Adirondack Weather - Typical Climate

Temperature: The elevation in New York State ranges from sea level to more than 5,300 feet (in the Adirondacks ).  Temperatures in the Adirondack region are generally high day temperatures, due to the elevation and dry atmosphere.  Night temperatures are usually cool due to the significant loss of heat by radiation back to the atmosphere.  The summer months can have temperatures reach the 90's, while the winter months can have temperatures as low as -40 degrees F.  This wide range of temperatures is different than a location closer to the Great Lakes or the ocean because bodies of water regulate temperatures, and the Adirondacks are relatively isolated compared to other parts of the state.

Precipitation: Moisture through out all of New York State is supplied through winds from the Gulf of Mexico , and the Atlantic Ocean .  The western side of the Adirondack region actually receives the largest annual precipitation, of upward to 50 inches a year.  This is due to air masses that 'run' into the hills and mountains, they rise up the western (windward) side of the mountains, condense as they rise, and dump a lot more precipitation than in flat areas of the state. 

Winter precipitation in the Adirondack region on average ranges from 10 to 12 inches for December, January, and February.  It should be noted that 10 to 12 inches are in a water equivalent form, generally 12 inches of snow for every inch of water.

March, April, and May represent a larger amount of precipitation than the winter months, due to the heating up of the atmosphere as the earth tilts closer to the sun and into the summer months.

The summer months (June, July, and August) represent the regions largest amount of precipitation, due to the frequency of low-pressure systems moving across the country during the warm summer months.  As these systems run into the mountains in the western part of the region as noted earlier, they dump a lot of their moisture on the mountains.  As the air rises, isolated thunderstorms can form, and this is another contributor to summer precipitation in the Adirondacks .

September, October, and November, the autumn season, provides less precipitation in the Adirondacks due to the fact that the atmosphere is starting to cool off in the lower levels, and there is not as much instability, which is what is needed to form thunderstorms or large amounts of rainfall.

Historical Climatic Events

Talk About Weather!

Current Conditions

Sunshine and Winds:  New York State lies within what some call the eastern cloudy belt.  The percentage of sunshine is greater in the summer months than in the fall and winter.  However it is not a factor that has as much range as temperature or precipitation.

The winds in the Adirondacks prevail from the same direction, as does most of the state.  They are generally westerly, (which is the direction that our weather comes from) but shift northerly during the winter months, which provides for the cooler temperatures.  However as in any mountain region, localized winds play a huge part in temperature differences.  The Adirondacks contain many ranges of mountains, notches, valleys, and plateaus.  All these features help in localizing winds even more than the shift in seasons.  This can affect amount of snowmelt on leeward side of mountains, and vice versa in the winter months.  In the summer it may be warmer on the leeward side of mountains, due to warm air flowing down the mountains.

 

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