Rochester
New York, USA
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Rochester, NY

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The High Falls in Rochester, New York, and the distant view of the city
The High Falls in Rochester, New York, and the distant view of the city
  • The average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.7°F).

  • The average low temperature in December: 23.5°F

The month with the highest average low temperature is July (60.7°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

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  • The average humidity in December: 77.5%

The month with the highest relative humidity is December (77.5%).
The month with the lowest relative humidity is April (67%).

  • The average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.5").
The driest month (with the lowest rainfall) is February (2").

  • The average rainfall days in December: 17.6 days

The month with the highest number of rainy days is January (19.4 days).
Months with the lowest number of rainy days are July and August (10.8 days).

  • The average snowfall in December: 21.8"

The month with the highest snowfall is January (28.2").
Months with the lowest snowfall are June, July, August and September (0").

  • The average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (18 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

  • The average sea temperature in December: 41.7°F

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is March (35.8°F).

  • The average sunshine in December: 2.5h

The month with most sunshine is July (Average sunshine: 10.1h).
The month with least sunshine is December (Average sunshine: 2.5h).

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