Adel Weather Records (USC00240056)
Record envelope, standing records and threshold days for Adel (USC00240056), Montana, United States, with 129 years of record.
Key Facts for Adel
- Adel (USC00240056) is a weather station in Montana, United States at 47.01 latitude and -111.67 longitude, 1,529 m (5,017 ft) above sea level.
- The station reports from 1898 to 2026, 129 years of record.
- 1,464 records set at Adel still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Adel tied a daily record low minimum temperature of 1.7 C (35.1 F) on 3 August 2026.
About the Station
- Location: Montana, United States, 47.01 latitude, -111.67 longitude.
- Elevation: 1,529 m (5,017 ft).
- Period of record: 1898 to 2026, 129 years.
- Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
8 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.8 C (64.0 F) | -43.3 C (-45.9 F) | 13.3 C (55.9 F) | -24.4 C (-11.9 F) |
| Feb | 18.9 C (66.0 F) | -46.1 C (-51.0 F) | 16.1 C (61.0 F) | -27.8 C (-18.0 F) |
| Mar | 21.1 C (70.0 F) | -40.0 C (-40.0 F) | 18.9 C (66.0 F) | -21.7 C (-7.1 F) |
| Apr | 28.9 C (84.0 F) | -30.0 C (-22.0 F) | 23.9 C (75.0 F) | -8.9 C (16.0 F) |
| May | 32.2 C (90.0 F) | -16.7 C (1.9 F) | 27.2 C (81.0 F) | -7.8 C (18.0 F) |
| Jun | 37.2 C (99.0 F) | -6.1 C (21.0 F) | 23.9 C (75.0 F) | -1.1 C (30.0 F) |
| Jul | 41.1 C (106.0 F) | -3.9 C (25.0 F) | 35.0 C (95.0 F) | 5.0 C (41.0 F) |
| Aug | 38.3 C (100.9 F) | -5.6 C (21.9 F) | 31.1 C (88.0 F) | 0.6 C (33.1 F) |
| Sep | 35.6 C (96.1 F) | -20.6 C (-5.1 F) | 17.2 C (63.0 F) | 1.7 C (35.1 F) |
| Oct | 30.0 C (86.0 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Nov | 23.9 C (75.0 F) | -38.3 C (-36.9 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -43.3 C (-45.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1898 | 14 |
| 1899 | 33 |
| 1900 | 22 |
| 1901 | 16 |
| 1902 | 21 |
| 1903 | 11 |
| 1904 | 20 |
| 1905 | 18 |
| 1906 | 28 |
| 1907 | 12 |
| 1908 | 17 |
| 1909 | 19 |
| 1910 | 38 |
| 1911 | 14 |
| 1912 | 8 |
| 1913 | 22 |
| 1914 | 21 |
| 1915 | 16 |
| 1916 | 19 |
| 1917 | 16 |
| 1918 | 22 |
| 1919 | 55 |
| 1920 | 7 |
| 1921 | 35 |
| 1922 | 20 |
| 1923 | 11 |
| 1924 | 23 |
| 1925 | 11 |
| 1926 | 23 |
| 1927 | 30 |
| 1928 | 22 |
| 1929 | 25 |
| 1930 | 10 |
| 1931 | 25 |
| 1932 | 20 |
| 1933 | 8 |
| 1934 | 10 |
| 1935 | 36 |
| 1936 | 86 |
| 1937 | 17 |
| 1938 | 14 |
| 1939 | 33 |
| 1940 | 15 |
| 1941 | 12 |
| 1942 | 11 |
| 1943 | 25 |
| 1944 | 16 |
| 1945 | 20 |
| 1946 | 12 |
| 1947 | 21 |
| 1948 | 7 |
| 1949 | 23 |
| 1950 | 32 |
| 1951 | 23 |
| 1952 | 14 |
| 1953 | 18 |
| 1954 | 10 |
| 2013 | 7 |
