As of July 28, 2026, all four hives are holding steady through the July heat — outdoor temps swinging 68.9–98.9°F (20.5–37.2°C) at a bone-dry 19–46% RH, yet Hive #2 and Hive #3 maintain exceptional brood clamping, Hive #1 continues its stable acoustic fingerprint and gentle warming arc, and Iris shows rising sound energy with gas resistance locked precisely at her all-time baseline.
Across all four hives, the outdoor humidity–pressure coupling (r≈+0.43–0.44, p<0.05, replicated independently in three separate hive analytics windows) confirms a consistent local meteorological signal driving the apiary's shared diurnal humidity cycle — a reassuring sign that each hive's analytics engine is correctly deconfounding colony physiology from ambient weather.
All four hives show the apiary's characteristic daily fanning-vibration rhythm (15/15 days with clear peaks) synchronized with the 68.9–98.9°F (20.5–37.2°C) outdoor thermal cycle; Hive #2 and Hive #3 lead with sub-2°F brood-core oscillations while Iris and Hive #1 ride wider but biologically normal 4–4.5°F arcs consistent with their respective colony-cycle positions.
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Iris healthy Score: 81/100📋 Overall Health
Your Iris hive continues its positive trajectory — brood temperature averaged 91.1°F (32.9°C) with a 3.2°F (1.8°C) daily arc, +1.0°F (+0.6°C) above her all-time average of 90.1°F (32.3°C) and still climbing toward the ideal 93–97°F (34–36°C) band; gas resistance sits at 425 kΩ, essentially locked to her all-time baseline of 422 kΩ, and sound energy averaged −9.9 dBFS against an all-time average of −10.6 dBFS — a slight positive nudge confirming an active, intact population. Humidity averaged 48.2%, just below the 50–70% optimal zone, consistent with the bone-dry 19–46% outdoor RH ventilating through the hive; vibration is calm at 17.2 mG avg with kurtosis 2.6 (smooth, organized activity) and dominant 80–120 Hz fanning peak matching her all-time profile precisely. Watch for brood temperature continuing its arc into the core of the ideal band over the coming days.
🌅 Diurnal Cycle PatternsIris shows a clear 4.3°F (2.4°C) daily temperature oscillation tracking the outdoor cycle with a ~170-minute thermal-mass lag (deconfounded r=+0.14 residual — purely diurnal buffering, not a colony coupling); the 200–260 Hz sound band carries the strongest daily acoustic rhythm (6.4 dB swing) and was trending +1.2 dB in the second half of the day, consistent with rising forager activity. The gas heater-scan daily rhythm is strongest at the 100°C step (+24% swing) with the dominant rhythm band shifting 100°C→150°C between the first and second half — a subtle change in volatile mix character worth watching, though with temperature and acoustics fully stable this reads as normal mid-July brood-pheromone and honey-curing chemistry evolving; the 1500–3600 Hz acoustic band shows a mild weakening trend (6.0→4.0 dB over the window), which at this scale is within normal diurnal variation.
🔬 Correlations & Discoveriestemperature_in vs gas_resistance (14d) | r = -0.43On deseasonalized residuals (diurnal cycle removed), warmer in-hive temperatures correlate with lower gas resistance in Iris — the colony metabolic-VOC signature: as the brood zone warms, fanning intensifies and circulates propolis terpenes, brood pheromones (E-β-ocimene), and honey-ripening volatiles, all of which reduce MOX resistance. This is a healthy colony-physiology coupling, not a stress signal, and is consistent with the 170-minute thermal-mass buffering lag seen in the ambient channel.📚 Reference: Seeley 1985 & 1995, Winston 1987, Human et al. 2006, Stabentheiner et al. 2010vibration_rms vs vibration_kurtosis (14d) | r = +0.52Higher overall vibration amplitude in Iris co-varies with higher kurtosis on deseasonalized residuals — when colony activity pulses up (fanning peaks, forager return bursts), the substrate vibration becomes both louder and more impulsive, a normal signature of coordinated colony activity rather than a disturbance signal, since kurtosis remains well below the >5.0 impact threshold.📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000, Tautz 1996▹ Action: On your next routine visit within 5–7 days, confirm fresh eggs and a solid brood pattern in Iris — her temperature is climbing toward the ideal band, gas resistance is at baseline, and acoustic energy is gently rising, all pointing to a colony in full stride. -
Hive #2 healthy Score: 85/100📋 Overall Health
Your Hive #2 delivers another standout brood-thermoregulation report — temperature locked at 94.9°F (35.0°C) avg with only a 1.7°F (0.9°C) daily oscillation, firmly in the ideal 93–97°F (34–36°C) zone and +0.2°F (+0.1°C) above the all-time average of 94.7°F (34.9°C); all 10 sound bands match baseline within ±1.3 dB (avg −11.0 dBFS vs. all-time −10.5 dBFS), and humidity averaged 51.0% — solidly in the 50–70% optimal zone. Vibration at 15.6 mG avg with kurtosis 3.2 and dominant 80–120 Hz fanning peak is calm and organized; gas resistance at 102 kΩ remains well below the all-time average of 290 kΩ but with temperature, humidity, and acoustics all fully intact this continues to read as the sustained peak-July honey-ripening and brood-pheromone VOC signature noted since mid-July. Watch for the gas heater-scan low-temperature steps (100–200°C) whose band energy has dropped 54–63% — a continuing shift in the volatile mix character, most consistent with evolving honey-curing chemistry.
