nomadseason

Monthly climate in Delmar, Delaware, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Delmar features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (39 °F) and 27 °C (80 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1318 mm (51.9 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually.Delmar enjoys an average of 3252 hours of sunshine throughout the year, and daylight varies from 9 hours 31 minutes to 14 hours 47 minutes per day.

Monthly average temperatures in Delmar, Delaware, United States §

The warmest months in Delmar are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (75 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 43 °F) throughout the day. On average each year, Delmar experiences 113 days above 25 °C (77.0 °F) and 49 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Delmar, Delaware, 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 21°C
(71°F)		 25°C
(77°F)		 29°C
(85°F)		 32°C
(90°F)		 34°C
(94°F)		 34°C
(94°F)		 37°C
(99°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(94°F)		 26°C
(79°F)		 21°C
(70°F)
Mean maximum 19°C
(67°F)		 21°C
(70°F)		 26°C
(79°F)		 29°C
(84°F)		 33°C
(91°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 33°C
(91°F)		 30°C
(86°F)		 25°C
(76°F)		 19°C
(67°F)
Average high 8°C
(46°F)		 11°C
(52°F)		 13°C
(56°F)		 19°C
(66°F)		 24°C
(75°F)		 28°C
(83°F)		 31°C
(88°F)		 30°C
(86°F)		 27°C
(81°F)		 22°C
(72°F)		 15°C
(59°F)		 10°C
(51°F)
Daily mean 4°C
(39°F)		 6°C
(43°F)		 9°C
(48°F)		 14°C
(57°F)		 19°C
(66°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(78°F)		 23°C
(73°F)		 18°C
(64°F)		 10°C
(50°F)		 6°C
(43°F)
Average low -0°C
(32°F)		 2°C
(35°F)		 4°C
(40°F)		 9°C
(49°F)		 14°C
(58°F)		 19°C
(67°F)		 23°C
(73°F)		 22°C
(72°F)		 19°C
(66°F)		 13°C
(56°F)		 5°C
(41°F)		 2°C
(36°F)
Mean minimum -11°C
(12°F)		 -7°C
(19°F)		 -4°C
(25°F)		 1°C
(35°F)		 7°C
(44°F)		 14°C
(57°F)		 17°C
(64°F)		 17°C
(63°F)		 11°C
(53°F)		 5°C
(41°F)		 -3°C
(26°F)		 -5°C
(22°F)
Minimum -18°C
(0°F)		 -12°C
(10°F)		 -6°C
(21°F)		 -1°C
(30°F)		 4°C
(40°F)		 11°C
(51°F)		 14°C
(57°F)		 15°C
(60°F)		 9°C
(48°F)		 3°C
(38°F)		 -5°C
(23°F)		 -10°C
(14°F)

Compare climate in Delmar with other places

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

Monthly average precipitation in Delmar, Delaware, United States §

Delmar usually has the most precipitation in June, July and August, with an average of 14 rainy days and 150 mm (5.9 inches) of precipitation per month.The driest months in Delmar are January, April and November. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Delmar, Delaware, 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) 66 (2.6) 93 (3.7) 93 (3.7) 87 (3.4) 121 (4.7) 127 (5.0) 158 (6.2) 165 (6.5) 104 (4.1) 122 (4.8) 83 (3.3) 98 (3.8)
Average precipitation days (≥ 1 mm) 8 11 10 11 11 13 14 17 10 9 7 10

Monthly sunshine hours in Delmar, Delaware, United States §

The sunniest months in Delmar are June, July and August, when the sun shines an average of 11 hours 23 minutes a day.Least sunny months in Delmar: January, February and December receive an average of 5 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Delmar, Delaware, 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 160 187 271 289 318 345 366 336 294 260 229 193
Mean daily daylight hours 9h 49m 10h 46m 11h 58m 13h 13m 14h 16m 14h 47m 14h 30m 13h 34m 12h 22m 11h 8m 10h 4m 9h 31m

Solar UV radiation in Delmar, Delaware, United States §

Delmar experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure.January, February 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 Delmar UV Index data.

Average daily maximum UV levels by month for Delmar, Delaware, 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 10 8 7 5 3