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Monthly climate in Simpson, Pennsylvania, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Simpson features a humid continental climate (Dfb).Temperatures typically range between -3 °C (28 °F) and 23 °C (73 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1205 mm (47.4 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually.Simpson enjoys an average of 2789 hours of sunshine throughout the year, and daylight varies from 9 hours 12 minutes to 15 hours 7 minutes per day.

Monthly average temperatures in Simpson, Pennsylvania, United States §

The warmest months in Simpson are June, July and August, with daily mean temperatures ranging from 19 to 23 °C (67 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (28 - 33 °F) throughout the day. On average each year, Simpson experiences 62 days above 25 °C (77.0 °F) and 110 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Simpson, Pennsylvania, 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 16°C
(61°F)		 22°C
(72°F)		 22°C
(72°F)		 27°C
(80°F)		 31°C
(88°F)		 33°C
(92°F)		 34°C
(94°F)		 32°C
(91°F)		 32°C
(89°F)		 28°C
(83°F)		 23°C
(73°F)		 16°C
(60°F)
Mean maximum 12°C
(54°F)		 16°C
(61°F)		 19°C
(66°F)		 24°C
(75°F)		 29°C
(85°F)		 31°C
(88°F)		 33°C
(92°F)		 31°C
(88°F)		 30°C
(86°F)		 26°C
(79°F)		 20°C
(68°F)		 13°C
(56°F)
Average high 1°C
(34°F)		 3°C
(38°F)		 7°C
(45°F)		 13°C
(56°F)		 19°C
(67°F)		 24°C
(76°F)		 27°C
(82°F)		 26°C
(79°F)		 23°C
(73°F)		 17°C
(62°F)		 8°C
(47°F)		 3°C
(38°F)
Daily mean -3°C
(28°F)		 -1°C
(31°F)		 2°C
(36°F)		 8°C
(47°F)		 15°C
(58°F)		 19°C
(67°F)		 23°C
(73°F)		 21°C
(71°F)		 18°C
(64°F)		 12°C
(54°F)		 4°C
(40°F)		 0°C
(33°F)
Average low -6°C
(21°F)		 -5°C
(23°F)		 -2°C
(28°F)		 4°C
(39°F)		 10°C
(50°F)		 14°C
(58°F)		 18°C
(65°F)		 17°C
(63°F)		 13°C
(56°F)		 8°C
(47°F)		 0°C
(32°F)		 -3°C
(27°F)
Mean minimum -18°C
(-1°F)		 -17°C
(2°F)		 -13°C
(10°F)		 -3°C
(27°F)		 2°C
(35°F)		 9°C
(48°F)		 13°C
(55°F)		 11°C
(52°F)		 5°C
(42°F)		 0°C
(32°F)		 -9°C
(15°F)		 -13°C
(10°F)
Minimum -25°C
(-13°F)		 -24°C
(-12°F)		 -18°C
(1°F)		 -6°C
(22°F)		 -2°C
(28°F)		 5°C
(42°F)		 11°C
(52°F)		 9°C
(49°F)		 2°C
(35°F)		 -1°C
(30°F)		 -17°C
(1°F)		 -16°C
(3°F)

Compare climate in Simpson with other places

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

Monthly average precipitation in Simpson, Pennsylvania, United States §

Simpson usually has the most precipitation in May, July and October, with an average of 13 rainy days and 123 mm (4.9 inches) of precipitation per month.The driest months in Simpson are January, March and November. On average, 82 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Simpson, Pennsylvania, 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) 70 (2.8) 95 (3.7) 88 (3.5) 104 (4.1) 125 (4.9) 92 (3.6) 114 (4.5) 113 (4.5) 97 (3.8) 131 (5.1) 86 (3.4) 89 (3.5)
Average precipitation days (≥ 1 mm) 9 13 11 13 14 12 14 13 9 12 10 12

Monthly sunshine hours in Simpson, Pennsylvania, United States §

The sunniest months in Simpson are June, July and August, when the sun shines an average of 10 hours 26 minutes a day.Least sunny months in Simpson: January, February and December receive an average of 4 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Simpson, Pennsylvania, 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 126 162 225 232 261 313 334 312 274 214 180 150
Mean daily daylight hours 9h 32m 10h 36m 11h 58m 13h 21m 14h 31m 15h 7m 14h 47m 13h 45m 12h 25m 11h 2m 9h 49m 9h 12m

Solar UV radiation in Simpson, Pennsylvania, United States §

Simpson 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 Low / 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 Simpson UV Index data.

Average daily maximum UV levels by month for Simpson, Pennsylvania, 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 6 9 10 10 10 9 8 6 4 2