Waukee Weather Records (USC00138747)
Record envelope, standing records and threshold days for Waukee (USC00138747), Iowa, United States, with 60 years of record.
Key Facts for Waukee
- Waukee (USC00138747) is a weather station in Iowa, United States at 41.62 latitude and -93.88 longitude, 314 m (1,030 ft) above sea level.
- The station reports from 1894 to 1953, 60 years of record.
- 1,464 records set at Waukee still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Waukee set a daily record precipitation of 32.5 mm (1.3 in) on 30 March 1953.
About the Station
- Location: Iowa, United States, 41.62 latitude, -93.88 longitude.
- Elevation: 314 m (1,030 ft).
- Period of record: 1894 to 1953, 60 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 | 16.7 C (62.1 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Feb | 26.1 C (79.0 F) | -35.6 C (-32.1 F) | n/a | n/a |
| Mar | 30.6 C (87.1 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -14.4 C (6.1 F) | n/a | n/a |
| May | 41.7 C (107.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jun | 41.1 C (106.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jul | 43.3 C (109.9 F) | 5.6 C (42.1 F) | n/a | n/a |
| Aug | 44.4 C (111.9 F) | 3.3 C (37.9 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Oct | 35.6 C (96.1 F) | -16.1 C (3.0 F) | n/a | n/a |
| Nov | 28.3 C (82.9 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -32.2 C (-26.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 9 |
| 1895 | 28 |
| 1896 | 23 |
| 1897 | 20 |
| 1904 | 20 |
| 1905 | 38 |
| 1906 | 11 |
| 1907 | 30 |
| 1908 | 25 |
| 1909 | 38 |
| 1910 | 26 |
| 1911 | 38 |
| 1912 | 39 |
| 1913 | 48 |
| 1914 | 36 |
| 1915 | 38 |
| 1916 | 26 |
| 1917 | 30 |
| 1918 | 42 |
| 1919 | 15 |
| 1920 | 28 |
| 1921 | 31 |
| 1922 | 12 |
| 1923 | 27 |
| 1924 | 34 |
| 1925 | 43 |
| 1926 | 19 |
| 1927 | 33 |
| 1928 | 16 |
| 1929 | 25 |
| 1930 | 56 |
| 1931 | 34 |
| 1932 | 20 |
| 1933 | 23 |
| 1934 | 70 |
| 1935 | 22 |
| 1936 | 69 |
| 1937 | 26 |
| 1938 | 29 |
| 1939 | 32 |
| 1940 | 19 |
| 1941 | 19 |
| 1942 | 24 |
| 1943 | 12 |
| 1944 | 18 |
| 1945 | 21 |
| 1946 | 35 |
| 1947 | 28 |
| 1948 | 19 |
| 1949 | 18 |
| 1950 | 22 |
Wettest Day of Each Month
Jul: 172.7 mm (6.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 38.1 mm (1.5 in) | 28 January 1909 |
| Feb | 40.6 mm (1.6 in) | 26 February 1948 |
| Mar | 44.2 mm (1.7 in) | 15 March 1919 |
| Apr | 106.2 mm (4.2 in) | 23 April 1897 |
| May | 73.7 mm (2.9 in) | 30 May 1903 |
| Jun | 124.0 mm (4.9 in) | 13 June 1926 |
| Jul | 172.7 mm (6.8 in) | 19 July 1904 |
| Aug | 116.8 mm (4.6 in) | 15 August 1908 |
| Sep | 109.2 mm (4.3 in) | 19 September 1926 |
| Oct | 61.7 mm (2.4 in) | 17 October 1935 |
| Nov | 52.1 mm (2.1 in) | 19 November 1948 |
| Dec | 38.1 mm (1.5 in) | 30 December 1906 |
