Climate Johnston - South Carolina
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 53 | 57 | 65 | 73 | 82 | 88 |
| Average low in ºF Av. low Lo | 31 | 35 | 41 | 47 | 56 | 65 |
| Av. precipitation in inch Av. precip. Pre. | 4.35 | 4.18 | 4.53 | 3.09 | 2.99 | 4.64 |
| Av. snowfall in inch Snowfall Sn | 1 | 0 | 0 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 91 | 89 | 83 | 74 | 65 | 55 |
| Average low in ºF Av. low Lo | 68 | 67 | 61 | 50 | 41 | 33 |
| Av. precipitation in inch Av. precip. Pre. | 4.19 | 4.89 | 3.67 | 3.43 | 3.37 | 3.58 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 0 |
Johnston experiences a humid subtropical climate, characterized by hot summers and cold winters with strong seasonal contrast. Rainfall is fairly wet and spread evenly throughout the year, though summer brings heavy seasonal downpours and afternoon thunderstorms. The area receives little snowfall annually.
Johnston Climate Graph - South Carolina Climate Chart
Daily normals Johnston - South Carolina - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 52.3 | 31.0 | 0.12 | 0.12 | 0.00 | 0.00 |
| 2 Jan | 52.2 | 31.0 | 0.24 | 0.24 | 0.00 | 0.00 |
| 3 Jan | 52.2 | 31.0 | 0.39 | 0.39 | 0.00 | 0.00 |
| 4 Jan | 52.2 | 31.0 | 0.51 | 0.51 | 0.12 | 0.30 |
| 5 Jan | 52.2 | 31.0 | 0.67 | 0.67 | 0.12 | 0.30 |
| 6 Jan | 52.2 | 31.0 | 0.79 | 0.79 | 0.12 | 0.30 |
| 7 Jan | 52.2 | 31.0 | 0.91 | 0.91 | 0.12 | 0.30 |
| 8 Jan | 52.2 | 31.0 | 1.06 | 1.06 | 0.12 | 0.30 |
| 9 Jan | 52.2 | 31.1 | 1.18 | 1.18 | 0.20 | 0.50 |
| 10 Jan | 52.3 | 31.1 | 1.30 | 1.30 | 0.20 | 0.50 |
| 11 Jan | 52.3 | 31.1 | 1.46 | 1.46 | 0.20 | 0.50 |
| 12 Jan | 52.4 | 31.2 | 1.57 | 1.57 | 0.20 | 0.50 |
| 13 Jan | 52.4 | 31.2 | 1.73 | 1.73 | 0.20 | 0.50 |
| 14 Jan | 52.5 | 31.3 | 1.85 | 1.85 | 0.31 | 0.80 |
| 15 Jan | 52.6 | 31.3 | 2.01 | 2.01 | 0.31 | 0.80 |
| 16 Jan | 52.6 | 31.4 | 2.13 | 2.13 | 0.31 | 0.80 |
| 17 Jan | 52.7 | 31.4 | 2.28 | 2.28 | 0.31 | 0.80 |
| 18 Jan | 52.8 | 31.5 | 2.40 | 2.40 | 0.31 | 0.80 |
| 19 Jan | 52.9 | 31.5 | 2.56 | 2.56 | 0.31 | 0.80 |
| 20 Jan | 53.0 | 31.6 | 2.72 | 2.72 | 0.31 | 0.80 |
| 21 Jan | 53.1 | 31.7 | 2.83 | 2.83 | 0.39 | 1.00 |
| 22 Jan | 53.3 | 31.8 | 2.99 | 2.99 | 0.39 | 1.00 |
| 23 Jan | 53.4 | 31.8 | 3.15 | 3.15 | 0.39 | 1.00 |
| 24 Jan | 53.5 | 31.9 | 3.31 | 3.31 | 0.39 | 1.00 |
| 25 Jan | 53.6 | 32.0 | 3.43 | 3.43 | 0.39 | 1.00 |
| 26 Jan | 53.8 | 32.1 | 3.58 | 3.58 | 0.39 | 1.00 |
| 27 Jan | 53.9 | 32.1 | 3.74 | 3.74 | 0.39 | 1.00 |
| 28 Jan | 54.0 | 32.2 | 3.90 | 3.90 | 0.51 | 1.30 |
| 29 Jan | 54.2 | 32.3 | 4.06 | 4.06 | 0.51 | 1.30 |
| 30 Jan | 54.3 | 32.4 | 4.21 | 4.21 | 0.51 | 1.30 |
| 31 Jan | 54.5 | 32.5 | 4.33 | 4.33 | 0.51 | 1.30 |
Weather history Johnston - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | - | - | - | - | - |
| 02 Jun | - | - | - | - | - |
| 03 Jun | - | - | 0.00 | 0.00 | 0.0 |
| 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 Johnston
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | - ºF | 53 ºF | |
| Average low temperature Av. low temp. | - ºF | 31 ºF | |
| Total precipitation Total precip. | 0.00 inch | 4.35 inch | |
| Total snowfall Total snowfall | 0.00 inch | 1 inch | |
| Highest max temperature Highest max temp. | - ºF | - | |
| Lowest max temperature Lowest max temp. | - ºF | - | |
| Highest min temperature Highest min temp. | - ºF | - | |
| Lowest min temperature Lowest min temp. | - ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Johnston - South Carolina
| Country | United States | |
|---|---|---|
| State | South Carolina | |
| County | Edgefield | |
| City | Johnston | |
| Zip Code | 29832 | |
| Longitude | -81.8 dec. degr. | |
| Latitude | 33.83 dec. degr. | |
| Altitude - Elevation | 653ft | |
| ICAO | - | |
| IATA | - |
Date and Time Johnston - South Carolina
| Local Time | 05:56 PM | |
|---|---|---|
| Sunrise | 06:15 AM | |
| Sunset | 08:42 PM | |
| Day/Night | Day | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Johnston - South Carolina
USGS National Map — Open interactive map
Johnston weather averages
| Annual high temperature | 73ºF |
| Annual low temperature | 50ºF |
| Average annual precip. | 46.91 inch |
| Av. annual snowfall | 1 inch |
Station Data
Monthly averages Johnston
Longitude: -81.8, Latitude: 33.83
Average weather Johnston, SC - 29832
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, ...