| 2014 | 20 |
| 2015 | 18 |
| 2016 | 16 |
| 2017 | 14 |
| 2018 | 12 |
| 2019 | 37 |
| 2020 | 20 |
| 2021 | 33 |
| 2022 | 32 |
| 2023 | 17 |
| 2024 | 14 |
| 2025 | 17 |
| 2026 | 20 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1933-07-26 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 1934-06-08 | Record daily precipitation | Record daily precipitation 106.7 mm (4.2 in) |
| 1936-02-07 | Record low maximum temperature | Record low maximum temperature -34.4 C (-29.9 F) |
| 1936-07-22 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
Wettest Day of Each Month
Jun: 106.7 mm (4.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 27.9 mm (1.1 in) | 25 January 1918 |
| Feb | 50.8 mm (2.0 in) | 7 February 1923 |
| Mar | 48.3 mm (1.9 in) | 15 March 1924 |
| Apr | 55.9 mm (2.2 in) | 26 April 1901 |
| May | 76.2 mm (3.0 in) | 2 May 1912 |
| Jun | 106.7 mm (4.2 in) | 8 June 1934 |
| Jul | 44.5 mm (1.8 in) | 3 July 1903 |
| Aug | 50.8 mm (2.0 in) | 24 August 1910 |
| Sep | 71.6 mm (2.8 in) | 7 September 1941 |
| Oct | 50.8 mm (2.0 in) | 5 October 1913 |
| Nov | 30.5 mm (1.2 in) | 20 November 1906 |
| Dec | 38.1 mm (1.5 in) | 19 December 1909 |
Period of Record Coverage
1898 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1898 | 309 | 85% | No |
| 1899 | 363 | 99% | Yes |
| 1900 | 241 | 66% | No |
| 1901 | 345 | 95% | Yes |
| 1902 | 277 | 76% | No |
| 1903 | 304 | 83% | No |
| 1904 | 353 | 96% | Yes |
| 1905 | 301 | 82% | No |
| 1906 | 362 | 99% | Yes |
| 1907 | 354 | 97% | Yes |
| 1908 | 365 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 361 | 99% | Yes |
| 1915 | 359 | 98% | Yes |
| 1916 | 361 | 99% | Yes |
| 1917 | 357 | 98% | Yes |
| 1918 | 357 | 98% | Yes |
| 1919 | 362 | 99% | Yes |
| 1920 | 335 | 92% | Yes |
| 1921 | 363 | 99% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 363 | 99% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 363 | 99% | Yes |
| 1928 | 340 | 93% | Yes |
| 1929 | 290 | 79% | No |
| 1930 | 231 | 63% | No |
| 1931 | 323 | 88% | No |
| 1932 | 361 | 99% | Yes |
| 1933 | 285 | 78% | No |
| 1934 | 151 | 41% | No |
| 1935 | 364 | 100% | Yes |
| 1936 | 360 | 98% | Yes |
| 1937 | 332 | 91% | Yes |
| 1938 | 337 | 92% | Yes |
| 1939 | 362 | 99% | Yes |
| 1940 | 355 | 97% | Yes |
| 1941 | 359 | 98% | Yes |
| 1942 | 334 | 92% | Yes |
| 1943 | 327 | 90% | No |
| 1944 | 361 | 99% | Yes |
| 1945 | 349 | 96% | Yes |
| 1946 | 336 | 92% | Yes |
| 1947 | 330 | 90% | Yes |
| 1948 | 321 | 88% | No |
| 1949 | 271 | 74% | No |
| 1950 | 273 | 75% | No |
| 1951 | 292 | 80% | No |
| 1952 | 295 | 81% | No |