Period of Record Coverage
1894 to 1950| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 90 | 25% | No |
| 1895 | 324 | 89% | No |
| 1896 | 299 | 82% | No |
| 1897 | 210 | 58% | No |
| 1903 | 31 | 8% | No |
| 1904 | 363 | 99% | Yes |
| 1905 | 354 | 97% | Yes |
| 1906 | 348 | 95% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 352 | 96% | Yes |
| 1909 | 362 | 99% | Yes |
| 1910 | 363 | 99% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 338 | 93% | Yes |
| 1914 | 351 | 96% | Yes |
| 1915 | 363 | 99% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 363 | 99% | Yes |
| 1926 | 361 | 99% | Yes |
| 1927 | 317 | 87% | No |
| 1928 | 271 | 74% | No |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 340 | 93% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 303 | 83% | No |
| 1943 | 330 | 90% | Yes |
| 1944 | 179 | 49% | No |
| 1945 | 364 | 100% | Yes |
| 1946 | 362 | 99% | Yes |
| 1947 | 361 | 99% | Yes |
| 1948 | 356 | 97% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 350 | 96% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 March 1953 | Waukee, US | daily rain | 32.5 mm (1.3 in) | 10.1 mm (0.4 in) | 15 years | 24 of 100 (Routine) |
| 6 January 1953 | Waukee, US | daily rain | 5.1 mm (0.20 in) | 2.3 mm (0.09 in) | 40 years | 20 of 100 (Routine) |
| 6 January 1953 | Waukee, US | daily snowfall | 7.6 cm (3.0 in) | 1.2 cm (0.5 in) | 40 years | 20 of 100 (Routine) |
| 19 December 1952 | Waukee, US | daily rain | 12.7 mm (0.5 in) | 10.2 mm (0.4 in) | 36 years | 20 of 100 (Routine) |
| 26 November 1952 | Waukee, US | daily snowfall | 5.1 cm (2.0 in) | 2.6 cm (1.0 in) | 16 years | 14 of 100 (Routine) |
| 25 November 1952 | Waukee, US | daily snowfall | 5.1 cm (2.0 in) | 1.3 cm (0.5 in) | 56 years | 24 of 100 (Routine) |
| 17 November 1952 | Waukee, US | daily rain | 36.6 mm (1.4 in) | 9.9 mm (0.39 in) | 21 years | 21 of 100 (Routine) |
| 28 August 1952 | Waukee, US | daily rain | 29.7 mm (1.2 in) | 20.6 mm (0.8 in) | 38 years | 28 of 100 (Routine) |
| 7 July 1952 | Waukee, US | daily rain | 53.3 mm (2.1 in) | 14.9 mm (0.6 in) | 30 years | 22 of 100 (Routine) |
| 27 June 1952 | Waukee, US | daily rain | 65.0 mm (2.6 in) | 28.9 mm (1.1 in) | 47 years | 38 of 100 (Notable) |
| 20 June 1952 | Waukee, US | daily rain | 101.1 mm (4.0 in) | 37.6 mm (1.5 in) | 21 years | 35 of 100 (Notable) |
| 22 May 1952 | Waukee, US | daily rain | 41.7 mm (1.6 in) | 16.0 mm (0.6 in) | 11 years | 21 of 100 (Routine) |
| 9 May 1952 | Waukee, US | daily rain | 29.5 mm (1.2 in) | 12.2 mm (0.5 in) | 7 years | 17 of 100 (Routine) |
| 31 March 1952 | Waukee, US | daily rain | 18.8 mm (0.7 in) | 2.5 mm (0.10 in) | 23 years | 14 of 100 (Routine) |
| 10 March 1952 | Waukee, US | daily rain | 20.3 mm (0.8 in) | 15.7 mm (0.6 in) | 26 years | 20 of 100 (Routine) |
