Palominas, Arizona Weather
Heat hardens the dust. Day 76 of spring. Read this microseason across nine climate regions →
Palominas weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——94°59°—
- ThursdayJun 4Overcast——93°63°-1°
- FridayJun 5Overcast——93°65°0°
- SaturdayJun 6Overcast——94°65°+1°
- SundayJun 7Overcast——94°64°0°
- MondayJun 8Overcast——92°65°-2°
- TuesdayJun 9Overcast——97°65°+5°
Ozone at AQI 55 now. AQI up 11 over the last 6 hours (gradual rise). With UV 10 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 76 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 55 now. With UV 10 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 76 by mid-afternoon.
- Present
- AQI 55
- UV peak
- 10.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 76
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
- 4:46 AM
- Moonset
- 2:50 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Palominas at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: February 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.
SPC Convective Outlook
Storm Prediction Center — Palominas
SPC has placed Palominas 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.
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
Palominas's warmest month is July (~76°F mean) and its coldest is January (~46°F). Rainfall peaks in August (4.8 inches) and bottoms out in May (0.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 46° | 1.6″ | 3 |
| February | 49° | 1.5″ | 4 |
| March | 54° | 1.0″ | 3 |
| April | 60° | 0.3″ | 1 |
| May | 67° | 0.2″ | 1 |
| June | 76° | 0.8″ | 2 |
| July | 76° | 4.6″ | 10 |
| August | 74° | 4.8″ | 8 |
| September | 71° | 2.1″ | 4 |
| October | 63° | 1.2″ | 2 |
| November | 54° | 0.8″ | 2 |
| December | 46° | 1.9″ | 3 |
Regional context
Palominas's climate, drawn from NOAA NCEI 1991-2020 normals at the nearest station, runs warm year-round with a milder seasonal range. July means peak near 76°F and January settles around 46°F — a 30°F swing reflecting the lower-latitude position at 31.4°N. Yearly precipitation totals roughly 20.8 inches over about 43 rainy days.
Precipitation runs summer-dominant here: August averages 4.8 inches across 8.4 days with measurable rain, driven mostly by warm-season storms and thunderstorm activity, while May drops to just 0.2 inches across 0.8 rainy days under drier cool-season air. That wet-warm-summer pattern groups Palominas with places like Miracle Valley, AZ, Sierra Vista Southeast, AZ and Naco, AZ — a regional cohort where summer thunderstorm season carries more than half the annual moisture.
Hard freezes are uncommon here: the coldest month averages 46°F, well above the freezing threshold, so the growing window stretches across most of the year. Cool-season crops can be planted in late fall through early spring, and warm-season transplants tolerate the local winter unless an unusual frontal passage drops temperatures below the 30-year normal. The hottest stretch arrives in June at a mean of 76°F, which limits cool-season vegetables to the shoulder months on either side of the summer peak. These figures are 1991-2020 averages; isolated cold snaps can still occur outside the normal range. Within Palominas, microsite features — slope aspect, proximity to water, urban heat-island effects — can shift the practical risk window by 5-10 days in either direction.
Similar climates: Miracle Valley, AZ, Sierra Vista Southeast, AZ, Naco, AZ, Bisbee, AZ, Sierra Vista, AZ.
Frequently asked
- When does it freeze in Palominas?
- Palominas's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Palominas?
- August is the wettest month with about 4.8 inches of rain on average; the city receives roughly 21 inches annually.
- What is the warmest month in Palominas?
- July is typically warmest, averaging about 76°F.
- What is the coldest month in Palominas?
- January is typically coldest, averaging about 46°F.
- When can I start a vegetable garden in Palominas?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-March); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Palominas get?
- Palominas averages about 43 rainy days per year.
- What hardiness zone is Palominas?
- Palominas'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
Palominas, Arizona sits in a hot desert climate zone. January means hover near 46°F while July averages 76°F — a 30°F seasonal swing.
Across the year, Palominas receives about 21 inches of precipitation spread over roughly 43 rainy days.
The rhythm of the year is set by latitude (31.4°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.