Scottsdale, Arizona Weather
Heat hardens the dust. Day 77 of spring. Read this microseason across nine climate regions →
Scottsdale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——104°81°—
- FridayJun 5Clear——102°75°-2°
- SaturdayJun 6Overcast——99°75°-3°
- SundayJun 7Overcast——98°80°-1°
- MondayJun 8Clear——97°77°-1°
- TuesdayJun 9Clear——101°83°+4°
- WednesdayJun 10Overcast——92°84°-9°
PM2.5 at 13.5 µg/m³, PM10 at 55.6 µg/m³ — typical background levels with no transport signature. AQI flat over the last 6 hours (within ±3 points).
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 35 now. With UV 9.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 42 by mid-afternoon.
- Present
- AQI 35
- UV peak
- 9.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 42
PM × Wind × Precip
PM2.5 at 13.5 µg/m³, PM10 at 55.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.24
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:40 AM
- Moonset
- 3:51 PM
- In sign
- ♒︎ Aquarius
Heat hardens the dust
Scottsdale at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: March 9 (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 4, 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 | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
July stands as Scottsdale's warmest month with mean temperatures around 88°F, while December brings the coldest conditions at roughly 53°F. Rainfall follows its own calendar, peaking in February at 1.7 inches before dropping to just 0.1 inches during June.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 53° | 1.5″ | 5 |
| February | 55° | 1.7″ | 6 |
| March | 60° | 1.5″ | 5 |
| April | 66° | 0.5″ | 2 |
| May | 74° | 0.3″ | 1 |
| June | 84° | 0.1″ | 1 |
| July | 88° | 1.0″ | 3 |
| August | 87° | 1.3″ | 4 |
| September | 82° | 0.8″ | 3 |
| October | 72° | 0.9″ | 3 |
| November | 61° | 0.8″ | 3 |
| December | 53° | 1.4″ | 5 |
Regional context
Scottsdale belongs to a hot desert climate region that extends across nearby cities. This shared classification means similar temperature ranges, seasonal patterns, and growing conditions throughout the area.
Similar climates: Phoenix, AZ, Tucson, AZ, Mesa, AZ, Gilbert, AZ, Chandler, AZ.
Naturalist notes
Desert lupines begin their purple bloom across the Sonoran landscape during late March and April.
Curve-billed thrashers start their nesting season in April, with pairs building thorny homes in cholla and palo verde trees.
Frequently asked
- When does it freeze in Scottsdale?
- Spring's final frost typically occurs around mid-March in Scottsdale, while the first fall frost returns around mid-December.
- What is the rainy season in Scottsdale?
- February delivers the most rainfall at approximately 1.7 inches on average, contributing to the city's annual total of roughly 12 inches.
- What is the warmest month in Scottsdale?
- July typically records the highest temperatures, with averages around 88°F.
- What is the coldest month in Scottsdale?
- December usually brings the coldest weather, averaging about 53°F.
- When can I start a vegetable garden in Scottsdale?
- Plant cool-season crops like peas and lettuce around the last spring frost in mid-March. Warm-season varieties such as tomatoes and peppers should wait 1–2 weeks after that date.
- How many rainy days does Scottsdale get?
- Scottsdale records an average of about 41 rainy days each year.
- What hardiness zone is Scottsdale?
- Check the USDA's online lookup tool using Scottsdale's ZIP code to find the current hardiness zone designation, which reflects the area's lowest average winter temperatures.
Climate
Scottsdale, Arizona sits in a hot desert climate zone. Winter temperatures in January hover near 53°F, while July brings averages of 88°F — creating a 35°F seasonal swing.
Annual precipitation totals about 12 inches across roughly 41 rainy days throughout the year.
Geography shapes the local weather patterns through latitude (33.7°N), proximity to large water bodies, and elevation. These factors determine what grows here, when frost threatens, and the daily weather patterns residents experience.