Watch the measured night floor
Outdoor lows can increase heating demand in some homes, but insulation and indoor climate control can change the result. Record overnight room, warm-side, and cool-side values before adding heat.
Verified climate source
PhoenixArizona
A seasonal planning guide for indoor reptile habitats—grounded in outdoor normals, then handed back to measurements inside your home.
- Climatological maximum
- 119.4°F
- Annual mean
- 72.2°F
- Climatological minimum
- 21.0°F
The year at a glance
Monthly temperature rhythm
Average daily maximum and minimum values. Humidity appears in the table as contextual outdoor data, not an enclosure target.
| Month | Avg daily high | Mean | Avg daily low | Outdoor humidity context |
|---|---|---|---|---|
| January | 86.1°F | 52.5°F | 21.0°F | 46% RH |
| February | 85.9°F | 55.2°F | 21.3°F | 44% RH |
| March | 98.6°F | 62.3°F | 30.9°F | 38% RH |
| April | 103.9°F | 69.1°F | 36.2°F | 29% RH |
| May | 111.5°F | 78.7°F | 46.0°F | 22% RH |
| June | 119.4°F | 89.5°F | 57.8°F | 15% RH |
| July | 117.4°F | 93.0°F | 68.6°F | 30% RH |
| August | 115.8°F | 91.3°F | 66.3°F | 35% RH |
| September | 114.5°F | 85.9°F | 55.9°F | 31% RH |
| October | 105.8°F | 74.2°F | 40.2°F | 30% RH |
| November | 97.4°F | 62.3°F | 28.5°F | 34% RH |
| December | 83.1°F | 51.8°F | 24.8°F | 45% RH |
Seasonal narrative
What may change at home
The coldest average daily minimum occurs in January (21.0°F); the warmest average daily maximum occurs in June (119.4°F).
Protect the cool side
During June, check that the enclosure still provides the species-specific cool zone. Adjust the room or ventilation only from measured values.
Let the hygrometer decide
June has the lowest contextual outdoor humidity in this record. Indoor ventilation, substrate, heating, and household HVAC can produce a very different reading.
Equipment decision workflow
Choose control from evidence, not a wattage shortcut.
- 01
Record the room
Measure daytime and overnight room temperature through the season you are planning for.
- 02
Describe the enclosure
Note internal dimensions, material, ventilation area, target night floor, and heat-source distance.
- 03
Match the controller
Select a thermostat type compatible with the heat source; follow the manufacturer’s placement and load requirements.
- 04
Commission and verify
Test an empty setup, then confirm warm-side, basking-surface, cool-side, and night readings with suitable instruments.
Explore care profiles
Lower modeled seasonal pressure
These scores compare outdoor normals with husbandry ranges. They are planning aids—not safety guarantees or a substitute for a complete species guide.
Higher seasonal control load
Rosy Boa
Lichanura trivirgataHigher seasonal control load
Russian Tortoise
Agrionemys horsfieldiiHigher seasonal control load
Leopard Gecko
Eublepharis maculariusHigher seasonal control load
Kenyan Sand Boa
Gongylophis colubrinusHigher seasonal control load
Bearded Dragon
Pogona vitticepsHigher seasonal control load
Frog-Eyed Gecko
Teratoscincus scincusSource and limitations
Know what the record can—and cannot—say.
- Dataset
- NASA POWER Climatology API
- Period
- NASA POWER default long-term climatology (pre-defined period; no custom start/end)
- Data version
- NASA-POWER-2ebf7340ae5d
NASA POWER climatology values are gridded outdoor means (MERRA-2 meteorology), not indoor enclosure conditions. Relative humidity is outdoor context only; measure the habitat directly. High/low card values are labeled as climatological maximum/minimum until a daily-data-derived average-daily pipeline is proven executable.