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April Weather in Upper Lake, United States

Last updated: June 24, 2025

In Upper Lake, United States, the average temperature in April hovers around 12°C (53°F). Expect it to dip as low as -2°C (28°F) and soar up to 30°C (87°F) on warmer days. During this month, precipitation amounts to approximately 65 mm (2.6 in) over about 8 days, with an average humidity of 80%.

April Temperature in Upper Lake

In April in Upper Lake, the average temperature is 12°C (53°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as -2°C (28°F). This variability in temperatures makes Upper Lake an ideal destination for travelers seeking both warmth and the opportunity to experience cooler days.

April Weather in Upper Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Upper Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Upper Lake, April typically has an average temperature of 12°C (53°F), with highs reaching up to 30°C (87°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec444547535969767568595044
Data source: Temperature data for Upper Lake 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 Upper Lake

In Upper Lake in April, the total precipitation amount is 65 mm (2.6 in) spread over the course of 8 days.

April Precipitation Trends in Upper Lake

The chart displays monthly precipitation patterns in Upper Lake, 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 Upper Lake, April typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec164167119654740265280110
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Upper Lake

In Upper Lake in April humidity is 80%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill clinging to your skin, making outdoor activities less inviting and prompting the need for layered clothing to stay comfortable while traveling.

April Average Humidity in Upper Lake

This chart illustrates the average monthly humidity levels in Upper Lake, 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 Upper Lake is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Upper Lake

In Upper Lake 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 Upper Lake.

Maximum UV Index Levels in Upper Lake for April

The chart shows the monthly maximum UV Index (UVI) for Upper Lake 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 Upper Lake typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578111111109743
Data source: Upper Lake 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 Upper Lake Compares to Other Months

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

This table compares monthly weather conditions in Upper Lake, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)164 mm (6.5 inches)86%moderate
February Weather7°C (46°F)167 mm (6.6 inches)84%moderate
March Weather8°C (47°F)119 mm (4.7 inches)83%high
April Weather12°C (53°F)65 mm (2.6 inches)80%very high
May Weather15°C (59°F)47 mm (1.9 inches)80%extreme
June Weather20°C (69°F)4 mm (0.1 inches)76%extreme
July Weather24°C (76°F)0 mm (0.0 inches)70%extreme
August Weather24°C (75°F)2 mm (0.1 inches)66%very high
September Weather20°C (69°F)6 mm (0.2 inches)68%very high
October Weather15°C (60°F)52 mm (2.0 inches)72%high
November Weather10°C (50°F)80 mm (3.2 inches)84%moderate
December Weather7°C (44°F)110 mm (4.3 inches)84%moderate

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