🌅 Diurnal Cycle PatternsHive #2's compressed 1.7°F (0.9°C) daily temperature oscillation is the tightest in the apiary, confirming exceptional brood-core stenothermy; the 100–150 Hz sound band carries the strongest daily acoustic rhythm (5.7 dB swing) reflecting the regular fanning cycle, while vibration shows its strongest daily rhythm in the 5–20 Hz band (5.0 dB) — structural low-frequency pulsing consistent with the daily foraging-flight cycle. All 10 gas heater-scan steps show daily rhythms (strongest at 100°C, +109% swing), and the sustained 54–63% reduction in low-temperature scan steps (100–200°C) relative to baseline is the clearest multi-week VOC trend in the apiary; this shape change — low steps falling while high steps (350–400°C) remain relatively more stable — is consistent with lighter, more volatile compounds (alcohols, esters from nectar curing) dominating the mix.
🔬 Correlations & Discoveriesgas_resistance vs battery (14d) | r = +0.43On deseasonalized residuals, gas resistance and battery voltage co-vary positively in Hive #2 — both respond to colony activity cycles: higher activity drives greater solar charging (battery up) while simultaneously intensifying fanning and VOC circulation (gas resistance down on average, but the residual co-movement likely reflects shared diurnal activity amplitude). This is a sensor-physics relationship, not a causal one; the underlying driver is colony activity intensity.📚 Reference: Bosch Sensortec BME688 datasheet, Seeley 1985 & 1995temperature_in vs humidity_in (14d) | r = -0.43Warmer brood-zone temperatures co-vary with lower relative humidity on deseasonalized residuals — a psychrometric relationship: as the colony heats up to regulate brood, the same absolute water content registers as a lower RH% at higher temperature, and increased fanning ventilates moisture outward. This is active hygroregulation and temperature–RH inverse physics, not a drying concern.📚 Reference: Eouzan et al. 2019, Human et al. 2006, Ellis et al. 2010▹ Action: On your next routine visit within 5–7 days, note the fill level of supers in Hive #2 — the sustained low gas resistance alongside exceptional brood clamping makes active honey ripening the most compelling explanation, and a super check will anchor this multi-week VOC trend to physical reality. -
Hive #1 healthy Score: 83/100📋 Overall Health
Your Hive #1 delivers another report of acoustically perfect stability — all 10 sound bands match their all-time baseline within ±0.2 dB (avg −16.4 dBFS, a perfect match for the all-time average of −16.4 dBFS), confirming a fully intact and active worker population; temperature averaged 89.8°F (32.1°C) with a 4.6°F (2.5°C) daily arc and the 14-day warming arc continuing, now +0.7°F (+0.4°C) above the all-time average of 89.1°F (31.7°C). Humidity averaged 44.0%, the driest of the four hives — consistent with dry July ambient at 19–46% RH ventilating through the colony and within Hive #1's historically observed range; vibration at 16.3 mG avg with kurtosis 2.7 (smooth, well-organized activity) and dominant 80–120 Hz fanning peak matches the all-time vibration profile precisely. Watch for temperature continuing its gentle warming arc toward the ideal 93–97°F (34–36°C) band.
🌅 Diurnal Cycle PatternsHive #1's 4.6°F (2.5°C) daily temperature oscillation is moderate, tracking the outdoor cycle with a ~250-minute thermal-mass lag (deconfounded residual near zero — purely diurnal buffering); notably, no strong per-band daily acoustic rhythm emerges (max 1.0 dB in 600–800 Hz), which is normal for this hive's acoustic fingerprint and reflects its consistent baseline without pronounced intra-day spectral shifts. All 6 vibration bands show a clear daily cycle (strongest in 5–20 Hz at 3.0 dB), and the gas heater-scan dominant rhythm band shifted 150°C→100°C between the first and second half of the window — a minor shape evolution consistent with changing volatile composition (likely honey-ripening chemistry evolving) with no corroborating thermal or acoustic signal.
