Columbia Falls 5 SW Weather Records (USC00241919)
Record envelope, standing records and threshold days for Columbia Falls 5 SW (USC00241919), Montana, United States, with 57 years of record.
Key Facts for Columbia Falls 5 SW
- Columbia Falls 5 SW (USC00241919) is a weather station in Montana, United States at 48.32 latitude and -114.20 longitude, 939 m (3,081 ft) above sea level.
- The station reports from 1893 to 1949, 57 years of record.
- 1,464 records set at Columbia Falls 5 SW still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Columbia Falls 5 SW set a daily record high maximum temperature of 31.1 C (88.0 F) on 12 May 1949.
About the Station
- Location: Montana, United States, 48.32 latitude, -114.20 longitude.
- Elevation: 939 m (3,081 ft).
- Period of record: 1893 to 1949, 57 years.
- Eligible elements: tmax, tmin, prcp.
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 | 11.7 C (53.1 F) | -37.2 C (-35.0 F) | n/a | n/a |
| Feb | 15.6 C (60.1 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Mar | 20.6 C (69.1 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Apr | 28.9 C (84.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| May | 36.7 C (98.1 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 40.0 C (104.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Aug | 39.4 C (102.9 F) | -6.7 C (19.9 F) | n/a | n/a |
| Sep | 35.0 C (95.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Oct | 29.4 C (84.9 F) | -17.8 C (0.0 F) | n/a | n/a |
| Nov | 18.9 C (66.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 13.3 C (55.9 F) | -33.9 C (-29.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 5 |
| 1894 | 16 |
| 1895 | 33 |
| 1896 | 27 |
| 1897 | 28 |
| 1898 | 13 |
| 1899 | 28 |
| 1900 | 36 |
| 1901 | 20 |
| 1902 | 30 |
| 1903 | 27 |
| 1904 | 28 |
| 1905 | 39 |
| 1906 | 30 |
| 1907 | 35 |
| 1908 | 33 |
| 1909 | 34 |
| 1910 | 28 |
| 1911 | 34 |
| 1912 | 25 |
| 1913 | 21 |
| 1914 | 19 |
| 1915 | 10 |
| 1916 | 34 |
| 1917 | 25 |
| 1918 | 35 |
| 1919 | 78 |
| 1920 | 26 |
| 1921 | 12 |
| 1922 | 38 |
| 1923 | 17 |
| 1924 | 43 |
| 1925 | 16 |
| 1926 | 41 |
| 1927 | 21 |
| 1928 | 17 |
| 1929 | 24 |
| 1930 | 24 |
| 1931 | 18 |
| 1932 | 26 |
| 1933 | 24 |
| 1934 | 46 |
| 1935 | 30 |
| 1936 | 63 |
| 1937 | 23 |
| 1938 | 28 |
| 1939 | 34 |
| 1940 | 16 |
| 1941 | 19 |
| 1942 | 10 |
| 1943 | 18 |
| 1944 | 10 |
| 1945 | 8 |
| 1946 | 7 |
| 1947 | 10 |
| 1948 | 12 |
| 1949 | 12 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1924-06-07 | Record daily precipitation | Record daily precipitation 85.3 mm (3.4 in) |
| 1930-08-09 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 1930-08-09 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 1933-02-09 | Record low minimum temperature | Record low minimum temperature -37.8 C (-36.0 F) |
| 1940-07-12 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
Wettest Day of Each Month
Jun: 85.3 mm (3.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 29.5 mm (1.2 in) | 24 January 1905 |
| Feb | 43.4 mm (1.7 in) | 16 February 1904 |
| Mar | 76.2 mm (3.0 in) | 23 March 1904 |
| Apr | 33.0 mm (1.3 in) | 25 April 1936 |
| May | 51.8 mm (2.0 in) | 18 May 1902 |
| Jun | 85.3 mm (3.4 in) | 7 June 1924 |
| Jul | 36.1 mm (1.4 in) | 27 July 1940 |
| Aug | 51.3 mm (2.0 in) | 22 August 1947 |
| Sep | 34.8 mm (1.4 in) | 3 September 1916 |
| Oct | 43.4 mm (1.7 in) | 4 October 1914 |
| Nov | 38.1 mm (1.5 in) | 21 November 1926 |
| Dec | 29.5 mm (1.2 in) | 9 December 1902 |
Period of Record Coverage
1893 to 1949| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 58 | 16% | No |
| 1894 | 214 | 59% | No |
| 1895 | 360 | 99% | Yes |
| 1896 | 268 | 73% | No |
| 1897 | 325 | 89% | No |
| 1898 | 238 | 65% | No |
| 1899 | 193 | 53% | No |
| 1900 | 348 | 95% | Yes |
| 1901 | 310 | 85% | No |
| 1902 | 359 | 98% | Yes |
| 1903 | 362 | 99% | Yes |
| 1904 | 334 | 91% | Yes |
| 1905 | 355 | 97% | Yes |
| 1906 | 358 | 98% | Yes |
| 1907 | 363 | 99% | Yes |
| 1908 | 362 | 99% | Yes |
| 1909 | 355 | 97% | Yes |
| 1910 | 241 | 66% | No |
| 1911 | 324 | 89% | No |
| 1912 | 363 | 99% | Yes |
| 1913 | 362 | 99% | Yes |
| 1914 | 360 | 99% | Yes |
| 1915 | 362 | 99% | Yes |
