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United StatesThe climate of Chehalis
The current climate in Chehalis features temperatures ranging from a high of 28°C to a low of 9°C throughout the year. The average yearly temperature is around 18°C. At night, temperatures in the colder months average around 2°C and in the warmer months around 13°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Chehalis, Washington.
Temperature records
The highest temperature recorded in Chehalis in recent years was 41°C in June 2021. The lowest daytime temperature recorded was -3°C in December 2021.
Precipitation and snowfall
On average, Chehalis gets 699 mm of precipitation each year. Of this, about 26 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Chehalis?
The best time to visit Chehalis for sunny weather is May through September. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Chehalis. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Chehalis
The climate table of Chehalis shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 9 | 10 | 13 | 16 | 21 | 23 | 27 | 28 | 23 | 17 | 12 | 9 |
| Temp. min (°C) | 3 | 3 | 4 | 5 | 9 | 11 | 13 | 13 | 11 | 8 | 4 | 3 |
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| Precipitation (mm) | 81 | 80 | 103 | 41 | 59 | 19 | 8,6 | 12 | 35 | 61 | 102 | 97 |
| Snow (cm) | 0,9 | 15 | 0,9 | 2,0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,1 | 6,5 |
| UV Index | 2 | 3 | 2 | 4 | 7 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Chehalis, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Chehalis
Yearly Temperature in Chehalis
Precipitation charts
These charts show the average amount of precipitation in Chehalis, Washington. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Chehalis
Total Yearly Precipitation in Chehalis
Average Snowfall per Month in Chehalis
Total Yearly Snowfall in Chehalis
UV index chart
This chart shows the average UV index per month in Chehalis, Washington. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Chehalis
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Average weather in Chehalis by month
Click on a month below to see detailed weather info for Chehalis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.