Henderson, Texas Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Henderson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast54%—81°70°—
- FridayJun 5Overcast20%—87°70°+6°
- SaturdayJun 6Heavy Drizzle51%—88°72°+1°
- SundayJun 7Light Showers64%—85°72°-3°
- MondayJun 8Overcast13%—89°72°+4°
- TuesdayJun 9Mostly Clear——91°71°+2°
- WednesdayJun 10Clear——93°71°+2°
AQI 35 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 34. 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 34. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
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
- 5:01 AM
- Moonset
- 3:44 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Henderson at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: February 28 (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 — Henderson
SPC has placed Henderson 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
Henderson's warmest month is August (~83°F mean) and its coldest is January (~47°F). Rainfall peaks in June (4.8 inches) and bottoms out in July (3.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 47° | 4.1″ | 6 |
| February | 51° | 4.1″ | 6 |
| March | 58° | 4.6″ | 6 |
| April | 65° | 4.4″ | 5 |
| May | 73° | 4.7″ | 6 |
| June | 80° | 4.8″ | 7 |
| July | 83° | 3.4″ | 5 |
| August | 83° | 3.6″ | 5 |
| September | 77° | 3.8″ | 5 |
| October | 67° | 4.2″ | 5 |
| November | 56° | 4.1″ | 6 |
| December | 49° | 4.6″ | 6 |
Regional context
Henderson'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 83°F and January settles around 47°F — a 36°F swing reflecting the lower-latitude position at 32.2°N. Yearly precipitation totals roughly 50.4 inches over about 67 rainy days.
Rainfall stays relatively even across the calendar: June tops out at 4.8 inches across 6.6 days with measurable rain, and July settles around 3.4 inches across 4.8 rainy days — a comparatively narrow seasonal range. The temperate, evenly-distributed pattern groups Henderson with places like New London, TX, Overton, TX and Arp, TX, 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 August at a mean of 83°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 Henderson, 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: New London, TX, Overton, TX, Arp, TX, Lake Cherokee, TX, Kilgore, TX.
Frequently asked
- When does it freeze in Henderson?
- Henderson's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Henderson?
- June is the wettest month with about 4.8 inches of rain on average; the city receives roughly 50 inches annually.
- What is the warmest month in Henderson?
- August is typically warmest, averaging about 83°F.
- What is the coldest month in Henderson?
- January is typically coldest, averaging about 47°F.
- When can I start a vegetable garden in Henderson?
- 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 Henderson get?
- Henderson averages about 67 rainy days per year.
- What hardiness zone is Henderson?
- Henderson'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
Henderson, Texas sits in a humid subtropical climate zone. January means hover near 47°F while July averages 83°F — a 36°F seasonal swing.
Across the year, Henderson receives about 50 inches of precipitation spread over roughly 67 rainy days.
The rhythm of the year is set by latitude (32.2°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.