Harrison, NJ Weather & Climate Normals
Harrison's real weather, in one number
Harrison, NJ scores 41/100 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. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Harrison's hottest and coldest months
Harrison's hottest month is Jul, averaging 78°F; its coldest is Jan, averaging 32°F, a 45.7°F swing across the year, one of the widest gaps in this dataset.
Harrison's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 39°F | 25°F | 3.66in | 8in |
| Feb | 42°F | 26°F | 3.26in | 8.4in |
| Mar | 50°F | 33°F | 4.3in | 4.7in |
| Apr | 62°F | 43°F | 4.07in | 0.7in |
| May | 72°F | 54°F | 4.36in | 0in |
| Jun | 82°F | 63°F | 4.87in | 0in |
| Jul | 87°F | 69°F | 4.81in | 0in |
| Aug | 85°F | 67°F | 4.38in | 0in |
| Sep | 78°F | 60°F | 4.33in | 0in |
| Oct | 66°F | 48°F | 4.15in | 0.2in |
| Nov | 54°F | 38°F | 3.65in | 0.3in |
| Dec | 44°F | 31°F | 4.58in | 5.9in |
May, Jun, Sep, and Oct are the best time to see Harrison at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Harrison
Harrison averages 50.42in of precipitation a year across roughly 120 days with measurable rain or snow, and 28.2in of snow a year.
Where Harrison ranks
Harrison ranks 4382 of 4876 US cities in this dataset for comfort score, and 193 of 194 within NJ. About 22,182 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Harrison, NJ US, 0.4 miles from Harrison, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure