What is the hottest month in Castleton-on-Hudson?

July is the warmest month in Castleton-on-Hudson, with an average high of 83.5°F.

What is the coldest month in Castleton-on-Hudson?

January is the coldest month in Castleton-on-Hudson, with an average low of 16.1°F.

What month does Castleton-on-Hudson get the most rain?

September is typically the wettest month in Castleton-on-Hudson, with about 4.59 inches of precipitation.

What plant hardiness zone is Castleton-on-Hudson in?

Castleton-on-Hudson is approximately in USDA plant hardiness Zone 7a, based on the average annual extreme minimum temperature.

Castleton-on-Hudson, NY

Climate overview — based on NOAA 1991-2020 normals from VALATIE 1 N, NY US.

Dfa Hot-summer humid continental climate 7a USDA hardiness Zone 7a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Castleton-on-Hudson has an annual average temperature of 49.5°F with about 42 inches of precipitation per year. The warmest month is July (average high 83.5°F), and the coldest is January (average low 16.1°F). September is typically the wettest month (4.59 in) and January the driest (2.17 in).

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

47.5°F

warmest to coldest month

Heating need

6,072

HDD/yr

Cooling need

507

CDD/yr

Best time to visit Castleton-on-Hudson

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Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	34.0°F	16.1°F	25.0°F	2.17 in	—	8
February	36.6°F	17.6°F	27.1°F	2.17 in	—	7
March	45.1°F	26.7°F	35.9°F	2.92 in	—	9
April	58.9°F	36.9°F	47.9°F	3.34 in	—	11
May	70.8°F	47.9°F	59.4°F	3.80 in	—	12
June	78.9°F	57.5°F	68.2°F	4.45 in	—	11
July	83.5°F	61.5°F	72.5°F	3.76 in	—	10
August	82.1°F	60.3°F	71.2°F	4.41 in	—	11
September	74.9°F	52.4°F	63.6°F	4.59 in	—	9
October	62.2°F	40.8°F	51.5°F	4.33 in	—	11
November	50.2°F	32.1°F	41.2°F	3.18 in	—	9
December	39.1°F	22.9°F	31.0°F	2.85 in	—	9