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Monthly climate in Timonium, Maryland, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Timonium features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (36 °F) and 26 °C (79 °F) through the year, but rarely can drop to -16 °C (4 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 1342 mm (52.8 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually. Timonium enjoys an average of 3014 hours of sunshine throughout the year, and daylight varies from 9 hours 24 minutes to 14 hours 54 minutes per day.

Monthly average temperatures in Timonium, Maryland, United States §

The warmest months in Timonium are June, July and August, with daily mean temperatures ranging from 23 to 26 °C (74 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 4 °C (36 - 40 °F) throughout the day. On average each year, Timonium experiences 99 days above 25 °C (77.0 °F) and 61 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Timonium, Maryland, 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 19°C
(66°F)		 26°C
(78°F)		 27°C
(82°F)		 30°C
(87°F)		 33°C
(92°F)		 35°C
(95°F)		 37°C
(100°F)		 34°C
(94°F)		 33°C
(92°F)		 34°C
(94°F)		 23°C
(74°F)		 18°C
(65°F)
Mean maximum 16°C
(62°F)		 20°C
(68°F)		 24°C
(75°F)		 28°C
(82°F)		 32°C
(90°F)		 34°C
(93°F)		 35°C
(96°F)		 33°C
(92°F)		 32°C
(89°F)		 29°C
(84°F)		 23°C
(73°F)		 16°C
(62°F)
Average high 5°C
(42°F)		 8°C
(47°F)		 12°C
(53°F)		 17°C
(64°F)		 23°C
(73°F)		 28°C
(82°F)		 31°C
(87°F)		 29°C
(84°F)		 26°C
(78°F)		 20°C
(69°F)		 12°C
(54°F)		 8°C
(46°F)
Daily mean 2°C
(36°F)		 4°C
(39°F)		 7°C
(45°F)		 13°C
(55°F)		 18°C
(65°F)		 23°C
(74°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(71°F)		 16°C
(61°F)		 8°C
(46°F)		 4°C
(40°F)
Average low -2°C
(30°F)		 -0°C
(32°F)		 3°C
(37°F)		 8°C
(47°F)		 14°C
(57°F)		 18°C
(65°F)		 22°C
(71°F)		 21°C
(70°F)		 17°C
(63°F)		 12°C
(54°F)		 3°C
(39°F)		 1°C
(33°F)
Mean minimum -10°C
(14°F)		 -9°C
(16°F)		 -6°C
(22°F)		 0°C
(33°F)		 5°C
(42°F)		 12°C
(55°F)		 17°C
(63°F)		 16°C
(61°F)		 10°C
(51°F)		 4°C
(40°F)		 -4°C
(25°F)		 -7°C
(20°F)
Minimum -14°C
(6°F)		 -16°C
(4°F)		 -10°C
(14°F)		 -2°C
(30°F)		 2°C
(35°F)		 9°C
(48°F)		 15°C
(58°F)		 15°C
(59°F)		 6°C
(44°F)		 2°C
(35°F)		 -5°C
(23°F)		 -11°C
(12°F)

Compare climate in Timonium with other places

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

Monthly average precipitation in Timonium, Maryland, United States §

Timonium usually has the most precipitation in May, July and August, with an average of 14 rainy days and 150 mm (5.9 inches) of precipitation per month. The driest months in Timonium are January, March and November. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Timonium, Maryland, 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) 63 (2.5) 98 (3.9) 94 (3.7) 106 (4.2) 145 (5.7) 117 (4.6) 151 (6.0) 154 (6.1) 116 (4.6) 109 (4.3) 88 (3.5) 102 (4.0)
Average precipitation days (≥ 1 mm) 8 11 10 11 14 14 13 16 10 10 7 9

Monthly sunshine hours in Timonium, Maryland, United States §

The sunniest months in Timonium are June, July and August, when the sun shines an average of 10 hours 50 minutes a day. Least sunny months in Timonium: January, February and December receive an average of 5 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Timonium, Maryland, 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 142 177 250 252 278 326 353 317 273 237 220 184
Mean daily daylight hours 9h 43m 10h 43m 11h 58m 13h 16m 14h 21m 14h 54m 14h 36m 13h 38m 12h 23m 11h 6m 9h 59m 9h 24m

Solar UV radiation in Timonium, Maryland, United States §

Timonium experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High 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 Timonium UV Index data.

Average daily maximum UV levels by month for Timonium, Maryland, 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 7 9 10 10 10 9 8 7 4 3

Detailed Monthly Weather Insights for Timonium, Maryland, United States

Discover in-depth weather details for every month in Timonium. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Timonium's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.