Fresno, California Weather
Ceanothus blooms again. Day 93 of summer. Read this microseason across nine climate regions →
Fresno weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 7:15 AM PDT · Open-Meteo
- TodaySep 21Clear later——88°60°—
- TuesdaySep 22Clear——89°60°+1°
- WednesdaySep 23Clear——98°65°+9°
- ThursdaySep 24Mostly Clear——101°75°+3°
- FridaySep 25Overcast——94°71°-7°
- SaturdaySep 26Overcast——95°72°+1°
- SundaySep 27Partly Cloudy——89°67°-6°
Air quality now AQI 129 · Unhealthy for Sensitive Groups
AQI 129 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 79.6 µg/m³ (AQI 168) with a 0.94 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 79.6 µg/m³ (AQI 168) with a 0.94 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.94
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:26 PM
- Moonset
- 1:35 AM
- In sign
- ♑︎ Capricorn
Ceanothus blooms again
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Fresno at a glance
- Today vs. normal: Today averages 74°F (high 88°F, low 60°F), about the 75°F normal for Sep 21
- Last frost: January 14 (1991–2020 median, NOAA station 7 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant tomatoes, peppers, beans, squash, fall brassicas, carrots; harvest beans, summer squash, winter squash
16-Day Forecast — Fresno
- Mon88°60°2%
- Tue89°60°1%
- Wed98°65°0%
- Thu101°75°0%
- Fri94°71°0%
- Sat95°72°0%
- Sun89°67°1%
- Mon88°65°1%
- Tue94°70°3%
- Wed100°74°8%
- Thu101°77°5%
- Fri101°79°6%
- Sat100°80°3%
- Sun106°82°6%
- Mon98°77°5%
- Tue97°74°6%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Fresno
Interactive wind and temperature map centered on Fresno — it loads in your browser. Open the full weather map.
Right now in the garden
Peak growing season
As of September 21, the growing season is at its peak — the first frost (around December 14) is weeks away. Fall transplants go in about 10–12 weeks before the first frost, September 21 to October 5 here. This city's planting calendar for September: plant tomatoes, peppers, beans, squash, fall brassicas, and carrots; harvest beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Fresno
SPC includes Fresno in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Fresno
Fresno sits in Fresno County, where the year’s longest day runs 14h 41m of daylight and its shortest just 9h 38m — a swing of +5h 3m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Los Angeles, the state’s largest city, lies about 200 miles to the SSE. The nearest town Fresno tracks is Yosemite Lakes, roughly 28 miles to the N.
Air quality in Fresno
Air quality in Fresno’s county has trended cleaner since 2020; its cleanest year on record was 2025 (median AQI 61). See the full air-quality history for Fresno.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | radishes, fall brassicas, carrots |
| February | — | lettuce, peas, spinach, radishes |
| March | — | lettuce, peas, spinach, radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas |
| May | tomatoes, peppers, beans, squash | summer squash, garlic |
| June | squash | tomatoes, peppers, beans, summer squash |
| July | beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash | tomatoes, summer squash, winter squash |
| September | tomatoes, peppers, beans, squash, fall brassicas, carrots | beans, summer squash, winter squash |
| October | — | beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| December | lettuce, peas, spinach, radishes | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
A year in weather
Fresno peaks at about 84°F in July and bottoms near 48°F in December; January brings the heaviest rain (2.2 inches) and August the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 48° | 2.2″ | 5 |
| February | 52° | 1.9″ | 5 |
| March | 57° | 1.9″ | 4 |
| April | 62° | 1.0″ | 2 |
| May | 70° | 0.4″ | 1 |
| June | 78° | 0.2″ | 0 |
| July | 84° | 0.0″ | 0 |
| August | 82° | 0.0″ | 0 |
| September | 77° | 0.1″ | 0 |
| October | 67° | 0.6″ | 1 |
| November | 55° | 0.9″ | 2 |
| December | 48° | 1.8″ | 4 |
Regional context
Similar climates Old Fig Garden, CA, Mayfair, CA, Calwa, CA
Fresno's climate, from NOAA NCEI 1991-2020 station normals, pairs 48°F Januarys with 84°F Julys — a 36°F swing. About 11 inches of precipitation falls over roughly 26 days a year.
Precipitation in Fresno peaks in the cool season: January averages 2.2 inches across 4.8 storm-fed days, while August bottoms out at 0.0 inches over just 0.0 rainy days. That cool-season-wet pattern aligns Fresno with places like Old Fig Garden, CA, Mayfair, CA and Calwa, CA.
The cool-season window in Fresno starts at January 14, when nights stop freezing — think lettuce, chard, arugula, and mustard greens. Warm-soil crops in Fresno wait about two weeks past Fresno's last frost, once the soil warms. It shuts near December 14, when freezes return to Fresno and tender plants need cover. In about half of years, Fresno's last freeze comes after January 14.
Similar climates: Old Fig Garden, CA, Mayfair, CA, Calwa, CA, Tarpey Village, CA, West Park, CA.
Frequently asked
- When does it freeze in Fresno?
- In Fresno, expect the last spring frost near January 14; Fresno's first autumn frost comes around December 14.
- What is the rainy season in Fresno?
- Fresno sees its heaviest rain in January (around 2.2 inches), part of roughly 11 inches a year.
- What is the warmest month in Fresno?
- Fresno peaks in July, when the mean runs near 84°F.
- What is the coldest month in Fresno?
- December is Fresno's coldest month, averaging about 48°F.
- When can I start a vegetable garden in Fresno?
- Hardy spring crops go in near January 14 in Fresno; tender peppers and squash wait 10–14 days.
- How many rainy days does Fresno get?
- Expect roughly 26 wet days a year in Fresno.
- What hardiness zone is Fresno?
- Since December in Fresno averages 48°F, Fresno's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Fresno?
- Fresno's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Fresno?
- See this week's day-by-day rain chances for Fresno in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Fresno?
- Current conditions for Fresno and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Fresno forecast updated?
- The Fresno forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Fresno?
- Today's sunrise and sunset times for Fresno are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Fresno?
- The next few days in Fresno's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Fresno sits at 36.8°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Fresno
- 93650
- 93701
- 93702
- 93703
- 93704
- 93705
- 93706
- 93707
- 93708
- 93709
- 93710
- 93711
- 93714
- 93715
- 93716
- 93717
- 93718
- 93720
- 93721
- 93722
- 93723
- 93724
- 93725
- 93726
- 93727
- 93728
- 93729
- 93730
- 93737
- 93740
- 93741
- 93744
- 93745
- 93750
- 93755
- 93760
- 93761
- 93764
- 93765
- 93771
- 93772
- 93774
- 93775
- 93776
- 93777
- 93778
- 93779
- 93790
- 93791
- 93792
- 93793
- 93794
- 93844