Waverly Weather Records (USC00138771)
Record envelope, standing records and threshold days for Waverly (USC00138771), Iowa, United States, with 51 years of record.
Key Facts for Waverly
- Waverly (USC00138771) is a weather station in Iowa, United States at 42.73 latitude and -92.47 longitude, 287 m (942 ft) above sea level.
- The station reports from 1896 to 1946, 51 years of record.
- 1,464 records set at Waverly still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Waverly tied a daily record low minimum temperature of 8.3 C (46.9 F) on 12 August 1946.
About the Station
- Location: Iowa, United States, 42.73 latitude, -92.47 longitude.
- Elevation: 287 m (942 ft).
- Period of record: 1896 to 1946, 51 years.
- Eligible elements: tmax, tmin, prcp, snow.
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 | 15.0 C (59.0 F) | -36.7 C (-34.1 F) | n/a | n/a |
| Feb | 17.2 C (63.0 F) | -36.1 C (-33.0 F) | n/a | n/a |
| Mar | 28.9 C (84.0 F) | -27.2 C (-17.0 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -15.0 C (5.0 F) | n/a | n/a |
| May | 41.1 C (106.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jun | 41.1 C (106.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 42.8 C (109.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Aug | 40.6 C (105.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Oct | 32.8 C (91.0 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Nov | 27.2 C (81.0 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -32.8 C (-27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1896 | 42 |
| 1897 | 43 |
| 1898 | 26 |
| 1899 | 38 |
| 1900 | 26 |
| 1901 | 32 |
| 1902 | 28 |
| 1903 | 31 |
| 1904 | 22 |
| 1905 | 29 |
| 1906 | 14 |
| 1907 | 23 |
| 1908 | 19 |
| 1909 | 40 |
| 1910 | 35 |
| 1911 | 40 |
| 1912 | 26 |
| 1913 | 21 |
| 1914 | 23 |
| 1915 | 30 |
| 1916 | 37 |
| 1917 | 37 |
| 1918 | 37 |
| 1919 | 19 |
| 1920 | 35 |
| 1921 | 36 |
| 1922 | 13 |
| 1923 | 12 |
| 1924 | 31 |
| 1925 | 40 |
| 1926 | 22 |
| 1927 | 22 |
| 1928 | 27 |
| 1929 | 21 |
| 1930 | 51 |
| 1931 | 41 |
| 1932 | 24 |
| 1933 | 30 |
| 1934 | 41 |
| 1935 | 19 |
| 1936 | 62 |
| 1937 | 22 |
| 1938 | 19 |
| 1939 | 28 |
| 1940 | 23 |
| 1941 | 16 |
| 1942 | 25 |
| 1943 | 21 |
| 1944 | 20 |
| 1945 | 29 |
| 1946 | 16 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1936-07-05 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1936-07-13 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1941-09-08 | Record daily precipitation | Record daily precipitation 133.9 mm (5.3 in) |
Wettest Day of Each Month
Sep: 133.9 mm (5.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 43.4 mm (1.7 in) | 5 January 1946 |
| Feb | 37.3 mm (1.5 in) | 13 February 1911 |
| Mar | 45.7 mm (1.8 in) | 29 March 1933 |
| Apr | 51.6 mm (2.0 in) | 29 April 1909 |
| May | 77.5 mm (3.1 in) | 3 May 1902 |
| Jun | 83.3 mm (3.3 in) | 10 June 1900 |
