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Monthly climate in Newcastle, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Newcastle features a humid subtropical climate (Cfa).Temperatures typically range between 7 °C (45 °F) and 30 °C (87 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 686 mm (27.0 inches) and receives 71 rainy days on the 1 mm (0.04 inches) threshold annually.Newcastle enjoys an average of 3308 hours of sunshine throughout the year, and daylight varies from 9 hours 58 minutes to 14 hours 18 minutes per day.

Monthly average temperatures in Newcastle, Texas, United States §

The warmest months in Newcastle are June, July and August, with daily mean temperatures ranging from 28 to 30 °C (83 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 10 °C (45 - 50 °F) throughout the day. On average each year, Newcastle experiences 181 days above 25 °C (77.0 °F) and 34 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Newcastle, Texas, 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 28°C
(83°F)		 34°C
(93°F)		 35°C
(95°F)		 37°C
(99°F)		 41°C
(106°F)		 41°C
(105°F)		 43°C
(109°F)		 42°C
(108°F)		 40°C
(103°F)		 38°C
(100°F)		 33°C
(91°F)		 32°C
(89°F)
Mean maximum 25°C
(77°F)		 28°C
(84°F)		 32°C
(89°F)		 35°C
(95°F)		 37°C
(99°F)		 38°C
(101°F)		 41°C
(105°F)		 40°C
(104°F)		 38°C
(101°F)		 35°C
(95°F)		 29°C
(85°F)		 27°C
(81°F)
Average high 14°C
(57°F)		 15°C
(60°F)		 22°C
(72°F)		 25°C
(78°F)		 30°C
(86°F)		 34°C
(94°F)		 36°C
(98°F)		 36°C
(96°F)		 32°C
(89°F)		 26°C
(79°F)		 20°C
(68°F)		 16°C
(62°F)
Daily mean 7°C
(45°F)		 8°C
(47°F)		 15°C
(59°F)		 18°C
(65°F)		 24°C
(75°F)		 28°C
(83°F)		 30°C
(87°F)		 30°C
(86°F)		 26°C
(79°F)		 19°C
(67°F)		 13°C
(55°F)		 10°C
(50°F)
Average low 1°C
(35°F)		 2°C
(37°F)		 9°C
(48°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(73°F)		 25°C
(77°F)		 24°C
(76°F)		 20°C
(69°F)		 13°C
(56°F)		 7°C
(45°F)		 4°C
(39°F)
Mean minimum -8°C
(17°F)		 -9°C
(16°F)		 -2°C
(29°F)		 3°C
(37°F)		 9°C
(48°F)		 18°C
(64°F)		 21°C
(70°F)		 19°C
(67°F)		 13°C
(57°F)		 2°C
(35°F)		 -2°C
(28°F)		 -4°C
(25°F)
Minimum -13°C
(8°F)		 -20°C
(-3°F)		 -8°C
(18°F)		 -1°C
(30°F)		 5°C
(41°F)		 15°C
(60°F)		 19°C
(66°F)		 17°C
(64°F)		 8°C
(47°F)		 -1°C
(30°F)		 -7°C
(19°F)		 -7°C
(20°F)

Compare climate in Newcastle with other places

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

Monthly average precipitation in Newcastle, Texas, United States §

Newcastle usually has the most precipitation in May, September and October, with an average of 7 rainy days and 90 mm (3.6 inches) of precipitation per month.The driest months in Newcastle are January, July and November. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Newcastle, Texas, 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) 37 (1.5) 44 (1.7) 71 (2.8) 63 (2.5) 99 (3.9) 57 (2.2) 23 (0.9) 48 (1.9) 94 (3.7) 78 (3.1) 33 (1.3) 41 (1.6)
Average precipitation days (≥ 1 mm) 4 6 7 5 10 7 6 6 6 6 4 4

Monthly sunshine hours in Newcastle, Texas, United States §

The sunniest months in Newcastle are June, July and August, when the sun shines an average of 11 hours 23 minutes a day.Least sunny months in Newcastle: January, February and December receive an average of 6 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Newcastle, Texas, 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 186 207 254 281 304 347 364 335 282 270 238 235
Mean daily daylight hours 10h 12m 10h 59m 11h 59m 13h 1m 13h 53m 14h 18m 14h 4m 13h 19m 12h 19m 11h 18m 10h 24m 9h 58m

Solar UV radiation in Newcastle, Texas, United States §

Newcastle experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Newcastle UV Index data.

Average daily maximum UV levels by month for Newcastle, Texas, 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) 4 6 8 10 11 11 11 11 10 8 6 4