Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Riverside features a humid subtropical climate (Cfa).Temperatures typically range between 8 °C (47 °F) and 27 °C (80 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1480 mm (58.3 inches) and receives 144 rainy days on the 1 mm (0.04 inches) threshold annually.Riverside enjoys an average of 3048 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.
The warmest months in Riverside are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (47 - 52 °F) throughout the day. On average each year, Riverside experiences 153 days above 25 °C (77.0 °F) and 24 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 26°C (79°F) | 27°C (80°F) | 30°C (87°F) | 30°C (87°F) | 33°C (93°F) | 34°C (94°F) | 36°C (97°F) | 36°C (98°F) | 36°C (97°F) | 37°C (98°F) | 26°C (79°F) | 24°C (75°F) |
Mean maximum | 23°C (73°F) | 25°C (77°F) | 27°C (81°F) | 29°C (84°F) | 32°C (90°F) | 33°C (91°F) | 35°C (94°F) | 34°C (94°F) | 33°C (92°F) | 32°C (89°F) | 25°C (77°F) | 22°C (72°F) |
Average high | 13°C (56°F) | 17°C (62°F) | 20°C (68°F) | 23°C (74°F) | 27°C (82°F) | 30°C (86°F) | 32°C (89°F) | 31°C (88°F) | 30°C (86°F) | 25°C (77°F) | 18°C (64°F) | 15°C (59°F) |
Daily mean | 8°C (47°F) | 11°C (52°F) | 14°C (58°F) | 17°C (63°F) | 22°C (72°F) | 25°C (77°F) | 27°C (80°F) | 26°C (80°F) | 25°C (76°F) | 19°C (67°F) | 12°C (53°F) | 10°C (50°F) |
Average low | 3°C (38°F) | 6°C (43°F) | 9°C (48°F) | 11°C (52°F) | 17°C (63°F) | 21°C (70°F) | 23°C (73°F) | 22°C (72°F) | 20°C (68°F) | 15°C (59°F) | 6°C (43°F) | 5°C (41°F) |
Mean minimum | -6°C (21°F) | -4°C (26°F) | -2°C (29°F) | 3°C (37°F) | 9°C (48°F) | 16°C (62°F) | 19°C (67°F) | 19°C (66°F) | 14°C (58°F) | 5°C (41°F) | -2°C (29°F) | -4°C (25°F) |
Minimum | -12°C (11°F) | -7°C (20°F) | -3°C (26°F) | 1°C (33°F) | 6°C (43°F) | 14°C (57°F) | 18°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 Riverside, Alabama, United States with other places around the world.
Riverside usually has the most precipitation in February, April and December, with an average of 12 rainy days and 149 mm (5.9 inches) of precipitation per month.The driest months in Riverside are May, September and November. On average, 92 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) | 119 (4.7) | 161 (6.3) | 134 (5.3) | 143 (5.6) | 104 (4.1) | 142 (5.6) | 110 (4.3) | 130 (5.1) | 87 (3.4) | 120 (4.7) | 86 (3.4) | 144 (5.7) |
Average precipitation days (≥ 1 mm) | 10 | 14 | 12 | 9 | 10 | 16 | 18 | 15 | 10 | 9 | 8 | 13 |
The sunniest months in Riverside are May, July and August, when the sun shines an average of 10 hours 12 minutes a day.Least sunny months in Riverside: January, February and December receive an average of 5 hours 30 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 159 | 162 | 229 | 279 | 309 | 302 | 332 | 306 | 285 | 263 | 238 | 179 |
Mean daily daylight hours | 10h 11m | 10h 58m | 11h 59m | 13h 2m | 13h 54m | 14h 20m | 14h 6m | 13h 19m | 12h 19m | 11h 17m | 10h 23m | 9h 56m |
Riverside experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Riverside 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 | 10 | 9 | 7 | 6 | 4 |