Updated October 2026
Lake Mead National Recreation Area Weather by Month
Lake Mead National Recreation Area is warmest in July, when the nearest NOAA climate station averages a high of 109°F and a low of 82°F, and coldest in December, with an average high of 58°F and an average low of 37°F. February and July are the wettest months, with about 0.8 inches of precipitation each.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 4.5 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Lake Mead National Recreation Area can differ from these, particularly with elevation.
Warmest month
Jul
109°F avg high
Coldest month
Dec
37°F avg low
Longest days
Jun
14.4 h of daylight
Average weather at Lake Mead by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 60°F | 38°F | 0.7 in | 9.8 h |
| February | 65°F | 41°F | 0.8 in | 10.7 h |
| March | 73°F | 48°F | 0.5 in | 11.7 h |
| April | 83°F | 56°F | 0.4 in | 12.9 h |
| May | 93°F | 65°F | 0.5 in | 13.9 h |
| June | 104°F | 74°F | 0.0 in | 14.4 h |
| July | 109°F | 82°F | 0.8 in | 14.2 h |
| August | 107°F | 81°F | 0.3 in | 13.4 h |
| September | 99°F | 71°F | 0.3 in | 12.2 h |
| October | 84°F | 58°F | 0.5 in | 11.1 h |
| November | 69°F | 46°F | 0.5 in | 10.1 h |
| December | 58°F | 37°F | 0.5 in | 9.6 h |
| Year total | 5.8 in |
NOAA 1991–2020 climate normals from station USC00028516, 4.5 miles from the park's reference point. The station's snowfall normal is zero in all twelve months. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Lake Mead is at that time of year.
Lake Mead weather by season
Winter: December to February
Average highs climb from 58°F in December to 65°F in February, with average lows between 37°F and 41°F. Together the three months average 2 inches of precipitation, about 34% of the yearly total and more than in any other season. Daylight is at its shortest, about 9.6 hours in December.
Spring: March to May
Average highs climb from 73°F in March to 93°F in May, with average lows between 48°F and 65°F. The average high is 90°F or hotter in May. Together the three months average 1.4 inches of precipitation, about 24% of the yearly total. Daylight lengthens from about 11.7 hours in March to 13.9 in May.
Summer: June to August
Average highs peak at 109°F in July, between 104°F in June and 107°F in August, with average lows between 74°F and 82°F. The average high is 100°F or hotter in all three months. Together the three months average 1.1 inches of precipitation, about 19% of the yearly total and less than in any other season. Daylight is at its longest, about 14.4 hours in June.
Fall: September to November
Average highs fall from 99°F in September to 69°F in November, with average lows between 46°F and 71°F. The average high is 90°F or hotter in September. Together the three months average 1.3 inches of precipitation, about 22% of the yearly total. Daylight shortens from about 12.2 hours in September to 10.1 in November.
What the National Park Service says about the weather
Spring (April, May and June): Daytime highs 80 °F to 98 °F. Nighttime lows 50 °F to 66 °F Summer* (July, August and September): Daytime highs 89 °F to 103 °F (It can get up to 117 °F.) Fall (October, November and December): Daytime highs 59 °F to 83 °F. Nighttime lows 32 °F to 50 °F. Winter (January, February and March) Daytime highs 57 °F to 69 °F. Nighttime lows 30 °F to 40 °F. *Summer can be a dangerous time due to excessive heat. Some trails are closed for public safety.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Lake Mead
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 35.97°N, 114.35°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Lake Mead National Recreation Area →
Weather and crowds together
July, the warmest month, sees about 1.3× the visitors of the park's average month. June is the busiest month of the year and December the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Lake Mead National Recreation Area. For hotels, cabins and rentals close to the park, see where to stay near Lake Mead.
Where to stay near Lake Mead
Picked a month for Lake Mead National Recreation Area? Compare hotels, cabins and vacation rentals near the park with live availability and prices.
Top-rated places to stay near Lake Mead
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Frequently Asked Questions
July is the warmest month at Lake Mead National Recreation Area, with an average high of 109°F and an average low of 82°F. That is the 1991–2020 average at the nearest long-record NOAA station, 4.5 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
December is the coldest month at Lake Mead National Recreation Area, with an average low of 37°F and an average high of 58°F, based on NOAA 1991–2020 climate normals.
February and July are the wettest months, with about 0.8 inches of precipitation each. June is the driest, averaging close to zero. The station records about 5.8 inches of precipitation in an average year.
The nearest long-record NOAA station, 4.5 miles from the park's reference point, shows no measurable snowfall in any month of its 1991–2020 normals.
Weather at nearby parks
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88 mi away · warmest in July (92°F)
109 mi away · warmest in July (94°F)
118 mi away · warmest in July (100°F)
124 mi away · warmest in July (85°F)
142 mi away · warmest in July (69°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00028516), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.