Westchester Co AP Weather Records (USW00094745)
Record envelope, standing records and threshold days for Westchester Co AP (USW00094745), New York, United States, with 81 years of record.
Key Facts for Westchester Co AP
- Westchester Co AP (USW00094745) is a weather station in New York, United States at 41.06 latitude and -73.70 longitude, 113 m (370 ft) above sea level.
- The station reports from 1946 to 2026, 81 years of record.
- 1,464 records set at Westchester Co AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Westchester Co AP set a daily record high minimum temperature of 23.9 C (75.0 F) on 6 August 2026.
About the Station
- Location: New York, United States, 41.06 latitude, -73.70 longitude.
- Elevation: 113 m (370 ft).
- Period of record: 1946 to 2026, 81 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.1 C (70.0 F) | -23.3 C (-9.9 F) | 10.6 C (51.1 F) | -15.6 C (3.9 F) |
| Feb | 25.0 C (77.0 F) | -23.3 C (-9.9 F) | 10.0 C (50.0 F) | -17.2 C (1.0 F) |
| Mar | 27.8 C (82.0 F) | -21.1 C (-6.0 F) | 26.1 C (79.0 F) | -8.9 C (16.0 F) |
| Apr | 33.3 C (91.9 F) | -8.9 C (16.0 F) | 30.6 C (87.1 F) | -3.3 C (26.1 F) |
| May | 35.6 C (96.1 F) | 0.0 C (32.0 F) | 33.9 C (93.0 F) | 4.4 C (39.9 F) |
| Jun | 36.7 C (98.1 F) | 3.9 C (39.0 F) | 33.3 C (91.9 F) | 7.8 C (46.0 F) |
| Jul | 38.9 C (102.0 F) | 7.8 C (46.0 F) | 36.7 C (98.1 F) | 13.9 C (57.0 F) |
| Aug | 38.3 C (100.9 F) | 5.0 C (41.0 F) | 32.2 C (90.0 F) | 13.9 C (57.0 F) |
| Sep | 37.8 C (100.0 F) | 0.0 C (32.0 F) | 28.9 C (84.0 F) | 8.9 C (48.0 F) |
| Oct | 32.2 C (90.0 F) | -4.4 C (24.1 F) | 28.9 C (84.0 F) | 3.9 C (39.0 F) |
| Nov | 26.1 C (79.0 F) | -11.6 C (11.1 F) | n/a | n/a |
| Dec | 23.9 C (75.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 8 |
| 1949 | 20 |
| 1952 | 17 |
| 1953 | 30 |
| 1954 | 24 |
| 1955 | 28 |
| 1956 | 28 |
| 1957 | 20 |
| 1958 | 17 |
| 1959 | 24 |
| 1960 | 16 |
| 1961 | 24 |
| 1962 | 23 |
| 1963 | 30 |
| 1964 | 25 |
| 1965 | 22 |
| 1966 | 33 |
| 1967 | 31 |
| 1968 | 20 |
| 1969 | 6 |
| 1970 | 20 |
| 1971 | 15 |
| 1972 | 21 |
| 1973 | 12 |
| 1974 | 23 |
| 1975 | 20 |
| 1976 | 43 |
| 1977 | 27 |
| 1978 | 29 |
| 1979 | 42 |
| 1980 | 19 |
| 1981 | 13 |
| 1982 | 27 |
| 1983 | 23 |
| 1984 | 14 |
| 1985 | 18 |
| 1986 | 21 |
| 1987 | 26 |
| 1988 | 21 |
| 1989 | 22 |
| 1990 | 25 |
| 1991 | 24 |
| 1992 | 17 |
| 1993 | 27 |
| 1994 | 11 |
| 1995 | 10 |
| 1996 | 15 |
| 1997 | 9 |
| 1998 | 16 |
| 1999 | 13 |
| 2000 | 13 |
| 2001 | 14 |
| 2002 | 23 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 13 |
| 2006 | 12 |
| 2007 | 15 |
| 2008 | 12 |
| 2009 | 14 |
| 2010 | 12 |
| 2011 | 10 |
| 2012 | 15 |
| 2013 | 8 |
| 2014 | 10 |
| 2015 | 26 |
| 2016 | 15 |
| 2017 | 26 |
| 2018 | 24 |
| 2019 | 15 |
| 2020 | 13 |
| 2021 | 17 |
| 2022 | 16 |
| 2023 | 20 |
| 2024 | 10 |
| 2025 | 15 |
| 2026 | 10 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -15.0 C (5.0 F) |