| 1953 | 278 | 76% | No |
| 1954 | 214 | 59% | No |
| 2013 | 248 | 68% | No |
| 2014 | 358 | 98% | Yes |
| 2015 | 356 | 98% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 346 | 95% | Yes |
| 2018 | 349 | 96% | Yes |
| 2019 | 360 | 99% | Yes |
| 2020 | 357 | 98% | Yes |
| 2021 | 361 | 99% | Yes |
| 2022 | 353 | 97% | Yes |
| 2023 | 348 | 95% | Yes |
| 2024 | 329 | 90% | No |
| 2025 | 364 | 100% | Yes |
| 2026 | 245 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 August 2026 | Adel, US | daily low min (Tie) | 1.7 C (35.1 F) | tie | 126 years | 10 of 100 (Routine) |
| 31 July 2026 | Adel, US | daily high max (Tie) | 35.0 C (95.0 F) | tie | 73 years | 8 of 100 (Routine) |
| 11 July 2026 | Adel, US | daily high max | 33.3 C (91.9 F) | 1.1 C (2.0 F) | 107 years | 42 of 100 (Notable) |
| 29 June 2026 | Adel, US | daily rain | 19.8 mm (0.8 in) | 7.1 mm (0.28 in) | 107 years | 20 of 100 (Routine) |
| 28 June 2026 | Adel, US | daily rain | 52.1 mm (2.1 in) | 21.6 mm (0.9 in) | 109 years | 58 of 100 (Notable) |
| 27 June 2026 | Adel, US | daily low max (Tie) | 11.7 C (53.1 F) | tie | 81 years | 8 of 100 (Routine) |
| 26 June 2026 | Adel, US | daily low max | 11.7 C (53.1 F) | 1.1 C (2.0 F) | 124 years | 41 of 100 (Notable) |
| 15 June 2026 | Adel, US | daily high min (Tie) | 13.9 C (57.0 F) | tie | 116 years | 10 of 100 (Routine) |
| 30 May 2026 | Adel, US | daily rain | 24.4 mm (1.0 in) | 1.5 mm (0.06 in) | 72 years | 20 of 100 (Routine) |
| 25 May 2026 | Adel, US | daily high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 72 years | 32 of 100 (Routine) |
| 10 May 2026 | Adel, US | daily high min (Tie) | 6.7 C (44.1 F) | tie | 107 years | 10 of 100 (Routine) |
| 6 May 2026 | Adel, US | daily high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 8 years | 14 of 100 (Routine) |
| 26 April 2026 | Adel, US | daily low max | 1.1 C (34.0 F) | 3.3 C (5.9 F) | 93 years | 43 of 100 (Notable) |
| 25 April 2026 | Adel, US | daily low max | -2.8 C (27.0 F) | 6.1 C (11.0 F) | 85 years | 44 of 100 (Notable) |
| 24 April 2026 | Adel, US | daily low max | -0.6 C (30.9 F) | 3.9 C (7.0 F) | 4 years | 16 of 100 (Routine) |
| 23 April 2026 | Adel, US | daily low max (Tie) | 0.0 C (32.0 F) | tie | 126 years | 10 of 100 (Routine) |
| 20 April 2026 | Adel, US | daily high max | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 117 years | 40 of 100 (Notable) |
| 2 April 2026 | Adel, US | daily snowfall | 15.2 cm (6.0 in) | 2.5 cm (1.0 in) | 95 years | 40 of 100 (Notable) |
| 28 March 2026 | Adel, US | daily high min | 5.0 C (41.0 F) | 1.1 C (2.0 F) | 77 years | 34 of 100 (Routine) |
