Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Hayti features a humid continental climate (Dfa).Temperatures typically range between -10 °C (15 °F) and 23 °C (73 °F) through the year, but rarely can drop to -37 °C (-34 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 722 mm (28.4 inches) and receives 88 rainy days on the 1 mm (0.04 inches) threshold annually.Hayti enjoys an average of 3057 hours of sunshine throughout the year, and daylight varies from 8 hours 51 minutes to 15 hours 29 minutes per day.
The warmest months in Hayti are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (70 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -5 °C (15 - 24 °F) throughout the day. On average each year, Hayti experiences 66 days above 25 °C (77.0 °F) and 154 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 7°C (45°F) | 16°C (60°F) | 25°C (77°F) | 28°C (82°F) | 33°C (91°F) | 36°C (97°F) | 36°C (97°F) | 33°C (91°F) | 32°C (91°F) | 28°C (82°F) | 24°C (76°F) | 13°C (56°F) |
Mean maximum | 5°C (41°F) | 7°C (46°F) | 17°C (63°F) | 24°C (76°F) | 29°C (85°F) | 30°C (87°F) | 34°C (93°F) | 31°C (88°F) | 31°C (87°F) | 25°C (78°F) | 16°C (62°F) | 9°C (49°F) |
Average high | -5°C (23°F) | -5°C (24°F) | 4°C (39°F) | 10°C (51°F) | 19°C (66°F) | 26°C (80°F) | 28°C (82°F) | 26°C (79°F) | 22°C (73°F) | 12°C (55°F) | 5°C (41°F) | -1°C (31°F) |
Daily mean | -9°C (15°F) | -10°C (15°F) | -1°C (31°F) | 5°C (41°F) | 13°C (57°F) | 21°C (70°F) | 23°C (73°F) | 21°C (70°F) | 17°C (63°F) | 8°C (46°F) | 0°C (33°F) | -5°C (24°F) |
Average low | -14°C (8°F) | -14°C (6°F) | -5°C (23°F) | -0°C (32°F) | 8°C (47°F) | 15°C (60°F) | 18°C (64°F) | 16°C (61°F) | 12°C (54°F) | 3°C (38°F) | -4°C (25°F) | -9°C (17°F) |
Mean minimum | -28°C (-17°F) | -27°C (-16°F) | -17°C (2°F) | -10°C (14°F) | -0°C (32°F) | 9°C (49°F) | 12°C (54°F) | 10°C (50°F) | 3°C (38°F) | -7°C (19°F) | -12°C (10°F) | -22°C (-8°F) |
Minimum | -37°C (-34°F) | -31°C (-24°F) | -28°C (-19°F) | -18°C (-1°F) | -2°C (29°F) | 6°C (43°F) | 9°C (49°F) | 9°C (48°F) | 2°C (36°F) | -12°C (10°F) | -16°C (4°F) | -26°C (-14°F) |
Compare temperature, precipitation, sunshine, UV index in Hayti, South Dakota, United States with other places around the world.
Hayti usually has the most precipitation in May, August and September, with an average of 9 rainy days and 91 mm (3.6 inches) of precipitation per month.The driest months in Hayti are January, February and November. On average, 20 mm (0.8 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 21 (0.8) | 17 (0.7) | 50 (2.0) | 70 (2.8) | 85 (3.3) | 78 (3.1) | 80 (3.2) | 101 (4.0) | 88 (3.5) | 79 (3.1) | 23 (0.9) | 30 (1.2) |
Average precipitation days (≥ 1 mm) | 4 | 4 | 7 | 10 | 10 | 9 | 8 | 10 | 9 | 8 | 4 | 5 |
The sunniest months in Hayti are June, July and August, when the sun shines an average of 11 hours 28 minutes a day.Least sunny months in Hayti: January, November and December receive an average of 5 hours 42 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 141 | 204 | 237 | 257 | 301 | 355 | 367 | 331 | 256 | 220 | 196 | 187 |
Mean daily daylight hours | 9h 14m | 10h 26m | 11h 57m | 13h 31m | 14h 50m | 15h 29m | 15h 7m | 13h 56m | 12h 27m | 10h 54m | 9h 33m | 8h 51m |
Hayti experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Hayti UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 8 | 9 | 10 | 9 | 9 | 8 | 5 | 3 | 2 |