Prineville Lake Acres, Oregon Weather
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Prineville Lake Acres weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Light Drizzle18%—73°51°—
- ThursdayJun 4Clear——71°43°-2°
- FridayJun 5Overcast——66°46°-5°
- SaturdayJun 6Overcast——56°42°-10°
- SundayJun 7Overcast——65°36°+9°
- MondayJun 8Light Drizzle33%0.02″58°49°-7°
- TuesdayJun 9Overcast20%—59°43°+1°
Ozone at AQI 39 now. AQI up 15 in the last 6 hours — air quality is degrading. With UV 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 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 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 by mid-afternoon.
- Present
- AQI 39
- UV peak
- 0.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 4.5 µg/m³, PM10 at 6.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.70
- Wind
- breezy
- 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
- 6:49 AM
- Moonset
- 3:57 PM
- In sign
- ♑︎ Capricorn
Rufous Hummingbirds Arrive
Prineville Lake Acres at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: May 11 (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 | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Prineville Lake Acres's warmest month is July (~68°F mean) and its coldest is December (~33°F). Rainfall peaks in May (1.4 inches) and bottoms out in September (0.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 1.1″ | 3 |
| February | 37° | 0.8″ | 3 |
| March | 42° | 0.9″ | 3 |
| April | 47° | 0.8″ | 3 |
| May | 55° | 1.4″ | 3 |
| June | 61° | 0.8″ | 3 |
| July | 68° | 0.4″ | 1 |
| August | 67° | 0.4″ | 1 |
| September | 61° | 0.3″ | 1 |
| October | 50° | 0.9″ | 3 |
| November | 40° | 1.2″ | 4 |
| December | 33° | 1.3″ | 3 |
Regional context
Prineville Lake Acres's climate, per the NOAA NCEI 1991-2020 normals from the nearest reporting station, runs cold-winter and warm-summer. January means hover near 34°F while July climbs to 68°F — a 34°F seasonal swing typical of northern-tier latitudes. Annual precipitation totals about 10.3 inches spread across roughly 29 days with measurable rain or snow.
Precipitation peaks in the cool season: May averages 1.4 inches across 3.4 days with measurable rain, mostly from frontal systems and winter storms, while September bottoms out at 0.3 inches across just 1.0 rainy days during the drier warm-season stretch. The pattern groups Prineville Lake Acres with places like Juniper Canyon, OR, Prineville, OR and Ochoco West, OR, places whose summer-dry rhythm and cool-season-wet recharge run on the same regional storm-track exposure.
The frost-sensitive growing window opens around late-May, when overnight lows reliably clear freezing for cool-season crops like peas, lettuce, spinach, and radishes. Warm-soil crops — tomatoes, peppers, eggplant — wait until soil temperatures reach the mid-50s°F, usually two weeks past the last-frost date. The window closes around early-October, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. Those dates are 30-year averages; the actual frost-free window in a given year can vary by 10-14 days at either end. Neighborhood-scale variation in elevation and cold-air pooling means the practical last-frost date inside Prineville Lake Acres can lag the regional mean by 5-10 days in low spots, and a bench position with good cold-air drainage can run a week ahead.
Similar climates: Juniper Canyon, OR, Prineville, OR, Ochoco West, OR, Pronghorn, OR, Redmond, OR.
Frequently asked
- When does it freeze in Prineville Lake Acres?
- Prineville Lake Acres's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Prineville Lake Acres?
- May is the wettest month with about 1.4 inches of rain on average; the city receives roughly 10 inches annually.
- What is the warmest month in Prineville Lake Acres?
- July is typically warmest, averaging about 68°F.
- What is the coldest month in Prineville Lake Acres?
- December is typically coldest, averaging about 33°F.
- When can I start a vegetable garden in Prineville Lake Acres?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Prineville Lake Acres get?
- Prineville Lake Acres averages about 29 rainy days per year.
- What hardiness zone is Prineville Lake Acres?
- Prineville Lake Acres'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
Prineville Lake Acres, Oregon sits in a warm-summer Mediterranean climate zone. January means hover near 34°F while July averages 68°F — a 34°F seasonal swing.
Across the year, Prineville Lake Acres receives about 10 inches of precipitation spread over roughly 29 rainy days.
The rhythm of the year is set by latitude (44.2°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.