Castle Rock (WA) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Castle Rock (Washington State). The numbers are calculated over a 30-year period to provide a reliable average.
- A lot of rain (rainy season) falls in the months: January, February, March, October, November and December.
- Castle Rock has dry periods in July and August.
- On average, January is the wettest month with 207 mm of precipitation.
- On average, July is the driest month with 12 mm of precipitation.
- The average amount of annual precipitation is 1336 mm.
Current rainfall in Castle Rock (WA)
Sat Nov 23
11°C | 6°C
S 
11 km/h
11 km/h3.1 mm
broken clouds and chance of rain
Sun Nov 24
9°C | 6°C
SE 22 km/h
22 km/h21 mm
overcast and heavy rain
Mon Nov 25
10°C | 5°C
SW 11 km/h
11 km/h2.1 mm
broken clouds and rain