| Jul | 73.4 mm (2.9 in) | 6 July 1922 |
| Aug | 80.8 mm (3.2 in) | 1 August 1931 |
| Sep | 133.9 mm (5.3 in) | 8 September 1941 |
| Oct | 50.8 mm (2.0 in) | 17 October 1898 |
| Nov | 83.3 mm (3.3 in) | 4 November 1938 |
| Dec | 42.2 mm (1.7 in) | 11 December 1899 |
Period of Record Coverage
1896 to 1946| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1896 | 329 | 90% | No |
| 1897 | 363 | 99% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 364 | 100% | Yes |
| 1900 | 362 | 99% | Yes |
| 1901 | 355 | 97% | Yes |
| 1902 | 356 | 98% | Yes |
| 1903 | 359 | 98% | Yes |
| 1904 | 362 | 99% | Yes |
| 1905 | 364 | 100% | Yes |
| 1906 | 332 | 91% | Yes |
| 1907 | 363 | 99% | Yes |
| 1908 | 354 | 97% | Yes |
| 1909 | 358 | 98% | Yes |
| 1910 | 363 | 99% | Yes |
| 1911 | 347 | 95% | Yes |
| 1912 | 329 | 90% | No |
| 1913 | 164 | 45% | No |
| 1914 | 311 | 85% | No |
| 1915 | 363 | 99% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 363 | 99% | Yes |
| 1920 | 364 | 99% | Yes |
| 1921 | 355 | 97% | Yes |
| 1922 | 338 | 93% | Yes |
| 1923 | 346 | 95% | Yes |
| 1924 | 353 | 96% | Yes |
| 1925 | 320 | 88% | No |
| 1926 | 292 | 80% | No |
| 1927 | 349 | 96% | Yes |
| 1928 | 329 | 90% | No |
| 1929 | 331 | 91% | Yes |
| 1930 | 332 | 91% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 361 | 99% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 270 | 74% | No |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 241 | 66% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 August 1946 | Waverly, US | daily low min (Tie) | 8.3 C (46.9 F) | tie | 15 years | 2 of 100 (Routine) |
| 10 July 1946 | Waverly, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 9 years | 8 of 100 (Routine) |
| 20 June 1946 | Waverly, US | daily low max | 16.1 C (61.0 F) | 2.2 C (4.0 F) | 44 years | 22 of 100 (Routine) |
| 19 June 1946 | Waverly, US | daily low max | 14.4 C (57.9 F) | 2.3 C (4.1 F) | 31 years | 18 of 100 (Routine) |
| 17 June 1946 | Waverly, US | daily high min (Tie) | 22.8 C (73.0 F) | tie | 48 years | 4 of 100 (Routine) |
| 11 June 1946 | Waverly, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 25 years | 3 of 100 (Routine) |
| 7 June 1946 | Waverly, US | daily high min | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 20 years | 13 of 100 (Routine) |
| 3 June 1946 | Waverly, US | daily low min | 2.2 C (36.0 F) | 0.6 C (1.1 F) | 0 years | 6 of 100 (Routine) |
| 11 May 1946 | Waverly, US | daily low max | 11.7 C (53.1 F) | 0.5 C (0.9 F) | 19 years | 10 of 100 (Routine) |
| 19 April 1946 | Waverly, US | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 31 years | 15 of 100 (Routine) |
| 1 April 1946 | Waverly, US | daily high max | 25.0 C (77.0 F) | 2.2 C (4.0 F) | 40 years | 20 of 100 (Routine) |
| 1 April 1946 | Waverly, US | daily high min | 11.7 C (53.1 F) | 1.7 C (3.1 F) | 0 years | 8 of 100 (Routine) |
