Greenwich, Kansas Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Greenwich weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Showers34%0.07″84°66°—
- FridayJun 5Overcast——92°69°+8°
- SaturdayJun 6Drizzle34%—85°70°-7°
- SundayJun 7Light Showers48%0.05″88°67°+3°
- MondayJun 8Thunderstorm37%—95°72°+7°
- TuesdayJun 9Light Drizzle37%—96°74°+1°
- WednesdayJun 10Mostly Clear——96°74°0°
PM2.5 at 6.4 µg/m³ (AQI 36) with a 0.91 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 7 over the last 6 hours (steady decline since this morning).
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 31. Overcast through the UV peak window (cloud cover ~72%) — afternoon ozone should stay flat.
- Present
- AQI 31
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 6.4 µg/m³ (AQI 36) with a 0.91 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:51 AM
- Moonset
- 2:39 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Greenwich at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 3 (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.
SPC Convective Outlook
Storm Prediction Center — Greenwich
SPC has placed Greenwich in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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
Greenwich's warmest month is July (~82°F mean) and its coldest is January (~33°F). Rainfall peaks in May (5.2 inches) and bottoms out in January (0.8 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 33° | 0.8″ | 2 |
| February | 38° | 1.2″ | 3 |
| March | 47° | 2.3″ | 4 |
| April | 57° | 3.1″ | 5 |
| May | 67° | 5.2″ | 7 |
| June | 77° | 4.9″ | 7 |
| July | 82° | 4.0″ | 6 |
| August | 80° | 4.3″ | 5 |
| September | 72° | 3.0″ | 4 |
| October | 59° | 2.9″ | 4 |
| November | 46° | 1.4″ | 3 |
| December | 36° | 1.2″ | 2 |
Frequently asked
- When does it freeze in Greenwich?
- Greenwich's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Greenwich?
- May is the wettest month with about 5.2 inches of rain on average; the city receives roughly 34 inches annually.
- What is the warmest month in Greenwich?
- July is typically warmest, averaging about 82°F.
- What is the coldest month in Greenwich?
- January is typically coldest, averaging about 33°F.
- When can I start a vegetable garden in Greenwich?
- 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 Greenwich get?
- Greenwich averages about 52 rainy days per year.
- What hardiness zone is Greenwich?
- Greenwich'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
Greenwich, Kansas sits in a humid subtropical climate zone. January means hover near 33°F while July averages 82°F — a 48°F seasonal swing.
Across the year, Greenwich receives about 34 inches of precipitation spread over roughly 52 rainy days.
The rhythm of the year is set by latitude (37.8°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.