| 1988-08-15 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 1999-07-05 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 1999-07-06 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 2004-09-08 | Record daily precipitation | Record daily precipitation 150.6 mm (5.9 in) |
| 2007-04-15 | Record daily precipitation | Record daily precipitation 173.2 mm (6.8 in) |
Wettest Day of Each Month
Apr: 173.2 mm (6.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 83.6 mm (3.3 in) | 21 January 1979 |
| Feb | 70.4 mm (2.8 in) | 2 February 1973 |
| Mar | 96.3 mm (3.8 in) | 30 March 1951 |
| Apr | 173.2 mm (6.8 in) | 15 April 2007 |
| May | 121.9 mm (4.8 in) | 29 May 1968 |
| Jun | 137.2 mm (5.4 in) | 19 June 1972 |
| Jul | 95.3 mm (3.8 in) | 21 July 2026 |
| Aug | 131.6 mm (5.2 in) | 28 August 2011 |
| Sep | 153.9 mm (6.1 in) | 1 September 2021 |
| Oct | 129.3 mm (5.1 in) | 12 October 1983 |
| Nov | 125.7 mm (4.9 in) | 8 November 1977 |
| Dec | 71.9 mm (2.8 in) | 4 December 1968 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 61 | 17% | No |
| 1949 | 240 | 66% | No |
| 1952 | 274 | 75% | No |
| 1953 | 365 | 100% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 333 | 91% | Yes |
| 1956 | 337 | 92% | Yes |
| 1957 | 361 | 99% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 362 | 99% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 360 | 99% | Yes |
| 1962 | 348 | 95% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 361 | 99% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 361 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 358 | 98% | Yes |
| 1986 | 359 | 98% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 359 | 98% | Yes |
| 1989 | 361 | 99% | Yes |
| 1990 | 357 | 98% | Yes |
| 1991 | 361 | 99% | Yes |
| 1992 | 360 | 98% | Yes |
| 1993 | 355 | 97% | Yes |
| 1994 | 327 | 90% | No |
| 1995 | 329 | 90% | Yes |
| 1996 | 359 | 98% | Yes |
| 1997 | 352 | 96% | Yes |
| 1998 | 357 | 98% | Yes |
| 1999 | 359 | 98% | Yes |
| 2000 | 342 | 93% | Yes |
| 2001 | 355 | 97% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 364 | 99% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 362 | 99% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 359 | 98% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 358 | 98% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 360 | 99% | Yes |
| 2022 | 362 | 99% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 356 | 98% | Yes |
| 2026 | 281 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 6 August 2026 | Westchester Co AP, US | daily high min | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 71 years | 29 of 100 (Routine) |
| 21 July 2026 | Westchester Co AP, US | monthly rain | 95.3 mm (3.8 in) | 7.9 mm (0.31 in) | 4 years | 24 of 100 (Routine) |
| 6 July 2026 | Westchester Co AP, US | daily rain | 40.1 mm (1.6 in) | 13.7 mm (0.5 in) | 76 years | 40 of 100 (Notable) |