| 22 March 1946 | Waverly, US | daily high min | 6.7 C (44.1 F) | 0.6 C (1.1 F) | 8 years | 8 of 100 (Routine) |
| 17 March 1946 | Waverly, US | daily high min | 6.7 C (44.1 F) | 1.7 C (3.1 F) | 24 years | 14 of 100 (Routine) |
| 16 March 1946 | Waverly, US | daily high min | 7.2 C (45.0 F) | 2.2 C (4.0 F) | 19 years | 13 of 100 (Routine) |
| 13 March 1946 | Waverly, US | daily high min | 8.3 C (46.9 F) | 1.6 C (2.9 F) | 12 years | 10 of 100 (Routine) |
| 8 March 1946 | Waverly, US | daily snowfall | 12.7 cm (5.0 in) | 1.8 cm (0.7 in) | 36 years | 20 of 100 (Routine) |
| 6 March 1946 | Waverly, US | daily high min (Tie) | 1.1 C (34.0 F) | tie | 47 years | 4 of 100 (Routine) |
| 5 March 1946 | Waverly, US | daily rain | 19.1 mm (0.8 in) | 3.1 mm (0.12 in) | 45 years | 20 of 100 (Routine) |
| 3 March 1946 | Waverly, US | daily high max | 19.4 C (66.9 F) | 5.5 C (9.9 F) | 23 years | 18 of 100 (Routine) |
Climate Trend
36 complete years, 1897 to 1945| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1897 | 7.9 C | -0.45 C |
| 1898 | 8.3 C | -0.02 C |
| 1899 | 8.2 C | -0.14 C |
| 1900 | 9.1 C | +0.77 C |
| 1901 | 8.9 C | +0.57 C |
| 1902 | 8.1 C | -0.25 C |
| 1903 | 7.7 C | -0.68 C |
| 1904 | 7.0 C | -1.34 C |
| 1905 | 7.4 C | -1.00 C |
| 1907 | 7.8 C | -0.56 C |
| 1908 | 8.9 C | +0.53 C |
| 1909 | 7.8 C | -0.57 C |
| 1915 | 7.9 C | -0.41 C |
| 1916 | 8.2 C | -0.15 C |
| 1917 | 6.6 C | -1.77 C |
| 1918 | 8.7 C | +0.32 C |
| 1919 | 8.3 C | -0.10 C |
| 1920 | 8.2 C | -0.12 C |
| 1921 | 10.5 C | +2.15 C |
| 1923 | 8.5 C | +0.16 C |
| 1924 | 7.0 C | -1.34 C |
| 1927 | 8.2 C | -0.13 C |
| 1931 | 11.1 C | +2.75 C |
| 1932 | 8.2 C | -0.19 C |
| 1933 | 9.5 C | +1.16 C |
| 1934 | 9.7 C | +1.37 C |
| 1936 | 7.8 C | -0.56 C |
| 1937 | 7.3 C | -1.03 C |
| 1938 | 9.1 C | +0.77 C |
| 1939 | 9.6 C | +1.25 C |
| 1940 | 7.8 C | -0.56 C |
| 1941 | 9.5 C | +1.17 C |
| 1942 | 8.0 C | -0.38 C |
| 1943 | 7.6 C | -0.79 C |
| 1944 | 8.7 C | +0.33 C |
| 1945 | 7.5 C | -0.88 C |
The fitted trend in annual mean temperature here over 1897 to 1945 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.2 to 0.6) per decade. The slope is a straight line fitted to 36 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 (-0.1 to 0.3) per decade | 0.2 F (-0.2 to 0.6) per decade | 1897 to 1945 | 36 | Not clearly different from zero |
| Mean daily maximum | 0.19 C (-0.04 to 0.42) per decade | 0.3 F (-0.1 to 0.8) per decade | 1897 to 1945 | 36 | Not clearly different from zero |
| Mean daily minimum | 0.03 C (-0.20 to 0.26) per decade | 0.1 F (-0.4 to 0.5) per decade | 1897 to 1945 | 36 | Not clearly different from zero |
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
1896 to 1946| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1936 | 36.1 C (97.0 F) | 51 |
| Coldest night (TNn) | -36.7 C (-34.1 F) | 1912 | -28.9 C (-20.0 F) | 51 |
