{ "slug": "new-orleans-la", "place": { "name": "New Orleans", "state": "LA", "census_name": "New Orleans city", "census_geoid": "2255000", "lat": 30.05342, "lon": -89.9345, "station_distance_km": 31.2 }, "station": { "id": "USW00012916", "name": "NEW ORLEANS INTL AP, LA US", "lat": 29.9933, "lon": -90.2511, "elevation_m": 1.2, "elevation_ft": 4, "source_urls": { "monthly": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00012916.csv", "annual": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00012916.csv" } }, "period": "1991-2020", "units": { "temperature": "F", "precipitation": "in", "snowfall": "in", "days": "days", "dates": "MM-DD", "prob_low_le_32f_pct": "percent" }, "months": [ { "month": 1, "name": "January", "high_f": 62.5, "low_f": 46.1, "mean_f": 54.3, "precip_in": 5.18, "snow_in": 0.0, "days_precip_ge_0_01in": 9.5, "days_precip_ge_0_10in": 6.7, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.0, "days_high_le_32f": 0.0, "days_low_le_32f": 2.9, "prob_low_le_32f_pct": 61.0 }, { "month": 2, "name": "February", "high_f": 66.4, "low_f": 49.7, "mean_f": 58.0, "precip_in": 4.13, "snow_in": 0.0, "days_precip_ge_0_01in": 9.0, "days_precip_ge_0_10in": 5.7, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.0, "days_high_le_32f": 0.0, "days_low_le_32f": 0.9, "prob_low_le_32f_pct": 34.7 }, { "month": 3, "name": "March", "high_f": 72.3, "low_f": 55.3, "mean_f": 63.8, "precip_in": 4.36, "snow_in": 0.0, "days_precip_ge_0_01in": 8.1, "days_precip_ge_0_10in": 5.1, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.0, "days_high_le_32f": 0.0, "days_low_le_32f": 0.2, "prob_low_le_32f_pct": 6.7 }, { "month": 4, "name": "April", "high_f": 78.5, "low_f": 61.7, "mean_f": 70.1, "precip_in": 5.22, "snow_in": 0.0, "days_precip_ge_0_01in": 7.3, "days_precip_ge_0_10in": 5.0, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.2, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 5, "name": "May", "high_f": 85.3, "low_f": 69.0, "mean_f": 77.1, "precip_in": 5.64, "snow_in": 0.0, "days_precip_ge_0_01in": 7.8, "days_precip_ge_0_10in": 5.3, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 5.9, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 6, "name": "June", "high_f": 90.0, "low_f": 74.7, "mean_f": 82.4, "precip_in": 7.62, "snow_in": 0.0, "days_precip_ge_0_01in": 12.7, "days_precip_ge_0_10in": 8.9, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 18.4, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 7, "name": "July", "high_f": 91.4, "low_f": 76.5, "mean_f": 83.9, "precip_in": 6.79, "snow_in": 0.0, "days_precip_ge_0_01in": 13.9, "days_precip_ge_0_10in": 9.4, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 22.9, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 8, "name": "August", "high_f": 91.3, "low_f": 76.6, "mean_f": 84.0, "precip_in": 6.91, "snow_in": 0.0, "days_precip_ge_0_01in": 13.6, "days_precip_ge_0_10in": 9.5, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 23.0, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 9, "name": "September", "high_f": 88.1, "low_f": 73.5, "mean_f": 80.8, "precip_in": 5.11, "snow_in": 0.0, "days_precip_ge_0_01in": 9.8, "days_precip_ge_0_10in": 6.7, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 12.8, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 10, "name": "October", "high_f": 80.6, "low_f": 64.3, "mean_f": 72.5, "precip_in": 3.7, "snow_in": 0.0, "days_precip_ge_0_01in": 7.1, "days_precip_ge_0_10in": 4.3, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 2.0, "days_high_le_32f": 0.0, "days_low_le_32f": 0.0, "prob_low_le_32f_pct": 0.0 }, { "month": 11, "name": "November", "high_f": 71.2, "low_f": 53.7, "mean_f": 62.4, "precip_in": 3.87, "snow_in": 0.0, "days_precip_ge_0_01in": 7.1, "days_precip_ge_0_10in": 4.6, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.0, "days_high_le_32f": 0.0, "days_low_le_32f": 0.4, "prob_low_le_32f_pct": 7.5 }, { "month": 12, "name": "December", "high_f": 64.8, "low_f": 48.4, "mean_f": 56.6, "precip_in": 4.82, "snow_in": 0.0, "days_precip_ge_0_01in": 9.2, "days_precip_ge_0_10in": 6.2, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 0.0, "days_high_le_32f": 0.0, "days_low_le_32f": 1.0, "prob_low_le_32f_pct": 39.6 } ], "annual": { "high_f": 78.5, "low_f": 62.5, "mean_f": 70.5, "precip_in": 63.35, "snow_in": 0.0, "days_precip_ge_0_01in": 115.1, "days_snow_ge_1_0in": 