Four-week-old chickens can tolerate temperatures as low as 50°F (10°C) but should ideally be kept between 60-75°F (15-24°C) for optimal health.
Raising chicks requires careful temperature management, especially during their first few weeks. At 4 weeks old, chicks are still developing their feathers and need proper warmth to thrive. This guide covers everything you need to know about temperature requirements, signs of distress, and how to keep your young flock safe.
Ideal Temperature for 4-Week-Old Chicks
Four-week-old chicks can tolerate temperatures around 65-70°F (18-21°C). However, this depends on several factors:
- Feather development: More feathers mean better cold tolerance
- Breed: Some breeds handle cold better than others
- Group size: More chicks can huddle for warmth
- Draft protection: Wind chill makes temperatures feel colder
According to poultry experts, you should reduce heat by about 5°F each week from the initial 95°F brooder temperature. This gradual decrease helps chicks acclimate to cooler conditions.
Temperature Guidelines by Age
| Age | Temperature |
|---|---|
| 1 week | 95°F (35°C) |
| 2 weeks | 90°F (32°C) |
| 3 weeks | 85°F (29°C) |
| 4 weeks | 75-80°F (24-27°C) |
| 5 weeks | 70-75°F (21-24°C) |
| 6+ weeks | 65°F (18°C) or ambient temperature |
Signs Your Chicks Are Too Cold
Watch for these indicators that your 4-week-olds need more warmth:
- Persistent loud chirping
- Huddling together constantly
- Reluctance to move away from heat source
- Puffed-up feathers
- Lethargy or decreased activity
If you notice these signs, increase the temperature gradually. A safe heat source can prevent chilling without fire risks.
Transitioning Chicks Outdoors
Moving chicks outside at 4 weeks requires careful planning:
Key Considerations
- Weather patterns: Avoid sudden cold snaps
- Coop preparation: Must be draft-free and dry
- Predator protection: Secure against raccoons, cats, etc.
- Gradual acclimation: Start with daytime outings
For vacation planning, consider chicken care options if you’re concerned about leaving young chicks unattended.
Breed-Specific Cold Tolerance
Some breeds handle cold better at young ages:
Cold-Hardy Breeds
- Rhode Island Reds
- Plymouth Rocks
- Orpingtons
- Wyandottes
Cold-Sensitive Breeds
- Leghorns
- Silkies
- Polish
- Most bantams
Check our guide on winter-laying chickens for breeds that thrive in cooler conditions.
Alternative Heating Methods
If you’re concerned about heat lamp safety, try these options:
- Heating pads: Made specifically for poultry brooders
- Ceramic heat emitters: No light, less fire risk
- Brooder plates: Allow chicks to go under for warmth
- Insulated coops: Retain heat naturally
According to poultry raising experts, providing a temperature gradient lets chicks self-regulate their comfort.
Regional Climate Considerations
Local weather patterns significantly impact chick care:
- Humid climates: Chicks feel colder in damp conditions
- Dry climates: Temperature fluctuations are more extreme
- Northern regions: May need heat longer into spring
- Southern regions: Can often wean off heat earlier
Always monitor your chicks’ behavior rather than relying solely on thermometer readings. Their actions will tell you if they’re comfortable.