| Wettest day (Rx1day) | 133.9 mm (5.3 in) | 1941 | 53.3 mm (2.1 in) | 51 |
| Wettest five days (Rx5day) | 143.5 mm (5.6 in) | 1914 | 87.9 mm (3.5 in) | 51 |
| Longest dry spell (CDD) | 41 days | 1916 | 24 days | 51 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1896 | 35.6 C (96.1 F) |
| 1897 | 36.1 C (97.0 F) |
| 1898 | 35.6 C (96.1 F) |
| 1899 | 33.9 C (93.0 F) |
| 1900 | 34.4 C (93.9 F) |
| 1901 | 41.1 C (106.0 F) |
| 1902 | 32.8 C (91.0 F) |
| 1903 | 32.8 C (91.0 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 34.4 C (93.9 F) |
| 1906 | 33.9 C (93.0 F) |
| 1907 | 33.3 C (91.9 F) |
| 1908 | 33.9 C (93.0 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 40.6 C (105.1 F) |
| 1912 | 37.2 C (99.0 F) |
| 1913 | 38.9 C (102.0 F) |
| 1914 | 36.1 C (97.0 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 40.0 C (104.0 F) |
| 1917 | 38.3 C (100.9 F) |
| 1918 | 38.9 C (102.0 F) |
| 1919 | 37.8 C (100.0 F) |
| 1920 | 35.6 C (96.1 F) |
| 1921 | 37.2 C (99.0 F) |
| 1922 | 37.2 C (99.0 F) |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 37.8 C (100.0 F) |
| 1926 | 36.1 C (97.0 F) |
| 1927 | 35.6 C (96.1 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 34.4 C (93.9 F) |
| 1930 | 39.4 C (102.9 F) |
| 1931 | 39.4 C (102.9 F) |
| 1932 | 36.1 C (97.0 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 41.1 C (106.0 F) |
| 1935 | 37.2 C (99.0 F) |
| 1936 | 42.8 C (109.0 F) |
| 1937 | 40.0 C (104.0 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 38.3 C (100.9 F) |
| 1940 | 40.6 C (105.1 F) |
| 1941 | 37.8 C (100.0 F) |
| 1942 | 34.4 C (93.9 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 36.1 C (97.0 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 36.7 C (98.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1896 | -22.2 C (-8.0 F) |
| 1897 | -31.7 C (-25.1 F) |
| 1898 | -26.7 C (-16.1 F) |
| 1899 | -31.1 C (-24.0 F) |
| 1900 | -26.1 C (-15.0 F) |
| 1901 | -27.2 C (-17.0 F) |
| 1902 | -31.7 C (-25.1 F) |
| 1903 | -27.2 C (-17.0 F) |
| 1904 | -32.8 C (-27.0 F) |
| 1905 | -33.3 C (-27.9 F) |
| 1906 | -27.8 C (-18.0 F) |
| 1907 | -27.8 C (-18.0 F) |
| 1908 | -23.9 C (-11.0 F) |
| 1909 | -29.4 C (-20.9 F) |
| 1910 | -33.9 C (-29.0 F) |
| 1911 | -27.8 C (-18.0 F) |
| 1912 | -36.7 C (-34.1 F) |
| 1913 | -28.3 C (-18.9 F) |
| 1914 | -32.8 C (-27.0 F) |
| 1915 | -33.9 C (-29.0 F) |
| 1916 | -32.2 C (-26.0 F) |
| 1917 | -31.7 C (-25.1 F) |
| 1918 | -36.1 C (-33.0 F) |
| 1919 | -33.3 C (-27.9 F) |
| 1920 | -27.8 C (-18.0 F) |
| 1921 | -23.3 C (-9.9 F) |
| 1922 | -28.9 C (-20.0 F) |
| 1923 | -27.8 C (-18.0 F) |
| 1924 | -33.3 C (-27.9 F) |
| 1925 | -31.7 C (-25.1 F) |
| 1926 | -26.7 C (-16.1 F) |
| 1927 | -26.7 C (-16.1 F) |
| 1928 | -20.6 C (-5.1 F) |
| 1929 | -34.4 C (-29.9 F) |
| 1930 | -36.7 C (-34.1 F) |
| 1931 | -23.9 C (-11.0 F) |
| 1932 | -31.1 C (-24.0 F) |
