{
    "dataset": "Ilystics weather delay days \u2014 Hartford, CT",
    "landingPage": "https://ilystics.com/weather-delay-days/hartford-ct",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "attribution": "Ilystics LLC, https://ilystics.com",
    "sourceData": "NOAA NCEI Global Historical Climatology Network - Daily (GHCND), U.S. Government public domain",
    "algorithmVersion": "v2.3.0",
    "generatedAt": "2026-08-23T17:12:33+00:00",
    "baseline": {
        "startYear": 2016,
        "endYear": 2025,
        "observedDays": 3620
    },
    "location": {
        "metro": "Hartford",
        "state": "CT",
        "lat": 41.7658,
        "lng": -72.6734
    },
    "soilBasis": {
        "effectiveSoil": "silt",
        "baseDryingDays": 2,
        "label": "Silt, 2.0 base drying day(s)"
    },
    "station": [],
    "scope": "Soil-dependent site work only: earthwork, grading, excavation, foundations and underground utilities. Enclosed and vertical construction is not modelled.",
    "readMe": "Monthly figures are independent baselines and must not be summed into an annual total: doing so assumes a jobsite never improves over a year. See https://ilystics.com/weather-delay-days for the full explanation.",
    "months": [
        {
            "month": 1,
            "monthName": "January",
            "avgPrecipInches": 3.23,
            "lostWorkdaysMean": 16,
            "lostWorkdaysMedian": 18,
            "abnormalThreshold": 21,
            "dryingDaysPerRainDay": 1.95,
            "workdayCoveragePct": 100,
            "lostWorkdaysByYear": {
                "2016": 10,
                "2017": 21,
                "2018": 20,
                "2019": 21,
                "2020": 11,
                "2021": 8,
                "2022": 19,
                "2023": 18,
                "2024": 18,
                "2025": 14
            }
        },
        {
            "month": 2,
            "monthName": "February",
            "avgPrecipInches": 2.91,
            "lostWorkdaysMean": 14,
            "lostWorkdaysMedian": 16,
            "abnormalThreshold": 18,
            "dryingDaysPerRainDay": 1.32,
            "workdayCoveragePct": 100,
            "lostWorkdaysByYear": {
                "2016": 15,
                "2017": 6,
                "2018": 17,
                "2019": 17,
                "2020": 16,
                "2021": 16,
                "2022": 18,
                "2023": 8,
                "2024": 8,
                "2025": 16
            }
        },
        {
            "month": 3,
            "monthName": "March",
            "avgPrecipInches": 3.63,
            "lostWorkdaysMean": 13,
            "lostWorkdaysMedian": 14,
            "abnormalThreshold": 15,
            "dryingDaysPerRainDay": 1.4,
            "workdayCoveragePct": 100,
            "lostWorkdaysByYear": {
                "2016": 15,
                "2017": 14,
                "2018": 8,
                "2019": 10,
                "2020": 16,
                "2021": 11,
                "2022": 11,
                "2023": 14,
                "2024": 13,
                "2025": 14
            }
        },
        {
            "month": 4,
            "monthName": "April",
            "avgPrecipInches": 4.23,
            "lostWorkdaysMean": 13,
            "lostWorkdaysMedian": 13,
            "abnormalThreshold": 17,
            "dryingDaysPerRainDay": 1.21,
            "workdayCoveragePct": 100,
            "lostWorkdaysByYear": {
                "2016": 12,
                "2017": 10,
                "2018": 19,
                "2019": 17,
                "2020": 18,
                "2021": 12,
                "2022": 14,
                "2023": 4,
                "2024": 14,
                "2025": 8
            }
        },
        {
            "month": 5,
            "monthName": "May",
            "avgPrecipInches": 3.34,
            "lostWorkdaysMean": 10,
            "lostWorkdaysMedian": 10,
            "abnormalThreshold": 15,
            "dryingDaysPerRainDay": 1.13,
            "workdayCoveragePct": 99.6,
            "lostWorkdaysByYear": {
                "2016": 8,
                "2017": 12.1,
                "2018": 11,
                "2019": 19.1,
                "2020": 5,
                "2021": 4,
                "2022": 5,
                "2023": 7,
                "2024": 16.1,
                "2025": 13.1
            }
        },
        {
            "month": 6,
