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Monthly climate in Amboy, Washington, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Amboy features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 2 °C (37 °F) and 19 °C (66 °F) through the year, but rarely can drop to -13 °C (9 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 2251 mm (88.6 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually. Amboy enjoys an average of 2705 hours of sunshine throughout the year, and daylight varies from 8 hours 42 minutes to 15 hours 39 minutes per day.

Monthly average temperatures in Amboy, Washington, United States §

The warmest months in Amboy are July, August and September, with daily mean temperatures ranging from 15 to 19 °C (60 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 3 °C (37 - 38 °F) throughout the day. On average each year, Amboy experiences 39 days above 25 °C (77.0 °F) and 56 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Amboy, Washington, 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 14°C
(57°F)		 16°C
(60°F)		 19°C
(67°F)		 29°C
(84°F)		 31°C
(88°F)		 43°C
(110°F)		 35°C
(96°F)		 37°C
(99°F)		 34°C
(94°F)		 25°C
(77°F)		 17°C
(64°F)		 13°C
(56°F)
Mean maximum 11°C
(52°F)		 12°C
(54°F)		 16°C
(61°F)		 23°C
(74°F)		 27°C
(81°F)		 32°C
(89°F)		 32°C
(90°F)		 35°C
(96°F)		 31°C
(88°F)		 21°C
(70°F)		 15°C
(60°F)		 11°C
(52°F)
Average high 6°C
(43°F)		 6°C
(43°F)		 10°C
(50°F)		 13°C
(56°F)		 18°C
(64°F)		 21°C
(69°F)		 25°C
(76°F)		 26°C
(78°F)		 21°C
(70°F)		 14°C
(58°F)		 9°C
(49°F)		 6°C
(43°F)
Daily mean 3°C
(38°F)		 2°C
(37°F)		 5°C
(42°F)		 8°C
(47°F)		 12°C
(54°F)		 15°C
(59°F)		 18°C
(65°F)		 19°C
(66°F)		 15°C
(60°F)		 9°C
(49°F)		 6°C
(43°F)		 3°C
(38°F)
Average low 1°C
(34°F)		 -1°C
(31°F)		 1°C
(35°F)		 4°C
(39°F)		 7°C
(45°F)		 10°C
(50°F)		 12°C
(53°F)		 12°C
(55°F)		 10°C
(51°F)		 5°C
(41°F)		 3°C
(38°F)		 1°C
(33°F)
Mean minimum -7°C
(20°F)		 -9°C
(17°F)		 -4°C
(25°F)		 -2°C
(29°F)		 2°C
(36°F)		 5°C
(41°F)		 8°C
(46°F)		 8°C
(46°F)		 5°C
(42°F)		 -2°C
(29°F)		 -3°C
(27°F)		 -7°C
(20°F)
Minimum -13°C
(9°F)		 -13°C
(9°F)		 -6°C
(21°F)		 -3°C
(26°F)		 0°C
(33°F)		 5°C
(40°F)		 6°C
(43°F)		 7°C
(44°F)		 4°C
(39°F)		 -4°C
(25°F)		 -4°C
(25°F)		 -11°C
(13°F)

Compare climate in Amboy with other places

Compare temperature, precipitation, sunshine, UV index in Amboy, Washington, United States with other places around the world.

Monthly average precipitation in Amboy, Washington, United States §

Amboy usually has the most precipitation in January, November and December, with an average of 19 rainy days and 312 mm (12.3 inches) of precipitation per month. The driest months in Amboy are June, July and August. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Amboy, Washington, 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) 304 (12.0) 303 (11.9) 225 (8.9) 194 (7.7) 102 (4.0) 90 (3.5) 15 (0.6) 17 (0.7) 132 (5.2) 237 (9.3) 310 (12.2) 322 (12.7)
Average precipitation days (≥ 1 mm) 18 21 19 17 12 9 3 4 9 14 19 20

Monthly sunshine hours in Amboy, Washington, United States §

The sunniest months in Amboy are June, July and August, when the sun shines an average of 11 hours 25 minutes a day. Least sunny months in Amboy: January, February and December receive an average of 3 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Amboy, Washington, 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 85 120 198 232 299 329 381 340 269 208 129 110
Mean daily daylight hours 9h 6m 10h 22m 11h 57m 13h 34m 14h 58m 15h 39m 15h 16m 14h 2m 12h 28m 10h 51m 9h 26m 8h 42m

Solar UV radiation in Amboy, Washington, United States §

Amboy experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 10, 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 Amboy UV Index data.

Average daily maximum UV levels by month for Amboy, Washington, 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 10 10 8 7 5 3 2

Detailed Monthly Weather Insights for Amboy, Washington, United States

Discover in-depth weather details for every month in Amboy. 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 Amboy'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.