Mammoth Lakes weather by month & the best time to visit
United States · alpine / mountain town · Mediterranean climate
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The best time to visit Mammoth Lakes is June — its sunniest month (Sunshine Score 99/100), with August and September close behind. Mammoth Lakes averages about 3,564 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 8 mm of rain in June.
When is the best time to visit Mammoth Lakes?
For sunshine, the best time to visit Mammoth Lakes is June, then August and September. The dullest month is January (0/100, 100 mm of rain). The full month-by-month picture is in the table below.
How sunny is Mammoth Lakes?
Mammoth Lakes is one of the sunniest places on Earth: about 3,564 hours of sunshine a year. 99 Sunshine Score points separate June (99) from January (0), so the month you pick matters. It ranks #29 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. Rain has a clear season: the wettest stretch, around January, carries about 52% of the annual 572 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 3° / 37°F | -7° / 19°F | 100 mm | 2 |
| February | 0 | 3° / 37°F | -7° / 19°F | 91 mm | 4 |
| March | 0 | 6° / 43°F | -5° / 23°F | 78 mm | 5 |
| April | 15 | 10° / 50°F | -2° / 28°F | 50 mm | 7 |
| May | 71 | 17° / 63°F | 3° / 37°F | 31 mm | 8 |
| June | 99 | 24° / 75°F | 8° / 46°F | 8 mm | 10 |
| July | 98 | 28° / 82°F | 12° / 54°F | 11 mm | 10 |
| August | 99 | 27° / 81°F | 11° / 52°F | 7 mm | 10 |
| September | 99 | 23° / 73°F | 8° / 46°F | 7 mm | 8 |
| October | 70 | 17° / 63°F | 2° / 36°F | 34 mm | 5 |
| November | 8 | 9° / 48°F | -2° / 28°F | 51 mm | 3 |
| December | 0 | 3° / 37°F | -7° / 19°F | 104 mm | 2 |
Nearest destinations
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Mammoth Lakes: questions and answers
What kind of destination is Mammoth Lakes?
Mammoth Lakes is a alpine / mountain town in United States at 2,168 m elevation with a Mediterranean climate.
How many hours of sunshine does Mammoth Lakes get a year?
Mammoth Lakes gets about 3,564 hours of sunshine a year, at its best around June.
When is the best time to visit Mammoth Lakes?
The sunniest time to visit Mammoth Lakes is June, when the Sunshine Score peaks at 99/100 (with August and September close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Mammoth Lakes?
January is the least sunny month in Mammoth Lakes, scoring 0/100 with about 100 mm of rain.
How strong is the sun in Mammoth Lakes?
The typical midday UV index in Mammoth Lakes peaks around 10 (very high) in June, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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