| 3 July 2026 | Westchester Co AP, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 2 July 2026 | Westchester Co AP, US | daily high min | 26.1 C (79.0 F) | 1.1 C (2.0 F) | 57 years | 27 of 100 (Routine) |
| 2 July 2026 | Westchester Co AP, US | daily high max | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 57 years | 25 of 100 (Routine) |
| 26 June 2026 | Westchester Co AP, US | daily rain | 26.9 mm (1.1 in) | 1.5 mm (0.06 in) | 64 years | 28 of 100 (Routine) |
| 12 June 2026 | Westchester Co AP, US | daily high min (Tie) | 21.1 C (70.0 F) | tie | 56 years | 5 of 100 (Routine) |
| 11 June 2026 | Westchester Co AP, US | daily high max (Tie) | 33.3 C (91.9 F) | tie | 61 years | 6 of 100 (Routine) |
| 2 June 2026 | Westchester Co AP, US | daily low min | 7.8 C (46.0 F) | 0.5 C (0.9 F) | 55 years | 24 of 100 (Routine) |
| 19 May 2026 | Westchester Co AP, US | daily high min | 17.8 C (64.0 F) | 2.2 C (4.0 F) | 56 years | 29 of 100 (Routine) |
| 25 April 2026 | Westchester Co AP, US | daily rain | 26.2 mm (1.0 in) | 1.3 mm (0.05 in) | 16 years | 12 of 100 (Routine) |
| 21 April 2026 | Westchester Co AP, US | daily low min | -2.8 C (27.0 F) | 1.1 C (2.0 F) | 44 years | 22 of 100 (Routine) |
| 16 April 2026 | Westchester Co AP, US | daily high min | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 13 years | 15 of 100 (Routine) |
| 15 April 2026 | Westchester Co AP, US | daily high max | 30.6 C (87.1 F) | 2.3 C (4.1 F) | 65 years | 30 of 100 (Routine) |
| 15 April 2026 | Westchester Co AP, US | daily high min (Tie) | 14.4 C (57.9 F) | tie | 3 years | 1 of 100 (Routine) |
| 11 March 2026 | Westchester Co AP, US | daily high min | 9.4 C (48.9 F) | 2.7 C (4.9 F) | 20 years | 19 of 100 (Routine) |
| 10 March 2026 | Westchester Co AP, US | daily high max | 26.1 C (79.0 F) | 1.1 C (2.0 F) | 9 years | 10 of 100 (Routine) |
| 19 December 2025 | Westchester Co AP, US | daily high max | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 68 years | 29 of 100 (Routine) |
| 5 December 2025 | Westchester Co AP, US | daily low min (Tie) | -10.0 C (14.0 F) | tie | 59 years | 6 of 100 (Routine) |
Climate Trend
66 complete years, 1953 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1953 | 11.6 C | +0.76 C |
| 1954 | 10.6 C | -0.23 C |
| 1957 | 10.9 C | +0.08 C |
| 1958 | 9.7 C | -1.15 C |
| 1959 | 11.1 C | +0.26 C |
| 1960 | 10.3 C | -0.55 C |
| 1961 | 10.5 C | -0.35 C |
| 1962 | 10.0 C | -0.83 C |
| 1963 | 10.1 C | -0.79 C |
| 1964 | 10.7 C | -0.21 C |
| 1965 | 10.5 C | -0.33 C |
| 1966 | 10.8 C | -0.05 C |
| 1967 | 10.2 C | -0.65 C |
| 1968 | 10.6 C | -0.25 C |
| 1969 | 10.7 C | -0.18 C |
| 1970 | 10.6 C | -0.23 C |
| 1971 | 10.9 C | +0.03 C |
| 1972 | 9.7 C | -1.13 C |
| 1973 | 10.9 C | +0.05 C |
| 1974 | 10.3 C | -0.54 C |
| 1975 | 10.6 C | -0.31 C |
| 1976 | 9.4 C | -1.42 C |
| 1977 | 9.6 C | -1.28 C |
| 1978 | 8.9 C | -2.01 C |
| 1979 | 9.5 C | -1.38 C |