| 19 March 2026 | Adel, US | daily high min | 9.4 C (48.9 F) | 2.2 C (4.0 F) | 116 years | 42 of 100 (Notable) |
Climate Trend
37 complete years, 1899 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1899 | 2.7 C | -2.40 C |
| 1906 | 5.4 C | +0.27 C |
| 1908 | 5.9 C | +0.78 C |
| 1909 | 4.3 C | -0.80 C |
| 1912 | 4.8 C | -0.39 C |
| 1913 | 4.6 C | -0.56 C |
| 1914 | 5.9 C | +0.72 C |
| 1915 | 6.5 C | +1.39 C |
| 1916 | 3.7 C | -1.42 C |
| 1918 | 6.0 C | +0.83 C |
| 1919 | 5.7 C | +0.53 C |
| 1921 | 5.9 C | +0.76 C |
| 1922 | 4.3 C | -0.86 C |
| 1923 | 4.5 C | -0.62 C |
| 1924 | 4.0 C | -1.16 C |
| 1925 | 5.3 C | +0.16 C |
| 1926 | 5.1 C | -0.04 C |
| 1927 | 1.6 C | -3.52 C |
| 1932 | 4.8 C | -0.34 C |
| 1935 | 5.5 C | +0.38 C |
| 1936 | 6.0 C | +0.85 C |
| 1939 | 6.8 C | +1.66 C |
| 1940 | 5.9 C | +0.74 C |
| 1941 | 6.1 C | +0.98 C |
| 1944 | 5.1 C | -0.01 C |
| 2014 | 4.6 C | -0.53 C |
| 2015 | 6.1 C | +1.00 C |
| 2016 | 5.9 C | +0.78 C |
| 2017 | 5.1 C | -0.05 C |
| 2018 | 4.1 C | -1.01 C |
| 2019 | 2.7 C | -2.49 C |
| 2020 | 5.2 C | +0.09 C |
| 2021 | 5.8 C | +0.69 C |
| 2022 | 5.1 C | -0.09 C |
| 2023 | 5.8 C | +0.68 C |
| 2024 | 6.5 C | +1.39 C |
| 2025 | 6.8 C | +1.61 C |
The fitted trend in annual mean temperature here over 1899 to 2025 is 0.04 C (-0.04 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.04 C (-0.04 to 0.12) per decade | 0.1 F (-0.1 to 0.2) per decade | 1899 to 2025 | 37 | Not clearly different from zero |
| Mean daily maximum | -0.07 C (-0.17 to 0.03) per decade | -0.13 F (-0.31 to 0.05) per decade | 1899 to 2025 | 37 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1899 to 2025 | 37 | 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
1898 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 1936 | 33.9 C (93.0 F) | 71 |
| Coldest night (TNn) | -46.1 C (-51.0 F) | 1905 | -36.7 C (-34.1 F) | 71 |
| Wettest day (Rx1day) | 106.7 mm (4.2 in) | 1934 | 40.8 mm (1.6 in) | 72 |
| Wettest five days (Rx5day) | 177.1 mm (7.0 in) | 1908 | 61.0 mm (2.4 in) | 71 |
| Longest dry spell (CDD) | 78 days | 1939 | 31 days | 72 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1898 | 32.2 C (90.0 F) |
| 1899 | 32.8 C (91.0 F) |
| 1900 | 36.1 C (97.0 F) |
| 1901 | 33.3 C (91.9 F) |
| 1902 | 30.6 C (87.1 F) |
| 1903 | 32.8 C (91.0 F) |
| 1904 | 33.3 C (91.9 F) |
| 1905 | 32.8 C (91.0 F) |
| 1906 | 34.4 C (93.9 F) |
| 1907 | 28.9 C (84.0 F) |
| 1908 | 33.3 C (91.9 F) |
| 1909 | 31.7 C (89.1 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 30.6 C (87.1 F) |
| 1912 | 31.7 C (89.1 F) |
