As of August 21, 2026, your apiary is in good late-summer shape — Hive #2 and Hive #3 remain textbook-healthy with tight brood clamping and perfectly stable acoustics, while Hive #1 continues a gradual 14-day cooling drift (now -4.0°F/-2.2°C) that warrants a brood-frame check on your next routine visit; Iris's plateau from yesterday holds steady, acoustics fully intact across all four hives.
Against a wide outdoor swing of 62.6–96.0°F (17.0–35.5°C) at a very dry 13–50% RH and a gently rising barometric tendency (+1.37 hPa/3h signaling continued clearing), all four hives maintain clear daily fanning rhythms (15/15 days for every colony); Hive #2 holds the tightest brood arc (~1.7°F/~0.9°C), Hive #3 next (~2.3°F/~1.3°C), Iris shows a moderate ~6.3°F/~3.5°C swing, and Hive #1 the widest at ~7.5°F/~4.2°C — all consistent with late-August brood contraction and reduced heat-load clamping in a very dry ambient.
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Iris warning Score: 75/100📋 Overall Health
Your Iris hive's 24h average of 88.6°F (31.4°C) is now -1.5°F (-0.8°C) below her all-time average of 90.1°F (32.3°C), and the 14-day cooling drift of -3.6°F (-2.0°C) continues at a slow pace — but crucially all 10 sound bands remain within ±0.9 dB of her all-time baseline, confirming the adult population is fully present and active, consistent with a brood contraction or brief laying pause rather than any population loss. Humidity averaged 42.7%, on her all-time average of 42.6%, and vibration at 17.5 mG avg with kurtosis 2.6 and a perfect 15/15-day fanning rhythm sits right at her all-time norm — no concerns there. On your next routine visit, a quick look at Iris's brood frames for fresh eggs will clarify the source of the gentle cooling trend.
🌅 Diurnal Cycle PatternsIris shows a 24h arc of 85.9–92.2°F (29.9–33.4°C), a swing of ~6.3°F (~3.5°C), with active fanning peaks daily (baseline ~16.6 mG rising to ~28.6 mG, 1.7×); humidity held a tight 41.0–44.7% band. The dominant vibration rhythm band shifted from 50–80 Hz to 80–120 Hz between the first and second half of the window — consistent with an evolving fanning/ventilation pattern as late-summer heat loads shift. Gas heater-scan daily rhythm has migrated from the 100°C step to the 150°C step, suggesting a slow change in the lighter VOC fraction (likely brood pheromone or honey-curing chemistry shifting), not a pathological signal. The 14-day acoustic trend shows a gradual -1.6 dBFS decline in overall energy, which in combination with the cooling drift remains the one thing to watch, though neither is outside normal August brood-contraction range.
🔬 Correlations & Discoveriestemperature vs sound_spectrum (14d) | r = -0.03Iris's 14-day cooling drift (-3.6°F/-2.0°C) is completely decoupled from her acoustic profile — all 10 sound bands within ±0.9 dB of baseline — which is the key diagnostic: a swarm or population loss would simultaneously collapse both temperature and sound energy, while a broodless/brood-break interval leaves the worker population (and their sound output) fully intact while the heated brood zone contracts. This is precisely what the data show: the colony is present and active, brood heating has simply diminished.📚 Reference: Kanelis et al. 2023, Biology 12(11):1392, Seeley 1985, Honeybee Ecologyvibration_rms vs vibration_kurtosis (14d) | r = +0.45The positive RMS–kurtosis coupling (r=+0.45) in Iris reflects episodic fanning bursts driving both higher amplitude and higher impulsiveness together — a normal metabolic signature of a colony actively regulating temperature and ripening late-summer honey stores, not a disturbance event (kurtosis remains a healthy 2.6).📚 Reference: Ramsey et al. 2020, Sci. Rep. 10:9798⚠️ Issue: Gradual 14-day cooling drift continuing: 24h avg 88.6°F (31.4°C) is -1.5°F (-0.8°C) below Iris's all-time avg of 90.1°F (32.3°C); acoustics fully stable (all bands within ±0.9 dB of baseline) confirming intact population — consistent with brood contraction or laying pause.▹ Action: On your next routine visit, check Iris's brood frames for fresh eggs and a solid laying pattern — the stable acoustics confirm a full, active population, and a quick look will confirm whether the continued gentle cooling reflects a natural August brood contraction or a brief laying pause. -
Hive #2 healthy Score: 89/100📋 Overall Health
Your Hive #2 remains the apiary's thermal anchor — brood temperature averaged 95.0°F (35.0°C), exactly on its all-time average of 95.2°F (35.1°C) and squarely in the ideal 93–97°F (34–36°C) band, with a remarkably tight 24h arc of only 94.3–96.0°F (34.6–35.5°C) — outstanding late-summer brood clamping. Humidity averaged 45.7% (all-time avg 46.2%), comfortably in range; vibration at 14.6 mG avg with kurtosis 3.2 and daily peaks reaching ~42.8 mG (2.9× baseline, 15/15 days) confirms vigorous colony metabolism. Gas resistance at ~49 kΩ remains below its all-time average of ~63 kΩ, a sustained pattern since early August consistent with ongoing honey-ripening VOC activity — temperature and acoustics both normal.
