As of August 2, 2026, all four hives are in solid shape heading deeper into summer — outdoor conditions are warm and dry at 72.1°F (22.3°C) with 37% RH and a clean ambient gas signature (497 kΩ), confirming no regional VOC events affecting the apiary. Hive #2 and Hive #3 continue their standout brood clamping, Hive #1 extends its acoustically perfect streak, and Iris continues her steady warming arc toward the ideal band.
Hive #2's sustained low-frequency acoustic energy shift (+6.9 dB in the 100–260 Hz bands vs. baseline) combined with its persistent low gas resistance fingerprint mirrors published descriptions of intensified fanning and honey-curing VOC circulation — a multi-sensor colony activity signature rather than a stress signal (Ramsey et al. 2020; Frizzera et al. 2020).
All four hives show clear daily fanning/activity vibration rhythms (14–15 of 15 days with distinct peaks), and the outdoor 24h temperature swing of 63.8–95.1°F (17.7–35.1°C) under very dry 20–53% RH is the dominant environmental driver shaping in-hive diurnal amplitudes this week; Hive #2's compressed 1.9°F (1.1°C) brood swing vs. Iris's wider 3.6°F (2.0°C) arc reflects their respective brood-mass and thermoregulatory effort differences, all well within normal August ranges.
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Iris healthy Score: 80/100📋 Overall Health
Your Iris hive is holding steady in August — temperature averaged 89.6°F (32.0°C) over the last 24h, a −0.6°F (−0.3°C) step below yesterday's 91.5°F (33.1°C) and still tracking her 14-day warming arc toward the ideal 93–97°F (34–36°C) band; the daily range of 88.1–91.7°F (31.2–33.2°C) represents a 3.6°F (2.0°C) swing, comfortably within healthy brood-clamping territory. All 10 sound bands match her all-time baseline within ±1 dB (avg −10.7 dBFS vs. all-time −10.5 dBFS), vibration is calm at 17.4 mG avg with a healthy kurtosis of 2.6, and humidity held a narrow 42.5–46.1% (avg 44.2%) — consistent with Iris's own historical range under dry August ambient; watch for her temperature continuing its gradual drift into the ideal band.
🌅 Diurnal Cycle PatternsIris shows a clear 4.0°F (2.2°C) daily temperature oscillation with a well-defined fanning peak (14/15 days, baseline ~16.6 mG rising to ~30.8 mG); the dominant vibration band is 80–120 Hz, consistent with active fanning activity. All six vibration bands show a daily rhythm and the strongest acoustic daily cycle sits in the 200–260 Hz band (+5.7 dB swing), reflecting regular foraging/recruitment activity. Gas heater-scan shows a 19% daily swing at the 100°C step (the most humidity-sensitive plate), which tracks the moderate daily humidity oscillation rather than a true VOC event — mid-step (320°C reference at 453 kΩ) is slightly above the all-time average of 432 kΩ, consistent with a quieter VOC load compared to Hive #2 and Hive #3.
🔬 Correlations & Discoveriestemperature vs gas_resistance (14d) | r = -0.53The deconfounded inverse relationship between in-hive temperature and gas resistance in Iris reflects the well-established link between brood-nest metabolic activity and VOC load — as the colony warms and heater-bee activity intensifies, brood pheromones (notably E-β-ocimene) and propolis volatiles increase, reducing MOX resistance. At Iris's current sub-ideal temperature of ~89–91°F (32–33°C), this coupling is moderate and consistent with a colony still building toward peak-season brood intensity.📚 Reference: Stabentheiner et al. 2010, Seeley 1985, Frizzera et al. 2020vibration_rms vs vibration_kurtosis (14d) | r = +0.52Iris's positive RMS–kurtosis coupling at a kurtosis of 2.6 (near the normal ~3.0 baseline) indicates that vibration peaks are smooth and periodic — driven by regular fanning and foraging cycles rather than impulsive disturbance events, a sign of an undisturbed, well-functioning colony.📚 Reference: Ramsey et al. 2020, Nieh & Tautz 2000▹ Action: On your next routine visit within 5–7 days, confirm fresh eggs and a solid brood pattern in Iris — her steady warming arc and fully intact acoustics both point to a colony in good stride. -
Hive #2 healthy Score: 86/100📋 Overall Health
Your Hive #2 continues to deliver exceptional brood thermoregulation — temperature locked at 95.2°F (35.1°C) avg with a compressed 1.4°F (0.8°C) daily range (94.5–95.9°F / 34.7–35.5°C), matching the all-time average of 94.8°F (34.9°C) and sitting precisely in the ideal 93–97°F (34–36°C) zone; the anomaly detector flagged a z=+3.5 on temperature, which simply reflects how tightly this hive clamps its brood relative to its own history — a sign of vigorous thermoregulation, not stress. Sound energy has risen +4.2 dBFS over 14 days with low-frequency bands (100–260 Hz) now +5.7–6.9 dB above their baseline — a broadband low-frequency intensification consistent with increased fanning and buzzing associated with active honey curing or syrup processing; humidity averaged 46.8%, vibration kurtosis is 2.9 (normal), and gas resistance at 76 kΩ remains well below the all-time average of 207 kΩ, but with temperature and acoustics fully intact this is a benign processing-activity fingerprint.
