Local calendar
Garden calendar for Guidonia Montecelio
Climate summary, frost dates, monthly calendar, and recommended crops for a vegetable garden in Guidonia Montecelio.
Last frost
March 302 °C cautiousFirst frost
November 18autumn 2 °CDays above 30 °C
62.57 daysaverageAltitude
107 m a.s.l.Summer dry spell
22.07 daysaverageSeason summary
- Full springAfter March 30. Milder temperatures and frost risk falling.
- SummerDry spell around 22.07 days: plan irrigation carefully.
- AutumnFirst 2 °C frost around November 18: slow the warm-season cycle.
- WinterVegetative rest, planning, and frequent frost risk.
Monthly calendar
View all monthsMain seasons and windows
Full spring
After the cautious 2 °C last frost March 30
Best period for sowing and transplanting crops sensitive to cold.
Summer
Average summer dry spell 22.07 days
Watch irrigation, mulch, and the warmest weeks.
Autumn
First autumn 2 °C frost November 18
Last harvests and short-cycle crops before cold returns.
Winter
Rest and planning period
Soil care, protection, and planning for the next cycle.
Monthly calendar
| Month | Sowing | Transplants | Note |
|---|---|---|---|
| JAN | - | - | Prepare soil and covers; open field after March 30 |
| FEB | Direct sowing and indoor starts | Transplants | Indoor starts useful; open field after March 30 |
| MAR | Direct sowing and indoor starts | Transplants | Late frosts possible until March 30 |
| APR | Direct sowing and indoor starts | Transplants | Stagger sowing and transplants |
| MAY | Direct sowing and indoor starts | Open-field transplants | Stagger sowing and transplants |
| JUN | Direct sowing and indoor starts | Transplants | Heat and dry spell: irrigate and shade at critical hours |
| JUL | Short-cycle sowings | Transplants | Heat and dry spell: irrigate and shade at critical hours |
| AUG | Short-cycle sowings | Transplants | Heat and dry spell: irrigate and shade at critical hours |
| SEP | Autumn sowings | Autumn transplants | Stagger sowing and transplants |
| OCT | Last sowings | Last transplants | Last short cycles before frost |
| NOV | Direct sowing | - | First frost around November 18 |
| DEC | Direct sowing | - | Protect late crops or let the soil rest |
Terrain and altitude
Seasonal guide
Most flexible crop windows
Crops that need extra care
Monthly calendar
Select a month to open the detailed page with recommended crops, climate risks, and harvest timing.
- JANFrequent frost
- Direct-
- Indoors-
- Transplant-
- NotePrepare soil and covers; open field after March 30
- FEBProtected starts
- DirectOnion
- IndoorsBroccoliTuscan kaleStrawberry
- TransplantOnion
- NoteIndoor starts useful; open field after March 30
- MARFrost transition
- DirectSwiss chardCarrotTuscan kale+7 more
- IndoorsBroccoliTuscan kaleFennel+4 more
- TransplantBroccoliTuscan kaleOnion+2 more
- NoteLate frosts possible until March 30
- APROpen field
- DirectSwiss chardCarrotTuscan kale+9 more
- IndoorsBroccoliTuscan kaleFennel+7 more
- TransplantBroccoliTuscan kaleOnion+5 more
- NoteStagger sowing and transplants
- MAYOpen field
- DirectSwiss chardCarrotTuscan kale+13 more
- IndoorsBroccoliTuscan kaleCucumber+10 more
- TransplantBroccoliTuscan kaleCucumber+9 more
- NoteStagger sowing and transplants
- JUNSummer heat
- DirectSwiss chardCarrotTuscan kale+13 more
- IndoorsBasilBroccoliTuscan kale+11 more
- TransplantBroccoliTuscan kaleCucumber+11 more
- NoteHeat and dry spell: irrigate and shade at critical hours
- JULSummer heat
- DirectBasilSwiss chardCarrot+14 more
- IndoorsBasilBroccoliTuscan kale+10 more
- TransplantBasilBroccoliTuscan kale+12 more
- NoteHeat and dry spell: irrigate and shade at critical hours
- AUGSummer heat
- DirectBasilSwiss chardCarrot+14 more
- IndoorsBroccoliTuscan kaleCucumber+6 more
- TransplantBasilBroccoliTuscan kale+12 more
- NoteHeat and dry spell: irrigate and shade at critical hours
- SEPOpen field
- DirectGarlicSwiss chardCarrot+12 more
- IndoorsTuscan kaleStrawberryLettuce
- TransplantBroccoliTuscan kaleCucumber+7 more
- NoteStagger sowing and transplants
- OCTLast cycles
- DirectGarlicSwiss chardTuscan kale+5 more
- Indoors-
- TransplantTuscan kaleStrawberryLettuce
- NoteLast short cycles before frost
- NOVFirst frost
- DirectGarlicRadishArugula+1 more
- Indoors-
- Transplant-
- NoteFirst frost around November 18
- DECProtection
- DirectGarlic
- Indoors-
- Transplant-
- NoteProtect late crops or let the soil rest
Method and limits
Start from local dates
Use the dates for Guidonia Montecelio as practical guidance, then adjust for exposure, elevation, and shelter in your garden.
Check cold, heat, and dry spells
Before sowing or transplanting, check frost, cold nights, heat waves, and periods without rain.
Respect crop needs
Each crop needs warm enough soil, frost protection, and a different amount of time to reach harvest.
Choose the safest window
Use recommended windows as the main reference; move earlier or later only when weather and microclimate help.
