Waterloo 2 NW Weather Records (USC00129271)
Record envelope, standing records and threshold days for Waterloo 2 NW (USC00129271), Indiana, United States, with 66 years of record.
Key Facts for Waterloo 2 NW
- Waterloo 2 NW (USC00129271) is a weather station in Indiana, United States at 41.49 latitude and -85.05 longitude, 287 m (940 ft) above sea level.
- The station reports from 1938 to 2003, 66 years of record.
- 1,464 records set at Waterloo 2 NW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Waterloo 2 NW set a daily record snowfall of 10.2 cm (4.0 in) on 23 February 2003.
About the Station
- Location: Indiana, United States, 41.49 latitude, -85.05 longitude.
- Elevation: 287 m (940 ft).
- Period of record: 1938 to 2003, 66 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.0 C (68.0 F) | -28.9 C (-20.0 F) | n/a | n/a |
| Feb | 20.6 C (69.1 F) | -29.4 C (-20.9 F) | n/a | n/a |
| Mar | 26.7 C (80.1 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Apr | 31.1 C (88.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| May | 33.9 C (93.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jul | 37.8 C (100.0 F) | 5.6 C (42.1 F) | n/a | n/a |
| Aug | 37.8 C (100.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -8.3 C (17.1 F) | n/a | n/a |
| Nov | 26.1 C (79.0 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Dec | 21.1 C (70.0 F) | -28.9 C (-20.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1939 | 2 |
| 1940 | 36 |
| 1941 | 35 |
| 1942 | 31 |
| 1943 | 29 |
| 1944 | 31 |
| 1945 | 52 |
| 1946 | 32 |
| 1947 | 37 |
| 1948 | 12 |
| 1949 | 31 |
| 1950 | 45 |
| 1951 | 40 |
| 1952 | 34 |
| 1953 | 40 |
| 1954 | 34 |
| 1955 | 26 |
| 1956 | 28 |
| 1957 | 38 |
| 1958 | 38 |
| 1959 | 29 |
| 1960 | 40 |
| 1961 | 28 |
| 1962 | 43 |
| 1963 | 54 |
| 1964 | 39 |
| 1965 | 38 |
| 1966 | 35 |
| 1967 | 37 |
| 1968 | 25 |
| 1969 | 25 |
| 1970 | 32 |
| 1971 | 25 |
| 1972 | 29 |
| 1973 | 25 |
| 1974 | 25 |
| 1975 | 29 |
| 1976 | 43 |
| 1977 | 53 |
| 1978 | 16 |
| 1979 | 38 |
| 1980 | 23 |
| 1981 | 20 |
| 1982 | 29 |
| 1983 | 33 |
All-Time Record Progression
14 new records| Date | Kind | Detail |
|---|---|---|
| 1972-09-14 | Record daily precipitation | Record daily precipitation 137.2 mm (5.4 in) |
| 1973-02-17 | Record low minimum temperature | Record low minimum temperature -29.4 C (-20.9 F) |
| 1977-01-17 | Record low maximum temperature | Record low maximum temperature -17.8 C (0.0 F) |
| 1978-01-26 | Record snow depth | Record snow depth 55.9 cm (22.0 in) |
| 1978-02-05 | Record snow depth | Record snow depth 58.4 cm (23.0 in) |
| 1978-02-13 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 1978-02-14 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
| 1978-03-03 | Record snow depth | Record snow depth 73.7 cm (29.0 in) |
| 1980-07-15 | Record high minimum temperature | Record high minimum temperature 26.1 C (79.0 F) |
| 1982-02-04 | Record snow depth | Record snow depth 76.2 cm (30.0 in) |