| 1933 | -32.8 C (-27.0 F) |
| 1934 | -26.1 C (-15.0 F) |
| 1935 | -31.1 C (-24.0 F) |
| 1936 | -35.0 C (-31.0 F) |
| 1937 | -28.9 C (-20.0 F) |
| 1938 | -27.2 C (-17.0 F) |
| 1939 | -22.8 C (-9.0 F) |
| 1940 | -30.6 C (-23.1 F) |
| 1941 | -25.6 C (-14.1 F) |
| 1942 | -33.3 C (-27.9 F) |
| 1943 | -31.1 C (-24.0 F) |
| 1944 | -28.9 C (-20.0 F) |
| 1945 | -28.9 C (-20.0 F) |
| 1946 | -27.2 C (-17.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1896 | 70.6 mm (2.8 in) |
| 1897 | 50.8 mm (2.0 in) |
| 1898 | 50.8 mm (2.0 in) |
| 1899 | 62.2 mm (2.4 in) |
| 1900 | 83.3 mm (3.3 in) |
| 1901 | 39.4 mm (1.6 in) |
| 1902 | 77.5 mm (3.1 in) |
| 1903 | 72.9 mm (2.9 in) |
| 1904 | 44.2 mm (1.7 in) |
| 1905 | 46.7 mm (1.8 in) |
| 1906 | 44.5 mm (1.8 in) |
| 1907 | 42.9 mm (1.7 in) |
| 1908 | 51.1 mm (2.0 in) |
| 1909 | 59.7 mm (2.4 in) |
| 1910 | 36.8 mm (1.4 in) |
| 1911 | 48.3 mm (1.9 in) |
| 1912 | 57.2 mm (2.3 in) |
| 1913 | 40.6 mm (1.6 in) |
| 1914 | 71.1 mm (2.8 in) |
| 1915 | 49.5 mm (1.9 in) |
| 1916 | 39.4 mm (1.6 in) |
| 1917 | 55.9 mm (2.2 in) |
| 1918 | 43.7 mm (1.7 in) |
| 1919 | 45.7 mm (1.8 in) |
| 1920 | 69.9 mm (2.8 in) |
| 1921 | 50.8 mm (2.0 in) |
| 1922 | 73.4 mm (2.9 in) |
| 1923 | 64.5 mm (2.5 in) |
| 1924 | 48.3 mm (1.9 in) |
| 1925 | 72.4 mm (2.9 in) |
| 1926 | 52.3 mm (2.1 in) |
| 1927 | 46.7 mm (1.8 in) |
| 1928 | 57.4 mm (2.3 in) |
| 1929 | 76.2 mm (3.0 in) |
| 1930 | 69.3 mm (2.7 in) |
| 1931 | 80.8 mm (3.2 in) |
| 1932 | 51.8 mm (2.0 in) |
| 1933 | 53.3 mm (2.1 in) |
| 1934 | 49.5 mm (1.9 in) |
| 1935 | 44.7 mm (1.8 in) |
| 1936 | 62.7 mm (2.5 in) |
| 1937 | 60.2 mm (2.4 in) |
| 1938 | 83.3 mm (3.3 in) |
| 1939 | 39.6 mm (1.6 in) |
| 1940 | 57.2 mm (2.3 in) |
| 1941 | 133.9 mm (5.3 in) |
| 1942 | 68.1 mm (2.7 in) |
| 1943 | 61.0 mm (2.4 in) |
| 1944 | 33.3 mm (1.3 in) |
| 1945 | 61.0 mm (2.4 in) |
| 1946 | 43.4 mm (1.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1896 | 93.8 mm (3.7 in) |
| 1897 | 54.1 mm (2.1 in) |
| 1898 | 87.9 mm (3.5 in) |
| 1899 | 92.1 mm (3.6 in) |
| 1900 | 94.2 mm (3.7 in) |
| 1901 | 62.7 mm (2.5 in) |
| 1902 | 128.2 mm (5.0 in) |
| 1903 | 126.0 mm (5.0 in) |
| 1904 | 76.2 mm (3.0 in) |
| 1905 | 91.0 mm (3.6 in) |
| 1906 | 47.6 mm (1.9 in) |
| 1907 | 97.6 mm (3.8 in) |
| 1908 | 72.9 mm (2.9 in) |
| 1909 | 95.7 mm (3.8 in) |
| 1910 | 52.4 mm (2.1 in) |
| 1911 | 86.3 mm (3.4 in) |
| 1912 | 72.5 mm (2.9 in) |
| 1913 | 53.3 mm (2.1 in) |
| 1914 | 143.5 mm (5.6 in) |
| 1915 | 90.1 mm (3.5 in) |
| 1916 | 56.2 mm (2.2 in) |
| 1917 | 89.1 mm (3.5 in) |
| 1918 | 83.5 mm (3.3 in) |
| 1919 | 81.4 mm (3.2 in) |
| 1920 | 80.6 mm (3.2 in) |
| 1921 | 106.7 mm (4.2 in) |
| 1922 | 133.9 mm (5.3 in) |
| 1923 | 85.9 mm (3.4 in) |
| 1924 | 92.7 mm (3.6 in) |
| 1925 | 98.6 mm (3.9 in) |
| 1926 | 65.7 mm (2.6 in) |
| 1927 | 64.7 mm (2.5 in) |
| 1928 | 104.4 mm (4.1 in) |
| 1929 | 87.6 mm (3.4 in) |
| 1930 | 88.9 mm (3.5 in) |
| 1931 | 106.4 mm (4.2 in) |
| 1932 | 105.2 mm (4.1 in) |
| 1933 | 105.4 mm (4.1 in) |
| 1934 | 84.6 mm (3.3 in) |
| 1935 | 74.3 mm (2.9 in) |
| 1936 | 113.8 mm (4.5 in) |
| 1937 | 96.0 mm (3.8 in) |
| 1938 | 112.8 mm (4.4 in) |
| 1939 | 63.2 mm (2.5 in) |
| 1940 | 90.4 mm (3.6 in) |
| 1941 | 139.2 mm (5.5 in) |
| 1942 | 80.8 mm (3.2 in) |
| 1943 | 82.6 mm (3.3 in) |
| 1944 | 49.6 mm (2.0 in) |
| 1945 | 76.4 mm (3.0 in) |
| 1946 | 54.4 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1896 | 24 days |
| 1897 | 23 days |
| 1898 | 13 days |
| 1899 | 22 days |
| 1900 | 18 days |
| 1901 | 20 days |
| 1902 | 19 days |
| 1903 | 28 days |
| 1904 | 29 days |
| 1905 | 22 days |
| 1906 | 19 days |
| 1907 | 25 days |
| 1908 | 28 days |
| 1909 | 15 days |
| 1910 | 36 days |
| 1911 | 36 days |
| 1912 | 26 days |
| 1913 | 28 days |
| 1914 | 15 days |
| 1915 | 33 days |
| 1916 | 41 days |
| 1917 | 21 days |
| 1918 | 22 days |
| 1919 | 28 days |
| 1920 | 19 days |
| 1921 | 24 days |
| 1922 | 28 days |
| 1923 | 25 days |
| 1924 | 17 days |
| 1925 | 29 days |
| 1926 | 15 days |
| 1927 | 20 days |
| 1928 | 18 days |
| 1929 | 30 days |
| 1930 | 32 days |
| 1931 | 23 days |
| 1932 | 30 days |
| 1933 | 32 days |
| 1934 | 33 days |
| 1935 | 25 days |
| 1936 | 21 days |
| 1937 | 16 days |
| 1938 | 19 days |
| 1939 | 33 days |
| 1940 | 18 days |
| 1941 | 22 days |
| 1942 | 39 days |
| 1943 | 26 days |
| 1944 | 27 days |
| 1945 | 22 days |
| 1946 | 20 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
36 years with a frostAcross 36 years with a frost, the median last spring frost at Waverly falls on 3 May and the median first autumn frost on 30 September, which leaves a median of 151 days between them.
Fitted over all years, the growing season changes by -0.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1903 to 1945) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | n/a | 3 May | n/a | 0.0 days per decade |
| First autumn frost | 30 September | n/a | 30 September | n/a | -0.4 days per decade |
| Growing days | 151 days | n/a | 148 days | n/a | -0.4 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
41 years, 1897 to 1945A day with at least 56.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 118.0 mm (4.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 56.3 mm (2.2 in) | |
| 5 years | 71.0 mm (2.8 in) | |
| 10 years | 81.4 mm (3.2 in) | |
| 25 years | 95.5 mm (3.8 in) | |
| 50 years | 106.5 mm (4.2 in) | Longer than the 41 years of record |
| 100 years | 118.0 mm (4.6 in) | Longer than the 41 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, 41 years of values from 1897 to 1945.
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: 133.9 mm (5.3 in) in 1941; 83.3 mm (3.3 in) in 1900; 83.3 mm (3.3 in) in 1938.
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).