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June Weather in Napavine, United States

Last updated: June 24, 2025

In June, the average temperature in Napavine, United States is a pleasant 16°C (61°F). However, temperatures can swing from a chilly 5°C (42°F) at their lowest to a sweltering 44°C (112°F) at their peak. Expect some showers, as precipitation averages 56 mm (2.2 in) over about 8 days. With an average humidity of 84%, be prepared for a warm, slightly humid month!

June Temperature in Napavine

In June in Napavine, the average temperature is 16°C (61°F), with maximums reaching 44°C (112°F) and minimums dropping as low as 5°C (42°F). This offers a diverse climate suitable for various activities, so be sure to pack accordingly for your visit!

June Weather in Napavine: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Napavine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Napavine, June typically has an average temperature of 16°C (61°F), with highs reaching up to 44°C (112°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec414044495661656661504440
Data source: Temperature data for Napavine 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.

June Precipitation in Napavine

In Napavine in June, the precipitation amount is 56 mm (2.2 in) over the course of 8 days.

June Precipitation Trends in Napavine

The chart displays monthly precipitation patterns in Napavine, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Napavine, June typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1771591431217656111184125166193
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Napavine

In Napavine in June, humidity is 84%. With an average temperature of 16°C (61°F), this humidity feels like a blanket of warmth, making travel slightly sticky but overall comfortable, as long as you stay hydrated and take breaks in the shade.

June Average Humidity in Napavine

This chart illustrates the average monthly humidity levels in Napavine, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Napavine is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Napavine

In Napavine in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Napavine.

Maximum UV Index Levels in Napavine for June

The chart shows the monthly maximum UV Index (UVI) for Napavine in June, 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 June, the maximum UV index in Napavine typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356910987532
Data source: Napavine June 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 June Weather in Napavine Compares to Other Months

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

This table compares monthly weather conditions in Napavine, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)177 mm (7.0 inches)86%low
February Weather4°C (40°F)159 mm (6.3 inches)84%moderate
March Weather7°C (45°F)143 mm (5.6 inches)85%moderate
April Weather10°C (50°F)121 mm (4.7 inches)83%high
May Weather13°C (56°F)76 mm (3.0 inches)84%very high
June Weather16°C (61°F)56 mm (2.2 inches)84%very high
July Weather18°C (65°F)11 mm (0.4 inches)82%very high
August Weather19°C (66°F)11 mm (0.4 inches)73%very high
September Weather16°C (61°F)84 mm (3.3 inches)74%high
October Weather10°C (50°F)125 mm (4.9 inches)83%moderate
November Weather7°C (45°F)166 mm (6.5 inches)86%moderate
December Weather4°C (40°F)193 mm (7.6 inches)87%low

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