0.0, "days_high_ge_90f": 85.2, "days_high_le_32f": 0.0, "days_low_le_32f": 5.4 }, "frost": { "semantics": { "last_spring": "PRBLST: an N% chance that the last night at or below the threshold comes on or after this date", "first_fall": "PRBFST: an N% chance that the first night at or below the threshold has come by this date", "season_days": "PRBGSL: length of the season above the threshold, days; P50 is the median" }, "thresholds_f": [ 36, 32, 28, 24, 20, 16 ], "probabilities_pct": [ 10, 20, 30, 40, 50, 60, 70, 80, 90 ], "table": { "36": { "status": "computed", "freeze_in_most_years": true, "last_spring": { "10": "03-12", "20": "03-05", "30": "02-27", "40": "02-22", "50": "02-16", "60": "02-09", "70": "02-02", "80": "01-28", "90": "01-20" }, "first_fall": { "10": "11-16", "20": "11-25", "30": "11-30", "40": "12-05", "50": "12-09", "60": "12-16", "70": "12-23", "80": "12-31", "90": "01-08" }, "season_days": { "10": 332.0, "20": 320.0, "30": 311.0, "40": 304.0, "50": 297.0, "60": 290.0, "70": 282.0, "80": 273.0, "90": 261.0 } }, "32": { "status": "computed", "freeze_in_most_years": true, "last_spring": { "10": "02-27", "20": "02-18", "30": "02-08", "40": "02-02", "50": "01-30", "60": "01-25", "70": "01-18", "80": "01-09", "90": "12-29" }, "first_fall": { "10": "12-01", "20": "12-08", "30": "12-17", "40": "12-24", "50": "12-31", "60": "01-03", "70": "01-08", "80": "01-16", "90": "01-31" }, "season_days": { "10": 365.0, "20": 359.0, "30": 350.0, "40": 339.0, "50": 333.0, "60": 326.0, "70": 318.0, "80": 308.0, "90": 296.0 } }, "28": { "status": "computed", "freeze_in_most_years": false, "last_spring": { "10": "02-14", "20": "02-05", "30": "01-31", "40": "01-25", "50": "01-20", "60": "01-15", "70": "01-09", "80": "01-03", "90": "12-24" }, "first_fall": { "10": "12-11", "20": "12-24", "30": "01-01", "40": "01-04", "50": "01-07", "60": "01-13", "70": "01-19", "80": "01-28", "90": "02-06" }, "season_days": { "10": 365.0, "20": 365.0, "30": 365.0, "40": 365.0, "50": 365.0, "60": 357.0, "70": 347.0, "80": 337.0, "90": 327.0 } }, "24": { "status": "computed", "freeze_in_most_years": false, "last_spring": { "10": "02-09", "20": "02-01", "30": "01-26", "40": "01-22", "50": "01-18", "60": "01-13", "70": "01-09", "80": "01-05", "90": "01-01" }, "first_fall": { "10": "12-24", "20": "01-02", "30": "01-05", "40": "01-08", "50": "01-12", "60": "01-17", "70": "01-21", "80": "01-28", "90": "02-08" }, "season_days": { "10": 365.0, "20": 365.0, "30": 365.0, "40": 365.0, "50": 365.0, "60": 365.0, "70": 365.0, "80": 365.0, "90": 352.0 } }, "20": { "status": "no_freeze_typical_year", "freeze_in_most_years": false, "last_spring": { "10": null, "20": null, "30": null, "40": null, "50": null, "60": null, "70": null, "80": null, "90": null }, "first_fall": { "10": null, "20": null, "30": null, "40": null, "50": null, "60": null, "70": null, "80": null, "90": null }, "season_days": { "10": 365.0, "20": 365.0, "30": 365.0, "40": 365.0, "50": 365.0, "60": 365.0, "70": 365.0, "80": 365.0, "90": 365.0 } }, "16": { "status": "no_freeze_typical_year", "freeze_in_most_years": false, "last_spring": { "10": null, "20": null, "30": null, "40": null, "50": null, "60": null, "70": null, "80": null, "90": null }, "first_fall": { "10": null, "20": null, "30": null, "40": null, "50": null, "60": null, "70": null, "80": null, "90": null }, "season_days": { "10": 365.0, "20": 365.0, "30": 365.0, "40": 365.0, "50": 365.0, "60": 365.0, "70": 365.0, "80": 365.0, "90": 365.0 } } }, "notes": [ "T16: null cells carry NCEI flags ['Y']", "T20: null cells carry NCEI flags ['Y']" ] }, "derived": { "hottest_month": { "month": 8, "name": "August", "value": 84.0 }, "coldest_month": { "month": 1, "name": "January", "value": 54.3 }, "hottest_month_by_high": { "month": 7, "name": "July", "value": 91.4 }, "wettest_month": { "month": 6, "name": "June", "value": 7.62 }, "driest_month": { "month": 10, "name": "October", "value": 3.7 }, "snowiest_month": null, "winter": "mild", "summer": "hot", "precipitation": "very wet", "snow": "rare or none", "annual_precip_in": 63.35, "annual_snow_in": 0.0, "annual_range_f": 29.7, "mean_daily_range_f": 16.1, "months_high_ge_90f": [ 6, 7, 8 ], "months_low_le_32f": [], "last_spring_32f_p50": "01-30", "first_fall_32f_p50": "12-31", "freeze_free_days_p50": 333.0, "freeze_free_span_days_p50": 335 }, "rules": { "hottest_coldest_month": "by monthly mean temperature (MLY-TAVG-NORMAL); ties go to the earlier month", "wettest_driest_month": "by monthly precipitation normal (MLY-PRCP-NORMAL); ties go to the earlier month", "winter": { "basis": "mean temperature of the coldest month, F", "bands": [ [ null, 20, "very cold" ], [ 20, 32, "cold" ], [ 32, 45, "cool" ], [ 45, 60, "mild" ], [ 60, null, "warm" ] ] }, "summer": { "basis": "mean daily high of the hottest month (by high), F", "bands": [ [ null, 70, "cool" ], [ 70, 80, "mild" ], [ 80, 90, "warm" ], [ 90, 100, "hot" ], [ 100, null, "very hot" ] ] }, "precipitation": { "basis": "annual precipitation normal, inches (sum of months if no annual value)", "bands": [ [ null, 10, "arid" ], [ 10, 20, "semi-arid" ], [ 20, 40, "moderate" ], [ 40, 60, "wet" ], [ 60, null, "very wet" ] ] }, "snow": { "basis": "annual snowfall normal, inches; 'no data' when NOAA publishes no snowfall normal", "bands": [ [ null, 1, "rare or none" ], [ 1, 12, "light" ], [ 12, 36, "moderate" ], [ 36, 72, "heavy" ], [ 72, null, "very heavy" ] ] }, "bands": "lower bound inclusive, upper bound exclusive", "frost_free": "true when the 32F last-spring and first-fall P50 dates are -9999 with flag Y (insufficient values) and the 32F growing season P50 is 365 days or the annual number of nights at or below 32F rounds to 0.0", "freeze_free_days_p50": "NOAA ANN-TMIN-PRBGSL-T32FP50 (median length of the 32F freeze-free season), as published", "freeze_rare": "true when 32F dates are published but the 32F growing season P50 is 365 days: no 32F night in at least half of years; the P50 spring and fall dates then cross and freeze_free_span_days_p50 is null", "freeze_free_span_days_p50": "days from the 32F P50 last-spring date to the 32F P50 first-fall date (next year if the fall date is earlier in the calendar); differs from the NOAA median season length because a median of lengths is not the span between median dates" }, "flags": { "frost_free": false, "freeze_rare": false, "frost_data_missing": false, "year_round_frost_risk": false, "snow_normal_absent": false, "incomplete_months": [] }, "quality": { "high_f": { "column": "MLY-TMAX-NORMAL", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 25, "missing_months": 0 }, "low_f": { "column": "MLY-TMIN-NORMAL", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 24, "missing_months": 0 }, "mean_f": { "column": "MLY-TAVG-NORMAL", "absent": false, "comp_flags": [ "R" ], "meas_flags": [], "years_min": 24, "missing_months": 0 }, "precip_in": { "column": "MLY-PRCP-NORMAL", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 29, "missing_months": 0 }, "snow_in": { "column": "MLY-SNOW-NORMAL", "absent": false, "comp_flags": [ "P" ], "meas_flags": [], "years_min": 12, "missing_months": 0 }, "days_precip_ge_0_01in": { "column": "MLY-PRCP-AVGNDS-GE001HI", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 30, "missing_months": 0 }, "days_precip_ge_0_10in": { "column": "MLY-PRCP-AVGNDS-GE010HI", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 30, "missing_months": 0 }, "days_snow_ge_1_0in": { "column": "MLY-SNOW-AVGNDS-GE010TI", "absent": false, "comp_flags": [ "P" ], "meas_flags": [], "years_min": 14, "missing_months": 0 }, "days_high_ge_90f": { "column": "MLY-TMAX-AVGNDS-GRTH090", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 25, "missing_months": 0 }, "days_high_le_32f": { "column": "MLY-TMAX-AVGNDS-LSTH032", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 25, "missing_months": 0 }, "days_low_le_32f": { "column": "MLY-TMIN-AVGNDS-LSTH032", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 24, "missing_months": 0 }, "prob_low_le_32f_pct": { "column": "MLY-TMIN-PRBOCC-LSTH032", "absent": false, "comp_flags": [ "S" ], "meas_flags": [], "years_min": 24, "missing_months": 0 } }, "citation": { "monthly": "Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00012916 (NEW ORLEANS INTL AP, LA US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.", "annual": "Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00012916 (NEW ORLEANS INTL AP, LA US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.", "metadata_records": [ "https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C01620", "https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C01619" ] }, "retrieved": { "monthly": "2026-10-09", "annual": "2026-10-09" } }