Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Riverside features a humid continental climate (Dfa).Temperatures typically range between -3 °C (27 °F) and 27 °C (80 °F) through the year, but rarely can drop to -23 °C (-10 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 479 mm (18.9 inches) and receives 82 rainy days on the 1 mm (0.04 inches) threshold annually.Riverside enjoys an average of 3312 hours of sunshine throughout the year, and daylight varies from 9 hours 11 minutes to 15 hours 8 minutes per day.
The warmest months in Riverside are June, July and August, with daily mean temperatures ranging from 22 to 27 °C (71 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (27 - 31 °F) throughout the day. On average each year, Riverside experiences 96 days above 25 °C (77.0 °F) and 117 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 10°C (50°F) | 13°C (56°F) | 26°C (78°F) | 27°C (82°F) | 34°C (93°F) | 38°C (101°F) | 38°C (102°F) | 39°C (102°F) | 36°C (97°F) | 27°C (82°F) | 23°C (73°F) | 11°C (52°F) |
Mean maximum | 7°C (45°F) | 11°C (52°F) | 20°C (69°F) | 24°C (76°F) | 30°C (86°F) | 32°C (90°F) | 37°C (99°F) | 37°C (99°F) | 34°C (94°F) | 24°C (75°F) | 17°C (63°F) | 9°C (49°F) |
Average high | 1°C (34°F) | 4°C (39°F) | 11°C (52°F) | 15°C (60°F) | 21°C (70°F) | 28°C (83°F) | 33°C (92°F) | 32°C (90°F) | 26°C (79°F) | 15°C (60°F) | 9°C (48°F) | 2°C (36°F) |
Daily mean | -3°C (27°F) | -0°C (31°F) | 5°C (42°F) | 10°C (49°F) | 15°C (59°F) | 22°C (71°F) | 27°C (80°F) | 25°C (77°F) | 19°C (67°F) | 10°C (50°F) | 4°C (39°F) | -2°C (28°F) |
Average low | -7°C (20°F) | -5°C (24°F) | -0°C (32°F) | 3°C (38°F) | 8°C (47°F) | 14°C (57°F) | 18°C (65°F) | 17°C (63°F) | 11°C (53°F) | 4°C (39°F) | -1°C (30°F) | -6°C (21°F) |
Mean minimum | -17°C (2°F) | -15°C (5°F) | -10°C (14°F) | -3°C (27°F) | 1°C (33°F) | 6°C (44°F) | 13°C (55°F) | 11°C (53°F) | 3°C (38°F) | -5°C (23°F) | -8°C (17°F) | -15°C (5°F) |
Minimum | -23°C (-10°F) | -18°C (0°F) | -18°C (1°F) | -5°C (24°F) | -1°C (31°F) | 5°C (41°F) | 10°C (50°F) | 8°C (46°F) | 3°C (37°F) | -11°C (12°F) | -11°C (13°F) | -17°C (1°F) |
Compare temperature, precipitation, sunshine, UV index in Riverside, Utah, United States with other places around the world.
Riverside usually has the most precipitation in February, March and April, with an average of 10 rainy days and 61 mm (2.4 inches) of precipitation per month.The driest months in Riverside are June, July and August. On average, 15 mm (0.6 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 53 (2.1) | 63 (2.5) | 58 (2.3) | 60 (2.4) | 44 (1.7) | 19 (0.7) | 12 (0.5) | 16 (0.6) | 34 (1.3) | 41 (1.6) | 38 (1.5) | 42 (1.7) |
Average precipitation days (≥ 1 mm) | 9 | 11 | 11 | 9 | 8 | 3 | 3 | 2 | 4 | 5 | 8 | 9 |
The sunniest months in Riverside are June, July and August, when the sun shines an average of 12 hours 16 minutes a day.Least sunny months in Riverside: January, February and December receive an average of 5 hours 36 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 139 | 191 | 258 | 287 | 347 | 381 | 391 | 356 | 308 | 263 | 207 | 179 |
Mean daily daylight hours | 9h 31m | 10h 36m | 11h 58m | 13h 22m | 14h 33m | 15h 8m | 14h 49m | 13h 45m | 12h 25m | 11h 1m | 9h 48m | 9h 11m |
Riverside experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. 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) | 3 | 5 | 7 | 9 | 10 | 11 | 11 | 10 | 9 | 6 | 4 | 3 |