| 1982-02-05 | Record snow depth | Record snow depth 86.4 cm (34.0 in) |
| 1982-02-06 | Record snow depth | Record snow depth 88.9 cm (35.0 in) |
| 1982-02-09 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1982-11-02 | Record daily precipitation | Record daily precipitation 165.1 mm (6.5 in) |
Wettest Day of Each Month
Nov: 165.1 mm (6.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 47.8 mm (1.9 in) | 5 January 1993 |
| Feb | 56.4 mm (2.2 in) | 15 February 1949 |
| Mar | 64.3 mm (2.5 in) | 18 March 1977 |
| Apr | 80.0 mm (3.1 in) | 29 April 1956 |
| May | 81.8 mm (3.2 in) | 5 May 1965 |
| Jun | 85.6 mm (3.4 in) | 14 June 1946 |
| Jul | 81.3 mm (3.2 in) | 7 July 1954 |
| Aug | 119.4 mm (4.7 in) | 17 August 1997 |
| Sep | 137.2 mm (5.4 in) | 14 September 1972 |
| Oct | 56.4 mm (2.2 in) | 1 October 1945 |
| Nov | 165.1 mm (6.5 in) | 2 November 1982 |
| Dec | 67.3 mm (2.6 in) | 21 December 1967 |
Period of Record Coverage
1939 to 1983| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1939 | 21 | 6% | No |
| 1940 | 274 | 75% | No |
| 1941 | 362 | 99% | Yes |
| 1942 | 362 | 99% | Yes |
| 1943 | 355 | 97% | Yes |
| 1944 | 361 | 99% | Yes |
| 1945 | 345 | 95% | Yes |
| 1946 | 350 | 96% | Yes |
| 1947 | 357 | 98% | Yes |
| 1948 | 313 | 86% | No |
| 1949 | 362 | 99% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 356 | 98% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 353 | 97% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 358 | 98% | Yes |
| 1956 | 361 | 99% | Yes |
| 1957 | 358 | 98% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 364 | 99% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 334 | 91% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 357 | 98% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 360 | 99% | Yes |
| 1982 | 335 | 92% | Yes |
| 1983 | 311 | 85% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 23 February 2003 | Waterloo 2 NW, US | daily snowfall | 10.2 cm (4.0 in) | 1.3 cm (0.5 in) | 9 years | 11 of 100 (Routine) |
| 29 January 2003 | Waterloo 2 NW, US | daily snowfall | 5.3 cm (2.1 in) | 0.2 cm (0.1 in) | 32 years | 15 of 100 (Routine) |
| 25 December 2002 | Waterloo 2 NW, US | daily snowfall (Tie) | 12.7 cm (5.0 in) | tie | 57 years | 5 of 100 (Routine) |
| 3 December 2002 | Waterloo 2 NW, US | daily snowfall | 7.6 cm (3.0 in) | 2.5 cm (1.0 in) | 37 years | 22 of 100 (Routine) |
| 22 November 2002 | Waterloo 2 NW, US | daily snowfall | 3.0 cm (1.2 in) | 1.7 cm (0.7 in) | 56 years | 20 of 100 (Routine) |
| 22 November 2002 | Waterloo 2 NW, US | daily snow depth (Tie) | 2.5 cm (1.0 in) | tie | 37 years | 4 of 100 (Routine) |
| 30 October 2002 | Waterloo 2 NW, US | daily snowfall (Tie) | 0.5 cm (0.2 in) | tie | 48 years | 5 of 100 (Routine) |
| 19 October 2002 | Waterloo 2 NW, US | daily rain | 12.2 mm (0.5 in) | 4.6 mm (0.18 in) | 25 years | 17 of 100 (Routine) |