🌅 Diurnal Cycle PatternsHive #2 shows the apiary's tightest brood-temperature clamping — a 1.9°F (1.1°C) daily oscillation with 15/15 daily vibration fanning peaks (baseline ~12.2 mG rising to ~49.5 mG, a 4.1× ratio — the highest in the apiary). The dominant acoustic rhythm has shifted from 100–150 Hz to 200–260 Hz between the first and second half of the monitoring window, and the dominant vibration rhythm has shifted from 50–80 Hz to 5–20 Hz; both shifts are consistent with an evolving processing cycle (honey curing transitioning phases) rather than a behavioral alarm. The gas heater-scan shows the strongest daily rhythm in the apiary (+41% swing at the 100°C step), with the low-temperature steps (100°C −65%, 150°C −60%, 200°C −54%) dropping markedly relative to the window start — the scan shape is shifting toward stronger low-temperature suppression, suggesting the VOC load is heavier and more complex at cooler plate temperatures, consistent with sustained fanning-concentrated hive volatiles.
🔬 Correlations & Discoveriestemperature vs humidity (14d) | r = +0.73Hive #2's strong deconfounded temperature–humidity coupling (r=+0.73) reflects the colony's active evaporative water-management during honey curing — as brood-nest temperature rises, water-carrier bees increase evaporative activity, temporarily elevating local RH before fanning clears it; this is the classic thermoregulation–hygroregulation coupling documented in active summer colonies and is a sign of vigorous colony activity (Human et al. 2006).📚 Reference: Human et al. 2006, Ellis et al. 2010, Eouzan et al. 2019temperature vs gas_resistance (14d) | r = +0.62The positive (rather than inverse) deconfounded temperature–gas-resistance correlation in Hive #2 is noteworthy: when temperature rises slightly above baseline, resistance also rises (fewer VOCs), suggesting that brief thermal excursions in this tightly-clamped hive are associated with increased ventilation flushing rather than brood-pheromone accumulation — the bees are actively clearing volatiles when the core warms, a hallmark of a vigorous, well-ventilated colony mid-curing cycle. A step-change in sound energy was detected around July 30, consistent with the onset or intensification of a honey-curing or processing event.📚 Reference: Frizzera et al. 2020, Maisonnasse et al. 2010, Bankova et al. 2000▹ Action: On your next routine visit within 5–7 days, note the fill level and capping progress of supers in Hive #2 — the multi-week elevated low-frequency acoustics (+6.9 dB in the 100–150 Hz band) and the evolving heater-scan shape point to an active processing cycle, and a super observation will anchor this sensor trend to physical reality. -
Hive #1 healthy Score: 84/100📋 Overall Health
Your Hive #1 extends its streak of acoustically perfect reports — all 10 sound bands match their all-time baseline within ±0.2 dB (avg −16.3 dBFS vs. all-time −16.4 dBFS, an essentially perfect match) for the twentieth consecutive report, confirming a fully intact worker population; temperature averaged 87.0°F (30.5°C) with a 7.2°F (4.0°C) daily swing, sitting −2.1°F (−1.2°C) below the all-time average of 89.1°F (31.7°C) and below the ideal band — a pattern consistent with a broodless or light-brood interval (the intact acoustics confirm the worker population is fully present), or with the sensor reading a zone the colony isn't actively heating at this moment. Humidity averaged 37.4%, below the ideal 50–70% but consistent with Hive #1's own historical range under very dry August conditions (all-time avg 42.6%); vibration kurtosis is 2.9 (normal), with a clear 14/15 daily fanning rhythm, and gas resistance at 522 kΩ is above the all-time average of 395 kΩ, suggesting a lower-than-usual VOC load — watch temperature over the next few days to see whether it resumes its warming arc.
🌅 Diurnal Cycle PatternsHive #1's 7.2°F (4.0°C) daily temperature oscillation is the widest in the apiary — moderate but within the healthy range given the current cool-ish core temperature and dry ambient. All six vibration bands show a daily cycle with the dominant rhythm having shifted from 120–160 Hz to 5–20 Hz between the first and second half of the window; this low-frequency shift may reflect a change in the balance of fanning vs. structural vibration and is worth tracking but carries no alarm significance. The gas heater-scan shows a dominant daily rhythm at 150°C (35% swing) that has shifted to 100°C between window halves — the 100°C step is the most humidity-sensitive plate, and the step shift tracks the humidity change-point detected around July 30 (a −4.5% RH step), so this scan shape evolution is consistent with a drying ambient environment rather than a true VOC chemistry change.
