Seasonal RH Drift Allowance Checker

Audit actual seasonal baseline-relative RH drift and represented-day exposure, preserving sign; not a daily range or implicit optimum seasonal setpoint.

Description

Seasonal RH departures compare measurements with a stated seasonal baseline.

Seasonal RH departures compare measurements with a stated seasonal baseline. Signed average drift differs from duration of excessive absolute departure.

Audit actual seasonal baseline-relative RH drift and represented-day exposure, preserving sign; not a daily range or implicit optimum seasonal setpoint.

When to use Seasonal RH Drift Allowance Checker

Use this tool to audit actual seasonal baseline-relative RH drift and represented-day exposure, preserving sign; not a daily range or implicit optimum seasonal setpoint.

Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.

How to use Seasonal RH Drift Allowance Checker and understand its results

Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.
Enter seasonalObservedRhPercent, callerSeasonalRhBaselinePercent, representedDays, callerAllowedBaselineDeparturePercent using the field table and calculation rules, then run the tool.
Read seasonalRhDeparturesPercent, dayWeightedSignedRhDeparturePercent, daysAboveCallerDeparture. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
seasonalObservedRhPercent	Seasonal observed rh percent	list of number	Required
callerSeasonalRhBaselinePercent	Caller seasonal rh baseline percent	list of number	Required
representedDays	Represented days	list of number	Required
callerAllowedBaselineDeparturePercent	Caller allowed baseline departure percent	number	Required

Align RH values in [0,100] and nonnegative represented days of positive total. Return signed differences, weighted mean and days with absolute departure strictly above the nonnegative caller limit.^[1]

Paired lists must be nonempty and have equal lengths.

weighted departure = Σ(observed RH − baseline RH) × represented days/Σ days

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
seasonalRhDeparturesPercent	Seasonal rh departures percent	list of number
dayWeightedSignedRhDeparturePercent	Day weighted signed rh departure percent	number
daysAboveCallerDeparture	Days above caller departure	number

json

{
  "input": {
    "seasonalObservedRhPercent": [
      40,
      55,
      50
    ],
    "callerSeasonalRhBaselinePercent": [
      40,
      45,
      50
    ],
    "representedDays": [
      30,
      60,
      30
    ],
    "callerAllowedBaselineDeparturePercent": 5
  },
  "output": {
    "seasonalRhDeparturesPercent": [
      0,
      10,
      0
    ],
    "dayWeightedSignedRhDeparturePercent": 5,
    "daysAboveCallerDeparture": 60
  }
}

Limitations and assumptions

No optimum seasonal setpoint or daily-fluctuation interpretation is implied.

Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use RH Daily Fluctuation Tolerance Band Checker: Audit observed full-day RH range and resolved maximum slew as distinct caller fluctuation criteria; unresolved intersample extremes remain unknown. For a complementary task, use Temperature Daily Swing Tolerance Checker: Integrate exact piecewise-linear daily temperature degree-hours outside caller center/band and retain measured swing; unlike RH range/slew, this is excursion magnitude×duration, not preservation safety.

References

Seasonal RH Drift Allowance Checker — tool.io

Similar or alternative tools

RH Daily Fluctuation Tolerance Band Checker
Audit observed full-day RH range and resolved maximum slew as distinct caller fluctuation criteria; unresolved intersample extremes remain unknown.
Temperature Daily Swing Tolerance Checker
Integrate exact piecewise-linear daily temperature degree-hours outside caller center/band and retain measured swing; unlike RH range/slew, this is excursion magnitude×duration, not preservation safety.