Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Union City features a humid continental climate (Dfb).Temperatures typically range between -3 °C (26 °F) and 22 °C (71 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 1519 mm (59.8 inches) and receives 187 rainy days on the 1 mm (0.04 inches) threshold annually.Union City enjoys an average of 2650 hours of sunshine throughout the year, and daylight varies from 9 hours 10 minutes to 15 hours 9 minutes per day.
The warmest months in Union City are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (26 - 32 °F) throughout the day. On average each year, Union City experiences 54 days above 25 °C (77.0 °F) and 114 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 18°C (64°F) | 21°C (71°F) | 22°C (72°F) | 27°C (81°F) | 31°C (88°F) | 32°C (89°F) | 33°C (91°F) | 31°C (88°F) | 31°C (88°F) | 29°C (85°F) | 24°C (76°F) | 17°C (62°F) |
Mean maximum | 12°C (54°F) | 16°C (60°F) | 20°C (68°F) | 25°C (77°F) | 30°C (86°F) | 30°C (87°F) | 31°C (88°F) | 30°C (86°F) | 29°C (85°F) | 27°C (80°F) | 19°C (66°F) | 13°C (56°F) |
Average high | 0°C (33°F) | 2°C (36°F) | 6°C (44°F) | 12°C (54°F) | 19°C (67°F) | 24°C (75°F) | 26°C (79°F) | 25°C (77°F) | 22°C (73°F) | 16°C (61°F) | 7°C (45°F) | 3°C (37°F) |
Daily mean | -3°C (26°F) | -2°C (29°F) | 2°C (35°F) | 7°C (46°F) | 14°C (58°F) | 19°C (67°F) | 22°C (71°F) | 20°C (69°F) | 17°C (64°F) | 12°C (53°F) | 3°C (39°F) | -0°C (32°F) |
Average low | -7°C (20°F) | -6°C (22°F) | -3°C (27°F) | 3°C (38°F) | 10°C (50°F) | 14°C (58°F) | 17°C (64°F) | 16°C (62°F) | 13°C (56°F) | 8°C (46°F) | -0°C (32°F) | -3°C (26°F) |
Mean minimum | -18°C (-0°F) | -17°C (2°F) | -13°C (8°F) | -5°C (24°F) | 1°C (33°F) | 8°C (48°F) | 12°C (54°F) | 10°C (50°F) | 6°C (43°F) | 1°C (34°F) | -8°C (17°F) | -12°C (11°F) |
Minimum | -22°C (-7°F) | -22°C (-7°F) | -18°C (0°F) | -7°C (20°F) | -3°C (28°F) | 4°C (40°F) | 11°C (52°F) | 7°C (45°F) | 3°C (38°F) | -0°C (32°F) | -15°C (6°F) | -17°C (2°F) |
Compare temperature, precipitation, sunshine, UV index in Union City, Pennsylvania, United States with other places around the world.
Union City usually has the most precipitation in May, June and July, with an average of 15 rainy days and 150 mm (5.9 inches) of precipitation per month.The driest months in Union City are January, March and September. On average, 103 mm (4.1 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 108 (4.2) | 113 (4.4) | 108 (4.2) | 134 (5.3) | 141 (5.6) | 150 (5.9) | 160 (6.3) | 121 (4.7) | 94 (3.7) | 138 (5.4) | 130 (5.1) | 123 (4.8) |
Average precipitation days (≥ 1 mm) | 15 | 18 | 15 | 15 | 16 | 13 | 16 | 16 | 11 | 17 | 17 | 18 |
The sunniest months in Union City are June, July and August, when the sun shines an average of 10 hours 40 minutes a day.Least sunny months in Union City: January, February and December receive an average of 3 hours 29 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 82 | 131 | 216 | 235 | 269 | 326 | 330 | 324 | 283 | 204 | 143 | 103 |
Mean daily daylight hours | 9h 30m | 10h 35m | 11h 58m | 13h 22m | 14h 34m | 15h 9m | 14h 50m | 13h 46m | 12h 25m | 11h 1m | 9h 47m | 9h 10m |
Union City 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 Union City UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 8 | 10 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |