Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Petersburg features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 24 °C (75 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1108 mm (43.6 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually. Petersburg enjoys an average of 2980 hours of sunshine throughout the year, and daylight varies from 9 hours 27 minutes to 14 hours 50 minutes per day.
The warmest months in Petersburg are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (69 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (33 - 38 °F) throughout the day. On average each year, Petersburg experiences 90 days above 25 °C (77.0 °F) and 89 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 20°C (69°F) |
25°C (78°F) |
24°C (76°F) |
30°C (86°F) |
31°C (88°F) |
32°C (90°F) |
34°C (93°F) |
34°C (93°F) |
32°C (90°F) |
31°C (89°F) |
23°C (74°F) |
21°C (71°F) |
| Mean maximum | 16°C (61°F) |
20°C (68°F) |
23°C (74°F) |
28°C (83°F) |
30°C (86°F) |
31°C (88°F) |
33°C (92°F) |
32°C (90°F) |
31°C (88°F) |
28°C (83°F) |
22°C (72°F) |
18°C (64°F) |
| Average high | 5°C (40°F) |
8°C (47°F) |
11°C (53°F) |
17°C (63°F) |
22°C (71°F) |
26°C (79°F) |
29°C (85°F) |
27°C (82°F) |
25°C (76°F) |
19°C (67°F) |
11°C (52°F) |
7°C (45°F) |
| Daily mean | 0°C (33°F) |
3°C (38°F) |
6°C (43°F) |
11°C (52°F) |
16°C (62°F) |
21°C (69°F) |
24°C (75°F) |
22°C (72°F) |
19°C (67°F) |
14°C (57°F) |
6°C (42°F) |
3°C (37°F) |
| Average low | -4°C (25°F) |
-2°C (29°F) |
1°C (34°F) |
6°C (42°F) |
11°C (53°F) |
15°C (60°F) |
18°C (65°F) |
17°C (64°F) |
14°C (58°F) |
9°C (48°F) |
1°C (34°F) |
-1°C (30°F) |
| Mean minimum | -17°C (2°F) |
-14°C (6°F) |
-10°C (13°F) |
-3°C (27°F) |
1°C (34°F) |
9°C (48°F) |
13°C (57°F) |
12°C (54°F) |
6°C (44°F) |
-0°C (32°F) |
-6°C (21°F) |
-10°C (14°F) |
| Minimum | -26°C (-15°F) |
-20°C (-4°F) |
-15°C (6°F) |
-5°C (23°F) |
-2°C (29°F) |
6°C (43°F) |
12°C (54°F) |
11°C (52°F) |
1°C (35°F) |
-3°C (27°F) |
-9°C (17°F) |
-15°C (5°F) |
Compare temperature, precipitation, sunshine, UV index in Petersburg, West Virginia, United States with other places around the world.
Petersburg usually has the most precipitation in May, September and October, with an average of 11 rainy days and 112 mm (4.4 inches) of precipitation per month. The driest months in Petersburg are January, March and November. On average, 68 mm (2.7 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 62 (2.4) | 94 (3.7) | 77 (3.0) | 103 (4.0) | 124 (4.9) | 100 (4.0) | 89 (3.5) | 95 (3.8) | 108 (4.2) | 106 (4.2) | 64 (2.5) | 87 (3.4) |
| Average precipitation days (≥ 1 mm) | 8 | 12 | 11 | 13 | 14 | 12 | 10 | 13 | 9 | 10 | 7 | 9 |
The sunniest months in Petersburg are June, July and August, when the sun shines an average of 10 hours 41 minutes a day. Least sunny months in Petersburg: January, February and December receive an average of 5 hours 12 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 133 | 165 | 249 | 249 | 281 | 315 | 353 | 315 | 284 | 246 | 212 | 175 |
| Mean daily daylight hours | 9h 46m | 10h 44m | 11h 58m | 13h 14m | 14h 18m | 14h 50m | 14h 33m | 13h 36m | 12h 23m | 11h 7m | 10h 1m | 9h 27m |
Petersburg experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Petersburg UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 3 | 5 | 7 | 10 | 10 | 10 | 10 | 10 | 8 | 7 | 5 | 3 |
Discover in-depth weather details for every month in Petersburg. 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 Petersburg'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.