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Monthly climate in Killeen, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Killeen features a humid subtropical climate (Cfa).Temperatures typically range between 10 °C (50 °F) and 30 °C (86 °F) through the year, but rarely can drop to -14 °C (7 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 963 mm (37.9 inches) and receives 98 rainy days on the 1 mm (0.04 inches) threshold annually.Killeen enjoys an average of 3164 hours of sunshine throughout the year, and daylight varies from 10 hours 9 minutes to 14 hours 7 minutes per day.

Monthly average temperatures in Killeen, Texas, United States §

The warmest months in Killeen are June, July and August, with daily mean temperatures ranging from 28 to 30 °C (82 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 54 °F) throughout the day. On average each year, Killeen experiences 192 days above 25 °C (77.0 °F) and 14 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Killeen, 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 27°C
(81°F)		 31°C
(87°F)		 33°C
(92°F)		 36°C
(97°F)		 37°C
(99°F)		 39°C
(102°F)		 43°C
(109°F)		 40°C
(105°F)		 39°C
(102°F)		 37°C
(98°F)		 31°C
(88°F)		 29°C
(84°F)
Mean maximum 25°C
(77°F)		 28°C
(82°F)		 31°C
(87°F)		 33°C
(92°F)		 35°C
(95°F)		 37°C
(99°F)		 40°C
(104°F)		 39°C
(102°F)		 37°C
(100°F)		 34°C
(94°F)		 29°C
(84°F)		 27°C
(81°F)
Average high 16°C
(61°F)		 17°C
(63°F)		 23°C
(74°F)		 26°C
(79°F)		 30°C
(86°F)		 33°C
(92°F)		 35°C
(96°F)		 36°C
(96°F)		 32°C
(90°F)		 27°C
(81°F)		 21°C
(70°F)		 18°C
(65°F)
Daily mean 10°C
(50°F)		 11°C
(52°F)		 17°C
(63°F)		 20°C
(68°F)		 24°C
(76°F)		 28°C
(82°F)		 30°C
(86°F)		 30°C
(86°F)		 26°C
(80°F)		 21°C
(70°F)		 15°C
(59°F)		 12°C
(54°F)
Average low 5°C
(41°F)		 6°C
(43°F)		 11°C
(53°F)		 14°C
(58°F)		 19°C
(67°F)		 23°C
(73°F)		 24°C
(76°F)		 24°C
(76°F)		 21°C
(71°F)		 16°C
(60°F)		 9°C
(49°F)		 7°C
(44°F)
Mean minimum -5°C
(23°F)		 -4°C
(25°F)		 1°C
(35°F)		 5°C
(42°F)		 12°C
(54°F)		 20°C
(68°F)		 21°C
(71°F)		 21°C
(70°F)		 15°C
(60°F)		 5°C
(41°F)		 0°C
(33°F)		 -1°C
(30°F)
Minimum -10°C
(15°F)		 -14°C
(7°F)		 -5°C
(24°F)		 4°C
(40°F)		 9°C
(49°F)		 17°C
(63°F)		 17°C
(63°F)		 20°C
(67°F)		 10°C
(51°F)		 3°C
(37°F)		 -4°C
(25°F)		 -3°C
(27°F)

Compare climate in Killeen with other places

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

Monthly average precipitation in Killeen, Texas, United States §

Killeen usually has the most precipitation in May, August and October, with an average of 9 rainy days and 127 mm (5.0 inches) of precipitation per month.The driest months in Killeen are January, November and December. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Killeen, 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) 51 (2.0) 63 (2.5) 74 (2.9) 84 (3.3) 177 (7.0) 70 (2.8) 59 (2.3) 91 (3.6) 87 (3.4) 113 (4.5) 39 (1.5) 55 (2.1)
Average precipitation days (≥ 1 mm) 6 9 9 8 13 9 7 7 10 9 5 6

Monthly sunshine hours in Killeen, Texas, United States §

The sunniest months in Killeen are June, July and August, when the sun shines an average of 11 hours 5 minutes a day.Least sunny months in Killeen: January, February and December receive an average of 6 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Killeen, 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 175 171 241 259 282 337 354 328 278 272 236 226
Mean daily daylight hours 10h 22m 11h 5m 12h 0m 12h 56m 13h 44m 14h 7m 13h 54m 13h 12m 12h 18m 11h 22m 10h 33m 10h 9m

Solar UV radiation in Killeen, Texas, United States §

Killeen experiences the highest level of ultraviolet (UV) radiation in June, July and September, 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 Killeen UV Index data.

Average daily maximum UV levels by month for Killeen, 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) 5 7 9 10 11 12 12 11 11 8 6 4