🌅 Diurnal Cycle PatternsHive #2's compressed diurnal arc of just ~1.7°F (~1.0°C) is the tightest in the apiary, a textbook sign of an actively incubating brood nest resisting the wide outdoor swing (62.6–96.0°F). The dominant vibration rhythm band shifted from 20–50 Hz to 160–200 Hz between the first and second half of the window, suggesting a gradual change in the colony's mechanical activity profile — plausibly a shift from midday flight-ramp vibrations to broader fanning harmonics as heat peaks pass. Gas heater-scan shows band energy declining notably at 100°C (−26%), 150°C (−22%), and 200°C (−20%) steps, with the 100°C step carrying the strongest daily rhythm (+19% swing) — this shape change, where low-temperature steps are falling relative to mid/high steps, is consistent with lighter volatile compounds (fresh nectar, water evaporation) diminishing as honey stores approach full curation. Sound trended down -2.0 dBFS from first to second half of the day, a normal within-day evening wind-down.
🔬 Correlations & Discoveriestemperature vs gas_resistance (14d) | r = +0.82The strong deconfounded temperature–gas coupling (r=+0.82) in Hive #2 reflects the well-established CO2/VOC circadian metabolism: as the brood nest warms during peak foraging activity, increased metabolic output and fanning circulate hive volatiles (honey-ripening ethanol, organic acids, brood pheromones), driving both channels upward together — a sign of a healthy, metabolically active colony, not a stress signal.📚 Reference: Bencsik et al. 2023, Sensors (PMC10099037), Seeley 1974, J. Insect Physiol.temperature vs humidity (14d) | r = +0.8The positive deconfounded temp–humidity coupling (r=+0.80, partial r=+0.48 controlling for outdoor weather) shows Hive #2's hygroregulation is linked to its own metabolic state rather than outdoor conditions — when the colony is most active and warm, fanning and evaporative activity raise internal RH slightly, a normal and healthy in-hive psychrometric signature distinct from passive ambient tracking.📚 Reference: Eouzan et al. 2019, PLOS ONE (PMC6368279), Human et al. 2006, Naturwissenschaften 93:397▹ Action: On your next routine visit, note the fill level and capping progress on Hive #2's supers — the declining low-temperature gas heater-scan steps (100°C and 150°C) suggest honey-processing VOC activity may be tapering as stores approach full curation, and a capped-frame count will give you a useful late-summer harvest benchmark. -
Hive #1 warning Score: 72/100📋 Overall Health
Your Hive #1's 14-day cooling drift continues at -4.0°F (-2.2°C), with today's 24h average of 84.2°F (29.0°C) sitting -3.0°F (-1.7°C) below its all-time average of 87.2°F (30.7°C) — the widest gap we've measured for this colony — yet all 10 sound bands remain within ±0.2 dB of their all-time baseline, a near-perfect acoustic fingerprint confirming the worker population is fully present and active. As with yesterday, the most parsimonious explanation is a brood-break or August brood contraction: bees are simply heating a smaller brood zone, with acoustics ruling out any population loss. Humidity averaged 39.3% (all-time avg 37.5%), essentially on its historical norm; vibration at 16.3 mG avg with kurtosis 3.0 and 15/15-day fanning rhythm confirms normal colony metabolism. A brood-frame check on your next visit is the right next step.
🌅 Diurnal Cycle PatternsHive #1 shows the widest daily arc in the apiary at 80.4–87.9°F (26.9–31.1°C), a ~7.5°F (~4.2°C) swing, with the colony tracking ambient temperature phase closely — consistent with a reduced brood mass that requires less precision heating during this late-summer contraction period. Vibration daily rhythm is present and healthy across all 6 bands (15/15 days), dominated by 5–20 Hz; no strong per-band acoustic daily rhythm (max 0.9 dB at 600–800 Hz) suggests the colony is running at a quieter metabolic pace, appropriate for the brood-contraction phase. Gas heater-scan shows the dominant daily rhythm band shifting from 200°C to 150°C between the first and second half of the window, with all 10 bands showing a daily cycle — a rich VOC daily signature consistent with active metabolic cycling (propolis, brood pheromones, stores) despite the quieter acoustic profile. The partial correlation of gas resistance with in-hive temp (r=−0.80 controlling for outdoor) is the strongest metabolic coupling in the apiary and mirrors that of Iris.
