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Monthly climate in Sidney, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sidney features a humid continental climate (Dfa).Temperatures typically range between -3 °C (26 °F) and 26 °C (79 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 41 °C (105 °F).The average annual precipitation amounts to about 981 mm (38.6 inches) and receives 96 rainy days on the 1 mm (0.04 inches) threshold annually.Sidney enjoys an average of 3085 hours of sunshine throughout the year, and daylight varies from 9 hours 17 minutes to 15 hours 1 minutes per day.

Monthly average temperatures in Sidney, Iowa, United States §

The warmest months in Sidney are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (26 - 33 °F) throughout the day. On average each year, Sidney experiences 110 days above 25 °C (77.0 °F) and 111 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sidney, Iowa, 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)		 23°C
(74°F)		 29°C
(84°F)		 32°C
(89°F)		 38°C
(100°F)		 41°C
(105°F)		 38°C
(100°F)		 36°C
(97°F)		 36°C
(97°F)		 33°C
(91°F)		 28°C
(82°F)		 22°C
(73°F)
Mean maximum 14°C
(57°F)		 17°C
(64°F)		 24°C
(75°F)		 29°C
(85°F)		 33°C
(92°F)		 36°C
(97°F)		 36°C
(98°F)		 34°C
(94°F)		 34°C
(94°F)		 31°C
(88°F)		 22°C
(71°F)		 17°C
(63°F)
Average high 2°C
(35°F)		 3°C
(38°F)		 12°C
(53°F)		 17°C
(63°F)		 23°C
(74°F)		 30°C
(87°F)		 31°C
(88°F)		 29°C
(85°F)		 27°C
(81°F)		 18°C
(64°F)		 11°C
(52°F)		 6°C
(43°F)
Daily mean -3°C
(26°F)		 -3°C
(27°F)		 6°C
(43°F)		 11°C
(52°F)		 18°C
(64°F)		 25°C
(77°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(71°F)		 12°C
(54°F)		 5°C
(41°F)		 0°C
(33°F)
Average low -8°C
(18°F)		 -8°C
(18°F)		 1°C
(34°F)		 5°C
(41°F)		 13°C
(55°F)		 19°C
(67°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(61°F)		 7°C
(45°F)		 -1°C
(31°F)		 -5°C
(24°F)
Mean minimum -23°C
(-9°F)		 -21°C
(-5°F)		 -10°C
(14°F)		 -5°C
(23°F)		 5°C
(41°F)		 13°C
(55°F)		 15°C
(60°F)		 12°C
(54°F)		 8°C
(46°F)		 -3°C
(27°F)		 -10°C
(15°F)		 -14°C
(6°F)
Minimum -32°C
(-24°F)		 -33°C
(-27°F)		 -20°C
(-5°F)		 -9°C
(16°F)		 3°C
(37°F)		 10°C
(50°F)		 14°C
(57°F)		 11°C
(51°F)		 6°C
(43°F)		 -6°C
(21°F)		 -15°C
(5°F)		 -23°C
(-9°F)

Compare climate in Sidney with other places

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

Monthly average precipitation in Sidney, Iowa, United States §

Sidney usually has the most precipitation in May, June and October, with an average of 11 rainy days and 136 mm (5.3 inches) of precipitation per month.The driest months in Sidney are February, November and December. On average, 32 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sidney, Iowa, 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) 34 (1.3) 32 (1.3) 94 (3.7) 62 (2.4) 147 (5.8) 111 (4.4) 91 (3.6) 102 (4.0) 95 (3.7) 151 (5.9) 29 (1.2) 34 (1.3)
Average precipitation days (≥ 1 mm) 5 6 9 10 15 9 7 9 9 10 4 3

Monthly sunshine hours in Sidney, Iowa, United States §

The sunniest months in Sidney are June, July and August, when the sun shines an average of 11 hours 21 minutes a day.Least sunny months in Sidney: January, February and March receive an average of 6 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sidney, Iowa, 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 153 205 210 261 262 348 371 325 279 232 211 222
Mean daily daylight hours 9h 37m 10h 39m 11h 58m 13h 19m 14h 27m 15h 1m 14h 42m 13h 42m 12h 24m 11h 3m 9h 53m 9h 17m

Solar UV radiation in Sidney, Iowa, United States §

Sidney experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High 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 Sidney UV Index data.

Average daily maximum UV levels by month for Sidney, Iowa, 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 6 9 10 10 10 9 8 6 4 3