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January Weather in Dale City, United States

Last updated: June 24, 2025

In Dale City, United States, the average temperature in January hovers around 3°C (38°F). However, temperatures can fluctuate dramatically, with a minimum of -14°C (7°F) and a maximum of 21°C (70°F). Expect about 61 mm (2.4 in) of precipitation spread over 8 days, and prepare for a relatively humid experience, with an average humidity level of 84%.

January Temperature in Dale City

In January in Dale City, the average temperature is 3°C (38°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -14°C (7°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

January Weather in Dale City: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Dale City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dale City, January typically has an average temperature of 3°C (38°F), with highs reaching up to 21°C (70°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec374147576775817872634841
Data source: Temperature data for Dale City 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 Dale City

In Dale City in January, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

January Precipitation Trends in Dale City

The chart displays monthly precipitation patterns in Dale City, 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 Dale City, January typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec619681102125109119152961078191
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Dale City

In Dale City in January, humidity is 84%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as the cold air clings to you and the moisture creates an oppressive heaviness in the atmosphere.

January Average Humidity in Dale City

This chart illustrates the average monthly humidity levels in Dale City, 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 Dale City is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Dale City

In Dale City 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 Dale City, you can check the information here.

Maximum UV Index Levels in Dale City for January

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

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

This table compares monthly weather conditions in Dale City, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)61 mm (2.4 inches)84%moderate
February Weather5°C (42°F)96 mm (3.8 inches)83%moderate
March Weather8°C (47°F)81 mm (3.2 inches)83%high
April Weather14°C (57°F)102 mm (4.0 inches)81%very high
May Weather19°C (67°F)125 mm (4.9 inches)78%very high
June Weather24°C (76°F)109 mm (4.3 inches)79%very high
July Weather27°C (81°F)119 mm (4.7 inches)74%very high
August Weather25°C (78°F)152 mm (6.0 inches)72%very high
September Weather22°C (72°F)96 mm (3.8 inches)75%very high
October Weather17°C (63°F)107 mm (4.2 inches)81%high
November Weather9°C (48°F)81 mm (3.2 inches)85%moderate
December Weather5°C (42°F)91 mm (3.6 inches)84%moderate

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