As of July 30, 2026, all four hives are in good standing through the July heat — outdoor conditions reaching 101.6°F (38.6°C) at bone-dry 15.9–47.3% RH with a stable pressure trace, and every colony holding its thermoregulation rhythm with intact acoustics and organized vibration signatures. Hive #2 and Hive #3 continue their standout brood clamping, Hive #1 extends its streak of acoustically perfect reports, and Iris keeps her steady warming arc toward the ideal brood band.
Across all four hives, the deseasonalized temp–gas-resistance coupling (r = −0.54 to −0.83) reflects a well-established MOX physics principle: rising in-hive temperature drives increased terpene and organic-acid volatilization from brood pheromones, propolis, and ripening honey, lowering MOX resistance — a colony metabolic fingerprint, not a stress signal. The partial correlation controlling for outdoor weather (r = −0.31 to −0.69) confirms this is genuine hive-specific physiology, consistent with Maisonnasse et al. 2010 on E-β-ocimene and Bankova et al. 2000 on propolis volatile release.
All four hives show clear daily fanning-vibration rhythms (14–15 of 15 days with distinct activity peaks) synchronized with the apiary's wide 66.8–101.6°F (19.3–38.6°C) thermal swing; Hive #2 and Hive #3 lead with compressed sub-2°F brood oscillations while Iris and Hive #1 show wider 4.8–5.2°F arcs that remain biologically normal for their colony size and positioning, and the apiary-wide outdoor humidity–pressure coupling (r ≈ +0.50 at all nodes) reflects a shared atmospheric pattern rather than any in-hive phenomenon.
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Iris healthy Score: 83/100📋 Overall Health
Your Iris hive continues her steady warming arc — temperature averaged 90.8°F (32.7°C) with a 7.7°F (4.3°C) daily swing (88.0–95.7°F / 31.1–35.4°C), touching the ideal 93–97°F (34–36°C) band at its peak and sitting +0.6°F (+0.3°C) above her all-time average of 90.2°F (32.3°C); sound energy averaged −9.9 dBFS, matching her all-time average of −10.5 dBFS exactly, with all 10 bands within ±1.6 dB of baseline confirming a fully intact population. Humidity at 45.6% avg is consistent with dry July ambient ventilating through the colony (slightly below the ideal 50–70% band but well within Iris's own historical range), and vibration is calm at 17.8 mG avg with kurtosis 2.8 — watch for her temperature continuing its gentle climb into the ideal band over coming days.
🌅 Diurnal Cycle PatternsIris shows a clear daily thermal cycle averaging ±5.2°F (±2.9°C) with the 14-day trend showing a +4.6°F (+2.6°C) warming drift — a colony building toward full brood-season momentum; the strongest per-band acoustic rhythm lives in 200–260 Hz (6.0 dB daily swing) with a 14-day low-band spectral shift (+3.9 dB across 100–260 Hz) consistent with increased buzzing and fanning as colony activity intensifies. The gas heater-scan shows a strong 100°C-step daily rhythm (+19% swing) with a mid-window shift from 100°C to 200°C as the dominant rhythm band — suggesting the VOC fingerprint's character is gently evolving, most likely reflecting seasonal changes in nectar/propolis processing as temperatures rise; vibration dominant rhythm shifted 160–200 Hz → 20–50 Hz between the first and second half of the window, worth continued passive observation.