| 12 May 2002 | Waterloo 2 NW, US | daily rain | 47.5 mm (1.9 in) | 15.7 mm (0.6 in) | 45 years | 34 of 100 (Routine) |
| 3 April 2002 | Waterloo 2 NW, US | daily rain | 21.1 mm (0.8 in) | 3.3 mm (0.13 in) | 24 years | 16 of 100 (Routine) |
| 28 March 2002 | Waterloo 2 NW, US | daily snow depth | 22.9 cm (9.0 in) | 22.9 cm (9.0 in) | 51 years | 36 of 100 (Notable) |
| 27 March 2002 | Waterloo 2 NW, US | daily snowfall | 18.5 cm (7.3 in) | 16.0 cm (6.3 in) | 61 years | 62 of 100 (Major) |
| 27 March 2002 | Waterloo 2 NW, US | daily snow depth | 30.5 cm (12.0 in) | 28.0 cm (11.0 in) | 61 years | 43 of 100 (Notable) |
| 26 March 2002 | Waterloo 2 NW, US | daily snowfall | 5.6 cm (2.2 in) | 3.1 cm (1.2 in) | 36 years | 23 of 100 (Routine) |
| 26 March 2002 | Waterloo 2 NW, US | daily snow depth | 12.7 cm (5.0 in) | 2.5 cm (1.0 in) | 36 years | 18 of 100 (Routine) |
| 3 March 2002 | Waterloo 2 NW, US | daily rain | 21.1 mm (0.8 in) | 4.8 mm (0.19 in) | 3 years | 11 of 100 (Routine) |
| 25 November 2001 | Waterloo 2 NW, US | daily rain | 18.3 mm (0.7 in) | 1.5 mm (0.06 in) | 48 years | 20 of 100 (Routine) |
| 25 October 2001 | Waterloo 2 NW, US | daily rain | 21.3 mm (0.8 in) | 1.0 mm (0.04 in) | 62 years | 20 of 100 (Routine) |
| 12 October 2001 | Waterloo 2 NW, US | daily rain | 50.0 mm (2.0 in) | 23.3 mm (0.9 in) | 28 years | 37 of 100 (Notable) |
| 8 September 2001 | Waterloo 2 NW, US | daily rain | 11.7 mm (0.5 in) | 1.0 mm (0.04 in) | 59 years | 20 of 100 (Routine) |
Climate Trend
39 complete years, 1942 to 1982| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1942 | 9.7 C | +0.10 C |
| 1943 | 9.0 C | -0.60 C |
| 1944 | 10.0 C | +0.43 C |
| 1945 | 9.3 C | -0.28 C |
| 1946 | 10.9 C | +1.27 C |
| 1947 | 9.1 C | -0.45 C |
| 1949 | 10.2 C | +0.57 C |
| 1950 | 8.9 C | -0.65 C |
| 1951 | 9.2 C | -0.39 C |
| 1952 | 10.3 C | +0.68 C |
| 1953 | 11.2 C | +1.65 C |
| 1954 | 10.4 C | +0.84 C |
| 1955 | 10.2 C | +0.58 C |
| 1956 | 9.8 C | +0.25 C |
| 1957 | 9.5 C | -0.10 C |
| 1958 | 8.8 C | -0.83 C |
| 1959 | 10.2 C | +0.57 C |
| 1960 | 8.7 C | -0.90 C |
| 1961 | 9.3 C | -0.26 C |
| 1962 | 8.9 C | -0.65 C |
| 1963 | 8.6 C | -0.97 C |
| 1964 | 10.3 C | +0.70 C |
| 1965 | 9.6 C | +0.01 C |
| 1966 | 9.2 C | -0.34 C |
| 1967 | 9.3 C | -0.30 C |
| 1968 | 9.7 C | +0.10 C |
| 1969 | 9.2 C | -0.35 C |
| 1970 | 9.5 C | -0.05 C |
| 1971 | 10.0 C | +0.37 C |
| 1972 | 9.0 C | -0.57 C |
| 1973 | 10.7 C | +1.11 C |
| 1974 | 9.6 C | +0.03 C |
| 1975 | 10.1 C | +0.51 C |
| 1977 | 9.8 C | +0.23 C |
| 1978 | 8.8 C | -0.77 C |
| 1979 | 8.8 C | -0.81 C |
| 1980 | 9.0 C | -0.54 C |
| 1981 | 9.5 C | -0.11 C |
| 1982 | 9.6 C | 0.00 C |
The fitted trend in annual mean temperature here over 1942 to 1982 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.5 to 0.1) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.1 C (-0.3 to 0.1) per decade | -0.2 F (-0.5 to 0.1) per decade | 1942 to 1982 | 39 | Not clearly different from zero |