| 1980 | 10.0 C | -0.85 C |
| 1981 | 9.9 C | -0.95 C |
| 1982 | 10.3 C | -0.54 C |
| 1983 | 11.6 C | +0.70 C |
| 1984 | 11.1 C | +0.23 C |
| 1985 | 11.4 C | +0.53 C |
| 1986 | 10.3 C | -0.57 C |
| 1987 | 10.4 C | -0.42 C |
| 1988 | 10.4 C | -0.47 C |
| 1989 | 10.1 C | -0.78 C |
| 1990 | 11.7 C | +0.81 C |
| 1991 | 11.7 C | +0.79 C |
| 1992 | 9.9 C | -1.00 C |
| 1993 | 10.4 C | -0.44 C |
| 1996 | 10.6 C | -0.23 C |
| 1997 | 10.9 C | +0.06 C |
| 1998 | 12.4 C | +1.56 C |
| 1999 | 12.1 C | +1.19 C |
| 2002 | 11.2 C | +0.36 C |
| 2003 | 9.9 C | -0.95 C |
| 2004 | 10.4 C | -0.43 C |
| 2005 | 10.8 C | -0.03 C |
| 2006 | 11.9 C | +1.08 C |
| 2007 | 11.0 C | +0.18 C |
| 2008 | 11.1 C | +0.25 C |
| 2009 | 10.5 C | -0.35 C |
| 2010 | 11.8 C | +0.97 C |
| 2011 | 11.7 C | +0.80 C |
| 2012 | 12.5 C | +1.62 C |
| 2013 | 11.0 C | +0.18 C |
| 2014 | 10.3 C | -0.53 C |
| 2015 | 11.2 C | +0.36 C |
| 2016 | 12.2 C | +1.29 C |
| 2017 | 11.7 C | +0.88 C |
| 2018 | 11.4 C | +0.53 C |
| 2019 | 11.2 C | +0.33 C |
| 2020 | 12.0 C | +1.10 C |
| 2021 | 11.8 C | +0.94 C |
| 2022 | 11.8 C | +0.94 C |
| 2023 | 12.5 C | +1.62 C |
| 2024 | 12.5 C | +1.66 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1953 to 2024. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 66 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1953 to 2024 | 66 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.6) per decade | 1953 to 2024 | 66 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1953 to 2024 | 66 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1946 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 1966 | 35.0 C (95.0 F) | 77 |
| Coldest night (TNn) | -23.3 C (-9.9 F) | 1961 | -17.2 C (1.0 F) | 77 |
| Wettest day (Rx1day) | 173.2 mm (6.8 in) | 2007 | 78.0 mm (3.1 in) | 81 |
| Wettest five days (Rx5day) | 263.2 mm (10.4 in) | 1975 | 107.5 mm (4.2 in) | 81 |
| Longest dry spell (CDD) | 38 days | 1995 | 18 days | 81 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1946 | n/a |
| 1947 | n/a |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | 36.7 C (98.1 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 36.7 C (98.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 32.2 C (90.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 33.3 C (91.9 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 35.6 C (96.1 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 33.9 C (93.0 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 33.9 C (93.0 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 32.2 C (90.0 F) |
| 1977 | 37.2 C (99.0 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 31.7 C (89.1 F) |
| 1980 | 36.1 C (97.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 33.3 C (91.9 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 33.9 C (93.0 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 32.8 C (91.0 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 35.0 C (95.0 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 32.8 C (91.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 32.2 C (90.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 34.4 C (93.9 F) |
