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Monthly climate in Heyburn, Idaho, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Heyburn features a cold semi-arid climate (BSk). Temperatures typically range between -2 °C (29 °F) and 25 °C (77 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 371 mm (14.6 inches) and receives 81 rainy days on the 1 mm (0.04 inches) threshold annually. Heyburn enjoys an average of 3264 hours of sunshine throughout the year, and daylight varies from 9 hours 5 minutes to 15 hours 14 minutes per day.

Monthly average temperatures in Heyburn, Idaho, United States §

The warmest months in Heyburn are June, July and August, with daily mean temperatures ranging from 20 to 25 °C (68 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (29 - 33 °F) throughout the day. On average each year, Heyburn experiences 94 days above 25 °C (77.0 °F) and 123 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heyburn, 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 16°C
(61°F)		 17°C
(62°F)		 25°C
(77°F)		 29°C
(84°F)		 35°C
(95°F)		 38°C
(101°F)		 39°C
(102°F)		 40°C
(104°F)		 39°C
(102°F)		 29°C
(85°F)		 23°C
(74°F)		 15°C
(60°F)
Mean maximum 9°C
(49°F)		 13°C
(55°F)		 20°C
(68°F)		 26°C
(79°F)		 31°C
(88°F)		 32°C
(89°F)		 38°C
(100°F)		 38°C
(100°F)		 37°C
(98°F)		 26°C
(79°F)		 19°C
(66°F)		 11°C
(51°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 11°C
(53°F)		 16°C
(60°F)		 21°C
(70°F)		 28°C
(82°F)		 33°C
(93°F)		 32°C
(90°F)		 26°C
(80°F)		 16°C
(61°F)		 10°C
(50°F)		 3°C
(38°F)
Daily mean -2°C
(29°F)		 0°C
(33°F)		 5°C
(41°F)		 9°C
(48°F)		 14°C
(57°F)		 20°C
(68°F)		 25°C
(77°F)		 23°C
(75°F)		 18°C
(64°F)		 9°C
(48°F)		 4°C
(39°F)		 -1°C
(30°F)
Average low -5°C
(23°F)		 -4°C
(25°F)		 -1°C
(31°F)		 2°C
(36°F)		 7°C
(44°F)		 11°C
(53°F)		 16°C
(61°F)		 14°C
(58°F)		 9°C
(49°F)		 2°C
(37°F)		 -1°C
(30°F)		 -5°C
(24°F)
Mean minimum -16°C
(4°F)		 -13°C
(9°F)		 -7°C
(19°F)		 -4°C
(25°F)		 -1°C
(31°F)		 4°C
(39°F)		 10°C
(50°F)		 8°C
(48°F)		 2°C
(35°F)		 -7°C
(20°F)		 -8°C
(18°F)		 -11°C
(12°F)
Minimum -28°C
(-18°F)		 -17°C
(2°F)		 -11°C
(13°F)		 -6°C
(21°F)		 -3°C
(27°F)		 2°C
(36°F)		 8°C
(47°F)		 5°C
(41°F)		 0°C
(32°F)		 -14°C
(8°F)		 -10°C
(14°F)		 -14°C
(8°F)

Compare climate in Heyburn with other places

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

Monthly average precipitation in Heyburn, Idaho, United States §

Heyburn usually has the most precipitation in January, February and May, with an average of 10 rainy days and 46 mm (1.8 inches) of precipitation per month. The driest months in Heyburn are July, August and September. On average, 14 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heyburn, 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) 41 (1.6) 49 (1.9) 38 (1.5) 36 (1.4) 47 (1.8) 21 (0.8) 8 (0.3) 15 (0.6) 20 (0.8) 28 (1.1) 30 (1.2) 38 (1.5)
Average precipitation days (≥ 1 mm) 9 11 9 8 10 3 2 4 3 5 8 9

Monthly sunshine hours in Heyburn, Idaho, United States §

The sunniest months in Heyburn are June, July and August, when the sun shines an average of 12 hours 10 minutes a day. Least sunny months in Heyburn: January, February and December receive an average of 5 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heyburn, 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 132 183 264 285 337 376 390 353 308 262 200 169
Mean daily daylight hours 9h 26m 10h 33m 11h 58m 13h 25m 14h 38m 15h 14m 14h 54m 13h 48m 12h 25m 10h 59m 9h 43m 9h 5m

Solar UV radiation in Heyburn, Idaho, United States §

Heyburn 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 Heyburn UV Index data.

Average daily maximum UV levels by month for Heyburn, 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

Detailed Monthly Weather Insights for Heyburn, Idaho, United States

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