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Monthly climate in Roby, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Roby features a cold semi-arid climate (BSk).Temperatures typically range between 7 °C (45 °F) and 29 °C (85 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 43 °C (110 °F).The average annual precipitation amounts to about 496 mm (19.5 inches) and receives 56 rainy days on the 1 mm (0.04 inches) threshold annually.Roby enjoys an average of 3443 hours of sunshine throughout the year, and daylight varies from 10 hours 1 minutes to 14 hours 15 minutes per day.

Monthly average temperatures in Roby, Texas, United States §

The warmest months in Roby are June, July and August, with daily mean temperatures ranging from 28 to 29 °C (82 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (45 - 49 °F) throughout the day. On average each year, Roby experiences 179 days above 25 °C (77.0 °F) and 39 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Roby, 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
(82°F)		 33°C
(91°F)		 34°C
(94°F)		 37°C
(100°F)		 42°C
(107°F)		 41°C
(106°F)		 43°C
(110°F)		 43°C
(110°F)		 39°C
(102°F)		 38°C
(100°F)		 32°C
(89°F)		 30°C
(87°F)
Mean maximum 24°C
(76°F)		 27°C
(82°F)		 32°C
(90°F)		 35°C
(96°F)		 38°C
(100°F)		 39°C
(103°F)		 40°C
(105°F)		 39°C
(103°F)		 37°C
(100°F)		 34°C
(94°F)		 28°C
(84°F)		 26°C
(79°F)
Average high 14°C
(57°F)		 16°C
(60°F)		 22°C
(72°F)		 26°C
(79°F)		 31°C
(87°F)		 34°C
(93°F)		 35°C
(96°F)		 35°C
(95°F)		 31°C
(88°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
(82°F)		 29°C
(85°F)		 29°C
(84°F)		 25°C
(77°F)		 19°C
(66°F)		 12°C
(54°F)		 9°C
(49°F)
Average low 1°C
(34°F)		 2°C
(35°F)		 8°C
(47°F)		 11°C
(53°F)		 17°C
(63°F)		 21°C
(71°F)		 23°C
(74°F)		 23°C
(74°F)		 19°C
(67°F)		 12°C
(55°F)		 6°C
(43°F)		 3°C
(38°F)
Mean minimum -9°C
(17°F)		 -9°C
(16°F)		 -3°C
(28°F)		 2°C
(36°F)		 8°C
(47°F)		 17°C
(63°F)		 19°C
(67°F)		 18°C
(65°F)		 13°C
(55°F)		 1°C
(34°F)		 -2°C
(28°F)		 -4°C
(25°F)
Minimum -12°C
(10°F)		 -16°C
(3°F)		 -9°C
(17°F)		 -1°C
(31°F)		 5°C
(42°F)		 13°C
(56°F)		 16°C
(61°F)		 15°C
(59°F)		 7°C
(45°F)		 -3°C
(26°F)		 -7°C
(20°F)		 -6°C
(21°F)

Compare climate in Roby with other places

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

Monthly average precipitation in Roby, Texas, United States §

Roby usually has the most precipitation in April, May and October, with an average of 6 rainy days and 70 mm (2.7 inches) of precipitation per month.The driest months in Roby are February, July and December. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Roby, 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) 22 (0.9) 22 (0.9) 41 (1.6) 62 (2.5) 85 (3.3) 52 (2.1) 22 (0.9) 26 (1.0) 55 (2.2) 61 (2.4) 26 (1.0) 20 (0.8)
Average precipitation days (≥ 1 mm) 2 3 4 4 9 8 4 5 6 5 3 3

Monthly sunshine hours in Roby, Texas, United States §

The sunniest months in Roby are June, July and August, when the sun shines an average of 11 hours 41 minutes a day.Least sunny months in Roby: January, February and November receive an average of 7 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Roby, 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 196 219 269 289 327 356 372 347 294 275 245 249
Mean daily daylight hours 10h 15m 11h 1m 12h 0m 13h 0m 13h 50m 14h 15m 14h 1m 13h 17m 12h 19m 11h 19m 10h 27m 10h 1m

Solar UV radiation in Roby, Texas, United States §

Roby experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, November 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 Roby UV Index data.

Average daily maximum UV levels by month for Roby, 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 7 9 11 11 12 12 11 10 8 6 4