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Monthly climate in Altona, New York, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Altona features a humid continental climate (Dfb). Temperatures typically range between -8 °C (19 °F) and 21 °C (71 °F) through the year, but rarely can drop to -29 °C (-21 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1260 mm (49.6 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Altona enjoys an average of 2785 hours of sunshine throughout the year, and daylight varies from 8 hours 49 minutes to 15 hours 31 minutes per day.

Monthly average temperatures in Altona, New York, United States §

The warmest months in Altona are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (19 - 25 °F) throughout the day. On average each year, Altona experiences 49 days above 25 °C (77.0 °F) and 136 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Altona, New York, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 12°C
(54°F)		 15°C
(59°F)		 22°C
(71°F)		 26°C
(78°F)		 37°C
(98°F)		 34°C
(93°F)		 36°C
(96°F)		 33°C
(91°F)		 32°C
(90°F)		 27°C
(81°F)		 24°C
(75°F)		 14°C
(58°F)
Mean maximum 7°C
(45°F)		 9°C
(49°F)		 14°C
(58°F)		 21°C
(71°F)		 30°C
(87°F)		 30°C
(87°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(84°F)		 24°C
(75°F)		 16°C
(62°F)		 11°C
(52°F)
Average high -4°C
(25°F)		 -2°C
(29°F)		 2°C
(37°F)		 10°C
(51°F)		 18°C
(65°F)		 23°C
(74°F)		 26°C
(80°F)		 25°C
(78°F)		 21°C
(70°F)		 14°C
(57°F)		 5°C
(41°F)		 -1°C
(30°F)
Daily mean -8°C
(19°F)		 -6°C
(21°F)		 -2°C
(29°F)		 6°C
(42°F)		 13°C
(56°F)		 18°C
(65°F)		 21°C
(71°F)		 20°C
(69°F)		 16°C
(61°F)		 9°C
(49°F)		 1°C
(34°F)		 -4°C
(25°F)
Average low -12°C
(11°F)		 -11°C
(13°F)		 -6°C
(22°F)		 1°C
(35°F)		 8°C
(46°F)		 13°C
(55°F)		 16°C
(62°F)		 15°C
(60°F)		 11°C
(52°F)		 5°C
(42°F)		 -3°C
(27°F)		 -8°C
(18°F)
Mean minimum -23°C
(-10°F)		 -22°C
(-8°F)		 -18°C
(-1°F)		 -7°C
(20°F)		 -0°C
(32°F)		 7°C
(44°F)		 10°C
(50°F)		 8°C
(47°F)		 2°C
(37°F)		 -3°C
(27°F)		 -14°C
(7°F)		 -21°C
(-5°F)
Minimum -29°C
(-21°F)		 -26°C
(-14°F)		 -21°C
(-6°F)		 -11°C
(12°F)		 -1°C
(30°F)		 2°C
(36°F)		 9°C
(48°F)		 6°C
(43°F)		 -2°C
(28°F)		 -6°C
(21°F)		 -17°C
(1°F)		 -28°C
(-18°F)

Compare climate in Altona with other places

Compare temperature, precipitation, sunshine, UV index in Altona, New York, United States with other places around the world.

Monthly average precipitation in Altona, New York, United States §

Altona usually has the most precipitation in June, July and October, with an average of 14 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Altona are January, September and December. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Altona, New York, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 85 (3.3) 87 (3.4) 89 (3.5) 119 (4.7) 106 (4.2) 121 (4.7) 125 (4.9) 117 (4.6) 75 (2.9) 143 (5.6) 112 (4.4) 82 (3.2)
Average precipitation days (≥ 1 mm) 12 12 13 14 13 13 15 14 10 14 15 13

Monthly sunshine hours in Altona, New York, United States §

The sunniest months in Altona are June, July and August, when the sun shines an average of 10 hours 52 minutes a day. Least sunny months in Altona: January, November and December receive an average of 4 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Altona, New York, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 117 153 233 222 283 324 341 334 288 196 147 143
Mean daily daylight hours 9h 12m 10h 25m 11h 57m 13h 31m 14h 51m 15h 31m 15h 9m 13h 58m 12h 27m 10h 54m 9h 32m 8h 49m

Solar UV radiation in Altona, New York, United States §

Altona experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Altona UV Index data.

Average daily maximum UV levels by month for Altona, New York, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 7 9 9 8 8 7 5 3 2

Detailed Monthly Weather Insights for Altona, New York, United States

Discover in-depth weather details for every month in Altona. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Altona's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.