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Monthly climate in Black Rock, Arkansas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Black Rock features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (40 °F) and 28 °C (82 °F) through the year, but rarely can drop to -21 °C (-5 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1395 mm (54.9 inches) and receives 124 rainy days on the 1 mm (0.04 inches) threshold annually.Black Rock enjoys an average of 3057 hours of sunshine throughout the year, and daylight varies from 9 hours 43 minutes to 14 hours 33 minutes per day.

Monthly average temperatures in Black Rock, Arkansas, United States §

The warmest months in Black Rock are June, July and August, with daily mean temperatures ranging from 25 to 28 °C (78 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 45 °F) throughout the day. On average each year, Black Rock experiences 135 days above 25 °C (77.0 °F) and 50 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Black Rock, Arkansas, 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 22°C
(72°F)		 26°C
(79°F)		 29°C
(84°F)		 31°C
(87°F)		 34°C
(93°F)		 39°C
(102°F)		 37°C
(99°F)		 37°C
(98°F)		 35°C
(96°F)		 35°C
(95°F)		 29°C
(84°F)		 25°C
(77°F)
Mean maximum 19°C
(67°F)		 23°C
(73°F)		 26°C
(78°F)		 28°C
(84°F)		 32°C
(89°F)		 34°C
(94°F)		 36°C
(96°F)		 35°C
(96°F)		 33°C
(93°F)		 32°C
(89°F)		 24°C
(75°F)		 22°C
(71°F)
Average high 9°C
(48°F)		 11°C
(52°F)		 17°C
(63°F)		 20°C
(69°F)		 26°C
(79°F)		 30°C
(87°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(85°F)		 23°C
(73°F)		 15°C
(59°F)		 12°C
(54°F)
Daily mean 4°C
(40°F)		 6°C
(43°F)		 12°C
(53°F)		 15°C
(59°F)		 21°C
(70°F)		 25°C
(78°F)		 28°C
(82°F)		 26°C
(79°F)		 24°C
(75°F)		 17°C
(63°F)		 9°C
(49°F)		 7°C
(45°F)
Average low -0°C
(32°F)		 1°C
(34°F)		 6°C
(44°F)		 10°C
(50°F)		 16°C
(62°F)		 21°C
(70°F)		 23°C
(74°F)		 22°C
(71°F)		 19°C
(66°F)		 12°C
(53°F)		 4°C
(39°F)		 2°C
(36°F)
Mean minimum -10°C
(14°F)		 -10°C
(14°F)		 -4°C
(25°F)		 0°C
(33°F)		 8°C
(47°F)		 16°C
(60°F)		 18°C
(65°F)		 16°C
(61°F)		 11°C
(51°F)		 1°C
(34°F)		 -5°C
(24°F)		 -7°C
(20°F)
Minimum -15°C
(5°F)		 -21°C
(-5°F)		 -9°C
(17°F)		 -3°C
(27°F)		 4°C
(39°F)		 12°C
(53°F)		 16°C
(61°F)		 15°C
(59°F)		 8°C
(47°F)		 -3°C
(27°F)		 -10°C
(14°F)		 -11°C
(12°F)

Compare climate in Black Rock with other places

Compare temperature, precipitation, sunshine, UV index in Black Rock, Arkansas, United States with other places around the world.

Monthly average precipitation in Black Rock, Arkansas, United States §

Black Rock usually has the most precipitation in February, April and May, with an average of 12 rainy days and 156 mm (6.2 inches) of precipitation per month.The driest months in Black Rock are January, September and November. On average, 86 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Black Rock, Arkansas, 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) 93 (3.7) 149 (5.9) 146 (5.8) 167 (6.6) 153 (6.0) 93 (3.7) 97 (3.8) 113 (4.4) 78 (3.1) 115 (4.5) 87 (3.4) 105 (4.1)
Average precipitation days (≥ 1 mm) 9 12 14 12 13 10 10 12 6 10 8 8

Monthly sunshine hours in Black Rock, Arkansas, United States §

The sunniest months in Black Rock are June, July and August, when the sun shines an average of 10 hours 54 minutes a day.Least sunny months in Black Rock: January, February and December receive an average of 5 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Black Rock, Arkansas, 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 146 176 212 251 299 331 354 318 288 251 225 201
Mean daily daylight hours 10h 0m 10h 52m 11h 59m 13h 7m 14h 5m 14h 33m 14h 18m 13h 27m 12h 21m 11h 13m 10h 13m 9h 43m

Solar UV radiation in Black Rock, Arkansas, United States §

Black Rock experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 5. For more detailed information, check out our hourly Black Rock UV Index data.

Average daily maximum UV levels by month for Black Rock, Arkansas, 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 6 8 10 10 11 11 10 9 7 5 3