| 17 December 1951 | Waukee, US | daily snowfall | 7.6 cm (3.0 in) | 3.8 cm (1.5 in) | 40 years | 27 of 100 (Routine) |
| 17 December 1951 | Waukee, US | daily rain | 7.6 mm (0.30 in) | 4.6 mm (0.18 in) | 40 years | 20 of 100 (Routine) |
| 14 December 1951 | Waukee, US | monthly snowfall (Tie) | 16.5 cm (6.5 in) | tie | 41 years | 6 of 100 (Routine) |
| 20 August 1951 | Waukee, US | daily rain | 40.4 mm (1.6 in) | 30.0 mm (1.2 in) | 22 years | 29 of 100 (Routine) |
| 22 July 1951 | Waukee, US | daily rain | 3.3 mm (0.13 in) | 0.8 mm (0.03 in) | 17 years | 10 of 100 (Routine) |
Climate Trend
39 complete years, 1904 to 1950| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1904 | 9.5 C | -0.31 C |
| 1905 | 9.6 C | -0.25 C |
| 1906 | 9.8 C | -0.04 C |
| 1907 | 9.2 C | -0.70 C |
| 1908 | 10.0 C | +0.13 C |
| 1909 | 9.0 C | -0.88 C |
| 1910 | 9.6 C | -0.22 C |
| 1911 | 10.2 C | +0.33 C |
| 1912 | 7.9 C | -1.97 C |
| 1914 | 9.9 C | +0.03 C |
| 1915 | 9.1 C | -0.73 C |
| 1916 | 9.2 C | -0.67 C |
| 1917 | 7.8 C | -2.07 C |
| 1918 | 10.4 C | +0.51 C |
| 1919 | 9.4 C | -0.43 C |
| 1920 | 9.4 C | -0.43 C |
| 1921 | 11.8 C | +1.92 C |
| 1922 | 10.5 C | +0.66 C |
| 1923 | 10.0 C | +0.12 C |
| 1924 | 8.4 C | -1.46 C |
| 1925 | 9.8 C | -0.09 C |
| 1929 | 8.2 C | -1.63 C |
| 1930 | 10.6 C | +0.70 C |
| 1931 | 12.1 C | +2.21 C |
| 1932 | 9.4 C | -0.45 C |
| 1933 | 10.9 C | +1.07 C |
| 1935 | 9.4 C | -0.41 C |
| 1936 | 9.9 C | 0.00 C |
| 1937 | 9.1 C | -0.75 C |
| 1938 | 11.4 C | +1.54 C |
| 1939 | 11.3 C | +1.42 C |
| 1940 | 9.1 C | -0.71 C |
| 1941 | 10.9 C | +1.08 C |
| 1945 | 9.6 C | -0.28 C |
| 1946 | 11.5 C | +1.61 C |
| 1947 | 10.5 C | +0.62 C |
| 1948 | 10.4 C | +0.54 C |
| 1949 | 10.8 C | +0.99 C |
| 1950 | 9.0 C | -0.88 C |
The annual mean temperature here has risen by 0.25 C (0.02 to 0.47) per decade over 1904 to 1950. In Fahrenheit: 0.45 F (0.04 to 0.85) 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 | 0.25 C (0.02 to 0.47) per decade | 0.45 F (0.04 to 0.85) per decade | 1904 to 1950 | 39 | Rise |
| Mean daily maximum | 0.2 C (-0.1 to 0.5) per decade | 0.4 F (-0.1 to 0.8) per decade | 1904 to 1950 | 39 | Not clearly different from zero |
| Mean daily minimum | 0.3 C (0.1 to 0.5) per decade | 0.5 F (0.1 to 0.9) per decade | 1904 to 1950 | 39 | 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
1894 to 1953| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 44.4 C (111.9 F) | 1918 | 36.7 C (98.1 F) | 52 |
| Coldest night (TNn) | -37.8 C (-36.0 F) | 1912 | -26.1 C (-15.0 F) | 52 |
| Wettest day (Rx1day) | 172.7 mm (6.8 in) | 1904 | 59.1 mm (2.3 in) | 56 |
| Wettest five days (Rx5day) | 187.7 mm (7.4 in) | 1904 | 93.4 mm (3.7 in) | 56 |
| Longest dry spell (CDD) | 55 days | 1952 | 25 days | 56 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 27.2 C (81.0 F) |
