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January Weather in Mountain View, United States

Last updated: June 24, 2025

In January, the average temperature in Mountain View, United States hovers around -1°C (31°F). Be prepared for a minimum temperature that can drop to -23°C (-10°F), but you might also experience a maximum of 19°C (67°F). During this time, expect precipitation of about 23 mm (0.9 in) spread across 4 days, and an average humidity level of 88%.

January Temperature in Mountain View

In January in Mountain View, the average temperature is -1°C (31°F), with maximums reaching 19°C (67°F) and minimums plummeting to -23°C (-10°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their visit.

January Weather in Mountain View: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mountain View, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain View, January typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (67°F) and lows dropping to around -23°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec302939475568737266494033
Data source: Temperature data for Mountain View 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 Mountain View

In Mountain View in January, the total precipitation amount is 23 mm (0.9 in) over a span of 4 days.

January Precipitation Trends in Mountain View

The chart displays monthly precipitation patterns in Mountain View, 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 Mountain View, January typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec2329575511148443629372414
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mountain View

In Mountain View in January, humidity is 88%. With an average temperature of -1°C (31°F), this humidity feels like a biting cold that penetrates your clothing, making outdoor exploration challenging and the air clingy, adding an extra chill that can make you feel even colder than the temperature suggests.

January Average Humidity in Mountain View

This chart illustrates the average monthly humidity levels in Mountain View, 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 Mountain View is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mountain View

In Mountain View in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mountain View for better planning.

Maximum UV Index Levels in Mountain View for January

The chart shows the monthly maximum UV Index (UVI) for Mountain View 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 Mountain View typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111212121110754
Data source: Mountain View 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 Mountain View Compares to Other Months

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

This table compares monthly weather conditions in Mountain View, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)23 mm (0.9 inches)88%moderate
February Weather-1°C (30°F)29 mm (1.1 inches)87%high
March Weather4°C (40°F)57 mm (2.3 inches)81%very high
April Weather8°C (47°F)55 mm (2.2 inches)76%extreme
May Weather13°C (56°F)111 mm (4.4 inches)66%extreme
June Weather20°C (68°F)48 mm (1.9 inches)58%extreme
July Weather23°C (74°F)43 mm (1.7 inches)52%extreme
August Weather22°C (72°F)35 mm (1.4 inches)56%extreme
September Weather19°C (66°F)29 mm (1.2 inches)65%very high
October Weather9°C (49°F)37 mm (1.5 inches)76%high
November Weather5°C (41°F)24 mm (1.0 inches)82%moderate
December Weather1°C (34°F)14 mm (0.6 inches)89%moderate

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