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Monthly climate in Grand Island, Nebraska, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Grand Island features a humid continental climate (Dfa).Temperatures typically range between -4 °C (26 °F) and 25 °C (78 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 771 mm (30.3 inches) and receives 86 rainy days on the 1 mm (0.04 inches) threshold annually.Grand Island enjoys an average of 3185 hours of sunshine throughout the year, and daylight varies from 9 hours 16 minutes to 15 hours 3 minutes per day.

Monthly average temperatures in Grand Island, Nebraska, United States §

The warmest months in Grand Island are June, July and August, with daily mean temperatures ranging from 24 to 25 °C (75 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -1 °C (26 - 31 °F) throughout the day. On average each year, Grand Island experiences 104 days above 25 °C (77.0 °F) and 124 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grand Island, Nebraska, 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 15°C
(60°F)		 23°C
(74°F)		 26°C
(80°F)		 31°C
(88°F)		 36°C
(97°F)		 39°C
(103°F)		 38°C
(100°F)		 36°C
(97°F)		 36°C
(96°F)		 33°C
(92°F)		 28°C
(83°F)		 21°C
(70°F)
Mean maximum 13°C
(56°F)		 16°C
(61°F)		 24°C
(75°F)		 28°C
(83°F)		 32°C
(90°F)		 34°C
(94°F)		 36°C
(97°F)		 34°C
(94°F)		 34°C
(94°F)		 30°C
(87°F)		 23°C
(73°F)		 16°C
(61°F)
Average high 2°C
(36°F)		 3°C
(37°F)		 11°C
(52°F)		 16°C
(62°F)		 22°C
(72°F)		 30°C
(86°F)		 31°C
(87°F)		 29°C
(85°F)		 27°C
(81°F)		 17°C
(63°F)		 11°C
(52°F)		 5°C
(42°F)
Daily mean -3°C
(26°F)		 -4°C
(26°F)		 5°C
(41°F)		 10°C
(50°F)		 16°C
(62°F)		 24°C
(75°F)		 25°C
(78°F)		 24°C
(75°F)		 21°C
(69°F)		 11°C
(52°F)		 5°C
(41°F)		 -1°C
(31°F)
Average low -8°C
(18°F)		 -9°C
(16°F)		 -1°C
(31°F)		 3°C
(38°F)		 11°C
(52°F)		 18°C
(64°F)		 20°C
(68°F)		 18°C
(65°F)		 15°C
(58°F)		 5°C
(41°F)		 -1°C
(30°F)		 -6°C
(22°F)
Mean minimum -20°C
(-3°F)		 -20°C
(-4°F)		 -11°C
(12°F)		 -7°C
(20°F)		 2°C
(36°F)		 11°C
(53°F)		 14°C
(58°F)		 11°C
(53°F)		 6°C
(43°F)		 -5°C
(23°F)		 -9°C
(15°F)		 -17°C
(2°F)
Minimum -24°C
(-10°F)		 -33°C
(-27°F)		 -22°C
(-7°F)		 -13°C
(9°F)		 0°C
(33°F)		 9°C
(48°F)		 13°C
(55°F)		 9°C
(48°F)		 4°C
(40°F)		 -8°C
(17°F)		 -15°C
(5°F)		 -23°C
(-9°F)

Compare climate in Grand Island with other places

Compare temperature, precipitation, sunshine, UV index in Grand Island, Nebraska, United States with other places around the world.

Monthly average precipitation in Grand Island, Nebraska, United States §

Grand Island usually has the most precipitation in May, June and October, with an average of 9 rainy days and 107 mm (4.2 inches) of precipitation per month.The driest months in Grand Island are January, February and November. On average, 23 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grand Island, Nebraska, 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) 28 (1.1) 19 (0.7) 86 (3.4) 56 (2.2) 147 (5.8) 89 (3.5) 66 (2.6) 71 (2.8) 59 (2.3) 86 (3.4) 21 (0.8) 42 (1.6)
Average precipitation days (≥ 1 mm) 4 5 9 9 13 8 8 8 6 8 4 4

Monthly sunshine hours in Grand Island, Nebraska, United States §

The sunniest months in Grand Island are June, July and August, when the sun shines an average of 11 hours 27 minutes a day.Least sunny months in Grand Island: January, February and December receive an average of 6 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grand Island, Nebraska, 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 158 215 225 269 278 358 371 323 285 243 228 224
Mean daily daylight hours 9h 36m 10h 38m 11h 58m 13h 20m 14h 29m 15h 3m 14h 44m 13h 42m 12h 24m 11h 3m 9h 52m 9h 16m

Solar UV radiation in Grand Island, Nebraska, United States §

Grand Island experiences the highest level of ultraviolet (UV) radiation in May, June 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 Grand Island UV Index data.

Average daily maximum UV levels by month for Grand Island, Nebraska, 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 11 10 10 8 6 4 3