Mammoth Lakes, CA weather in July
Expect mild, mostly dry weather in Mammoth Lakes in July, with highs near 78°F and lows near 49°F. Rain falls on about 4 days. It is one of the warmest months in Mammoth Lakes. Great for outdoor plans.
- Normal high
- 78°F
- Normal low
- 49°F
- Wet days
- 4
- 0.5 in total
- Daylight
- 14.5 h
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 75°F | 79°F |
| Normal low | 47°F | 49°F |
| Sunrise / sunset | 5:38 am / 8:21 pm | 5:58 am / 8:05 pm |
| Daylight | 14.7 h | 14.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)20 of 31
- Hot dayshigh 90°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow4 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 0.5 in. Days with half an inch or more are rare.
How July varies from year to year
- Warmest July, 1991-20202017: average high 81°F
- Coolest July2015: average high 74°F
- Wettest July2015: 1.9 in
- Driest July1995: no measurable precipitation
- Highest reading91°F (July 11, 2002)
- Lowest reading25°F (July 1, 1997)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 70°F | 78°F | 77°F |
| Normal low | 42°F | 49°F | 47°F |
| Wet days | 3 | 4 | 2 |
| Comfortable days | 21 | 20 | 23 |
| Daylight | 14.7 h | 14.5 h | 13.6 h |
Highs change by +8°F from June and -1°F into August.
Nearby alternatives in July
- Warmer: Yosemite Valley, CA34 mi · high 89°F · 1 wet day
- Drier: Fresno, CA76 mi · high 98°F · 0 wet days
- Cooler: Salinas, CA162 mi · high 71°F · 0 wet days
How Mammoth Lakes ranks in July
- Normal high338th warmest of 378 cities; 46th of 60 in California
- Wet days74th driest of 378
What to pack for Mammoth Lakes in July
- Layers – afternoons near 78°F but nights near 49°F
- Sunglasses and sunscreen – about 14.5 hours of daylight and highs near 78°F
Heating and cooling
July has 86 heating degree days and 34 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Mammoth Lakes in July?
The normal high is 78°F and the normal low is 49°F. From 1991 to 2020 the hottest July reading was 91°F (most recently on July 11, 2002).
Does it rain a lot in Mammoth Lakes in July?
About 4 days in July have at least 0.01 in of precipitation, and the normal total is 0.5 in. The wettest July in 1991-2020 was in 2015 (1.9 in); the driest was in 1995, with no measurable precipitation.
Is July a good time to visit Mammoth Lakes?
July ranks 4th of 12 months on our comfort score for Mammoth Lakes (83 out of 100). It has about 20 comfortable days (judged by temperature only). The best months are June, August and September.
Where the numbers come from
- Temperature, rain and frost dates: Mammoth Lakes RS (USC00045280), 0.6 mi E of the city center, 7,804 ft (69 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Lee Vining (USC00044881), 23 mi NNW of the city center, 6,797 ft (1,076 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).