Climate Union - South Carolina
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 54 | 58 | 66 | 75 | 82 | 89 |
| Average low in ºF Av. low Lo | 28 | 31 | 37 | 45 | 54 | 63 |
| Av. precipitation in inch Av. precip. Pre. | 4.34 | 4.14 | 4.69 | 3.45 | 2.95 | 4.26 |
| Av. snowfall in inch Snowfall Sn | 1 | 1 | 0 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 92 | 90 | 84 | 74 | 65 | 56 |
| Average low in ºF Av. low Lo | 67 | 67 | 59 | 47 | 37 | 30 |
| Av. precipitation in inch Av. precip. Pre. | 3.50 | 4.33 | 3.51 | 3.69 | 3.68 | 3.97 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 0 |
Union experiences a humid subtropical climate with a very large seasonal temperature contrast. Summers are hot, while winters are cold and bring occasional snowfall. Rainfall is fairly wet and spread fairly evenly throughout the year, though heavy seasonal downpours or afternoon thunderstorms can sometimes occur during the warmer months.
Union Climate Graph - South Carolina Climate Chart
Daily normals Union - South Carolina - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 53.2 | 28.0 | 0.12 | 0.12 | 0.00 | 0.00 |
| 2 Jan | 53.1 | 27.9 | 0.24 | 0.24 | 0.00 | 0.00 |
| 3 Jan | 53.1 | 27.8 | 0.39 | 0.39 | 0.12 | 0.30 |
| 4 Jan | 53.0 | 27.8 | 0.51 | 0.51 | 0.12 | 0.30 |
| 5 Jan | 53.0 | 27.7 | 0.67 | 0.67 | 0.12 | 0.30 |
| 6 Jan | 53.0 | 27.6 | 0.79 | 0.79 | 0.12 | 0.30 |
| 7 Jan | 53.0 | 27.6 | 0.91 | 0.91 | 0.20 | 0.50 |
| 8 Jan | 53.0 | 27.5 | 1.06 | 1.06 | 0.20 | 0.50 |
| 9 Jan | 53.0 | 27.5 | 1.18 | 1.18 | 0.20 | 0.50 |
| 10 Jan | 53.1 | 27.5 | 1.34 | 1.34 | 0.31 | 0.80 |
| 11 Jan | 53.1 | 27.4 | 1.50 | 1.50 | 0.31 | 0.80 |
| 12 Jan | 53.1 | 27.4 | 1.61 | 1.61 | 0.39 | 1.00 |
| 13 Jan | 53.2 | 27.4 | 1.77 | 1.77 | 0.51 | 1.30 |
| 14 Jan | 53.3 | 27.4 | 1.93 | 1.93 | 0.51 | 1.30 |
| 15 Jan | 53.3 | 27.4 | 2.05 | 2.05 | 0.59 | 1.50 |
| 16 Jan | 53.4 | 27.4 | 2.20 | 2.20 | 0.59 | 1.50 |
| 17 Jan | 53.5 | 27.4 | 2.36 | 2.36 | 0.71 | 1.80 |
| 18 Jan | 53.6 | 27.5 | 2.48 | 2.48 | 0.71 | 1.80 |
| 19 Jan | 53.7 | 27.5 | 2.64 | 2.64 | 0.79 | 2.00 |
| 20 Jan | 53.8 | 27.5 | 2.76 | 2.76 | 0.91 | 2.30 |
| 21 Jan | 53.9 | 27.6 | 2.91 | 2.91 | 0.91 | 2.30 |
| 22 Jan | 54.0 | 27.6 | 3.03 | 3.03 | 0.91 | 2.30 |
| 23 Jan | 54.1 | 27.7 | 3.19 | 3.19 | 0.98 | 2.50 |
| 24 Jan | 54.3 | 27.8 | 3.35 | 3.35 | 0.98 | 2.50 |
| 25 Jan | 54.4 | 27.8 | 3.46 | 3.46 | 1.10 | 2.80 |
| 26 Jan | 54.5 | 27.9 | 3.62 | 3.62 | 1.10 | 2.80 |
| 27 Jan | 54.7 | 28.0 | 3.78 | 3.78 | 1.10 | 2.80 |
| 28 Jan | 54.8 | 28.1 | 3.90 | 3.90 | 1.18 | 3.00 |
| 29 Jan | 55.0 | 28.2 | 4.06 | 4.06 | 1.18 | 3.00 |
| 30 Jan | 55.1 | 28.3 | 4.17 | 4.17 | 1.30 | 3.30 |
| 31 Jan | 55.3 | 28.4 | 4.33 | 4.33 | 1.30 | 3.30 |
Weather history Union - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 70.0 | 61.0 | 0.17 | 0.00 | 0.0 |
| 02 Jun | - | - | - | - | - |
| 03 Jun | - | - | - | - | - |
| 04 Jun | - | - | - | - | - |
| 05 Jun | - | - | - | - | - |
| 06 Jun | - | - | - | - | - |
| 07 Jun | - | - | - | - | - |
| 08 Jun | - | - | - | - | - |
| 09 Jun | - | - | - | - | - |
| 10 Jun | - | - | - | - | - |
| 11 Jun | - | - | - | - | - |
| 12 Jun | - | - | - | - | - |
| 13 Jun | - | - | - | - | - |
| 14 Jun | - | - | - | - | - |
| 15 Jun | - | - | - | - | - |
| 16 Jun | - | - | - | - | - |
| 17 Jun | - | - | - | - | - |
| 18 Jun | - | - | - | - | - |
| 19 Jun | - | - | - | - | - |
| 20 Jun | - | - | - | - | - |
| 21 Jun | - | - | - | - | - |
| 22 Jun | - | - | - | - | - |
| 23 Jun | - | - | - | - | - |
| 24 Jun | - | - | - | - | - |
| 25 Jun | - | - | - | - | - |
| 26 Jun | - | - | - | - | - |
| 27 Jun | - | - | - | - | - |
| 28 Jun | - | - | - | - | - |
| 29 Jun | - | - | - | - | - |
| 30 Jun | - | - | - | - | - |
Past weather Union
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 70.0 ºF | 54 ºF | |
| Average low temperature Av. low temp. | 61.0 ºF | 28 ºF | |
| Total precipitation Total precip. | 0.17 inch | 4.34 inch | |
| Total snowfall Total snowfall | 0.00 inch | 1 inch | |
| Highest max temperature Highest max temp. | 70.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 70.0 ºF | - | |
| Highest min temperature Highest min temp. | 61.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 61.0 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Union - South Carolina
| Country | United States | |
|---|---|---|
| State | South Carolina | |
| County | Union | |
| City | Union | |
| Zip Code | 29379 | |
| Longitude | -81.64 dec. degr. | |
| Latitude | 34.69 dec. degr. | |
| Altitude - Elevation | 591ft | |
| ICAO | - | |
| IATA | - |
Date and Time Union - South Carolina
| Local Time | 09:25 PM | |
|---|---|---|
| Sunrise | 06:11 AM | |
| Sunset | 08:43 PM | |
| Day/Night | Night | |
| Timezone | New_York -5:00 | |
| Timezone DB | America - New York |
Map of Union - South Carolina
USGS National Map — Open interactive map
Union weather averages
| Annual high temperature | 74ºF |
| Annual low temperature | 47ºF |
| Average annual precip. | 46.51 inch |
| Av. annual snowfall | 2 inch |
Station Data
Monthly averages Union
Longitude: -81.6412, Latitude: 34.687
Average weather Union, SC - 29379
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...