Zwolle, Louisiana Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Zwolle weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Drizzle49%0.04″81°70°—
- FridayJun 5Overcast15%—87°67°+6°
- SaturdayJun 6Light Drizzle48%—93°72°+6°
- SundayJun 7Light Drizzle52%—93°72°0°
- MondayJun 8Overcast12%—94°73°+1°
- TuesdayJun 9Mostly Clear——95°71°+1°
- WednesdayJun 10Clear——97°71°+2°
Ozone at AQI 41. AQI flat over the last 6 hours (within ±4 points). Overcast through the UV peak window (cloud cover ~99%) — 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 ~99%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 4.7 µg/m³ (AQI 26) with a 0.89 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- calm
- 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
- 4:55 AM
- Moonset
- 3:40 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Zwolle at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: February 25 (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 — Zwolle
SPC has placed Zwolle in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- 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 | 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
Zwolle's warmest month is July (~82°F mean) and its coldest is January (~47°F). Rainfall peaks in December (6.4 inches) and bottoms out in September (3.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 47° | 5.3″ | 6 |
| February | 50° | 4.4″ | 6 |
| March | 57° | 5.2″ | 6 |
| April | 64° | 4.9″ | 5 |
| May | 72° | 5.2″ | 5 |
| June | 79° | 4.9″ | 6 |
| July | 82° | 4.2″ | 6 |
| August | 81° | 3.5″ | 5 |
| September | 76° | 3.4″ | 5 |
| October | 65° | 4.4″ | 5 |
| November | 56° | 4.5″ | 5 |
| December | 48° | 6.4″ | 7 |
Regional context
Zwolle'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 82°F and January settles around 47°F — a 35°F swing reflecting the lower-latitude position at 31.6°N. Yearly precipitation totals roughly 56.3 inches over about 66 rainy days.
Rainfall stays relatively even across the calendar: December tops out at 6.4 inches across 6.9 days with measurable rain, and September settles around 3.4 inches across 4.5 rainy days — a comparatively narrow seasonal range. The temperate, evenly-distributed pattern groups Zwolle with places like Noble, LA, Belmont, LA and Converse, LA, where seasonal storm tracks deliver moisture more uniformly than the continental interior.
Hard freezes are uncommon here: the coldest month averages 47°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 July at a mean of 82°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 Zwolle, 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: Noble, LA, Belmont, LA, Converse, LA, Many, LA, Fort Jesup, LA.
Frequently asked
- When does it freeze in Zwolle?
- Zwolle's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Zwolle?
- December is the wettest month with about 6.4 inches of rain on average; the city receives roughly 56 inches annually.
- What is the warmest month in Zwolle?
- July is typically warmest, averaging about 82°F.
- What is the coldest month in Zwolle?
- January is typically coldest, averaging about 47°F.
- When can I start a vegetable garden in Zwolle?
- 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 Zwolle get?
- Zwolle averages about 66 rainy days per year.
- What hardiness zone is Zwolle?
- Zwolle'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
Zwolle, Louisiana sits in a humid subtropical climate zone. January means hover near 47°F while July averages 82°F — a 35°F seasonal swing.
Across the year, Zwolle receives about 56 inches of precipitation spread over roughly 66 rainy days.
The rhythm of the year is set by latitude (31.6°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.