| 1895 | 36.7 C (98.1 F) |
| 1896 | 36.7 C (98.1 F) |
| 1897 | 36.1 C (97.0 F) |
| 1902 | n/a |
| 1903 | 12.2 C (54.0 F) |
| 1904 | 36.1 C (97.0 F) |
| 1905 | 40.0 C (104.0 F) |
| 1906 | 34.4 C (93.9 F) |
| 1907 | 36.1 C (97.0 F) |
| 1908 | 34.4 C (93.9 F) |
| 1909 | 35.0 C (95.0 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 41.1 C (106.0 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 37.2 C (99.0 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 38.3 C (100.9 F) |
| 1917 | 37.8 C (100.0 F) |
| 1918 | 44.4 C (111.9 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 36.7 C (98.1 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 36.7 C (98.1 F) |
| 1925 | 38.9 C (102.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 38.3 C (100.9 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 35.0 C (95.0 F) |
| 1930 | 41.7 C (107.1 F) |
| 1931 | 38.9 C (102.0 F) |
| 1932 | 36.7 C (98.1 F) |
| 1933 | 39.4 C (102.9 F) |
| 1934 | 43.9 C (111.0 F) |
| 1935 | 38.3 C (100.9 F) |
| 1936 | 43.3 C (109.9 F) |
| 1937 | 38.9 C (102.0 F) |
| 1938 | 38.3 C (100.9 F) |
| 1939 | 40.6 C (105.1 F) |
| 1940 | 41.1 C (106.0 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 39.4 C (102.9 F) |
| 1948 | 38.3 C (100.9 F) |
| 1949 | 35.6 C (96.1 F) |
| 1950 | 35.0 C (95.0 F) |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -22.8 C (-9.0 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1896 | -22.8 C (-9.0 F) |
| 1897 | -26.7 C (-16.1 F) |
| 1902 | n/a |
| 1903 | -23.9 C (-11.0 F) |
| 1904 | -28.3 C (-18.9 F) |
| 1905 | -35.6 C (-32.1 F) |
| 1906 | -25.0 C (-13.0 F) |
| 1907 | -30.0 C (-22.0 F) |
| 1908 | -25.0 C (-13.0 F) |
| 1909 | -26.1 C (-15.0 F) |
| 1910 | -28.3 C (-18.9 F) |
| 1911 | -27.8 C (-18.0 F) |
| 1912 | -37.8 C (-36.0 F) |
| 1913 | -27.8 C (-18.0 F) |
| 1914 | -28.3 C (-18.9 F) |
| 1915 | -30.0 C (-22.0 F) |
| 1916 | -30.6 C (-23.1 F) |
| 1917 | -32.2 C (-26.0 F) |
| 1918 | -31.7 C (-25.1 F) |
| 1919 | -32.2 C (-26.0 F) |
| 1920 | -24.4 C (-11.9 F) |
| 1921 | -23.3 C (-9.9 F) |
| 1922 | -23.3 C (-9.9 F) |
| 1923 | -27.2 C (-17.0 F) |
| 1924 | -33.3 C (-27.9 F) |
| 1925 | -25.6 C (-14.1 F) |
| 1926 | -22.2 C (-8.0 F) |
| 1927 | -24.4 C (-11.9 F) |
| 1928 | -23.3 C (-9.9 F) |
| 1929 | -27.8 C (-18.0 F) |
| 1930 | -30.6 C (-23.1 F) |
| 1931 | -20.0 C (-4.0 F) |
| 1932 | -27.8 C (-18.0 F) |
| 1933 | -30.6 C (-23.1 F) |
| 1934 | -26.1 C (-15.0 F) |
| 1935 | -26.1 C (-15.0 F) |
| 1936 | -31.1 C (-24.0 F) |
| 1937 | -22.8 C (-9.0 F) |
| 1938 | -23.9 C (-11.0 F) |
| 1939 | -23.9 C (-11.0 F) |
| 1940 | -30.0 C (-22.0 F) |
| 1941 | -19.4 C (-2.9 F) |
| 1942 | -31.1 C (-24.0 F) |
| 1943 | -23.9 C (-11.0 F) |
| 1944 | -23.3 C (-9.9 F) |
| 1945 | -24.4 C (-11.9 F) |
| 1946 | -23.3 C (-9.9 F) |
| 1947 | -25.6 C (-14.1 F) |
| 1948 | -28.3 C (-18.9 F) |
