What’s the climate like in Chehalis?
The current climate of Chehalis features average monthly temperatures ranging from highs of 28°C during the day to lows of 9°C. 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.
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.
On average, Chehalis gets 699 mm of precipitation each year. Of this, about 26 cm is snowfall. For comparison, London gets 701 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 good 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.
Climate Table of Chehalis
The climate table of Chehalis shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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.
- Average yearly temperature: 18°C
- Highest temperature: 28°C in August
- Lowest temperature: 9°C in January and December
- Precipitation*: 699 mm per year, averaging 58 mm per month
- Snowfall: 26 cm per year
- Driest months: 8,6 mm in July, 12 mm in August and 19 mm in June
- Wettest months: 103 mm in March, 102 mm in November and 97 mm in December
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Chehalis
This graph shows the average maximum temperatures per month in Chehalis, Washington. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Chehalis
This graph shows how much precipitation Chehalis, Washington, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Chehalis
This graph shows how much snow Chehalis, Washington, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Chehalis
This graph 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.
Yearly Temperature in Chehalis
This graph shows the average yearly temperature in Chehalis, Washington. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Chehalis
This chart shows the total yearly precipitation in Chehalis, Washington, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Chehalis
This chart shows the total yearly snowfall in Chehalis, Washington, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences 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.