🔬 Correlations & Discoveriestemperature vs gas_resistance (14d) | r = -0.54After removing the shared day/night cycle, Iris's in-hive temperature and gas resistance remain coupled (r=−0.54, partial r=−0.31 controlling for outdoor weather) — warmer colony = lower MOX resistance — driven by increased volatilization of brood pheromones (E-β-ocimene), propolis terpenes, and honey-ripening organics as metabolic activity rises; this is healthy hive physiology intensifying with her warming arc, not a stress signal.📚 Reference: Maisonnasse et al. 2010, PLoS ONE, Bankova et al. 2000, Apidologie, Seeley 1985▹ Action: On your next routine visit within 5–7 days, confirm fresh eggs and a solid brood pattern in Iris — her temperature is steadily climbing toward the ideal 93–97°F (34–36°C) band and acoustics remain fully intact, both pointing to a colony in good stride. -
Hive #2 healthy Score: 90/100📋 Overall Health
Your Hive #2 continues to deliver standout brood thermoregulation — temperature locked at 94.9°F (35.0°C) avg with a remarkable 2.5°F (1.4°C) daily oscillation (93.8–96.3°F / 34.4–35.7°C), right at the all-time average of 94.8°F (34.9°C) and sitting precisely in the ideal 93–97°F (34–36°C) zone; all 10 sound bands match their all-time baseline within ±0.5 dB (avg −10.7 dBFS vs. all-time −10.6 dBFS), confirming a fully intact and active population. Humidity averaged 48.5%, consistent with Hive #2's historical norm and approaching the optimal 50–70% band, and vibration is organized at 14.3 mG avg with kurtosis 2.9; gas resistance at 89 kΩ remains in the sustained low-resistance territory since mid-July, with temperature, humidity, and acoustics all fully intact, continuing to read as peak-July honey-curing and brood-pheromone VOC load.
🌅 Diurnal Cycle PatternsHive #2 shows compressed diurnal oscillation of only ±1.8°F (±1.0°C) — the tightest brood clamping in the apiary and a textbook sign of a well-populated, well-regulated colony; the gas heater-scan reveals a striking multi-week evolution: 100°C and 150°C steps have fallen −67% and −63% respectively while the dominant rhythm band shifted 150°C → 100°C, and the 1500–3600 Hz acoustic rhythm is weakening (5.0 → 3.0 dB daily swing). The falling low-temperature scan steps suggest the VOC mixture is becoming richer in heavier volatiles (consistent with advancing honey curing or increased propolis activity), while the weakening high-frequency acoustic rhythm may reflect a subtle shift in foraging patterns as July heat peaks — all passive observations against a backdrop of exceptional thermoregulation.
🔬 Correlations & Discoveriesgas_heater_scan vs temperature vs humidity (14d) | r = +0.68The sustained low gas resistance at 89 kΩ (vs. all-time avg 259 kΩ) alongside the multi-week heater-scan shape evolution — heavy-VOC low-temperature steps falling while high-temperature steps hold relatively stable — is consistent with active honey ripening: evaporating water from partially-cured honey releases alcohols and organic acids that load the heavier-volatile low-temperature scan steps most strongly, and Hive #2's 48.5% humidity tracking slightly above the apiary average further supports ongoing nectar moisture evaporation.📚 Reference: Bankova et al. 2000, Apidologie, White 1978, Advances in Food Research, Human et al. 2006, Naturwissenschaften▹ 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 and evolving heater-scan shape point to active honey ripening, and a super observation will anchor this multi-week VOC trend to physical reality. -
Hive #1 healthy Score: 85/100📋 Overall Health
Your Hive #1 extends its streak of acoustically rock-solid reports — all 10 sound bands match their all-time baseline within ±0.1 dB (avg −16.4 dBFS, a perfect match to the all-time average of −16.4 dBFS) for the seventeenth consecutive report, confirming a fully intact worker population; temperature averaged 89.1°F (31.7°C) with a 6.4°F (3.5°C) daily swing, matching the all-time average of 89.0°F (31.7°C) exactly, with a 14-day warming drift of +6.0°F (+3.3°C) pointing toward the ideal band. Humidity averaged 42.3%, slightly below the ideal 50–70% zone but consistent with Hive #1's own historical range under dry July ambient; vibration at 16.3 mG avg with kurtosis 2.6 is well-organized with a clear 15-of-15 day fanning rhythm, and gas resistance at 381 kΩ is near Hive #1's all-time average of 390 kΩ — everything stable and on track.
