Unionville, NY
Climate overview — based on NOAA 1991-2020 normals from SUSSEX 8 NNW, NJ US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Unionville has an annual average temperature of 49.6°F with about 0 inches of precipitation per year. The warmest month is July (average high 82.3°F), and the coldest is January (average low 17.9°F).
Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
46°F
warmest to coldest month
Best time to visit Unionville
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Unionville's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 226 | |
| 2000s | 140 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 34.6°F | 17.9°F | 26.3°F | in | — | — |
| February | 37.5°F | 18.8°F | 28.2°F | in | — | — |
| March | 45.6°F | 26.8°F | 36.2°F | in | — | — |
| April | 58.7°F | 38.3°F | 48.5°F | in | — | — |
| May | 69.1°F | 48.4°F | 58.8°F | in | — | — |
| June | 77.2°F | 57.0°F | 67.1°F | in | — | — |
| July | 82.3°F | 62.3°F | 72.3°F | in | — | — |
| August | 81.0°F | 60.6°F | 70.8°F | in | — | — |
| September | 73.1°F | 53.0°F | 63.0°F | in | — | — |
| October | 62.3°F | 42.0°F | 52.2°F | in | — | — |
| November | 49.3°F | 32.5°F | 40.9°F | in | — | — |
| December | 38.8°F | 24.0°F | 31.4°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when