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RiversideUSCalifornia, United States | ||
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RiversideUSCalifornia, United States | |||||||||||||||
Riverside
DetailsHeat Seeker Score
Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.
Use the detailed page for charts, component scores, and weather inputs behind every monthly ranking.
Calculations are based on the last 8 years of historical weather data.
Riverside, California experiences comfortable temperatures for most of the year, especially from April to November.
However, July, August, and September can be uncomfortably hot, with maximum temperatures exceeding 86°F.
The mildest months are January, February, and December, with temperatures generally remaining within a comfortable range but occasionally dipping close to discomfort levels.
The temperature range between minimum and maximum widens significantly during the summer months.
Maximum Temperatures
| Period | Riverside |
|---|---|
| Jan | 65.5°F |
| Feb | 65.7°F |
| Mar | 68.5°F |
| Apr | 74.3°F |
| May | 77.4°F |
| Jun | 86.5°F |
| Jul | 93.6°F |
| Aug | 94.1°F |
| Sep | 90.1°F |
| Oct | 83.1°F |
| Nov | 73.6°F |
| Dec | 66.6°F |
| Average | 78.3°F |
Minimum Temperatures
| Period | Riverside |
|---|---|
| Jan | 47.7°F |
| Feb | 47.7°F |
| Mar | 50.4°F |
| Apr | 54.7°F |
| May | 58.3°F |
| Jun | 64.8°F |
| Jul | 71.6°F |
| Aug | 73.0°F |
| Sep | 69.4°F |
| Oct | 61.5°F |
| Nov | 53.6°F |
| Dec | 48.9°F |
| Average | 58.5°F |
Riverside experiences a significant increase in sun hours from January to July, peaking at 13.8 hours, before gradually decreasing towards the end of the year
Precipitation is generally low throughout the year, with the highest amounts in January, February, and March, and minimal rainfall during the summer months
This indicates a dry, sunny climate with most of the limited rainfall occurring in the winter.
Sunny Weather
| Period | Riverside |
|---|---|
| Jan | 7.1 hours/day |
| Feb | 7.0 hours/day |
| Mar | 7.1 hours/day |
| Apr | 9.4 hours/day |
| May | 10.8 hours/day |
| Jun | 13.5 hours/day |
| Jul | 13.7 hours/day |
| Aug | 12.1 hours/day |
| Sep | 11.0 hours/day |
| Oct | 9.9 hours/day |
| Nov | 7.6 hours/day |
| Dec | 6.4 hours/day |
| Average | 9.6 hours/day |
Precipitation Levels
| Period | Riverside |
|---|---|
| Jan | 0.1in |
| Feb | 0.1in |
| Mar | 0.1in |
| Apr | 0.0in |
| May | 0.0in |
| Jun | 0.0in |
| Jul | 0.0in |
| Aug | 0.0in |
| Sep | 0.0in |
| Oct | 0.0in |
| Nov | 0.1in |
| Dec | 0.1in |
| Average | 0.0in |
Wind Speed
| Period | Riverside |
|---|---|
| Jan | 6.6mph |
| Feb | 7.9mph |
| Mar | 9.4mph |
| Apr | 10.6mph |
| May | 10.8mph |
| Jun | 10.8mph |
| Jul | 10.7mph |
| Aug | 10.4mph |
| Sep | 10.0mph |
| Oct | 8.8mph |
| Nov | 7.0mph |
| Dec | 6.2mph |
| Average | 9.1mph |
Humidity
| Period | Riverside |
|---|---|
| Jan | 42.1% |
| Feb | 46.5% |
| Mar | 52.4% |
| Apr | 48.6% |
| May | 52.2% |
| Jun | 45.3% |
| Jul | 39.6% |
| Aug | 38.9% |
| Sep | 42.9% |
| Oct | 39.1% |
| Nov | 38.2% |
| Dec | 41.5% |
| Average | 43.9% |
Riverside experiences its earliest sunrise in June at 5:39 AM and its latest in October at 6:56 AM.
The earliest sunset occurs in December at 4:43 PM, while the latest is in June at 8:01 PM.
Consequently, the shortest day is in December with 9 hours and 56 minutes of daylight, and the longest day is in June with 14 hours and 22 minutes.
Overall, there is a significant shift in daylight hours between the summer and winter months.
Sunrise Time
| Period | Riverside |
|---|---|
| Jan | 6:53 |
| Feb | 6:34 |
| Mar | 6:37 |
| Apr | 6:18 |
| May | 5:49 |
| Jun | 5:39 |
| Jul | 5:51 |
| Aug | 6:12 |
| Sep | 6:33 |
| Oct | 6:56 |
| Nov | 6:31 |
| Dec | 6:47 |
| Average | 6:24 |
Sunset Time
| Period | Riverside |
|---|---|
| Jan | 17:05 |
| Feb | 17:34 |
| Mar | 18:38 |
| Apr | 19:22 |
| May | 19:45 |
| Jun | 20:02 |
| Jul | 20:00 |
| Aug | 19:35 |
| Sep | 18:55 |
| Oct | 18:14 |
| Nov | 16:55 |
| Dec | 16:43 |
| Average | 18:36 |
Useful Day Length
| Period | Riverside |
|---|---|
| Jan | 10:05 hours |
| Feb | 10:34 hours |
| Mar | 11:38 hours |
| Apr | 12:22 hours |
| May | 12:45 hours |
| Jun | 13:02 hours |
| Jul | 13:00 hours |
| Aug | 12:35 hours |
| Sep | 11:55 hours |
| Oct | 11:14 hours |
| Nov | 9:55 hours |
| Dec | 9:43 hours |
| Average | 11:36 hours |
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