| 1913 | 31.7 C (89.1 F) |
| 1914 | 32.8 C (91.0 F) |
| 1915 | 31.1 C (88.0 F) |
| 1916 | 31.1 C (88.0 F) |
| 1917 | 33.9 C (93.0 F) |
| 1918 | 32.8 C (91.0 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 32.8 C (91.0 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 33.9 C (93.0 F) |
| 1923 | 30.6 C (87.1 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 33.9 C (93.0 F) |
| 1926 | 32.8 C (91.0 F) |
| 1927 | 30.0 C (86.0 F) |
| 1928 | 32.8 C (91.0 F) |
| 1929 | 35.6 C (96.1 F) |
| 1930 | 31.7 C (89.1 F) |
| 1931 | 37.2 C (99.0 F) |
| 1932 | 33.9 C (93.0 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 36.7 C (98.1 F) |
| 1935 | 36.7 C (98.1 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 34.4 C (93.9 F) |
| 1938 | 32.2 C (90.0 F) |
| 1939 | 36.1 C (97.0 F) |
| 1940 | 38.3 C (100.9 F) |
| 1941 | 33.9 C (93.0 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 31.1 C (88.0 F) |
| 1945 | 34.4 C (93.9 F) |
| 1946 | 35.0 C (95.0 F) |
| 1947 | 33.9 C (93.0 F) |
| 1948 | 34.4 C (93.9 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 36.7 C (98.1 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 33.9 C (93.0 F) |
| 1969 | n/a |
| 2013 | 33.3 C (91.9 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 33.3 C (91.9 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 31.7 C (89.1 F) |
| 2020 | 31.7 C (89.1 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 34.4 C (93.9 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 34.4 C (93.9 F) |
| 2025 | 33.3 C (91.9 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1898 | -38.3 C (-36.9 F) |
| 1899 | -45.6 C (-50.1 F) |
| 1900 | -41.7 C (-43.1 F) |
| 1901 | -32.8 C (-27.0 F) |
| 1902 | -38.3 C (-36.9 F) |
| 1903 | -38.3 C (-36.9 F) |
| 1904 | -36.7 C (-34.1 F) |
| 1905 | -46.1 C (-51.0 F) |
| 1906 | -39.4 C (-38.9 F) |
| 1907 | -35.6 C (-32.1 F) |
| 1908 | -24.4 C (-11.9 F) |
| 1909 | -38.3 C (-36.9 F) |
| 1910 | -37.2 C (-35.0 F) |
| 1911 | -38.3 C (-36.9 F) |
| 1912 | -33.9 C (-29.0 F) |
| 1913 | -32.2 C (-26.0 F) |
| 1914 | -33.3 C (-27.9 F) |
| 1915 | -26.1 C (-15.0 F) |
| 1916 | -42.2 C (-44.0 F) |
| 1917 | -33.9 C (-29.0 F) |
| 1918 | -34.4 C (-29.9 F) |
| 1919 | -37.2 C (-35.0 F) |
| 1920 | -32.2 C (-26.0 F) |
| 1921 | -34.4 C (-29.9 F) |
| 1922 | -37.2 C (-35.0 F) |
| 1923 | -40.0 C (-40.0 F) |
| 1924 | -41.1 C (-42.0 F) |
| 1925 | -27.2 C (-17.0 F) |
| 1926 | -36.7 C (-34.1 F) |
| 1927 | -43.3 C (-45.9 F) |
| 1928 | -34.4 C (-29.9 F) |
| 1929 | -42.8 C (-45.0 F) |
| 1930 | -41.7 C (-43.1 F) |
| 1931 | -30.0 C (-22.0 F) |
| 1932 | -39.4 C (-38.9 F) |
| 1933 | -38.9 C (-38.0 F) |
