Union, South Carolina Climate
United States
Pop. 8,045 Elev. 197 m / 646 ft
TZ: America/New_York (UTC-4) ·
Union sees warm summers peaking at 91°F (33°C) in July, and cold winters that bottom out around 31°F (-1°C) in January. Humidity pushes the summer feels-like temperature to around 112°F (44°C). Precipitation occurs on roughly 61 days per year (42.2 in / 1071 mm total), with snow on 1 days and 4 in (93 mm) of annual accumulation. The city averages 143 sunny days per year and around 41 thunderstorm days. Nearby lake water reaches 84°F (29°C) in summer.
| Temperature | 91°F (33°C) high | 31°F (-1°C) low |
| Feels like | 112°F (44°C) high | 31°F (-1°C) low |
| Rain | 61 days | 42.2 in (1071 mm) /yr |
| Snow | 1 days | 3.6 in (93 mm) /yr |
| Sky | 143 sunny | 41 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Feb, Mar, Apr, Sep, Oct, Nov
Sky & Air by Month
Cloud cover (%)
38
Jan 47
Feb 43
Mar 57
Apr 72
May 58
Jun 62
Jul 70
Aug 49
Sep 48
Oct 32
Nov 48
Dec Humidity (%)
54
Jan 61
Feb 49
Mar 63
Apr 71
May 73
Jun 71
Jul 79
Aug 69
Sep 66
Oct 57
Nov 64
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 36 mi Greenville-Spartanburg International Airport (GSP)
Ski resort 99 mi Sugar Mountain Resort
National park 91 mi Redcliffe Plantation State Historic Site
Mountain peak
(5,053 ft) 77 mi Green Knob
Hospital 0 mi Union Medical Center
Hiking trail 14 mi Palmetto Trail: Glenn Springs Passage
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 50°F 10°C | 31°F -1°C | 1.3 in 34 mm | 3.4 in86 mm | 16 |
| February | 62°F 17°C | 40°F 5°C | 3.0 in 75 mm | 0.2 in6 mm | 14 |
| March | 71°F 21°C | 47°F 8°C | 2.3 in 57 mm | — | 17 |
| April | 76°F 25°C | 57°F 14°C | 3.6 in 91 mm | — | 9 |
| May | 78°F 26°C | 62°F 17°C | 7.0 in 177 mm | — | 5 |
| June | 88°F 31°C | 71°F 22°C | 5.2 in 131 mm | — | 9 |
| July | 91°F 33°C | 75°F 24°C | 4.3 in 110 mm | — | 7 |
| August | 83°F 28°C | 69°F 21°C | 8.2 in 208 mm | — | 6 |
| September | 83°F 28°C | 64°F 18°C | 1.3 in 32 mm | — | 14 |
| October | 72°F 22°C | 54°F 12°C | 3.2 in 82 mm | — | 14 |
| November | 67°F 20°C | 45°F 7°C | 0.7 in 18 mm | 0.0 in1 mm | 19 |
| December | 56°F 13°C | 37°F 3°C | 2.2 in 56 mm | — | 13 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 16 | 0 |
| February | 14 | 2 |
| March | 17 | 3 |
| April | 9 | 3 |
| May | 5 | 6 |
| June | 9 | 6 |
| July | 7 | 8 |
| August | 6 | 9 |
| September | 14 | 1 |
| October | 14 | 3 |
| November | 19 | 0 |
| December | 13 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 44°F 7°C |
| February | 44°F 7°C |
| March | 50°F 10°C |
| April | 63°F 17°C |
| May | 71°F 22°C |
| June | 80°F 27°C |
| July | 84°F 29°C |
| August | 80°F 27°C |
| September | 74°F 23°C |
| October | 65°F 18°C |
| November | 54°F 12°C |
| December | 48°F 9°C |