Rochester, NH Weather & Climate Normals
What a normal year in Rochester actually looks like
On the 30-year record NOAA keeps for Rochester, NH, the comfort score comes out to 49/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Rochester's weather actually swings
Average temperatures in Rochester run from 24°F in Jan up to 71°F in Jul, a 46.8°F seasonal swing, one of the widest gaps in this dataset.
Rochester, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 33°F | 15°F | 2.53in |
| Feb | 35°F | 17°F | 2.22in |
| Mar | 44°F | 25°F | 3.72in |
| Apr | 57°F | 35°F | 3.67in |
| May | 67°F | 45°F | 3.52in |
| Jun | 77°F | 54°F | 3.86in |
| Jul | 82°F | 60°F | 3.52in |
| Aug | 81°F | 58°F | 3.17in |
| Sep | 73°F | 50°F | 3.43in |
| Oct | 60°F | 39°F | 4.39in |
| Nov | 48°F | 31°F | 3.89in |
| Dec | 37°F | 22°F | 3.3in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Rochester's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Rochester actually gets
Rochester averages 41.22in of precipitation a year across roughly 139 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Rochester against the rest of the country
Out of 4876 cities scored here, Rochester comes in at 2081; within NH alone it ranks 4 of 13. Population is about 33,598.
Checking the actual forecast
These figures come from Rochester Skyhaven Ap, NH US, the NOAA station 3.1 miles from Rochester, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is