| 1934 | -32.2 C (-26.0 F) |
| 1935 | -38.9 C (-38.0 F) |
| 1936 | -45.6 C (-50.1 F) |
| 1937 | -37.2 C (-35.0 F) |
| 1938 | -35.6 C (-32.1 F) |
| 1939 | -40.6 C (-41.1 F) |
| 1940 | -35.0 C (-31.0 F) |
| 1941 | -31.7 C (-25.1 F) |
| 1942 | -35.0 C (-31.0 F) |
| 1943 | -41.1 C (-42.0 F) |
| 1944 | -30.0 C (-22.0 F) |
| 1945 | -36.7 C (-34.1 F) |
| 1946 | -32.8 C (-27.0 F) |
| 1947 | -35.0 C (-31.0 F) |
| 1948 | -35.6 C (-32.1 F) |
| 1949 | -42.2 C (-44.0 F) |
| 1950 | -41.1 C (-42.0 F) |
| 1951 | -40.0 C (-40.0 F) |
| 1952 | -34.4 C (-29.9 F) |
| 1953 | -28.9 C (-20.0 F) |
| 1954 | -43.3 C (-45.9 F) |
| 1969 | n/a |
| 2013 | -35.0 C (-31.0 F) |
| 2014 | -36.7 C (-34.1 F) |
| 2015 | -26.7 C (-16.1 F) |
| 2016 | -35.0 C (-31.0 F) |
| 2017 | -28.3 C (-18.9 F) |
| 2018 | -30.6 C (-23.1 F) |
| 2019 | -38.9 C (-38.0 F) |
| 2020 | -29.4 C (-20.9 F) |
| 2021 | -37.2 C (-35.0 F) |
| 2022 | -38.3 C (-36.9 F) |
| 2023 | -33.9 C (-29.0 F) |
| 2024 | -42.8 C (-45.0 F) |
| 2025 | -31.7 C (-25.1 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1898 | 54.6 mm (2.1 in) |
| 1899 | 48.3 mm (1.9 in) |
| 1900 | 74.4 mm (2.9 in) |
| 1901 | 55.9 mm (2.2 in) |
| 1902 | 36.8 mm (1.4 in) |
| 1903 | 44.5 mm (1.8 in) |
| 1904 | 29.0 mm (1.1 in) |
| 1905 | 40.9 mm (1.6 in) |
| 1906 | 33.0 mm (1.3 in) |
| 1907 | 94.0 mm (3.7 in) |
| 1908 | 88.9 mm (3.5 in) |
| 1909 | 68.6 mm (2.7 in) |
| 1910 | 50.8 mm (2.0 in) |
| 1911 | 45.7 mm (1.8 in) |
| 1912 | 76.2 mm (3.0 in) |
| 1913 | 50.8 mm (2.0 in) |
| 1914 | 43.7 mm (1.7 in) |
| 1915 | 90.2 mm (3.6 in) |
| 1916 | 52.1 mm (2.1 in) |
| 1917 | 33.0 mm (1.3 in) |
| 1918 | 46.7 mm (1.8 in) |
| 1919 | 19.1 mm (0.8 in) |
| 1920 | 28.4 mm (1.1 in) |
| 1921 | 27.9 mm (1.1 in) |
| 1922 | 40.6 mm (1.6 in) |
| 1923 | 50.8 mm (2.0 in) |
| 1924 | 48.3 mm (1.9 in) |
| 1925 | 40.6 mm (1.6 in) |
| 1926 | 47.0 mm (1.9 in) |
| 1927 | 49.5 mm (1.9 in) |
| 1928 | 55.9 mm (2.2 in) |
| 1929 | 30.5 mm (1.2 in) |
| 1930 | 20.3 mm (0.8 in) |
| 1931 | 21.6 mm (0.9 in) |
| 1932 | 63.5 mm (2.5 in) |
| 1933 | 48.3 mm (1.9 in) |
| 1934 | 106.7 mm (4.2 in) |
| 1935 | 22.9 mm (0.9 in) |
| 1936 | 33.0 mm (1.3 in) |
| 1937 | 22.1 mm (0.9 in) |
| 1938 | 50.8 mm (2.0 in) |
| 1939 | 17.0 mm (0.7 in) |
| 1940 | 31.8 mm (1.3 in) |
| 1941 | 71.6 mm (2.8 in) |
| 1942 | 43.2 mm (1.7 in) |
| 1943 | 50.8 mm (2.0 in) |
| 1944 | 38.1 mm (1.5 in) |
| 1945 | 28.7 mm (1.1 in) |
| 1946 | 45.7 mm (1.8 in) |
| 1947 | 36.1 mm (1.4 in) |
| 1948 | 39.4 mm (1.6 in) |
| 1949 | 76.7 mm (3.0 in) |
| 1950 | 23.9 mm (0.9 in) |
| 1951 | 45.7 mm (1.8 in) |
| 1952 | 17.0 mm (0.7 in) |