🔬 Correlations & Discoveriestemperature vs humidity (14d) | r = +0.91Hive #1's exceptionally strong deconfounded temperature–humidity coupling (r=+0.91) reflects tight psychrometric co-movement: as the colony's temperature fluctuates across its wider daily arc, the saturation vapor pressure changes in lockstep, so RH tracks temperature even without active bee-mediated hygroregulation — a physical consequence of the dry ambient environment (outdoor RH 20–53%) ventilating through the hive and the bees maintaining a modest temperature differential.📚 Reference: Eouzan et al. 2019, Human et al. 2006, Ellis et al. 2008humidity vs gas_resistance (14d) | r = +0.5The positive humidity–gas-resistance correlation in Hive #1 (higher RH → higher resistance, i.e. fewer apparent VOCs) is a well-documented MOX sensor artifact: adsorbed water on the SnO2 surface partially blocks reaction sites, effectively raising apparent resistance as humidity rises — confirmed here because the July 30 humidity step-change (−4.5% RH) coincides with the resistance moving in the expected direction. This is sensor physics, not a colony-health signal.📚 Reference: Burgues & Marco 2018, Sensors 2022 correction model▹ Action: On your next routine visit within 5–7 days, glance at the brood frames in Hive #1 — its temperature running slightly below its own historical average with fully intact acoustics points to a light-brood or brood-break interval worth confirming, and a quick look at laying pattern will complete the picture. -
Hive #3 healthy Score: 93/100📋 Overall Health
Your Hive #3 remains the apiary's standout performer — brood temperature averaged 92.9°F (33.8°C) with an exceptional 1.9°F (1.1°C) daily range (92.1–94.0°F / 33.4–34.5°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 with textbook stability; 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 for the third consecutive report), and humidity averaged 50.6% — the most stable and optimal in the apiary, sitting squarely in the healthy 50–70% range. Vibration at 20.3 mG avg with kurtosis 2.7 is smooth and near the all-time average of 20.9 mG; gas resistance at 96 kΩ continues above its all-time average of 129 kΩ (low-temperature heater-scan steps rising +19% at 100°C and +15% at 150°C vs. the window start), consistent with the honey-curing VOC load continuing to ease — everything here is running beautifully.
🌅 Diurnal Cycle PatternsHive #3 shows a tight 2.3°F (1.3°C) daily temperature oscillation with 15/15 daily vibration fanning peaks (baseline ~19.5 mG rising to ~32.6 mG, 1.7×). All six vibration bands carry a daily cycle with the dominant rhythm in 5–20 Hz (+3.0 dB swing), a normal low-frequency structural rhythm shared with Hive #1 this period. The acoustic spectrum has essentially no per-band daily rhythm (max 0.7 dB in 350–420 Hz), reflecting the tight brood-nest homeostasis that suppresses acoustic variation — the colony isn't working hard enough to show a daily acoustic cycle, which is the best possible sign. The gas heater-scan dominant rhythm has shifted from 100°C to 150°C between window halves with low-step resistances rising, indicating the VOC fingerprint is becoming less complex at lower plate temperatures — consistent with a honey-curing cycle winding toward completion.
🔬 Correlations & Discoveriestemperature vs humidity (14d) | r = +0.71Hive #3's moderate deconfounded temperature–humidity coupling (r=+0.71) reflects active evaporative thermoregulation during peak summer — water-carrier bees bring droplets to cool the brood, raising local RH in lockstep with temperature excursions, consistent with Human et al. (2006) who document this active water-management strategy in well-populated colonies holding brood near the 34–36°C setpoint.📚 Reference: Human et al. 2006, Ellis et al. 2010, Eouzan et al. 2019outdoor_temp vs battery (14d) | r = +0.45The deconfounded outdoor temperature–battery correlation reflects normal solar-charging dynamics: warmer, sunnier days drive higher panel output and slightly higher battery voltage, while cooler nights allow the pack to recover — a healthy and expected relationship for a solar-powered remote sensor, carrying no colony-health meaning.📚 Reference: Bosch Sensortec BME688 datasheet▹ Action: On your next routine visit within 5–7 days, note the fill level and capping progress of supers in Hive #3 — the heater-scan shape evolution (low-temperature steps continuing to rise) suggests the honey-curing VOC load is easing, and a super observation will anchor this multi-week trend to your season records.