Henderson, Nevada Weather
Heat hardens the dust. Day 76 of spring. Read this microseason across nine climate regions →
Henderson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——103°79°—
- ThursdayJun 4Clear——105°83°+2°
- FridayJun 5Clear——103°80°-2°
- SaturdayJun 6Overcast——99°78°-4°
- SundayJun 7Overcast——96°73°-3°
- MondayJun 8Partly Cloudy——95°71°-1°
- TuesdayJun 9Clear——94°70°-1°
Ozone at AQI 39 now. AQI down 8 over the last 6 hours (steady decline since this morning). With UV 8.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 31 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 39 now. With UV 8.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 31 by mid-afternoon.
- Present
- AQI 39
- UV peak
- 8.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 31
PM × Wind × Precip
PM2.5/PM10 ratio 0.55 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.55
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 5:20 AM
- Moonset
- 2:57 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Henderson at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: March 23 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July brings Henderson's warmest temperatures (~93°F mean) while December delivers the coldest (~48°F). Rainfall reaches its peak in February (0.8 inches) and drops to nothing in June (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 50° | 0.6″ | 2 |
| February | 54° | 0.8″ | 2 |
| March | 61° | 0.4″ | 1 |
| April | 68° | 0.2″ | 1 |
| May | 77° | 0.1″ | 0 |
| June | 88° | 0.0″ | 0 |
| July | 93° | 0.4″ | 1 |
| August | 92° | 0.3″ | 1 |
| September | 84° | 0.3″ | 1 |
| October | 70° | 0.3″ | 1 |
| November | 57° | 0.3″ | 1 |
| December | 48° | 0.5″ | 1 |
Regional context
Henderson falls within a hot desert climate region. This classification groups together nearby cities that share similar temperature ranges, seasonal patterns, and growing conditions.
Similar climates: Las Vegas, NV, North Las Vegas, NV, Enterprise, NV, Spring Valley, NV, Sunrise Manor, NV.
Naturalist notes
Late April brings the desert willow's first blooms, their orchid-like flowers appearing as spring temperatures climb past the frost line.
Cactus wrens begin their peak nesting season in May, their chattering calls echoing from cholla and palo verde as pairs defend territory.
Frequently asked
- When does it freeze in Henderson?
- Henderson's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Henderson?
- February is the wettest month with about 0.8 inches of rain on average; the city receives roughly 4 inches annually.
- What is the warmest month in Henderson?
- July is typically warmest, averaging about 93°F.
- What is the coldest month in Henderson?
- December is typically coldest, averaging about 48°F.
- When can I start a vegetable garden in Henderson?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Henderson get?
- Henderson averages about 11 rainy days per year.
- What hardiness zone is Henderson?
- Henderson's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Henderson, Nevada experiences a hot desert climate. January temperatures hover near 50°F while July averages 93°F — a 44°F seasonal swing.
Throughout the year, Henderson receives about 4 inches of precipitation spread over roughly 11 rainy days.
Latitude (36.0°N), proximity to large water bodies, and elevation determine the rhythm of the year. These factors shape what grows here, when frost is likely, and what the weather story looks like day to day.