Perth Amboy, NJ Weather & Climate Normals
Perth Amboy's real weather, in one number
Perth Amboy, 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.
Perth Amboy's hottest and coldest months
Perth Amboy'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.
Perth Amboy's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 40°F | 23°F | 3.74in | 8.3in |
| Feb | 43°F | 24°F | 2.97in | 9.3in |
| Mar | 51°F | 31°F | 4.4in | 5.2in |
| Apr | 63°F | 41°F | 3.89in | 0.6in |
| May | 72°F | 51°F | 4.03in | 0in |
| Jun | 81°F | 60°F | 4.83in | 0in |
| Jul | 87°F | 66°F | 4.83in | 0in |
| Aug | 85°F | 64°F | 4.66in | 0in |
| Sep | 78°F | 57°F | 4.18in | 0in |
| Oct | 67°F | 44°F | 4.11in | 0.2in |
| Nov | 56°F | 35°F | 3.4in | 0.5in |
| Dec | 45°F | 28°F | 4.49in | 4.9in |
May, Jun, Aug, Sep, and Oct are the best time to see Perth Amboy at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Perth Amboy
Perth Amboy averages 49.53in of precipitation a year across roughly 125 days with measurable rain or snow, and 29in of snow a year.
Where Perth Amboy ranks
Perth Amboy ranks 2566 of 4876 US cities in this dataset for comfort score, and 73 of 194 within NJ. About 56,939 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, 8.6 miles from Perth Amboy, 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