| 1949 | -25.0 C (-13.0 F) |
| 1950 | -23.9 C (-11.0 F) |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 15.5 mm (0.6 in) |
| 1895 | 66.0 mm (2.6 in) |
| 1896 | 74.2 mm (2.9 in) |
| 1897 | 106.2 mm (4.2 in) |
| 1902 | 17.0 mm (0.7 in) |
| 1903 | 73.7 mm (2.9 in) |
| 1904 | 172.7 mm (6.8 in) |
| 1905 | 43.2 mm (1.7 in) |
| 1906 | 44.5 mm (1.8 in) |
| 1907 | 91.4 mm (3.6 in) |
| 1908 | 121.9 mm (4.8 in) |
| 1909 | 50.8 mm (2.0 in) |
| 1910 | 37.1 mm (1.5 in) |
| 1911 | 59.7 mm (2.4 in) |
| 1912 | 56.9 mm (2.2 in) |
| 1913 | 38.1 mm (1.5 in) |
| 1914 | 59.2 mm (2.3 in) |
| 1915 | 55.1 mm (2.2 in) |
| 1916 | 49.5 mm (1.9 in) |
| 1917 | 64.0 mm (2.5 in) |
| 1918 | 71.1 mm (2.8 in) |
| 1919 | 54.9 mm (2.2 in) |
| 1920 | 45.7 mm (1.8 in) |
| 1921 | 72.6 mm (2.9 in) |
| 1922 | 67.1 mm (2.6 in) |
| 1923 | 55.9 mm (2.2 in) |
| 1924 | 71.6 mm (2.8 in) |
| 1925 | 68.1 mm (2.7 in) |
| 1926 | 124.0 mm (4.9 in) |
| 1927 | 44.7 mm (1.8 in) |
| 1928 | 68.8 mm (2.7 in) |
| 1929 | 47.2 mm (1.9 in) |
| 1930 | 54.6 mm (2.1 in) |
| 1931 | 78.7 mm (3.1 in) |
| 1932 | 52.1 mm (2.1 in) |
| 1933 | 61.0 mm (2.4 in) |
| 1934 | 50.8 mm (2.0 in) |
| 1935 | 61.7 mm (2.4 in) |
| 1936 | 68.3 mm (2.7 in) |
| 1937 | 42.2 mm (1.7 in) |
| 1938 | 50.8 mm (2.0 in) |
| 1939 | 71.9 mm (2.8 in) |
| 1940 | 62.2 mm (2.4 in) |
| 1941 | 99.8 mm (3.9 in) |
| 1942 | 72.4 mm (2.9 in) |
| 1943 | 58.9 mm (2.3 in) |
| 1944 | 55.6 mm (2.2 in) |
| 1945 | 44.2 mm (1.7 in) |
| 1946 | 76.7 mm (3.0 in) |
| 1947 | 121.2 mm (4.8 in) |
| 1948 | 52.1 mm (2.1 in) |
| 1949 | 29.0 mm (1.1 in) |
| 1950 | 56.9 mm (2.2 in) |
| 1951 | 55.4 mm (2.2 in) |
| 1952 | 101.1 mm (4.0 in) |
| 1953 | 32.5 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 22.6 mm (0.9 in) |
| 1895 | 100.3 mm (3.9 in) |
| 1896 | 97.0 mm (3.8 in) |
| 1897 | 168.5 mm (6.6 in) |
| 1902 | 31.5 mm (1.2 in) |
| 1903 | 177.3 mm (7.0 in) |
| 1904 | 187.7 mm (7.4 in) |
| 1905 | 83.7 mm (3.3 in) |
| 1906 | 59.2 mm (2.3 in) |
| 1907 | 141.2 mm (5.6 in) |
| 1908 | 147.4 mm (5.8 in) |
| 1909 | 83.1 mm (3.3 in) |
| 1910 | 70.7 mm (2.8 in) |
| 1911 | 87.7 mm (3.5 in) |
| 1912 | 72.9 mm (2.9 in) |
| 1913 | 65.8 mm (2.6 in) |
| 1914 | 135.7 mm (5.3 in) |
| 1915 | 94.0 mm (3.7 in) |
| 1916 | 63.0 mm (2.5 in) |
| 1917 | 115.9 mm (4.6 in) |
| 1918 | 110.0 mm (4.3 in) |
| 1919 | 132.7 mm (5.2 in) |
| 1920 | 79.5 mm (3.1 in) |
| 1921 | 97.0 mm (3.8 in) |
| 1922 | 104.4 mm (4.1 in) |
| 1923 | 90.2 mm (3.6 in) |
| 1924 | 118.5 mm (4.7 in) |
| 1925 | 76.7 mm (3.0 in) |
| 1926 | 156.0 mm (6.1 in) |
| 1927 | 79.0 mm (3.1 in) |
| 1928 | 97.2 mm (3.8 in) |
| 1929 | 86.3 mm (3.4 in) |
| 1930 | 82.8 mm (3.3 in) |
| 1931 | 114.1 mm (4.5 in) |
| 1932 | 100.1 mm (3.9 in) |
| 1933 | 64.3 mm (2.5 in) |
| 1934 | 101.1 mm (4.0 in) |
| 1935 | 94.3 mm (3.7 in) |