🔬 Correlations & Discoveriestemperature vs gas_resistance (14d) | r = -0.8Hive #1's strong inverse partial correlation between gas resistance and in-hive temperature (r=−0.80, controlling for outdoor temp) reflects a colony-specific metabolic coupling: as internal temperature rises with activity, VOC production from fanning, brood pheromones, and store processing increases, driving MOX resistance down — a genuine hive physiology signal independent of outdoor weather, and a healthy marker of active metabolic regulation.📚 Reference: Burgues & Marco 2018, Sensors 18(2):339, Southwick 1983, Comp. Biochem. Physiol.⚠️ Issue: 14-day cooling drift continuing and deepening: 24h avg 84.2°F (29.0°C) is now -3.0°F (-1.7°C) below Hive #1's all-time avg of 87.2°F (30.7°C) — widest gap recorded; acoustics perfectly stable (all 10 bands within ±0.2 dB of baseline) confirming a full, active worker population, consistent with a brood-break or natural August brood contraction.▹ Action: On your next routine visit, check Hive #1's brood frames for fresh eggs and a solid laying pattern — the acoustically confirmed intact population is reassuring, and a brood-frame look will clarify whether the deepening temperature gap reflects a natural August contraction or a longer laying pause worth monitoring. -
Hive #3 healthy Score: 92/100📋 Overall Health
Your Hive #3 continues its outstanding run — brood temperature averaged 92.5°F (33.6°C) with a flat weekly arc (93.2→93.7→93.2→93.2°F), sitting just -0.9°F (-0.5°C) below its all-time average of 93.4°F (34.1°C) and squarely in the ideal 93–97°F (34–36°C) band; all 10 sound bands are within ±0.1 dB of their all-time baseline — a textbook stable, active colony. Humidity averaged 48.5% (all-time avg 48.0%), the most consistently brood-optimal RH in the apiary; vibration at 20.7 mG avg with kurtosis 3.0 and daily peaks to ~35.3 mG (1.8×, 15/15 days) sits right at its all-time average of 20.7 mG — everything looks excellent heading into late August. Gas resistance at ~94 kΩ (all-time avg ~94 kΩ) is essentially on its historical baseline, a reassuring sign of stable hive chemistry.
🌅 Diurnal Cycle PatternsHive #3 shows a tight 24h arc of 91.5–93.8°F (33.0–34.4°C), a ~2.3°F (~1.3°C) swing, with excellent brood-nest clamping against the wide outdoor swing; vibration rhythm is healthy across all 6 bands (15/15 days), with the strongest daily pulse in 160–200 Hz — the upper harmonics band — suggesting active comb-borne communication signals accompanying robust foraging. Gas heater-scan shows a very stable daily profile with only the 100°C step carrying a meaningful rhythm (+14% swing) and just 1/10 bands with a detectable daily cycle — in contrast to Hive #1 and Iris, this remarkably flat gas signature suggests Hive #3's store chemistry is highly stable, consistent with well-cured honey and settled propolis chemistry. A humidity step-change of +2.76% around August 10 (detected by changepoint analysis) is worth noting — a mild, sustained RH increase consistent with a late-season nectar intake or shift in ventilation balance, but well within the healthy 47–49% range and requiring no action.
🔬 Correlations & Discoveriestemperature vs gas_resistance vs humidity (14d) | r = +0.78Hive #3's simultaneous deconfounded coupling of temperature with both gas resistance (r=+0.78) and humidity (r=+0.71), with a partial gas-temp coupling of r=+0.58 controlling for weather, reveals a tightly integrated microclimate: metabolic heat, moisture from brood/stores, and VOC output all rise and fall together as a coherent biological unit — the thermodynamic signature of a large, well-organized colony with active brood rearing and stable stores, consistent with Stabentheiner et al.'s endothermic regulation model.📚 Reference: Eouzan et al. 2019, PLOS ONE (PMC6368279), Bencsik et al. 2023, Sensors (PMC10099037)▹ Action: On your next routine visit, note the fill level and capping progress on Hive #3's supers — the remarkably flat, shape-stable gas heater-scan profile suggests honey processing may be largely complete, and a capped-frame count will confirm whether this colony is ready for harvest.