Climate of Chehalis

Chehalis has a mediterranean climate. The summers are warm and dry, and the temperature is cold in the winter. The average annual temperature for Chehalis is 15° degrees and there is about 821 mm of rain in a year. It is dry for 155 days a year with an average humidity of 83% and an UV-index of 3.

Climate averages for the whole year

Day: the average daily temperature during the day is between 6°C and 25°C
Night:the average nighttime temperature is between 0°C and 10°C
Rain: it rains 183 days and there is a total of approximately 820 mm rainfall
Snow: it snows an average of 11 days per year
Sun hours: throughout the year there are 2361 sun hours

Maximum temperature:	between 6°C and 25°C
Warmest month:	25°C in July
Coldest month:	6°C in December
Night temperature:	between 0°C and 10°C
Dry days:	171 days
Days with rain:	183 days
Days with snow:	11 days
Total rain sum:	820 mm
Hours of sunshine:	2361 hours

Climate of Chehalis
Temperature graph
Precipitation graph
Climate chart of Chehalis
The best travel time for Chehalis
Climate of Chehalis by month
Experiences with the weather of Chehalis

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Chehalis.

Precipitation graph

This graph shows the average amount of rainfall per month for Chehalis.

Climate table of Chehalis

In this climate table you can see at a glance what the average weather per month is for Chehalis. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Chehalis might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	7	8	10	13	18	21	25	25	21	15	9	6
Night temp. (°C)	1	1	2	3	5	7	9	10	8	6	3	0
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	105	84	95	75	45	29	9	13	33	101	117	114
Days with rain	18	18	22	19	14	12	6	6	10	17	21	20
Days with snow	2	4	2	-	-	-	-	-	-	-	1	2
Dry days	11	6	7	11	17	18	25	25	20	14	8	9
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	4	4	5	7	8	9	10	10	9	5	4	4
Wind force (Bft)	2	2	2	2	2	2	2	2	2	2	2	2
UV-index	2	2	3	3	4	4	5	4	3	3	2	2

Best time to visit Chehalis

The best time to visit Chehalis in the state of Washington is from May through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Chehalis is 25°C in July and the lowest is 6°C in December.

Climate of Chehalis by month

What is the average climate in a given month for Chehalis? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January