Ontario vs Palm Springs: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 104 km apart · long-term climate normals (NASA POWER, 2001–2020)
Ontario and Palm Springs are virtually tied for annual sunshine — about 3,804 vs 3,777 hours a year. Ontario has the higher Sunshine Score in 5 of 12 months, Palm Springs in 4 (3 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Ontario | Palm Springs | |
|---|---|---|
| Sunshine hours / year | 3,804 | 3,777 |
| Sunniest month | May (99/100) | April (99/100) |
| Nov–Feb average score | 85/100 | 95/100 |
| Jun–Aug average score | 70/100 | 3/100 |
| Rain / year | 290 mm | 127 mm |
| Peak midday UV | 10 (very high) | 10 (very high) |
Ontario vs Palm Springs month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Ontario | Palm Springs | Ontario | Palm Springs | Ontario | Palm Springs | |
| January | 82 | 96 | 19° | 20° | 58 | 23 |
| February | 88 | 96 | 20° | 21° | 63 | 23 |
| March | 94 | 98 | 22° | 25° | 32 | 10 |
| April | 97 | 99 | 25° | 29° | 18 | 6 |
| May | 99 | 80 | 28° | 34° | 7 | 2 |
| June | 90 | 10 | 33° | 41° | 1 | 0 |
| July | 59 | 0 | 36° | 43° | 5 | 9 |
| August | 60 | 0 | 36° | 42° | 3 | 8 |
| September | 79 | 40 | 34° | 38° | 5 | 6 |
| October | 97 | 99 | 29° | 31° | 16 | 8 |
| November | 96 | 98 | 23° | 24° | 24 | 10 |
| December | 74 | 88 | 18° | 19° | 58 | 22 |
The sunnier month by month: Jan Palm Springs · Feb Palm Springs · Mar Palm Springs · Apr even · May Ontario · Jun Ontario · Jul Ontario · Aug Ontario · Sep Ontario · Oct even · Nov even · Dec Palm Springs.
When to pick which
- November–February: Palm Springs (average score 95/100 vs 85). Daytime highs are similar (20°C vs 21°C). See the winter sun ranking.
- March–May: Ontario (average score 97/100 vs 92). Palm Springs is the warmer, around 29°C daytime highs vs 25°C.
- June–August: Ontario (average score 70/100 vs 3). Palm Springs is the warmer, around 42°C daytime highs vs 35°C.
- September–October: Ontario (average score 88/100 vs 70). Palm Springs is the warmer, around 35°C daytime highs vs 32°C.
Full month-by-month guides: Ontario weather by month · Palm Springs weather by month · Best time to visit United States.
More comparisons: Ontario vs Los Angeles · Ontario vs San Diego · Ontario vs Santa Barbara · Palm Springs vs San Diego · Palm Springs vs Tijuana · Palm Springs vs Las Vegas · all head-to-heads