months

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

This table compares monthly weather conditions in Opal, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)60 mm (2.3 inches)86%moderate
February Weather6°C (42°F)90 mm (3.5 inches)86%moderate
March Weather9°C (48°F)74 mm (2.9 inches)86%high
April Weather14°C (58°F)103 mm (4.1 inches)84%very high
May Weather19°C (67°F)116 mm (4.5 inches)78%very high
June Weather24°C (76°F)106 mm (4.2 inches)79%very high
July Weather27°C (81°F)85 mm (3.3 inches)70%very high
August Weather25°C (78°F)132 mm (5.2 inches)59%very high
September Weather22°C (72°F)90 mm (3.5 inches)68%very high
October Weather17°C (63°F)106 mm (4.2 inches)80%high
November Weather9°C (48°F)80 mm (3.2 inches)86%moderate
December Weather5°C (42°F)85 mm (3.3 inches)85%moderate

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