            "monthName": "June",
            "avgPrecipInches": 2.45,
            "lostWorkdaysMean": 6,
            "lostWorkdaysMedian": 6,
            "abnormalThreshold": 10,
            "dryingDaysPerRainDay": 1.38,
            "workdayCoveragePct": 99.5,
            "lostWorkdaysByYear": {
                "2016": 1,
                "2017": 12.1,
                "2018": 5,
                "2019": 10,
                "2020": 2,
                "2021": 7,
                "2022": 12.1,
                "2023": 5,
                "2024": 7,
                "2025": 1
            }
        },
        {
            "month": 7,
            "monthName": "July",
            "avgPrecipInches": 5.56,
            "lostWorkdaysMean": 10,
            "lostWorkdaysMedian": 9,
            "abnormalThreshold": 15,
            "dryingDaysPerRainDay": 1.08,
            "workdayCoveragePct": 99.5,
            "lostWorkdaysByYear": {
                "2016": 9,
                "2017": 9,
                "2018": 15.1,
                "2019": 6,
                "2020": 5,
                "2021": 18.1,
                "2022": 5,
                "2023": 18.1,
                "2024": 9,
                "2025": 6
            }
        },
        {
            "month": 8,
            "monthName": "August",
            "avgPrecipInches": 3.52,
            "lostWorkdaysMean": 7,
            "lostWorkdaysMedian": 7,
            "abnormalThreshold": 11,
            "dryingDaysPerRainDay": 1.3,
            "workdayCoveragePct": 97.3,
            "lostWorkdaysByYear": {
                "2016": 7.2,
                "2017": 7.2,
                "2018": 8.2,
                "2019": 6.2,
                "2020": 3.1,
                "2021": 7.2,
                "2022": 7.2,
                "2023": 10.3,
                "2024": 14.4,
                "2025": 0
            }
        },
        {
            "month": 9,
            "monthName": "September",
            "avgPrecipInches": 4.58,
            "lostWorkdaysMean": 9,
            "lostWorkdaysMedian": 7,
            "abnormalThreshold": 14,
            "dryingDaysPerRainDay": 1.1,
            "workdayCoveragePct": 99.5,
            "lostWorkdaysByYear": {
                "2016": 5,
                "2017": 6,
                "2018": 12.1,
                "2019": 6,
                "2020": 4,
                "2021": 16.1,
                "2022": 12.1,
                "2023": 16.1,
                "2024": 2,
                "2025": 7
            }
        },
        {
            "month": 10,
            "monthName": "October",
            "avgPrecipInches": 4.31,
            "lostWorkdaysMean": 9,
            "lostWorkdaysMedian": 8,
            "abnormalThreshold": 15,
            "dryingDaysPerRainDay": 1.12,
            "workdayCoveragePct": 99.1,
            "lostWorkdaysByYear": {
                "2016": 4,
                "2017": 6.1,
                "2018": 13.1,
                "2019": 20.2,
                "2020": 12.1,
                "2021": 7.1,
                "2022": 9.1,
                "2023": 6.1,
                "2024": 0,
                "2025": 12.1
            }
        },
        {
            "month": 11,
            "monthName": "November",
            "avgPrecipInches": 2.78,
            "lostWorkdaysMean": 11,
            "lostWorkdaysMedian": 10,
            "abnormalThreshold": 16,
            "dryingDaysPerRainDay": 1.69,
            "workdayCoveragePct": 96.7,
            "lostWorkdaysByYear": {
                "2016": 9.3,
                "2017": 11.4,
                "2018": 22.7,
                "2019": 12.4,
                "2020": 15.5,
                "2021": 8.3,
                "2022": 10.3,
                "2023": 7.2,
                "2024": 5.2,
                "2025": 9.3
            }
        },
        {
            "month": 12,
            "monthName": "December",
            "avgPrecipInches": 4.29,
            "lostWorkdaysMean": 15,
            "lostWorkdaysMedian": 14,
            "abnormalThreshold": 17,
            "dryingDaysPerRainDay": 1.74,
            "workdayCoveragePct": 98.6,
            "lostWorkdaysByYear": {
                "2016": 16.2,
                "2017": 14.2,
                "2018": 10.1,
                "2019": 17.2,
                "2020": 13.2,
                "2021": 13.2,
                "2022": 13.2,
                "2023": 14.2,
                "2024": 18.2,
                "2025": 16.2
            }
        }
    ]
}