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Monthly climate in Ashton, Idaho, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ashton features a humid continental climate (Dfb).Temperatures typically range between -6 °C (21 °F) and 20 °C (69 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 594 mm (23.4 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually.Ashton enjoys an average of 3176 hours of sunshine throughout the year, and daylight varies from 8 hours 55 minutes to 15 hours 25 minutes per day.

Monthly average temperatures in Ashton, Idaho, United States §

The warmest months in Ashton are June, July and August, with daily mean temperatures ranging from 15 to 20 °C (60 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -5 °C (21 - 24 °F) throughout the day. On average each year, Ashton experiences 58 days above 25 °C (77.0 °F) and 164 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ashton, Idaho, 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 6°C
(44°F)		 9°C
(49°F)		 16°C
(61°F)		 22°C
(72°F)		 27°C
(80°F)		 31°C
(89°F)		 33°C
(91°F)		 34°C
(93°F)		 32°C
(91°F)		 24°C
(76°F)		 19°C
(67°F)		 9°C
(49°F)
Mean maximum 4°C
(40°F)		 6°C
(43°F)		 13°C
(56°F)		 19°C
(66°F)		 24°C
(76°F)		 26°C
(80°F)		 32°C
(90°F)		 32°C
(90°F)		 30°C
(87°F)		 20°C
(69°F)		 13°C
(56°F)		 6°C
(43°F)
Average high -2°C
(28°F)		 -1°C
(31°F)		 5°C
(42°F)		 10°C
(50°F)		 16°C
(62°F)		 22°C
(72°F)		 28°C
(83°F)		 27°C
(81°F)		 22°C
(71°F)		 11°C
(53°F)		 5°C
(41°F)		 -1°C
(30°F)
Daily mean -6°C
(21°F)		 -5°C
(24°F)		 1°C
(33°F)		 4°C
(40°F)		 10°C
(50°F)		 15°C
(60°F)		 20°C
(69°F)		 19°C
(67°F)		 14°C
(57°F)		 5°C
(42°F)		 -0°C
(32°F)		 -6°C
(22°F)
Average low -10°C
(15°F)		 -8°C
(17°F)		 -4°C
(26°F)		 -1°C
(30°F)		 3°C
(38°F)		 8°C
(47°F)		 12°C
(53°F)		 11°C
(52°F)		 6°C
(44°F)		 -0°C
(32°F)		 -5°C
(23°F)		 -10°C
(14°F)
Mean minimum -20°C
(-4°F)		 -17°C
(2°F)		 -14°C
(8°F)		 -10°C
(14°F)		 -3°C
(27°F)		 1°C
(34°F)		 6°C
(43°F)		 5°C
(42°F)		 -1°C
(30°F)		 -10°C
(14°F)		 -14°C
(6°F)		 -19°C
(-2°F)
Minimum -24°C
(-11°F)		 -20°C
(-3°F)		 -23°C
(-10°F)		 -16°C
(3°F)		 -5°C
(24°F)		 -1°C
(30°F)		 3°C
(37°F)		 2°C
(35°F)		 -2°C
(28°F)		 -19°C
(-2°F)		 -17°C
(1°F)		 -22°C
(-8°F)

Compare climate in Ashton with other places

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

Monthly average precipitation in Ashton, Idaho, United States §

Ashton usually has the most precipitation in February, April and May, with an average of 13 rainy days and 67 mm (2.6 inches) of precipitation per month.The driest months in Ashton are July, August and September. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ashton, Idaho, 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) 63 (2.5) 72 (2.9) 50 (2.0) 64 (2.5) 64 (2.5) 45 (1.8) 12 (0.5) 21 (0.8) 38 (1.5) 49 (1.9) 54 (2.1) 61 (2.4)
Average precipitation days (≥ 1 mm) 12 15 11 13 11 7 4 4 5 8 11 13

Monthly sunshine hours in Ashton, Idaho, United States §

The sunniest months in Ashton are June, July and August, when the sun shines an average of 12 hours 13 minutes a day.Least sunny months in Ashton: January, February and December receive an average of 4 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ashton, Idaho, 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 121 161 253 283 337 368 397 358 300 256 187 151
Mean daily daylight hours 9h 18m 10h 28m 11h 57m 13h 29m 14h 46m 15h 25m 15h 4m 13h 54m 12h 26m 10h 56m 9h 36m 8h 55m

Solar UV radiation in Ashton, Idaho, United States §

Ashton experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Ashton UV Index data.

Average daily maximum UV levels by month for Ashton, Idaho, 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) 3 5 7 8 10 11 11 10 9 6 4 3