| 1936 | 97.8 mm (3.9 in) |
| 1937 | 59.7 mm (2.4 in) |
| 1938 | 62.0 mm (2.4 in) |
| 1939 | 84.9 mm (3.3 in) |
| 1940 | 138.1 mm (5.4 in) |
| 1941 | 135.1 mm (5.3 in) |
| 1942 | 127.7 mm (5.0 in) |
| 1943 | 91.2 mm (3.6 in) |
| 1944 | 86.9 mm (3.4 in) |
| 1945 | 71.7 mm (2.8 in) |
| 1946 | 121.6 mm (4.8 in) |
| 1947 | 139.0 mm (5.5 in) |
| 1948 | 56.6 mm (2.2 in) |
| 1949 | 59.4 mm (2.3 in) |
| 1950 | 92.8 mm (3.7 in) |
| 1951 | 66.8 mm (2.6 in) |
| 1952 | 158.0 mm (6.2 in) |
| 1953 | 35.0 mm (1.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 16 days |
| 1895 | 26 days |
| 1896 | 30 days |
| 1897 | 20 days |
| 1902 | 12 days |
| 1903 | 21 days |
| 1904 | 30 days |
| 1905 | 25 days |
| 1906 | 30 days |
| 1907 | 17 days |
| 1908 | 28 days |
| 1909 | 27 days |
| 1910 | 47 days |
| 1911 | 19 days |
| 1912 | 26 days |
| 1913 | 28 days |
| 1914 | 23 days |
| 1915 | 22 days |
| 1916 | 29 days |
| 1917 | 21 days |
| 1918 | 18 days |
| 1919 | 31 days |
| 1920 | 16 days |
| 1921 | 26 days |
| 1922 | 21 days |
| 1923 | 25 days |
| 1924 | 21 days |
| 1925 | 31 days |
| 1926 | 22 days |
| 1927 | 29 days |
| 1928 | 17 days |
| 1929 | 25 days |
| 1930 | 29 days |
| 1931 | 45 days |
| 1932 | 31 days |
| 1933 | 29 days |
| 1934 | 36 days |
| 1935 | 18 days |
| 1936 | 22 days |
| 1937 | 18 days |
| 1938 | 25 days |
| 1939 | 23 days |
| 1940 | 20 days |
| 1941 | 21 days |
| 1942 | 37 days |
| 1943 | 18 days |
| 1944 | 25 days |
| 1945 | 37 days |
| 1946 | 26 days |
| 1947 | 25 days |
| 1948 | 36 days |
| 1949 | 31 days |
| 1950 | 24 days |
| 1951 | 18 days |
| 1952 | 55 days |
| 1953 | 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 Waukee falls on 27 April and the median first autumn frost on 9 October, which leaves a median of 163 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1914 to 1950) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 27 April | n/a | 27 April | n/a | -2.0 days per decade |
| First autumn frost | 9 October | n/a | 7 October | n/a | +1.3 days per decade |
| Growing days | 163 days | n/a | 164 days | n/a | +3.2 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
46 years, 1895 to 1952A day with at least 59.3 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 174.2 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 | 59.3 mm (2.3 in) | |
| 5 years | 80.2 mm (3.2 in) | |
| 10 years | 97.2 mm (3.8 in) | |
| 25 years | 123.5 mm (4.9 in) | |
| 50 years | 146.9 mm (5.8 in) | Longer than the 46 years of record |
| 100 years | 174.2 mm (6.9 in) | Longer than the 46 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, 46 years of values from 1895 to 1952.
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: 172.7 mm (6.8 in) in 1904; 124.0 mm (4.9 in) in 1926; 121.9 mm (4.8 in) in 1908.
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).