Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Harpersville features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (47 °F) and 27 °C (81 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1445 mm (56.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Harpersville enjoys an average of 3023 hours of sunshine throughout the year, and daylight varies from 9 hours 59 minutes to 14 hours 17 minutes per day.
The warmest months in Harpersville are June, July and August, with daily mean temperatures ranging from 25 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 8 to 12 °C (47 - 53 °F) throughout the day. On average each year, Harpersville experiences 158 days above 25 °C (77.0 °F) and 23 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 26°C (80°F) |
27°C (81°F) |
30°C (87°F) |
32°C (89°F) |
34°C (93°F) |
34°C (94°F) |
36°C (97°F) |
37°C (99°F) |
37°C (98°F) |
37°C (99°F) |
27°C (81°F) |
25°C (77°F) |
| Mean maximum | 23°C (74°F) |
25°C (78°F) |
28°C (82°F) |
29°C (85°F) |
33°C (91°F) |
33°C (92°F) |
35°C (95°F) |
35°C (95°F) |
34°C (94°F) |
32°C (90°F) |
25°C (78°F) |
23°C (74°F) |
| Average high | 14°C (57°F) |
17°C (63°F) |
20°C (69°F) |
24°C (75°F) |
28°C (82°F) |
30°C (87°F) |
32°C (90°F) |
32°C (89°F) |
30°C (87°F) |
25°C (78°F) |
18°C (65°F) |
15°C (59°F) |
| Daily mean | 8°C (47°F) |
12°C (53°F) |
15°C (59°F) |
17°C (64°F) |
22°C (73°F) |
25°C (78°F) |
27°C (81°F) |
27°C (80°F) |
25°C (77°F) |
20°C (68°F) |
12°C (54°F) |
10°C (50°F) |
| Average low | 4°C (39°F) |
6°C (44°F) |
9°C (49°F) |
11°C (53°F) |
17°C (63°F) |
21°C (70°F) |
23°C (74°F) |
23°C (73°F) |
20°C (69°F) |
15°C (59°F) |
6°C (44°F) |
5°C (42°F) |
| Mean minimum | -6°C (21°F) |
-3°C (26°F) |
-1°C (30°F) |
3°C (37°F) |
9°C (48°F) |
17°C (62°F) |
20°C (68°F) |
19°C (66°F) |
14°C (58°F) |
5°C (41°F) |
-2°C (28°F) |
-4°C (25°F) |
| Minimum | -11°C (12°F) |
-7°C (20°F) |
-4°C (25°F) |
1°C (34°F) |
6°C (43°F) |
14°C (57°F) |
17°C (64°F) |
17°C (62°F) |
11°C (52°F) |
1°C (34°F) |
-6°C (22°F) |
-7°C (20°F) |
Compare temperature, precipitation, sunshine, UV index in Harpersville, Alabama, United States with other places around the world.
Harpersville usually has the most precipitation in February, June and December, with an average of 13 rainy days and 145 mm (5.7 inches) of precipitation per month. The driest months in Harpersville are May, September and November. On average, 91 mm (3.6 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 111 (4.4) | 154 (6.1) | 127 (5.0) | 136 (5.3) | 108 (4.2) | 141 (5.6) | 118 (4.6) | 119 (4.7) | 85 (3.3) | 126 (4.9) | 82 (3.2) | 139 (5.5) |
| Average precipitation days (≥ 1 mm) | 9 | 13 | 12 | 8 | 10 | 15 | 16 | 14 | 8 | 9 | 8 | 13 |
The sunniest months in Harpersville are May, July and August, when the sun shines an average of 10 hours 7 minutes a day. Least sunny months in Harpersville: January, February and December receive an average of 5 hours 31 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 159 | 164 | 226 | 276 | 304 | 292 | 332 | 304 | 283 | 259 | 240 | 178 |
| Mean daily daylight hours | 10h 13m | 11h 0m | 11h 59m | 13h 1m | 13h 52m | 14h 17m | 14h 3m | 13h 18m | 12h 19m | 11h 18m | 10h 25m | 9h 59m |
Harpersville 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 Harpersville 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 | 7 | 6 | 4 |
Discover in-depth weather details for every month in Harpersville. 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 Harpersville'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.