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Monthly climate in Grassflat, Pennsylvania, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Grassflat 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 -26 °C (-14 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1273 mm (50.1 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Grassflat enjoys an average of 2675 hours of sunshine throughout the year, and daylight varies from 9 hours 15 minutes to 15 hours 3 minutes per day.

Monthly average temperatures in Grassflat, Pennsylvania, United States §

The warmest months in Grassflat are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (68 - 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, Grassflat experiences 65 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 Grassflat, 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 17°C
(63°F)		 22°C
(71°F)		 21°C
(70°F)		 27°C
(81°F)		 30°C
(86°F)		 35°C
(94°F)		 35°C
(95°F)		 33°C
(93°F)		 32°C
(90°F)		 28°C
(83°F)		 23°C
(73°F)		 18°C
(65°F)
Mean maximum 13°C
(55°F)		 16°C
(61°F)		 19°C
(67°F)		 24°C
(76°F)		 29°C
(85°F)		 31°C
(88°F)		 32°C
(89°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(79°F)		 19°C
(66°F)		 13°C
(55°F)
Average high 1°C
(34°F)		 4°C
(39°F)		 8°C
(46°F)		 14°C
(57°F)		 20°C
(68°F)		 25°C
(76°F)		 28°C
(82°F)		 27°C
(80°F)		 23°C
(74°F)		 17°C
(63°F)		 8°C
(47°F)		 4°C
(39°F)
Daily mean -3°C
(28°F)		 -1°C
(31°F)		 3°C
(38°F)		 9°C
(48°F)		 15°C
(59°F)		 20°C
(68°F)		 23°C
(73°F)		 22°C
(71°F)		 18°C
(64°F)		 12°C
(54°F)		 4°C
(39°F)		 0°C
(33°F)
Average low -6°C
(21°F)		 -5°C
(23°F)		 -1°C
(30°F)		 4°C
(40°F)		 10°C
(50°F)		 14°C
(58°F)		 18°C
(64°F)		 17°C
(63°F)		 13°C
(56°F)		 8°C
(46°F)		 -0°C
(32°F)		 -3°C
(27°F)
Mean minimum -19°C
(-2°F)		 -17°C
(1°F)		 -11°C
(12°F)		 -4°C
(26°F)		 1°C
(33°F)		 8°C
(46°F)		 11°C
(53°F)		 10°C
(51°F)		 5°C
(42°F)		 -1°C
(30°F)		 -9°C
(16°F)		 -11°C
(12°F)
Minimum -26°C
(-14°F)		 -24°C
(-12°F)		 -19°C
(-1°F)		 -5°C
(23°F)		 -3°C
(27°F)		 3°C
(38°F)		 10°C
(50°F)		 10°C
(50°F)		 1°C
(33°F)		 -4°C
(26°F)		 -16°C
(3°F)		 -15°C
(5°F)

Compare climate in Grassflat with other places

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

Monthly average precipitation in Grassflat, Pennsylvania, United States §

Grassflat usually has the most precipitation in May, July and September, with an average of 14 rainy days and 131 mm (5.1 inches) of precipitation per month.The driest months in Grassflat 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 Grassflat, 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) 73 (2.9) 104 (4.1) 88 (3.5) 111 (4.4) 142 (5.6) 107 (4.2) 128 (5.0) 106 (4.2) 122 (4.8) 114 (4.5) 84 (3.3) 92 (3.6)
Average precipitation days (≥ 1 mm) 10 13 13 15 16 15 15 14 11 13 9 11

Monthly sunshine hours in Grassflat, Pennsylvania, United States §

The sunniest months in Grassflat are June, July and August, when the sun shines an average of 10 hours 10 minutes a day.Least sunny months in Grassflat: January, February and December receive an average of 4 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grassflat, 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 110 145 216 229 257 303 325 307 269 209 167 133
Mean daily daylight hours 9h 35m 10h 38m 11h 58m 13h 20m 14h 29m 15h 3m 14h 44m 13h 43m 12h 24m 11h 3m 9h 52m 9h 15m

Solar UV radiation in Grassflat, Pennsylvania, United States §

Grassflat 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 Grassflat UV Index data.

Average daily maximum UV levels by month for Grassflat, 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 3