| 2003 | 32.8 C (91.0 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 36.1 C (97.0 F) |
| 2007 | 33.9 C (93.0 F) |
| 2008 | 35.0 C (95.0 F) |
| 2009 | 32.8 C (91.0 F) |
| 2010 | 38.9 C (102.0 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 34.4 C (93.9 F) |
| 2019 | 35.0 C (95.0 F) |
| 2020 | 33.9 C (93.0 F) |
| 2021 | 35.0 C (95.0 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 33.9 C (93.0 F) |
| 2024 | 33.9 C (93.0 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 36.7 C (98.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1946 | n/a |
| 1947 | n/a |
| 1948 | 2.8 C (37.0 F) |
| 1949 | -9.4 C (15.1 F) |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | -13.3 C (8.1 F) |
| 1953 | -12.2 C (10.0 F) |
| 1954 | -17.2 C (1.0 F) |
| 1955 | -19.4 C (-2.9 F) |
| 1956 | -13.3 C (8.1 F) |
| 1957 | -21.1 C (-6.0 F) |
| 1958 | -18.3 C (-0.9 F) |
| 1959 | -16.1 C (3.0 F) |
| 1960 | -16.1 C (3.0 F) |
| 1961 | -23.3 C (-9.9 F) |
| 1962 | -19.4 C (-2.9 F) |
| 1963 | -20.0 C (-4.0 F) |
| 1964 | -15.6 C (3.9 F) |
| 1965 | -18.3 C (-0.9 F) |
| 1966 | -15.0 C (5.0 F) |
| 1967 | -21.1 C (-6.0 F) |
| 1968 | -21.7 C (-7.1 F) |
| 1969 | -15.0 C (5.0 F) |
| 1970 | -17.8 C (0.0 F) |
| 1971 | -17.2 C (1.0 F) |
| 1972 | -16.7 C (1.9 F) |
| 1973 | -16.7 C (1.9 F) |
| 1974 | -18.3 C (-0.9 F) |
| 1975 | -16.7 C (1.9 F) |
| 1976 | -20.0 C (-4.0 F) |
| 1977 | -20.6 C (-5.1 F) |
| 1978 | -17.2 C (1.0 F) |
| 1979 | -23.3 C (-9.9 F) |
| 1980 | -20.6 C (-5.1 F) |
| 1981 | -20.6 C (-5.1 F) |
| 1982 | -22.2 C (-8.0 F) |
| 1983 | -16.7 C (1.9 F) |
| 1984 | -21.1 C (-6.0 F) |
| 1985 | -20.0 C (-4.0 F) |
| 1986 | -16.7 C (1.9 F) |
| 1987 | -17.8 C (0.0 F) |
| 1988 | -19.4 C (-2.9 F) |
| 1989 | -16.1 C (3.0 F) |
| 1990 | -15.6 C (3.9 F) |
| 1991 | -15.6 C (3.9 F) |
| 1992 | -13.3 C (8.1 F) |
| 1993 | -17.8 C (0.0 F) |
| 1994 | -22.8 C (-9.0 F) |
| 1995 | -16.7 C (1.9 F) |
| 1996 | -17.8 C (0.0 F) |
| 1997 | -17.2 C (1.0 F) |
| 1998 | -11.1 C (12.0 F) |
| 1999 | -15.0 C (5.0 F) |
| 2000 | -17.2 C (1.0 F) |
| 2001 | -11.1 C (12.0 F) |
| 2002 | -10.6 C (12.9 F) |
| 2003 | -17.8 C (0.0 F) |
| 2004 | -19.4 C (-2.9 F) |
| 2005 | -18.9 C (-2.0 F) |
| 2006 | -12.1 C (10.2 F) |
| 2007 | -14.3 C (6.3 F) |
| 2008 | -13.2 C (8.2 F) |
| 2009 | -16.0 C (3.2 F) |
| 2010 | -13.2 C (8.2 F) |
| 2011 | -18.2 C (-0.8 F) |
| 2012 | -12.1 C (10.2 F) |
| 2013 | -13.8 C (7.2 F) |
| 2014 | -17.7 C (0.1 F) |
| 2015 | -20.5 C (-4.9 F) |
| 2016 | -19.3 C (-2.7 F) |
| 2017 | -14.3 C (6.3 F) |
| 2018 | -18.8 C (-1.8 F) |
| 2019 | -17.7 C (0.1 F) |
| 2020 | -12.7 C (9.1 F) |
| 2021 | -12.7 C (9.1 F) |
| 2022 | -16.0 C (3.2 F) |
| 2023 | -17.1 C (1.2 F) |
| 2024 | -14.3 C (6.3 F) |