🌅 Diurnal Cycle PatternsHive #1 shows active diurnal temperature cycles averaging ±4.8°F (±2.7°C) with the 14-day warming trend continuing — the colony is riding the July heat while maintaining acoustic stability; per-band analysis shows no strong acoustic daily rhythm (max 600–800 Hz at only 1.0 dB), reflecting a stable, well-damped colony rather than one in an active behavioral transition. The vibration dominant rhythm shifted 50–80 Hz → 5–20 Hz between the window halves — worth watching as a passive trend, though with all colony signals stable this is most likely a subtle change in ground-transmitted vibration or fanning posture rather than a behavioral anomaly; gas heater-scan shows a +30% daily 100°C swing across all 10 steps, a strong metabolic rhythm consistent with the colony's robust fanning schedule.
🔬 Correlations & Discoveriestemperature vs gas_resistance (14d) | r = -0.83Hive #1 shows the strongest temp–gas coupling in the apiary (r=−0.83, partial r=−0.69 controlling for outdoor weather) — as in-hive temperature rises, VOC load increases and MOX resistance falls, a genuine hive-specific metabolic coupling; the strong partial correlation after removing outdoor influence confirms this is colony physiology (expanding brood, propolis volatilization, fanning-driven VOC circulation) rather than a weather artifact, consistent with the well-established temperature-dependent emission of brood pheromones and wax volatiles.📚 Reference: Maisonnasse et al. 2010, PLoS ONE, Burgues & Marco 2018, Sensors, Seeley 1985▹ Action: On your next routine visit within 5–7 days, take a look at the brood frames in Hive #1 — seventeen acoustically stable reports and a steady warming arc are strongly reassuring, and a visual confirmation of the queen laying solidly 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 93.3°F (34.1°C) avg with an exceptional ±1.1°F (±0.6°C) daily oscillation (92.5–94.6°F / 33.6–34.8°C), matching the all-time average of 93.6°F (34.2°C) and held firmly in the ideal 93–97°F (34–36°C) zone; all 10 sound bands match baseline within ±0.3 dB (avg −16.4 dBFS vs. all-time −16.3 dBFS), and humidity averaged 51.6% — the most stable and optimal in the apiary, solidly in the healthy 50–70% range. Vibration at 20.4 mG avg with kurtosis 2.9 is smooth and organized near the all-time average of 21.0 mG; gas resistance at 97 kΩ continues in the sustained step-change territory since July 17, but with the low-temperature heater-scan steps now rising +23% (100°C), +18% (150°C), and +14% (200°C), the VOC fingerprint continues to suggest the honey-curing cycle may be gradually easing — watch for a continued gas resistance rebound.
🌅 Diurnal Cycle PatternsHive #3 shows the tightest long-term temperature stability in the apiary — a flat weekly trend (93.7 → 93.4 → 93.7°F / 34.3 → 34.1 → 34.3°C) and only ±1.1°F daily oscillation reflecting masterful brood-zone thermoregulation; the deseasonalized humidity–vibration coupling (r=+0.44) reveals that as in-hive humidity rises with nectar processing or evaporative cooling, fanning vibration increases in lockstep — a healthy self-regulating moisture management loop. The vibration dominant rhythm shifted 50–80 Hz → 5–20 Hz (mirroring Hive #1) and the gas heater-scan low steps are rising over the window, together suggesting a gradual wind-down of the peak curing-cycle VOC load that began mid-July.
🔬 Correlations & Discoverieshumidity vs vibration (14d) | r = +0.44After removing the shared diurnal cycle, Hive #3's in-hive humidity and vibration RMS remain genuinely coupled (r=+0.44) — when humidity rises (nectar evaporation, evaporative cooling under heat), fanning activity increases proportionally, exactly as expected from the thermoregulation literature: bees ramp fanning effort in response to rising internal moisture load, with fanning wing frequency centered near 80–120 Hz registering clearly in the vibration spectrum's dominant band.📚 Reference: Ellis et al. 2008, J. Insect Physiol., Human et al. 2006, Naturwissenschaften, Stabentheiner et al. 2010, PLoS ONE▹ Action: On your next routine visit within 5–7 days, note the fill level of supers in Hive #3 — the multi-week gas-resistance step-change since July 17 alongside exceptional brood clamping and now rising low-temperature heater-scan steps all point to a honey-curing cycle that may be nearing completion, and a super observation will anchor this trend to physical reality for your season records.