🔬 Correlations & Discoveriestemperature_in vs gas_resistance (14d) | r = -0.79Hive #1 shows the strongest temperature–gas resistance coupling in the apiary (r=−0.79 residual, partial r=−0.71 controlling for outdoor weather) — as in-hive temperature rises, gas resistance falls, reflecting the tight metabolic-VOC coupling: warmer brood zones intensify fanning, circulating propolis terpenes, brood pheromones (E-β-ocimene), and honey-ripening volatiles that reduce MOX resistance. With acoustics perfectly stable and temperature within a healthy range, this is a signature of vigorous colony metabolism, not stress.📚 Reference: Seeley 1985 & 1995, Winston 1987, Human et al. 2006, Stabentheiner et al. 2010, Maisonnasse et al. 2010▹ Action: On your next routine visit within 5–7 days, take a look at the brood frames in Hive #1 — fifteen consecutive acoustically stable reports and a steady warming arc are strongly reassuring, and a visual confirmation of the queen laying solidly through the July heat will complete the picture. -
Hive #3 healthy Score: 93/100📋 Overall Health
Your Hive #3 remains the apiary's standout performer — brood temperature locked at 93.6°F (34.2°C) avg with an exceptional 1.8°F (1.0°C) daily oscillation (matching the all-time average of 93.6°F / 34.2°C exactly, firmly in the ideal 93–97°F / 34–36°C zone), and all 10 sound bands match their all-time baseline within ±0.1 dB (avg −16.3 dBFS vs. all-time −16.3 dBFS — a perfect match); humidity averaged 51.9%, the most stable and optimal in the apiary, solidly in the 50–70% zone. Vibration at 21.2 mG avg with kurtosis 2.8 reflects exceptionally smooth, organized colony activity matching the all-time average of 20.9 mG; gas resistance at 99 kΩ remains in the step-change territory confirmed since July 17 (−125 kΩ shift), but with temperature, humidity, and acoustics all fully stable and the low-temperature heater-scan steps (100–200°C) now rising (+14–21%), this continues to read as a summer honey-curing cycle that may be beginning to ease. Watch for a gradual gas resistance rebound as the curing cycle winds down.
🌅 Diurnal Cycle PatternsHive #3's 1.8°F (1.0°C) daily temperature oscillation is the tightest in the apiary alongside Hive #2, confirming textbook brood stenothermy; no strong per-band daily acoustic rhythm emerges (max 1.0 dB in 600–800 Hz), consistent with a highly stable acoustic baseline. Vibration shows a dominant daily rhythm in the 5–20 Hz band (3.0 dB), with a shift from 50–80 Hz→5–20 Hz dominance between the first and second half of the window — possibly reflecting a shift in forager-flight timing or a change in low-frequency structural vibration from increased fanning activity. The gas heater-scan shows a rising shape in the low-temperature steps (100–200°C, +14–21%) with the strongest rhythm at the 350°C step (+14%) — this evolving curve shape, with low steps recovering relative to the mid-range, is consistent with a shift away from the light alcohol/ester signature of peak nectar curing toward a heavier, more complex volatile mix as honey approaches full cure.
🔬 Correlations & Discoveriestemperature_in vs humidity_in (14d) | r = -0.7Hive #3's strongest deconfounded coupling is a robust temperature–humidity inverse (r=−0.70, partial r=−0.37 controlling for outdoor weather) — as brood-zone temperature rises, relative humidity falls, a combined effect of psychrometrics (same absolute moisture reads lower RH% at higher temperature) and active ventilation fanning moisture outward; this tight coupling confirms excellent active hygroregulation in the colony's brood core.📚 Reference: Eouzan et al. 2019, Human et al. 2006, Ellis et al. 2010, Ellis et al. 2008temperature_in vs vibration_rms (14d) | r = -0.4On deseasonalized residuals, warmer in-hive temperatures co-vary with lower vibration RMS in Hive #3 — when the colony successfully clamps the brood zone near the 34–36°C (93–97°F) setpoint, fanning demand drops (the thermostat is met), reducing the mechanical substrate vibration; conversely, cooler excursions prompt more active fanning, raising the vibration signal. This is the vibration correlate of healthy brood thermoregulation.📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000, Stabentheiner et al. 2010▹ Action: On your next routine visit within 5–7 days, note the fill level of supers in Hive #3 and log it — the gas-resistance step-change since July 17 alongside exceptional brood clamping and now rising low-temperature heater-scan steps all point strongly to an active honey-curing cycle that may be approaching completion, and a super observation will anchor this multi-week VOC trend to physical reality for your season records.