Cedarville, Maryland Weather
Fireflies rise from the lawn. Day 78 of spring. Read this microseason across nine climate regions →
Cedarville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——92°62°—
- SaturdayJun 6Overcast14%—95°66°+3°
- SundayJun 7Drizzle14%—89°69°-6°
- MondayJun 8Overcast——79°61°-10°
- TuesdayJun 9Overcast——77°57°-2°
- WednesdayJun 10Light Drizzle17%0.05″78°63°+1°
- ThursdayJun 11Light Drizzle17%—78°66°0°
AQI 42 (Good), driven by PM2.5. AQI down 60 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
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 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 4:03 AM
- Moonset
- 2:15 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Cedarville at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: April 8 (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.
SPC Convective Outlook
Storm Prediction Center — Cedarville
SPC has placed Cedarville in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 | — | — |
| 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
Cedarville's warmest month is July (~78°F mean) and its coldest is January (~34°F). Rainfall peaks in September (4.5 inches) and bottoms out in February (2.7 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 3.0″ | 6 |
| February | 36° | 2.7″ | 5 |
| March | 44° | 3.9″ | 7 |
| April | 55° | 3.4″ | 7 |
| May | 64° | 4.1″ | 7 |
| June | 73° | 4.2″ | 7 |
| July | 78° | 4.2″ | 6 |
| August | 76° | 4.1″ | 6 |
| September | 69° | 4.5″ | 6 |
| October | 57° | 4.1″ | 5 |
| November | 47° | 3.3″ | 5 |
| December | 38° | 3.5″ | 7 |
Regional context
Cedarville's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 34°F to a July mean of 78°F — a 43°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 45 inches spread across roughly 74 days with measurable rain or snow each year.
Rainfall stays relatively even across the calendar: September tops out at 4.5 inches across 5.5 days with measurable rain, and February settles around 2.7 inches across 5.3 rainy days — a comparatively narrow seasonal range. That even-rainfall rhythm puts Cedarville alongside places like Baden, MD, Brandywine, MD and Waldorf, MD — places without a single dominant storm season, where moisture arrives steadily across the calendar.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like peas, lettuce, spinach, and radishes. Heat-loving transplants like tomatoes, peppers, and squash generally hold off for another 10-14 days to clear the last spring frost risk window. The window closes around mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. These dates represent 30-year central tendencies; actual year-to-year variation can shift either bookend by 7-14 days, and local microclimate features within Cedarville — cold-air drainage on calm clear nights, slope aspect, distance from any nearby lake or river — can push the practical frost window earlier or later than the regional average.
Similar climates: Baden, MD, Brandywine, MD, Waldorf, MD, Croom, MD, Marlton, MD.
Frequently asked
- When does it freeze in Cedarville?
- Cedarville's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Cedarville?
- September is the wettest month with about 4.5 inches of rain on average; the city receives roughly 45 inches annually.
- What is the warmest month in Cedarville?
- July is typically warmest, averaging about 78°F.
- What is the coldest month in Cedarville?
- January is typically coldest, averaging about 34°F.
- When can I start a vegetable garden in Cedarville?
- 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 Cedarville get?
- Cedarville averages about 74 rainy days per year.
- What hardiness zone is Cedarville?
- Cedarville'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
Cedarville, Maryland sits in a warm-summer humid continental climate zone. January means hover near 34°F while July averages 78°F — a 43°F seasonal swing.
Across the year, Cedarville receives about 45 inches of precipitation spread over roughly 74 rainy days.
The rhythm of the year is set by latitude (38.7°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.