| Mean daily maximum | -0.02 C (-0.22 to 0.19) per decade | -0.03 F (-0.40 to 0.35) per decade | 1942 to 1982 | 39 | Not clearly different from zero |
| Mean daily minimum | -0.19 C (-0.36 to -0.01) per decade | -0.34 F (-0.66 to -0.02) per decade | 1942 to 1982 | 39 | Fall |
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
1938 to 2003| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 1953 | 35.0 C (95.0 F) | 45 |
| Coldest night (TNn) | -29.4 C (-20.9 F) | 1973 | -23.9 C (-11.0 F) | 45 |
| Wettest day (Rx1day) | 165.1 mm (6.5 in) | 1982 | 53.2 mm (2.1 in) | 56 |
| Wettest five days (Rx5day) | 257.6 mm (10.1 in) | 1982 | 83.2 mm (3.3 in) | 56 |
| Longest dry spell (CDD) | 30 days | 1977 | 18 days | 56 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1938 | n/a |
| 1939 | 12.2 C (54.0 F) |
| 1940 | 37.8 C (100.0 F) |
| 1941 | 37.2 C (99.0 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 33.3 C (91.9 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 36.7 C (98.1 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 33.9 C (93.0 F) |
| 1950 | 31.7 C (89.1 F) |
| 1951 | 33.3 C (91.9 F) |
| 1952 | 37.2 C (99.0 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 34.4 C (93.9 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 34.4 C (93.9 F) |
| 1958 | 32.2 C (90.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 33.3 C (91.9 F) |
| 1962 | 36.7 C (98.1 F) |
| 1963 | 34.4 C (93.9 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 35.6 C (96.1 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 33.9 C (93.0 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 32.2 C (90.0 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 32.2 C (90.0 F) |
| 1983 | 37.2 C (99.0 F) |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1938 | n/a |
| 1939 | -10.0 C (14.0 F) |
| 1940 | -25.6 C (-14.1 F) |
| 1941 | -15.6 C (3.9 F) |
| 1942 | -23.9 C (-11.0 F) |
| 1943 | -25.6 C (-14.1 F) |
| 1944 | -22.2 C (-8.0 F) |
| 1945 | -22.2 C (-8.0 F) |
| 1946 | -19.4 C (-2.9 F) |
| 1947 | -18.9 C (-2.0 F) |
| 1948 | -21.1 C (-6.0 F) |
| 1949 | -19.4 C (-2.9 F) |
| 1950 | -23.9 C (-11.0 F) |
| 1951 | -25.6 C (-14.1 F) |
| 1952 | -17.2 C (1.0 F) |
| 1953 | -20.6 C (-5.1 F) |
| 1954 | -20.6 C (-5.1 F) |
| 1955 | -23.3 C (-9.9 F) |
| 1956 | -20.0 C (-4.0 F) |
| 1957 | -23.3 C (-9.9 F) |
| 1958 | -25.0 C (-13.0 F) |
| 1959 | -22.8 C (-9.0 F) |
| 1960 | -28.9 C (-20.0 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -24.4 C (-11.9 F) |
| 1963 | -28.3 C (-18.9 F) |
| 1964 | -21.1 C (-6.0 F) |
| 1965 | -22.2 C (-8.0 F) |
| 1966 | -22.2 C (-8.0 F) |
| 1967 | -26.1 C (-15.0 F) |
| 1968 | -26.7 C (-16.1 F) |
| 1969 | -20.6 C (-5.1 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -24.4 C (-11.9 F) |
| 1972 | -28.9 C (-20.0 F) |
| 1973 | -29.4 C (-20.9 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -25.6 C (-14.1 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -24.4 C (-11.9 F) |
