Peoria, Arizona Weather
Heat hardens the dust. Day 78 of spring. Read this microseason across nine climate regions →
Peoria weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——105°75°—
- FridayJun 5Clear——105°72°0°
- SaturdayJun 6Overcast——101°73°-4°
- SundayJun 7Overcast——100°74°-1°
- MondayJun 8Overcast——99°71°-1°
- TuesdayJun 9Clear——100°68°+1°
- WednesdayJun 10Partly Cloudy——92°71°-8°
AQI 68 (Moderate), driven by PM10. AQI up 9 over the last 6 hours (gradual rise). PM2.5 at 28.5 µg/m³, PM10 at 240.3 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 AM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 45 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 by mid-afternoon.
- Present
- AQI 45
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 28.5 µg/m³, PM10 at 240.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.12
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 6:17 AM
- Moonset
- 4:54 PM
- In sign
- ♒︎ Aquarius
Heat hardens the dust
Peoria at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: March 10 (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 5, 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 brings Peoria's highest temperatures, with averages around 91°F, while December delivers the coldest conditions at roughly 52°F. February sees peak rainfall at 1.4 inches, contrasting sharply with June's minimal 0.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 52° | 1.4″ | 2 |
| February | 55° | 1.4″ | 3 |
| March | 60° | 1.0″ | 1 |
| April | 66° | 0.3″ | 1 |
| May | 76° | 0.1″ | 0 |
| June | 86° | 0.1″ | 0 |
| July | 91° | 0.9″ | 3 |
| August | 90° | 1.1″ | 3 |
| September | 84° | 1.1″ | 2 |
| October | 72° | 0.7″ | 1 |
| November | 60° | 0.7″ | 2 |
| December | 52° | 0.9″ | 2 |
Regional context
Peoria falls within the hot desert climate region, sharing temperature ranges, seasonal patterns, and growing conditions with other cities in this climate zone.
Similar climates: Phoenix, AZ, Tucson, AZ, Mesa, AZ, Gilbert, AZ, Chandler, AZ.
Naturalist notes
Palo verde trees burst into bright yellow bloom across Peoria during late March and April, their flowers appearing before the desert heat intensifies.
May brings the northward migration of lesser goldfinches, their distinctive calls echoing through residential areas as they seek nesting sites.
Frequently asked
- When does it freeze in Peoria?
- Spring's final frost usually occurs around mid-March in Peoria, while the first fall frost typically arrives around mid-December.
- What is the rainy season in Peoria?
- February stands as the wettest month, delivering about 1.4 inches of rain on average, while the city's total annual precipitation reaches roughly 10 inches.
- What is the warmest month in Peoria?
- July typically records the warmest temperatures, with averages around 91°F.
- What is the coldest month in Peoria?
- December usually brings the coldest weather, averaging about 52°F.
- When can I start a vegetable garden in Peoria?
- Cool-season vegetables like peas and lettuce can be planted around the last spring frost in mid-March, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks after that date.
- How many rainy days does Peoria get?
- Peoria experiences about 19 rainy days per year on average.
- What hardiness zone is Peoria?
- Peoria's USDA hardiness zone depends on its lowest average winter temperatures; the USDA's online lookup tool can provide the current zone designation using the city's ZIP code.
Climate
Peoria, Arizona experiences a hot desert climate throughout the year. Winter temperatures in January hover near 52°F, while summer heat in July averages 91°F — creating a 39°F seasonal swing.
Annual precipitation totals about 10 inches, falling across roughly 19 rainy days throughout the year.
Geography shapes Peoria's weather patterns through its latitude at 33.8°N, proximity to large water bodies, and elevation. These factors determine what grows in the area, when frost threatens, and the daily weather patterns residents can expect.