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Monthly climate in Juliaetta, Idaho, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Juliaetta features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 0 °C (32 °F) and 24 °C (75 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 638 mm (25.1 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually.Juliaetta enjoys an average of 2943 hours of sunshine throughout the year, and daylight varies from 8 hours 37 minutes to 15 hours 45 minutes per day.

Monthly average temperatures in Juliaetta, Idaho, United States §

The warmest months in Juliaetta are June, July and August, with daily mean temperatures ranging from 18 to 24 °C (65 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 0 °C (32 - 33 °F) throughout the day. On average each year, Juliaetta experiences 74 days above 25 °C (77.0 °F) and 102 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Juliaetta, 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 11°C
(53°F)		 16°C
(61°F)		 19°C
(67°F)		 29°C
(84°F)		 32°C
(89°F)		 43°C
(109°F)		 42°C
(107°F)		 40°C
(105°F)		 36°C
(97°F)		 28°C
(83°F)		 19°C
(66°F)		 17°C
(63°F)
Mean maximum 8°C
(47°F)		 13°C
(55°F)		 18°C
(64°F)		 23°C
(74°F)		 29°C
(84°F)		 31°C
(89°F)		 37°C
(99°F)		 39°C
(102°F)		 33°C
(92°F)		 24°C
(76°F)		 17°C
(62°F)		 11°C
(52°F)
Average high 3°C
(37°F)		 4°C
(40°F)		 10°C
(50°F)		 14°C
(58°F)		 20°C
(67°F)		 24°C
(76°F)		 31°C
(87°F)		 30°C
(87°F)		 24°C
(76°F)		 15°C
(60°F)		 8°C
(47°F)		 3°C
(38°F)
Daily mean -0°C
(32°F)		 0°C
(33°F)		 5°C
(41°F)		 9°C
(48°F)		 14°C
(57°F)		 18°C
(65°F)		 24°C
(75°F)		 23°C
(74°F)		 17°C
(64°F)		 10°C
(49°F)		 4°C
(40°F)		 0°C
(33°F)
Average low -3°C
(26°F)		 -3°C
(26°F)		 -0°C
(32°F)		 3°C
(38°F)		 8°C
(47°F)		 12°C
(54°F)		 16°C
(61°F)		 16°C
(61°F)		 11°C
(52°F)		 4°C
(40°F)		 0°C
(33°F)		 -2°C
(28°F)
Mean minimum -12°C
(10°F)		 -13°C
(10°F)		 -9°C
(16°F)		 -3°C
(28°F)		 2°C
(36°F)		 6°C
(43°F)		 11°C
(51°F)		 10°C
(51°F)		 5°C
(41°F)		 -4°C
(24°F)		 -5°C
(23°F)		 -10°C
(14°F)
Minimum -23°C
(-9°F)		 -16°C
(4°F)		 -17°C
(2°F)		 -5°C
(23°F)		 0°C
(32°F)		 5°C
(42°F)		 8°C
(48°F)		 8°C
(47°F)		 3°C
(37°F)		 -13°C
(9°F)		 -7°C
(19°F)		 -16°C
(3°F)

Compare climate in Juliaetta with other places

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

Monthly average precipitation in Juliaetta, Idaho, United States §

Juliaetta usually has the most precipitation in February, November and December, with an average of 15 rainy days and 87 mm (3.4 inches) of precipitation per month.The driest months in Juliaetta are July, August and September. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Juliaetta, 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) 62 (2.5) 106 (4.2) 71 (2.8) 59 (2.3) 53 (2.1) 31 (1.2) 3 (0.1) 9 (0.4) 26 (1.0) 61 (2.4) 73 (2.9) 83 (3.3)
Average precipitation days (≥ 1 mm) 13 18 13 12 8 6 0 2 4 10 13 15

Monthly sunshine hours in Juliaetta, Idaho, United States §

The sunniest months in Juliaetta are June, July and August, when the sun shines an average of 12 hours 2 minutes a day.Least sunny months in Juliaetta: January, February and December receive an average of 3 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Juliaetta, 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 104 129 216 266 327 349 407 351 286 223 165 116
Mean daily daylight hours 9h 2m 10h 20m 11h 57m 13h 37m 15h 2m 15h 45m 15h 21m 14h 5m 12h 28m 10h 49m 9h 22m 8h 37m

Solar UV radiation in Juliaetta, Idaho, United States §

Juliaetta experiences the highest level of ultraviolet (UV) radiation in June, July and August, 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 Juliaetta UV Index data.

Average daily maximum UV levels by month for Juliaetta, 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) 2 4 6 7 9 10 10 9 7 5 3 2