| 1979 | -26.1 C (-15.0 F) |
| 1980 | -22.2 C (-8.0 F) |
| 1981 | -28.9 C (-20.0 F) |
| 1982 | -26.1 C (-15.0 F) |
| 1983 | -17.8 C (0.0 F) |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | n/a |
| 2002 | n/a |
| 2003 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1938 | 54.1 mm (2.1 in) |
| 1939 | 36.3 mm (1.4 in) |
| 1940 | 53.1 mm (2.1 in) |
| 1941 | 31.8 mm (1.3 in) |
| 1942 | 61.7 mm (2.4 in) |
| 1943 | 70.9 mm (2.8 in) |
| 1944 | 76.2 mm (3.0 in) |
| 1945 | 56.4 mm (2.2 in) |
| 1946 | 85.6 mm (3.4 in) |
| 1947 | 52.3 mm (2.1 in) |
| 1948 | 43.2 mm (1.7 in) |
| 1949 | 56.4 mm (2.2 in) |
| 1950 | 52.6 mm (2.1 in) |
| 1951 | 75.4 mm (3.0 in) |
| 1952 | 35.6 mm (1.4 in) |
| 1953 | 42.7 mm (1.7 in) |
| 1954 | 81.3 mm (3.2 in) |
| 1955 | 52.8 mm (2.1 in) |
| 1956 | 80.0 mm (3.1 in) |
| 1957 | 56.1 mm (2.2 in) |
| 1958 | 51.3 mm (2.0 in) |
| 1959 | 45.7 mm (1.8 in) |
| 1960 | 45.7 mm (1.8 in) |
| 1961 | 63.0 mm (2.5 in) |
| 1962 | 42.7 mm (1.7 in) |
| 1963 | 73.7 mm (2.9 in) |
| 1964 | 28.4 mm (1.1 in) |
| 1965 | 81.8 mm (3.2 in) |
| 1966 | 65.3 mm (2.6 in) |
| 1967 | 67.3 mm (2.6 in) |
| 1968 | 47.5 mm (1.9 in) |
| 1969 | 35.1 mm (1.4 in) |
| 1970 | 36.8 mm (1.4 in) |
| 1971 | 40.1 mm (1.6 in) |
| 1972 | 137.2 mm (5.4 in) |
| 1973 | 36.6 mm (1.4 in) |
| 1974 | 41.1 mm (1.6 in) |
| 1975 | 53.8 mm (2.1 in) |
| 1976 | 66.8 mm (2.6 in) |
| 1977 | 64.3 mm (2.5 in) |
| 1978 | 44.5 mm (1.8 in) |
| 1979 | 40.1 mm (1.6 in) |
| 1980 | 55.9 mm (2.2 in) |
| 1981 | 69.9 mm (2.8 in) |
| 1982 | 165.1 mm (6.5 in) |
| 1983 | 52.1 mm (2.1 in) |
| 1992 | 53.3 mm (2.1 in) |
| 1993 | 47.8 mm (1.9 in) |
| 1994 | 32.3 mm (1.3 in) |
| 1997 | 119.4 mm (4.7 in) |
| 1998 | 55.9 mm (2.2 in) |
| 1999 | 46.2 mm (1.8 in) |
| 2000 | 70.9 mm (2.8 in) |
| 2001 | 94.0 mm (3.7 in) |
| 2002 | 48.8 mm (1.9 in) |
| 2003 | 11.7 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1938 | 120.9 mm (4.8 in) |
| 1939 | 66.0 mm (2.6 in) |
| 1940 | 74.8 mm (2.9 in) |
| 1941 | 89.9 mm (3.5 in) |
| 1942 | 106.6 mm (4.2 in) |
| 1943 | 152.9 mm (6.0 in) |
| 1944 | 75.5 mm (3.0 in) |
| 1945 | 118.7 mm (4.7 in) |
| 1946 | 136.7 mm (5.4 in) |
| 1947 | 72.4 mm (2.9 in) |
| 1948 | 55.6 mm (2.2 in) |
| 1949 | 98.1 mm (3.9 in) |
| 1950 | 132.1 mm (5.2 in) |
| 1951 | 98.5 mm (3.9 in) |
| 1952 | 72.4 mm (2.9 in) |
| 1953 | 82.3 mm (3.2 in) |
| 1954 | 110.0 mm (4.3 in) |
| 1955 | 86.9 mm (3.4 in) |
| 1956 | 100.1 mm (3.9 in) |
| 1957 | 66.8 mm (2.6 in) |
| 1958 | 85.6 mm (3.4 in) |
| 1959 | 75.9 mm (3.0 in) |
| 1960 | 84.1 mm (3.3 in) |
| 1961 | 67.9 mm (2.7 in) |
| 1962 | 58.4 mm (2.3 in) |
| 1963 | 86.5 mm (3.4 in) |
| 1964 | 49.9 mm (2.0 in) |
| 1965 | 85.1 mm (3.4 in) |
| 1966 | 116.3 mm (4.6 in) |
| 1967 | 72.6 mm (2.9 in) |
| 1968 | 116.1 mm (4.6 in) |
| 1969 | 70.6 mm (2.8 in) |
| 1970 | 72.0 mm (2.8 in) |
| 1971 | 58.4 mm (2.3 in) |
| 1972 | 170.7 mm (6.7 in) |
| 1973 | 54.1 mm (2.1 in) |
| 1974 | 69.1 mm (2.7 in) |
| 1975 | 72.3 mm (2.8 in) |
