Rew, Pennsylvania Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
Rew weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Clear——74°43°—
- ThursdayJun 4Overcast——77°52°+3°
- FridayJun 5Overcast——78°56°+1°
- SaturdayJun 6Heavy Showers71%0.83″77°60°-1°
- SundayJun 7Drizzle66%—73°52°-4°
- MondayJun 8Overcast——74°48°+1°
- TuesdayJun 9Overcast——79°47°+5°
Ozone at AQI 41. AQI up 12 over the last 6 hours (gradual rise). Overcast through the UV peak window (cloud cover ~97%) — afternoon ozone should stay flat.
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 41. Overcast through the UV peak window (cloud cover ~97%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
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
- 3:12 AM
- Moonset
- 12:04 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Rew at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: April 27 (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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Rew's warmest month is July (~67°F mean) and its coldest is January (~23°F). Rainfall peaks in May (4.2 inches) and bottoms out in February (2.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 2.7″ | 7 |
| February | 25° | 2.1″ | 6 |
| March | 33° | 3.0″ | 8 |
| April | 45° | 3.5″ | 9 |
| May | 55° | 4.2″ | 9 |
| June | 63° | 4.2″ | 9 |
| July | 67° | 4.2″ | 8 |
| August | 66° | 3.9″ | 7 |
| September | 59° | 3.6″ | 7 |
| October | 48° | 4.0″ | 8 |
| November | 38° | 3.2″ | 7 |
| December | 29° | 3.2″ | 8 |
Regional context
Rew's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 23°F to a July mean of 67°F — a 44°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 41.9 inches spread across roughly 94 days with measurable rain or snow each year.
Precipitation runs summer-dominant here: May averages 4.2 inches across 9.3 days with measurable rain, driven mostly by warm-season storms and thunderstorm activity, while February drops to just 2.1 inches across 6.2 rainy days under drier cool-season air. That summer-storm-driven distribution puts Rew in a cohort with places like Lewis Run, PA, Foster Brook, PA and Bradford, PA, all of which depend on warm-season convective activity for the bulk of their annual moisture.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. 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 mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. These are 30-year central tendencies; year-to-year frost dates can move by up to two weeks. Local features matter: a south-facing slope inside Rew typically runs 3-5 days ahead of the regional last-frost date, while a low-lying lot along a creek or drainage can lag the same date by a week or more on calm clear nights.
Similar climates: Lewis Run, PA, Foster Brook, PA, Bradford, PA, University of Pittsburgh Bradford, PA, Smethport, PA.
Frequently asked
- When does it freeze in Rew?
- Rew's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Rew?
- May is the wettest month with about 4.2 inches of rain on average; the city receives roughly 42 inches annually.
- What is the warmest month in Rew?
- July is typically warmest, averaging about 67°F.
- What is the coldest month in Rew?
- January is typically coldest, averaging about 23°F.
- When can I start a vegetable garden in Rew?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Rew get?
- Rew averages about 94 rainy days per year.
- What hardiness zone is Rew?
- Rew'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
Rew, Pennsylvania sits in a warm-summer humid continental climate zone. January means hover near 23°F while July averages 67°F — a 44°F seasonal swing.
Across the year, Rew receives about 42 inches of precipitation spread over roughly 94 rainy days.
The rhythm of the year is set by latitude (41.9°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.