Weather in Rochester in December 2025
- December is usually the wettest month of the year in Rochester;
Average weather
Average temperature in Rochester in December
The temperature in December is +7°C on average, with a range between a maximum of +16°C during the day and a minimum of -6°C at night.
The average maximum temperature goes down 41% by the end of the month, compared with the beginning of the month, from +10°C to +1°C.
Is Rochester warm or cold in December?
Rochester is typically cool in December.
Maximum temperatures go down compared to the previous month from +9°C to +3°C. The minimum temperature also goes down from +2°C to -3°C.
Pack a sweater and a jacket as there will be cooler temperatures.
December is one of the coolest months in Rochester, here is the comparison with other months:
Climate in Rochester in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +9°C | +3°C | 0°C | ||||
| Min. temperature | ||||||
| -15°C | -22°C | -25°C | ||||
| Max. temperature | ||||||
| +26°C | +21°C | +19°C | ||||
| Rainfall | ||||||
| 83 mm | 55 mm | 36 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 73% | 75% | 74% | ||||
| Air pressure | ||||||
| 1017 HPa | 1017 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 0 | ||||
| Cloudy days | ||||||
| 9 | 7 | 7 | ||||
| Rainy days | ||||||
| 13 | 7 | 4 | ||||
| Snowy days | ||||||
| 7 | 16 | 20 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +9°C in the day, the average maximum temperature lowers to +3°C. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 83 mm to 55 mm. Humidity rises from 73% to 75%. The average wind speed doesn’t change much during December, staying around 4 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Rochester is gradually decreasing during December, going from 3 m/s to 2 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Rochester.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Rochester?
Climate Change over Years
The climate in Rochester in December has not changed much over the last 43 years.
The average temperature was the lowest in 1992 (+12°C) and the highest in 2012 (+16°C). The driest year was 1999 with only 704 mm of rainfall, and the wettest year was 2021 with 1454 mm.
FAQ
Is December a good time to visit Rochester?
Can you sunbathe in Rochester in December?
Is Rochester rainy in December?
Is it sunny in Rochester in December?
Other cities in USA
Monthly weather in Rochester
Source of the data
For this page, we’ve looked at the typical weather in Rochester, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
