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San Luis Obispo (CA) Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in San Luis Obispo (California). The numbers are calculated over a 30-year period to provide a reliable average.

  • San Luis Obispo has dry periods in May, June, July, August, September and October.
  • On average, December is the wettest month with 98 mm of precipitation.
  • On average, August is the driest month with 0 mm of precipitation.
  • The average amount of annual precipitation is 426 mm.

Current rainfall in San Luis Obispo (CA)

Sat   Nov 23
19°C | 10°C
NW 18 km/h
3.4 mm
almost clear and rain

almost clear and rain

Sun   Nov 24
19°C | 8°C
SW 14 km/h
0.5 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Mon   Nov 25
18°C | 9°C
SE 18 km/h
23 mm
overcast and heavy rain

overcast and heavy rain

Interested in more climate information?

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