Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Johnsonville features a humid subtropical climate (Cfa). Temperatures typically range between 9 °C (49 °F) and 27 °C (81 °F) through the year, but rarely can drop to -13 °C (9 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1385 mm (54.5 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually. Johnsonville enjoys an average of 3310 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 21 minutes per day.
The warmest months in Johnsonville are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 12 °C (49 - 55 °F) throughout the day. On average each year, Johnsonville experiences 169 days above 25 °C (77.0 °F) and 21 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 27°C (81°F) |
29°C (85°F) |
31°C (88°F) |
32°C (90°F) |
38°C (100°F) |
38°C (100°F) |
36°C (98°F) |
36°C (98°F) |
35°C (95°F) |
36°C (97°F) |
30°C (86°F) |
26°C (80°F) |
| Mean maximum | 25°C (76°F) |
27°C (82°F) |
29°C (85°F) |
30°C (87°F) |
34°C (94°F) |
34°C (94°F) |
36°C (96°F) |
35°C (95°F) |
34°C (94°F) |
32°C (90°F) |
28°C (82°F) |
24°C (76°F) |
| Average high | 15°C (59°F) |
18°C (65°F) |
20°C (69°F) |
25°C (76°F) |
29°C (84°F) |
30°C (87°F) |
32°C (90°F) |
31°C (89°F) |
30°C (86°F) |
26°C (79°F) |
19°C (67°F) |
17°C (62°F) |
| Daily mean | 9°C (49°F) |
12°C (55°F) |
14°C (58°F) |
18°C (65°F) |
23°C (74°F) |
26°C (78°F) |
27°C (81°F) |
27°C (80°F) |
25°C (77°F) |
21°C (69°F) |
13°C (56°F) |
11°C (52°F) |
| Average low | 4°C (40°F) |
7°C (45°F) |
8°C (48°F) |
12°C (55°F) |
18°C (64°F) |
21°C (71°F) |
23°C (74°F) |
23°C (74°F) |
20°C (69°F) |
16°C (61°F) |
8°C (46°F) |
6°C (42°F) |
| Mean minimum | -6°C (21°F) |
-3°C (26°F) |
-4°C (26°F) |
2°C (37°F) |
8°C (47°F) |
15°C (60°F) |
19°C (66°F) |
19°C (67°F) |
14°C (57°F) |
6°C (43°F) |
-2°C (29°F) |
-4°C (25°F) |
| Minimum | -13°C (9°F) |
-5°C (23°F) |
-5°C (24°F) |
-2°C (28°F) |
4°C (40°F) |
12°C (53°F) |
16°C (61°F) |
17°C (63°F) |
10°C (50°F) |
3°C (37°F) |
-4°C (25°F) |
-6°C (21°F) |
Compare temperature, precipitation, sunshine, UV index in Johnsonville, South Carolina, United States with other places around the world.
Johnsonville usually has the most precipitation in July, August and September, with an average of 17 rainy days and 179 mm (7.0 inches) of precipitation per month. The driest months in Johnsonville are January, March and October. On average, 65 mm (2.6 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 69 (2.7) | 86 (3.4) | 72 (2.8) | 94 (3.7) | 108 (4.3) | 149 (5.9) | 172 (6.8) | 207 (8.1) | 158 (6.2) | 54 (2.1) | 83 (3.2) | 133 (5.3) |
| Average precipitation days (≥ 1 mm) | 8 | 9 | 9 | 8 | 9 | 16 | 18 | 21 | 12 | 8 | 9 | 9 |
The sunniest months in Johnsonville are May, July and August, when the sun shines an average of 10 hours 37 minutes a day. Least sunny months in Johnsonville: January, February and December receive an average of 6 hours 36 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 183 | 203 | 268 | 302 | 332 | 314 | 340 | 314 | 300 | 289 | 247 | 214 |
| Mean daily daylight hours | 10h 10m | 10h 58m | 11h 59m | 13h 2m | 13h 55m | 14h 21m | 14h 7m | 13h 20m | 12h 20m | 11h 17m | 10h 23m | 9h 55m |
Johnsonville experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Johnsonville UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 4 | 7 | 8 | 10 | 11 | 11 | 11 | 11 | 9 | 8 | 6 | 4 |
Discover in-depth weather details for every month in Johnsonville. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Johnsonville's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.