| 1953 | 60.7 mm (2.4 in) |
| 1954 | 18.3 mm (0.7 in) |
| 1969 | 0.0 mm (0.00 in) |
| 2013 | 50.0 mm (2.0 in) |
| 2014 | 47.5 mm (1.9 in) |
| 2015 | 23.6 mm (0.9 in) |
| 2016 | 20.8 mm (0.8 in) |
| 2017 | 30.2 mm (1.2 in) |
| 2018 | 25.4 mm (1.0 in) |
| 2019 | 24.1 mm (0.9 in) |
| 2020 | 19.6 mm (0.8 in) |
| 2021 | 29.5 mm (1.2 in) |
| 2022 | 39.4 mm (1.6 in) |
| 2023 | 25.4 mm (1.0 in) |
| 2024 | 37.8 mm (1.5 in) |
| 2025 | 38.1 mm (1.5 in) |
| 2026 | 52.1 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1898 | 95.3 mm (3.8 in) |
| 1899 | 61.0 mm (2.4 in) |
| 1900 | 76.9 mm (3.0 in) |
| 1901 | 61.0 mm (2.4 in) |
| 1902 | 53.3 mm (2.1 in) |
| 1903 | 47.3 mm (1.9 in) |
| 1904 | 37.4 mm (1.5 in) |
| 1905 | 46.2 mm (1.8 in) |
| 1906 | 50.0 mm (2.0 in) |
| 1907 | 119.5 mm (4.7 in) |
| 1908 | 177.1 mm (7.0 in) |
| 1909 | 109.1 mm (4.3 in) |
| 1910 | 55.9 mm (2.2 in) |
| 1911 | 64.7 mm (2.5 in) |
| 1912 | 80.0 mm (3.1 in) |
| 1913 | 66.1 mm (2.6 in) |
| 1914 | 108.5 mm (4.3 in) |
| 1915 | 171.0 mm (6.7 in) |
| 1916 | 107.5 mm (4.2 in) |
| 1917 | 57.7 mm (2.3 in) |
| 1918 | 61.0 mm (2.4 in) |
| 1919 | 31.6 mm (1.2 in) |
| 1920 | 72.8 mm (2.9 in) |
| 1921 | 73.8 mm (2.9 in) |
| 1922 | 61.2 mm (2.4 in) |
| 1923 | 100.3 mm (3.9 in) |
| 1924 | 82.5 mm (3.2 in) |
| 1925 | 63.8 mm (2.5 in) |
| 1926 | 113.1 mm (4.5 in) |
| 1927 | 89.2 mm (3.5 in) |
| 1928 | 147.3 mm (5.8 in) |
| 1929 | 50.8 mm (2.0 in) |
| 1930 | 59.7 mm (2.4 in) |
| 1931 | 37.3 mm (1.5 in) |
| 1932 | 152.4 mm (6.0 in) |
| 1933 | 48.3 mm (1.9 in) |
| 1934 | 106.7 mm (4.2 in) |
| 1935 | 22.9 mm (0.9 in) |
| 1936 | 33.0 mm (1.3 in) |
| 1937 | 35.1 mm (1.4 in) |
| 1938 | 95.2 mm (3.7 in) |
| 1939 | 35.7 mm (1.4 in) |
| 1940 | 49.3 mm (1.9 in) |
| 1941 | 74.9 mm (2.9 in) |
| 1942 | 56.4 mm (2.2 in) |
| 1943 | 73.9 mm (2.9 in) |
| 1944 | 79.9 mm (3.1 in) |
| 1945 | 55.9 mm (2.2 in) |
| 1946 | 68.1 mm (2.7 in) |
| 1947 | 69.1 mm (2.7 in) |
| 1948 | 66.3 mm (2.6 in) |
| 1949 | 85.6 mm (3.4 in) |
| 1950 | 31.7 mm (1.2 in) |
| 1951 | 60.1 mm (2.4 in) |
| 1952 | 31.0 mm (1.2 in) |
| 1953 | 105.5 mm (4.2 in) |
| 1954 | 47.5 mm (1.9 in) |
| 1969 | n/a |
| 2013 | 62.2 mm (2.4 in) |
| 2014 | 71.3 mm (2.8 in) |
| 2015 | 41.4 mm (1.6 in) |
| 2016 | 31.2 mm (1.2 in) |
| 2017 | 50.7 mm (2.0 in) |
| 2018 | 36.0 mm (1.4 in) |
| 2019 | 24.1 mm (0.9 in) |
| 2020 | 33.3 mm (1.3 in) |
| 2021 | 53.9 mm (2.1 in) |
| 2022 | 51.4 mm (2.0 in) |
| 2023 | 56.4 mm (2.2 in) |
| 2024 | 46.7 mm (1.8 in) |
| 2025 | 38.1 mm (1.5 in) |
| 2026 | 77.7 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1898 | 26 days |