| 2025 | -16.0 C (3.2 F) |
| 2026 | -17.2 C (1.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1946 | 88.4 mm (3.5 in) |
| 1947 | 57.7 mm (2.3 in) |
| 1948 | 61.0 mm (2.4 in) |
| 1949 | 37.3 mm (1.5 in) |
| 1950 | 83.6 mm (3.3 in) |
| 1951 | 96.3 mm (3.8 in) |
| 1952 | 96.5 mm (3.8 in) |
| 1953 | 89.4 mm (3.5 in) |
| 1954 | 125.2 mm (4.9 in) |
| 1955 | 121.2 mm (4.8 in) |
| 1956 | 94.0 mm (3.7 in) |
| 1957 | 48.8 mm (1.9 in) |
| 1958 | 67.8 mm (2.7 in) |
| 1959 | 55.9 mm (2.2 in) |
| 1960 | 81.0 mm (3.2 in) |
| 1961 | 69.9 mm (2.8 in) |
| 1962 | 75.2 mm (3.0 in) |
| 1963 | 70.1 mm (2.8 in) |
| 1964 | 43.4 mm (1.7 in) |
| 1965 | 69.6 mm (2.7 in) |
| 1966 | 106.2 mm (4.2 in) |
| 1967 | 70.6 mm (2.8 in) |
| 1968 | 121.9 mm (4.8 in) |
| 1969 | 68.6 mm (2.7 in) |
| 1970 | 67.6 mm (2.7 in) |
| 1971 | 103.9 mm (4.1 in) |
| 1972 | 137.2 mm (5.4 in) |
| 1973 | 70.4 mm (2.8 in) |
| 1974 | 127.3 mm (5.0 in) |
| 1975 | 128.5 mm (5.1 in) |
| 1976 | 68.6 mm (2.7 in) |
| 1977 | 125.7 mm (4.9 in) |
| 1978 | 56.4 mm (2.2 in) |
| 1979 | 83.6 mm (3.3 in) |
| 1980 | 80.0 mm (3.1 in) |
| 1981 | 73.7 mm (2.9 in) |
| 1982 | 75.4 mm (3.0 in) |
| 1983 | 129.3 mm (5.1 in) |
| 1984 | 113.3 mm (4.5 in) |
| 1985 | 96.8 mm (3.8 in) |
| 1986 | 66.5 mm (2.6 in) |
| 1987 | 75.9 mm (3.0 in) |
| 1988 | 50.0 mm (2.0 in) |
| 1989 | 106.7 mm (4.2 in) |
| 1990 | 74.7 mm (2.9 in) |
| 1991 | 75.4 mm (3.0 in) |
| 1992 | 73.2 mm (2.9 in) |
| 1993 | 61.5 mm (2.4 in) |
| 1994 | 50.5 mm (2.0 in) |
| 1995 | 96.0 mm (3.8 in) |
| 1996 | 100.8 mm (4.0 in) |
| 1997 | 74.4 mm (2.9 in) |
| 1998 | 63.2 mm (2.5 in) |
| 1999 | 119.6 mm (4.7 in) |
| 2000 | 76.5 mm (3.0 in) |
| 2001 | 72.1 mm (2.8 in) |
| 2002 | 71.4 mm (2.8 in) |
| 2003 | 46.7 mm (1.8 in) |
| 2004 | 150.6 mm (5.9 in) |
| 2005 | 110.2 mm (4.3 in) |
| 2006 | 87.9 mm (3.5 in) |
| 2007 | 173.2 mm (6.8 in) |
| 2008 | 112.3 mm (4.4 in) |
| 2009 | 69.8 mm (2.7 in) |
| 2010 | 77.2 mm (3.0 in) |
| 2011 | 131.6 mm (5.2 in) |
| 2012 | 50.3 mm (2.0 in) |
| 2013 | 80.0 mm (3.1 in) |
| 2014 | 89.9 mm (3.5 in) |
| 2015 | 78.0 mm (3.1 in) |
| 2016 | 46.2 mm (1.8 in) |
| 2017 | 95.2 mm (3.7 in) |
| 2018 | 112.0 mm (4.4 in) |
| 2019 | 65.0 mm (2.6 in) |
| 2020 | 65.5 mm (2.6 in) |
| 2021 | 153.9 mm (6.1 in) |
| 2022 | 87.4 mm (3.4 in) |
| 2023 | 104.1 mm (4.1 in) |
| 2024 | 76.7 mm (3.0 in) |
| 2025 | 85.9 mm (3.4 in) |
| 2026 | 95.3 mm (3.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1946 | 114.8 mm (4.5 in) |
| 1947 | 91.2 mm (3.6 in) |
| 1948 | 69.3 mm (2.7 in) |
| 1949 | 70.3 mm (2.8 in) |
| 1950 | 90.7 mm (3.6 in) |
| 1951 | 121.4 mm (4.8 in) |
| 1952 | 113.6 mm (4.5 in) |
| 1953 | 153.2 mm (6.0 in) |
| 1954 | 148.2 mm (5.8 in) |
| 1955 | 209.4 mm (8.2 in) |
| 1956 | 117.8 mm (4.6 in) |
| 1957 | 90.7 mm (3.6 in) |
| 1958 | 120.6 mm (4.7 in) |
| 1959 | 87.1 mm (3.4 in) |
| 1960 | 103.6 mm (4.1 in) |
| 1961 | 94.2 mm (3.7 in) |
| 1962 | 108.0 mm (4.3 in) |
| 1963 | 99.8 mm (3.9 in) |
| 1964 | 77.7 mm (3.1 in) |
| 1965 | 81.3 mm (3.2 in) |
| 1966 | 109.3 mm (4.3 in) |
| 1967 | 99.3 mm (3.9 in) |
| 1968 | 151.4 mm (6.0 in) |
| 1969 | 90.6 mm (3.6 in) |
| 1970 | 70.4 mm (2.8 in) |
| 1971 | 188.5 mm (7.4 in) |
| 1972 | 213.9 mm (8.4 in) |
| 1973 | 114.6 mm (4.5 in) |
| 1974 | 162.6 mm (6.4 in) |
| 1975 | 263.2 mm (10.4 in) |
| 1976 | 115.1 mm (4.5 in) |
| 1977 | 150.1 mm (5.9 in) |
| 1978 | 93.1 mm (3.7 in) |
| 1979 | 156.2 mm (6.1 in) |
| 1980 | 148.1 mm (5.8 in) |
| 1981 | 100.7 mm (4.0 in) |
| 1982 | 95.8 mm (3.8 in) |
| 1983 | 145.0 mm (5.7 in) |
| 1984 | 190.9 mm (7.5 in) |
| 1985 | 102.6 mm (4.0 in) |
| 1986 | 102.9 mm (4.1 in) |
| 1987 | 151.8 mm (6.0 in) |
| 1988 | 82.3 mm (3.2 in) |
| 1989 | 162.2 mm (6.4 in) |
| 1990 | 150.6 mm (5.9 in) |
| 1991 | 141.0 mm (5.6 in) |
| 1992 | 96.8 mm (3.8 in) |
| 1993 | 76.5 mm (3.0 in) |
| 1994 | 86.1 mm (3.4 in) |
| 1995 | 97.3 mm (3.8 in) |
| 1996 | 131.8 mm (5.2 in) |
| 1997 | 94.2 mm (3.7 in) |
| 1998 | 84.5 mm (3.3 in) |
| 1999 | 144.0 mm (5.7 in) |
| 2000 | 108.5 mm (4.3 in) |
| 2001 | 94.8 mm (3.7 in) |
| 2002 | 103.1 mm (4.1 in) |
| 2003 | 98.8 mm (3.9 in) |
| 2004 | 164.4 mm (6.5 in) |
| 2005 | 210.3 mm (8.3 in) |
| 2006 | 135.3 mm (5.3 in) |
| 2007 | 227.8 mm (9.0 in) |
| 2008 | 125.3 mm (4.9 in) |
| 2009 | 92.2 mm (3.6 in) |
| 2010 | 105.7 mm (4.2 in) |
| 2011 | 172.8 mm (6.8 in) |
| 2012 | 69.9 mm (2.8 in) |
| 2013 | 121.7 mm (4.8 in) |
| 2014 | 107.9 mm (4.2 in) |
| 2015 | 97.1 mm (3.8 in) |
| 2016 | 64.2 mm (2.5 in) |
| 2017 | 104.9 mm (4.1 in) |
| 2018 | 133.4 mm (5.3 in) |
| 2019 | 80.8 mm (3.2 in) |
| 2020 | 72.6 mm (2.9 in) |
| 2021 | 160.0 mm (6.3 in) |
| 2022 | 92.7 mm (3.6 in) |
| 2023 | 133.8 mm (5.3 in) |
| 2024 | 99.6 mm (3.9 in) |
| 2025 | 87.4 mm (3.4 in) |
| 2026 | 107.5 mm (4.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1946 | 16 days |
| 1947 | 24 days |
| 1948 | 18 days |
| 1949 | 31 days |
| 1950 | 17 days |
| 1951 | 12 days |
| 1952 | 17 days |
| 1953 | 18 days |
| 1954 | 21 days |
| 1955 | 14 days |
| 1956 | 15 days |
| 1957 | 31 days |
| 1958 | 20 days |
| 1959 | 19 days |
| 1960 | 12 days |
| 1961 | 16 days |
| 1962 | 16 days |
| 1963 | 28 days |
| 1964 | 32 days |
| 1965 | 29 days |
| 1966 | 18 days |
| 1967 | 16 days |
| 1968 | 26 days |
| 1969 | 13 days |
| 1970 | 16 days |
| 1971 | 18 days |
| 1972 | 10 days |
| 1973 | 22 days |
| 1974 | 15 days |
| 1975 | 14 days |
| 1976 | 20 days |
| 1977 | 20 days |
| 1978 | 20 days |
| 1979 | 15 days |
| 1980 | 24 days |
| 1981 | 24 days |
| 1982 | 16 days |
| 1983 | 23 days |
| 1984 | 16 days |
| 1985 | 19 days |
| 1986 | 24 days |
| 1987 | 17 days |
| 1988 | 29 days |
| 1989 | 16 days |
| 1990 | 12 days |
| 1991 | 23 days |
| 1992 | 11 days |
| 1993 | 15 days |
| 1994 | 18 days |
| 1995 | 38 days |
| 1996 | 12 days |
| 1997 | 15 days |
| 1998 | 14 days |
| 1999 | 19 days |
| 2000 | 21 days |
| 2001 | 28 days |
| 2002 | 13 days |
| 2003 | 26 days |
| 2004 | 25 days |
| 2005 | 19 days |
| 2006 | 19 days |
| 2007 | 19 days |
| 2008 | 15 days |
| 2009 | 17 days |
| 2010 | 28 days |
| 2011 | 17 days |
| 2012 | 17 days |
| 2013 | 24 days |
| 2014 | 18 days |
| 2015 | 23 days |
| 2016 | 15 days |
| 2017 | 18 days |
| 2018 | 13 days |
| 2019 | 11 days |
| 2020 | 16 days |
| 2021 | 16 days |
| 2022 | 20 days |
| 2023 | 17 days |
| 2024 | 29 days |
| 2025 | 17 days |
| 2026 | 13 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
66 years with a frostAcross 66 years with a frost, the median last spring frost at Westchester Co AP falls on 13 April and the median first autumn frost on 28 October, which leaves a median of 197 days between them.
In 1991 to 2024 the median growing season was 203 days. That is 10 days more than in 1953 to 1984.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1953 to 1984) | Recent period (1991 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 April | 14 April | 11 April | 3 days earlier | 0.0 days per decade |
| First autumn frost | 28 October | 25 October | 2 November | 8 days later | +1.2 days per decade |
| Growing days | 197 days | 193 days | 203 days | 10 days more | +1.2 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
79 years, 1947 to 2025A day with at least 81.4 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 176.5 mm (6.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 81.4 mm (3.2 in) | |
| 5 years | 106.8 mm (4.2 in) | |
| 10 years | 123.6 mm (4.9 in) | |
| 25 years | 144.9 mm (5.7 in) | |
| 50 years | 160.8 mm (6.3 in) | |
| 100 years | 176.5 mm (6.9 in) | Longer than the 79 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 79 years of values from 1947 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 173.2 mm (6.8 in) in 2007; 153.9 mm (6.1 in) in 2021; 150.6 mm (5.9 in) in 2004.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Westchester Co AP, at 1973. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.3 C (0.6 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1973 | -0.3 | -0.6 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2010 to 2024 against 1961 to 1990Over 2010 to 2024, Westchester Co AP had a mean temperature of 11.7 C (53.1 F) and 1,161.6 mm (45.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Chatsworth (United States, 155 km away), Tuckerton 2 NE (United States, 171 km away) and Indian Mills 2 W (United States, 167 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Chatsworth | United States | 155 km (96 mi) | 11.7 C (53.1 F) | 1,136.0 mm (44.7 in) | 0.45 |
| Tuckerton 2 NE | United States | 171 km (106 mi) | 12.0 C (53.6 F) | 1,160.3 mm (45.7 in) | 0.50 |
| Indian Mills 2 W | United States | 167 km (104 mi) | 11.7 C (53.0 F) | 1,135.7 mm (44.7 in) | 0.54 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).