| 1976 | 79.5 mm (3.1 in) |
| 1977 | 79.6 mm (3.1 in) |
| 1978 | 60.2 mm (2.4 in) |
| 1979 | 79.2 mm (3.1 in) |
| 1980 | 84.3 mm (3.3 in) |
| 1981 | 128.5 mm (5.1 in) |
| 1982 | 257.6 mm (10.1 in) |
| 1983 | 88.1 mm (3.5 in) |
| 1992 | 120.2 mm (4.7 in) |
| 1993 | 81.8 mm (3.2 in) |
| 1994 | 57.0 mm (2.2 in) |
| 1997 | 149.9 mm (5.9 in) |
| 1998 | 124.5 mm (4.9 in) |
| 1999 | 66.3 mm (2.6 in) |
| 2000 | 87.2 mm (3.4 in) |
| 2001 | 105.2 mm (4.1 in) |
| 2002 | 76.3 mm (3.0 in) |
| 2003 | 18.5 mm (0.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1938 | 16 days |
| 1939 | 24 days |
| 1940 | 21 days |
| 1941 | 15 days |
| 1942 | 21 days |
| 1943 | 25 days |
| 1944 | 18 days |
| 1945 | 12 days |
| 1946 | 24 days |
| 1947 | 25 days |
| 1948 | 20 days |
| 1949 | 21 days |
| 1950 | 16 days |
| 1951 | 17 days |
| 1952 | 25 days |
| 1953 | 26 days |
| 1954 | 18 days |
| 1955 | 18 days |
| 1956 | 27 days |
| 1957 | 24 days |
| 1958 | 29 days |
| 1959 | 19 days |
| 1960 | 12 days |
| 1961 | 18 days |
| 1962 | 18 days |
| 1963 | 19 days |
| 1964 | 17 days |
| 1965 | 14 days |
| 1966 | 15 days |
| 1967 | 19 days |
| 1968 | 25 days |
| 1969 | 19 days |
| 1970 | 20 days |
| 1971 | 16 days |
| 1972 | 13 days |
| 1973 | 14 days |
| 1974 | 20 days |
| 1975 | 18 days |
| 1976 | 26 days |
| 1977 | 30 days |
| 1978 | 15 days |
| 1979 | 16 days |
| 1980 | 12 days |
| 1981 | 28 days |
| 1982 | 11 days |
| 1983 | 24 days |
| 1992 | 10 days |
| 1993 | 18 days |
| 1994 | 13 days |
| 1997 | 14 days |
| 1998 | 18 days |
| 1999 | 27 days |
| 2000 | 21 days |
| 2001 | 14 days |
| 2002 | 22 days |
| 2003 | 7 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
39 years with a frostAcross 39 years with a frost, the median last spring frost at Waterloo 2 NW falls on 8 May and the median first autumn frost on 3 October, which leaves a median of 149 days between them.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1952 to 1982) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 May | n/a | 8 May | n/a | -0.7 days per decade |
| First autumn frost | 3 October | n/a | 4 October | n/a | +0.3 days per decade |
| Growing days | 149 days | n/a | 149 days | n/a | +1.0 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
48 years, 1941 to 2002A day with at least 54.9 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 161.6 mm (6.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 54.9 mm (2.2 in) | |
| 5 years | 75.8 mm (3.0 in) | |
| 10 years | 92.2 mm (3.6 in) | |
| 25 years | 116.6 mm (4.6 in) | |
| 50 years | 137.7 mm (5.4 in) | Longer than the 48 years of record |
| 100 years | 161.6 mm (6.4 in) | Longer than the 48 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, 48 years of values from 1941 to 2002.
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: 165.1 mm (6.5 in) in 1982; 137.2 mm (5.4 in) in 1972; 119.4 mm (4.7 in) in 1997.
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).