South Plainfield, NJ Weather & Climate Normals
South Plainfield's real weather, in one number
South Plainfield, NJ scores 47/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
South Plainfield's hottest and coldest months
South Plainfield's hottest month is Jul, averaging 76°F; its coldest is Jan, averaging 32°F, a 44.5°F swing across the year, a middling gap by national standards.
Rain and snow in South Plainfield
South Plainfield averages 49.53in of precipitation a year across roughly 125 days with measurable rain or snow, and 29in of snow a year.
Where South Plainfield ranks
South Plainfield ranks 2635 of 4876 US cities in this dataset for comfort score, and 76 of 194 within NJ. About 25,062 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from NEW BRUNSWICK 3 SE, NJ US, 7.0 miles from South Plainfield, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station