Hillsdale, NJ Weather & Climate Normals
Hillsdale's real weather, in one number
Hillsdale, NJ scores 45/100 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.
Hillsdale's hottest and coldest months
Hillsdale's hottest month is Jul, averaging 78°F; its coldest is Jan, averaging 33°F, a 45.2°F swing across the year, one of the widest gaps in this dataset.
Hillsdale's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 40°F | 26°F | 3.28in |
| Feb | 43°F | 27°F | 2.82in |
| Mar | 51°F | 34°F | 4.09in |
| Apr | 63°F | 44°F | 3.97in |
| May | 73°F | 53°F | 3.94in |
| Jun | 82°F | 63°F | 4.25in |
| Jul | 87°F | 69°F | 4.45in |
| Aug | 85°F | 67°F | 4.25in |
| Sep | 78°F | 60°F | 4.11in |
| Oct | 67°F | 48°F | 3.73in |
| Nov | 56°F | 38°F | 3.3in |
| Dec | 45°F | 31°F | 4.1in |
May, Jun, Sep, and Oct are the best time to see Hillsdale at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Hillsdale
Over a typical year, Hillsdale sees about 46.29in of precipitation a year across roughly 127 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Hillsdale ranks
Hillsdale ranks 3469 of 4876 US cities in this dataset for comfort score, and 131 of 194 within NJ. About 10,266 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Teterboro Ap, NJ US, 10.9 miles from Hillsdale, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated