As of August 9, 2026, all four hives are navigating another classic hot, arid August day — outdoor temperatures swinging 63.8–99.6°F (17.7–37.5°C) with humidity as low as 10.9% — with Hive #2 and Hive #3 holding textbook brood clamping, Hive #1's acoustics perfectly matched to baseline for yet another consecutive report, and Iris continuing her gradual warming arc now averaging 91.1°F (32.9°C) with broad-spectrum sound energy slightly above her own historical norm.
All four hives maintain vigorous daily fanning and foraging vibration rhythms under the apiary's characteristically wide outdoor swing, with Hive #2's 1.4°F (0.8°C) and Hive #3's 1.9°F (1.1°C) brood arcs confirming the deepest thermal stability, while Iris's 3.9°F (2.2°C) and Hive #1's 7.1°F (3.9°C) arcs reflect colonies whose brood footprints produce wider but expected swings under peak August heat.
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Iris healthy Score: 80/100📋 Overall Health
Your Iris hive continues her encouraging multi-week warming trend — the 24h average of 91.1°F (32.9°C) is +0.2°F (+0.1°C) above her all-time average of 90.9°F (32.7°C), and the four-week trajectory (90.9 → 90.9 → 90.7 → 92.1 → 91.1°F) remains directionally upward and closing on the ideal 93–97°F (34–36°C) brood band; humidity averaged 42.6%, consistent with her own historical range under extreme August dryness. All 10 sound bands remain above their all-time baseline by +0.3–1.0 dB (24h avg −9.5 dBFS vs. all-time −10.1 dBFS), vibration is steady at 17.2 mG avg with smooth kurtosis 2.5 and a healthy 14/15-day fanning rhythm, and gas resistance at ~425 kΩ is right at its all-time average of ~438 kΩ — everything here is comfortably normal; watch for the brood temperature to enter the 93–97°F band as the colony continues building momentum.
🌅 Diurnal Cycle PatternsIris shows an active 3.9°F (2.2°C) daily temperature arc (89.6–93.5°F / 32.0–34.1°C), peaking during the warmest part of the day and recovering overnight — a natural pattern for a colony whose brood footprint is still consolidating under extreme ambient heat; the dominant acoustic rhythm band shifted from 200–260 Hz in the first half to 100–150 Hz in the second, which is within the range of normal diurnal colony activity variation and not a concern on its own. Vibration's dominant rhythm shifted from 160–200 Hz to 80–120 Hz across the window — consistent with fanning activity migrating toward the colony's metabolic baseline band as peak heat passed; gas heater-scan shows a modest 4-band daily cycle led by the 200°C step (+14% swing), reflecting thermally-driven VOC release that co-varies with in-hive temperature as expected (deconfounded r=+0.49).
🔬 Correlations & Discoveriestemperature_in vs humidity_in (14d) | r = +0.9The exceptionally strong deconfounded coupling between in-hive temperature and humidity in Iris (r=+0.90, eff_n=1529) reflects active hygroregulation: as brood-area temperature rises during the hottest part of the day, bees deploy water-carrying evaporative cooling, which raises in-hive RH in concert — a textbook sign of a colony actively managing both thermal and moisture homeostasis simultaneously (Human et al. 2006). The partial correlation controlling for outdoor temperature (r=+0.33) confirms this is genuinely hive-internal physiology, not a shared weather artifact.📚 Reference: Eouzan et al. 2019 (PMC6368279), Human, Nicolson & Dietemann 2006, Ellis et al. 2008▹ Action: On your next routine visit, glance at the brood frames in Iris to confirm fresh eggs and a solid laying pattern — the sustained broad-spectrum acoustic brightening and the continuing multi-week temperature rise both point to a colony building real momentum heading deeper into August. -
Hive #2 healthy Score: 90/100📋 Overall Health
Your Hive #2 remains the apiary's thermal standout — brood temperature averaged 95.1°F (35.0°C) with a compressed 1.4°F (0.8°C) daily arc (94.3–95.7°F / 34.6–35.4°C), exactly on its all-time average of 95.1°F (35.1°C) and squarely in the ideal 93–97°F (34–36°C) zone; humidity averaged 43.4%, within historical range, and all 10 sound bands sit +0.2–1.6 dB above their all-time baseline (24h avg −8.5 dBFS vs. all-time −9.6 dBFS) confirming a fully active, populous colony. Vibration is healthy at 14.9 mG avg with kurtosis 2.7 and a robust 15/15-day fanning rhythm peaking at ~4.2× baseline; gas resistance at ~65 kΩ remains well below its all-time average of ~113 kΩ but with brood temperature and acoustics perfectly intact this sustained shift continues to reflect active honey-ripening and processing VOC load — nothing here requires any action.
🌅 Diurnal Cycle PatternsHive #2 holds a remarkably compressed 1.4°F (0.8°C) daily temperature arc — the tightest in the apiary — demonstrating peak brood-nest stenothermy; sound energy showed a natural foraging-cycle pattern with the first half averaging −7.4 dBFS and the second half −9.6 dBFS (−2.2 dBFS), consistent with daily foraging activity winding down as heat peaks. The dominant acoustic rhythm band shifted from 200–260 Hz to 100–150 Hz across the window, and low-band energy (100–260 Hz) has risen +3.4 dB over 14 days — consistent with increased fanning and processing activity, not a disturbance signal; gas heater-scan shows the strongest daily rhythm at the 100°C step (+30% swing) with the low-temperature steps (100–200°C) declining a further ~36–45% in the second half, indicating a sustained shift toward heavier volatiles consistent with active honey processing (Bankova et al. 2000).
🔬 Correlations & Discoveriestemperature_in vs gas_resistance (14d) | r = +0.76The strong deconfounded temperature–gas-resistance coupling in Hive #2 (r=+0.76, eff_n=769) is a direct signature of thermally-driven VOC release: as brood-nest temperature rises, volatiles from honey ripening, propolis, and brood pheromones (including E-β-ocimene from expanding larval cohorts) evaporate more readily, reducing MOX resistance — a physically expected and biologically meaningful relationship for a high-activity colony in August heat, fully consistent with the compressed brood arc and stable acoustics (Maisonnasse et al. 2010).📚 Reference: Burgues & Marco 2018, Sensors 18(2):339, Maisonnasse et al. 2010, PLoS ONE 5(10):e13531▹ Action: On your next routine visit, note the fill level and capping progress of the supers in Hive #2 — the sustained low-resistance heater-scan shape with heavy-volatile emphasis and the 14-day broadband acoustic rise together suggest active honey processing is well underway and worth recording in your season notes. -
Hive #1 healthy Score: 72/100📋 Overall Health
Your Hive #1 continues its acoustically perfect streak — all 10 sound bands match their all-time baseline within ±0.2 dB (24h avg −16.3 dBFS vs. all-time −16.4 dBFS, an essentially exact match for another consecutive report), confirming the worker population is fully intact; the 24h average of 86.5°F (30.3°C) is −2.5°F (−1.4°C) below the all-time average of 89.0°F (31.7°C), and the 14-day cooling drift of −3.9°F (−2.1°C) bears watching — but with acoustics showing zero deviation from baseline, this most likely reflects a natural late-summer brood-size reduction or a brief queen laying pause rather than population loss. Humidity averaged 34.9%, below the 50–70% optimal band but consistent with Hive #1's own historical baseline (all-time avg 40.9%) under extreme August dryness; vibration at 16.4 mG avg with kurtosis 3.2 and a 15/15-day fanning rhythm is right on the all-time average of 16.4 mG — watch whether the temperature drift continues or stabilizes over the next week.
🌅 Diurnal Cycle PatternsHive #1 shows the widest daily temperature arc in the apiary at 7.1°F (3.9°C) (82.5–89.6°F / 28.1–32.0°C), reflecting a colony whose brood footprint is smaller and thus provides less thermal mass to buffer the wide outdoor swing of 63.8–99.6°F (17.7–37.5°C) — this is a natural characteristic of Hive #1's own baseline, not a new anomaly; sound shows no strong per-band daily rhythm (max 1.0 dB in 600–800 Hz), which is consistent with this hive's own spectral history and is not a concern. The gas heater-scan shows its strongest daily cycle at the 100°C step (+41% swing) with the dominant rhythm band shifting from 100°C to 150°C across the window, and the 150°C and 280°C rhythms are strengthening — reflecting increasing thermally-driven volatile variability consistent with the widening daily temperature arc; the partial correlation gas resistance vs. in-hive temp controlling for outdoor temperature (r=−0.65) indicates that as hive temperature rises within the day, gas resistance falls, a normal inverse MOX response to thermally-enhanced VOC release.
🔬 Correlations & Discoveriestemperature_in vs humidity_in (14d) | r = +0.85The strong deconfounded in-hive temperature–humidity coupling in Hive #1 (r=+0.85, eff_n=1211), with the partial correlation controlling for outdoor temperature remaining robust at r=+0.59, confirms this is genuine colony-internal hygroregulation: bees are actively modulating moisture alongside temperature, deploying water evaporation as the colony warms — a healthy thermoregulatory response even as the overall brood temperature sits below the ideal band, consistent with a colony sustaining active water-worker activity across a wide daily thermal swing (Human et al. 2006).📚 Reference: Eouzan et al. 2019 (PMC6368279), Human, Nicolson & Dietemann 2006, Ellis et al. 2008⚠️ Issue: 14-day cooling drift of −3.9°F (−2.1°C) in brood temperature (from 90.4°F to 86.5°F / 32.4°C to 30.3°C), now sitting below the all-time average of 89.0°F (31.7°C) — acoustics are perfectly stable, indicating the worker population is intact; most likely a natural late-summer brood reduction or brief laying pause, but worth confirming on next inspection.▹ Action: On your next routine visit, check the brood frames in Hive #1 — the perfectly stable acoustics confirm a fully present population, and a quick look at eggs and laying pattern will clarify whether the gentle 14-day temperature cooling reflects a natural August brood contraction or a brief queen laying pause that warrants follow-up. -
Hive #3 healthy Score: 95/100📋 Overall Health
Your Hive #3 remains the apiary's standout performer for yet another consecutive report — brood temperature averaged 93.7°F (34.3°C) with a textbook compressed 1.9°F (1.1°C) daily arc (92.9–94.8°F / 33.8–34.9°C), right on its all-time average of 93.6°F (34.2°C) and firmly in the ideal 93–97°F (34–36°C) zone; all 10 sound bands match their all-time baseline within ±0.2 dB (24h avg −16.3 dBFS vs. all-time −16.3 dBFS — a near-perfect match for the eleventh consecutive report), and humidity averaged 44.9%, healthy and within historical range. Vibration at 20.4 mG avg with smooth kurtosis 3.1 and a 15/15-day fanning rhythm is right on the all-time average of 20.6 mG; gas resistance at ~94 kΩ is essentially at its all-time average of ~97.7 kΩ — everything here continues to run beautifully, with no action needed.
🌅 Diurnal Cycle PatternsHive #3 holds a 1.9°F (1.1°C) daily temperature arc — the second-tightest in the apiary — demonstrating sustained brood-nest stenothermy at 93–95°F (34–35°C) across the full 24h window; sound shows no strong per-band daily rhythm (max 0.7 dB in 200–260 Hz), which is fully consistent with this hive's own spectral fingerprint and reflects a mature, settled colony with stable foraging patterns. Vibration shows a healthy daily cycle with the dominant rhythm in 5–20 Hz (3.0 dB), consistent with normal DVAV and substrate-borne foraging rhythms; the gas heater-scan shows no strong per-band daily rhythm (max +9% at the 375°C step), indicating a very stable VOC environment that mirrors the thermal stability — the quietest, most consistent gas fingerprint in the apiary.
🔬 Correlations & Discoveriestemperature_in vs gas_resistance (14d) | r = +0.5The moderate deconfounded temperature–gas-resistance coupling in Hive #3 (r=+0.50, eff_n=720) is weaker than Hive #2's (r=+0.76), consistent with Hive #3's more stable gas fingerprint and tighter temperature arc — the colony's settled, consistent honey-curing pace produces a lower-amplitude VOC signal that varies less with temperature, reflecting mature processing activity rather than the active ripening burst seen next door (Bankova et al. 2000; Maisonnasse et al. 2010).📚 Reference: Maisonnasse et al. 2010, PLoS ONE 5(10):e13531, Bankova et al. 2000, Apidologie 31:3–15▹ Action: On your next routine visit, note the fill level and capping progress of the supers in Hive #3 — the continued perfect acoustic stability and the settled, low-variance gas fingerprint suggest honey curing is at a mature, consistent pace well worth recording in your season notes.