Congress, Arizona Weather
The dry breath stills. Day 88 of spring. Read this microseason across nine climate regions →
Congress weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast18%—99°76°—
- TuesdayJun 16Overcast——101°77°+2°
- WednesdayJun 17Overcast——99°76°-2°
- ThursdayJun 18Clear——96°74°-3°
- FridayJun 19Clear——94°73°-2°
- SaturdayJun 20Clear——93°70°-1°
- SundayJun 21Clear——91°66°-2°
AQI 34 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 45 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 67 around 1 PM.
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 45 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 67 around 1 PM.
- Present
- AQI 45
- UV peak
- 11.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 67
PM × Wind × Precip
PM2.5 at 6.5 µg/m³, PM10 at 17.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.38
- 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
- 5:32 AM
- Moonset
- 8:00 PM
- In sign
- ♋︎ Cancer
The dry breath stills
Congress at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: March 12 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Congress
- Mon99°76°18%
- Tue101°77°3%
- Wed99°76°6%
- Thu96°74°0%
- Fri94°73°0%
- Sat93°70°0%
- Sun91°66°0%
- Mon93°67°0%
- Tue98°68°0%
- Wed104°74°0%
- Thu105°81°1%
- Fri103°74°3%
- Sat103°76°10%
- Sun105°76°16%
- Mon107°76°6%
- Tue108°80°6%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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.
SPC Convective Outlook
Storm Prediction Center — Congress
SPC has placed Congress in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · June 11–15
The dry breath stills
Wind drops to nothing. The desert holds its breath. Afternoon dew points climb. Saguaro shadows grow softer as haze thickens on the horizon.
Day 166 of 365 · Wedge 33 of 72
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 is Congress's warmest stretch (~88°F) and December its coldest (~49°F); precipitation crests in August at 2.0 inches and ebbs in June to 0.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 50° | 1.2″ | 3 |
| February | 52° | 1.6″ | 3 |
| March | 58° | 1.0″ | 2 |
| April | 64° | 0.3″ | 1 |
| May | 72° | 0.2″ | 0 |
| June | 81° | 0.1″ | 0 |
| July | 88° | 1.1″ | 2 |
| August | 87° | 2.0″ | 3 |
| September | 80° | 1.0″ | 2 |
| October | 68° | 0.5″ | 1 |
| November | 57° | 0.8″ | 1 |
| December | 49° | 1.1″ | 2 |
Regional context
Per NOAA NCEI 1991-2020 normals, Congress runs from a 50°F January mean to 88°F in July, a 39°F seasonal spread, with near 10.9 inches of precipitation across about 21 wet days.
No season owns Congress's rain: August reaches 2.0 inches across 3.4 days and June keeps 0.1 inches on 0.2, an even spread through Congress's year. That lines Congress up with places like Yarnell, AZ, Peeples Valley, AZ and Wickenburg, AZ, fed by overlapping storm tracks.
Hard freezes are rare in Congress: the coldest month averages 49°F, so Congress's growing window runs most of the year. July is the hottest stretch near 88°F, pushing cool-season crops to the milder shoulder months. Within Congress, low or inland lots lose 3-5°F overnight versus Congress's coastal ground.
Similar climates: Yarnell, AZ, Peeples Valley, AZ, Wickenburg, AZ, Wilhoit, AZ, Aguila, AZ.
Frequently asked
- When does it freeze in Congress?
- Frost typically leaves Congress by mid-March and returns to Congress near mid-December.
- What is the rainy season in Congress?
- Congress sees its heaviest rain in August (around 2.0 inches), part of roughly 11 inches a year.
- What is the warmest month in Congress?
- Congress peaks in July, when the mean runs near 88°F.
- What is the coldest month in Congress?
- December is Congress's coldest month, averaging about 49°F.
- When can I start a vegetable garden in Congress?
- Hardy spring crops go in near mid-March in Congress; tender peppers and squash wait 10–14 days.
- How many rainy days does Congress get?
- Congress averages about 21 days with measurable rain or snow each year.
- What hardiness zone is Congress?
- With December around 49°F, Congress's zone reflects that minimum — the USDA ZIP map confirms Congress's band.
- What is the 10-day forecast for Congress?
- Congress's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Congress?
- See this week's day-by-day rain chances for Congress in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Congress?
- Current conditions for Congress and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Congress forecast updated?
- The Congress forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Congress?
- Day length in Congress peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Congress?
- The next few days in Congress's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The hot desert climate of Congress, Arizona carries typical Januarys near 50°F and Julys around 88°F — 38°F of seasonal travel.
Rain and snow bring Congress roughly 11 inches a year across approximately 21 measurable-precipitation days.
Congress sits at 34.2°N; that 38°F seasonal swing frames planting windows and frost dates across Congress.
ZIP codes in Congress
- 85332