| 1899 | 26 days |
| 1900 | 26 days |
| 1901 | 32 days |
| 1902 | 39 days |
| 1903 | 22 days |
| 1904 | 41 days |
| 1905 | 33 days |
| 1906 | 26 days |
| 1907 | 61 days |
| 1908 | 23 days |
| 1909 | 29 days |
| 1910 | 32 days |
| 1911 | 14 days |
| 1912 | 18 days |
| 1913 | 35 days |
| 1914 | 35 days |
| 1915 | 31 days |
| 1916 | 21 days |
| 1917 | 32 days |
| 1918 | 22 days |
| 1919 | 28 days |
| 1920 | 38 days |
| 1921 | 39 days |
| 1922 | 25 days |
| 1923 | 24 days |
| 1924 | 15 days |
| 1925 | 19 days |
| 1926 | 17 days |
| 1927 | 20 days |
| 1928 | 29 days |
| 1929 | 27 days |
| 1930 | 49 days |
| 1931 | 45 days |
| 1932 | 34 days |
| 1933 | 56 days |
| 1934 | 38 days |
| 1935 | 62 days |
| 1936 | 32 days |
| 1937 | 58 days |
| 1938 | 39 days |
| 1939 | 78 days |
| 1940 | 33 days |
| 1941 | 42 days |
| 1942 | 36 days |
| 1943 | 26 days |
| 1944 | 34 days |
| 1945 | 31 days |
| 1946 | 27 days |
| 1947 | 31 days |
| 1948 | 31 days |
| 1949 | 40 days |
| 1950 | 39 days |
| 1951 | 29 days |
| 1952 | 25 days |
| 1953 | 48 days |
| 1954 | 23 days |
| 1969 | 1 day |
| 2013 | 23 days |
| 2014 | 16 days |
| 2015 | 29 days |
| 2016 | 41 days |
| 2017 | 30 days |
| 2018 | 25 days |
| 2019 | 28 days |
| 2020 | 40 days |
| 2021 | 45 days |
| 2022 | 27 days |
| 2023 | 67 days |
| 2024 | 35 days |
| 2025 | 41 days |
| 2026 | 25 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
37 years with a frostAcross 37 years with a frost, the median last spring frost at Adel falls on 13 June and the median first autumn frost on 23 August, which leaves a median of 74 days between them.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1915 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 June | n/a | 14 June | n/a | -0.2 days per decade |
| First autumn frost | 23 August | n/a | 22 August | n/a | +2.0 days per decade |
| Growing days | 74 days | n/a | 73 days | n/a | +2.3 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
55 years, 1899 to 2025A day with at least 39.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 100.8 mm (4.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 39.8 mm (1.6 in) | |
| 5 years | 56.3 mm (2.2 in) | |
| 10 years | 67.1 mm (2.6 in) | |
| 25 years | 80.8 mm (3.2 in) | |
| 50 years | 90.8 mm (3.6 in) | |
| 100 years | 100.8 mm (4.0 in) | Longer than the 55 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, 55 years of values from 1899 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: 94.0 mm (3.7 in) in 1907; 90.2 mm (3.6 in) in 1915; 88.9 mm (3.5 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 (2026-10-12).