| 1916 | 363 | 99% | Yes |
| 1917 | 361 | 99% | Yes |
| 1918 | 364 | 100% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 227 | 62% | No |
| 1922 | 363 | 99% | Yes |
| 1923 | 362 | 99% | Yes |
| 1924 | 363 | 99% | Yes |
| 1925 | 270 | 74% | No |
| 1926 | 359 | 98% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 361 | 99% | Yes |
| 1929 | 359 | 98% | Yes |
| 1930 | 324 | 89% | No |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 359 | 98% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 360 | 99% | Yes |
| 1938 | 355 | 97% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 363 | 99% | Yes |
| 1941 | 358 | 98% | Yes |
| 1942 | 361 | 99% | Yes |
| 1943 | 304 | 83% | No |
| 1944 | 305 | 83% | No |
| 1945 | 292 | 80% | No |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 151 | 41% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 May 1949 | Columbia Falls 5 SW, US | daily high max | 31.1 C (88.0 F) | 3.3 C (5.9 F) | 51 years | 26 of 100 (Routine) |
| 11 May 1949 | Columbia Falls 5 SW, US | daily high max | 32.2 C (90.0 F) | 3.3 C (5.9 F) | 24 years | 18 of 100 (Routine) |
| 10 May 1949 | Columbia Falls 5 SW, US | daily high max | 30.6 C (87.1 F) | 1.7 C (3.1 F) | 8 years | 10 of 100 (Routine) |
| 9 May 1949 | Columbia Falls 5 SW, US | daily high max | 30.0 C (86.0 F) | 1.7 C (3.1 F) | 43 years | 20 of 100 (Routine) |
| 8 May 1949 | Columbia Falls 5 SW, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 2 years | 5 of 100 (Routine) |
| 8 April 1949 | Columbia Falls 5 SW, US | daily high min | 6.7 C (44.1 F) | 0.6 C (1.1 F) | 53 years | 22 of 100 (Routine) |
| 5 April 1949 | Columbia Falls 5 SW, US | daily high min | 5.0 C (41.0 F) | 1.1 C (2.0 F) | 11 years | 10 of 100 (Routine) |
| 16 March 1949 | Columbia Falls 5 SW, US | daily low max (Tie) | -2.2 C (28.0 F) | tie | 47 years | 4 of 100 (Routine) |
| 7 March 1949 | Columbia Falls 5 SW, US | daily high min (Tie) | 2.2 C (36.0 F) | tie | 48 years | 4 of 100 (Routine) |
| 23 February 1949 | Columbia Falls 5 SW, US | daily high min (Tie) | 1.7 C (35.1 F) | tie | 24 years | 3 of 100 (Routine) |
| 25 January 1949 | Columbia Falls 5 SW, US | daily low min | -31.1 C (-24.0 F) | 1.7 C (3.1 F) | 19 years | 12 of 100 (Routine) |
| 24 January 1949 | Columbia Falls 5 SW, US | daily low max | -15.0 C (5.0 F) | 1.7 C (3.1 F) | 20 years | 13 of 100 (Routine) |
| 23 January 1949 | Columbia Falls 5 SW, US | daily low max | -12.8 C (9.0 F) | 0.6 C (1.1 F) | 20 years | 11 of 100 (Routine) |
| 10 January 1949 | Columbia Falls 5 SW, US | daily low min | -28.9 C (-20.0 F) | 3.9 C (7.0 F) | 40 years | 22 of 100 (Routine) |
| 10 January 1949 | Columbia Falls 5 SW, US | daily low max | -16.1 C (3.0 F) | 1.7 C (3.1 F) | 37 years | 18 of 100 (Routine) |
| 24 December 1948 | Columbia Falls 5 SW, US | daily low max | -13.3 C (8.1 F) | 3.9 C (7.0 F) | 32 years | 21 of 100 (Routine) |
| 24 December 1948 | Columbia Falls 5 SW, US | daily low min | -21.1 C (-6.0 F) | 1.1 C (2.0 F) | 52 years | 21 of 100 (Routine) |
| 24 November 1948 | Columbia Falls 5 SW, US | daily rain | 13.0 mm (0.5 in) | 1.6 mm (0.06 in) | 33 years | 16 of 100 (Routine) |
| 13 October 1948 | Columbia Falls 5 SW, US | daily high max (Tie) | 23.9 C (75.0 F) | tie | 3 years | 1 of 100 (Routine) |
| 3 September 1948 | Columbia Falls 5 SW, US | daily high min (Tie) | 14.4 C (57.9 F) | tie | 10 years | 2 of 100 (Routine) |
Climate Trend
37 complete years, 1902 to 1948| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1902 | 5.4 C | -1.13 C |
| 1903 | 5.2 C | -1.26 C |
| 1905 | 5.7 C | -0.85 C |
| 1906 | 6.4 C | -0.14 C |
| 1907 | 5.2 C | -1.33 C |
| 1908 | 6.4 C | -0.14 C |
| 1909 | 5.8 C | -0.72 C |
| 1912 | 5.4 C | -1.06 C |
| 1913 | 5.5 C | -1.02 C |
| 1914 | 6.9 C | +0.35 C |
| 1915 | 7.0 C | +0.48 C |
| 1916 | 3.9 C | -2.58 C |
| 1917 | 5.8 C | -0.68 C |
| 1918 | 6.5 C | +0.04 C |
| 1919 | 5.8 C | -0.75 C |
| 1920 | 7.0 C | +0.48 C |
| 1922 | 6.3 C | -0.25 C |
| 1923 | 7.3 C | +0.81 C |
| 1924 | 6.8 C | +0.30 C |
| 1926 | 8.1 C | +1.56 C |
| 1927 | 6.5 C | +0.00 C |
| 1928 | 7.0 C | +0.54 C |
| 1929 | 6.2 C | -0.31 C |
| 1931 | 7.3 C | +0.77 C |
| 1932 | 6.2 C | -0.26 C |
| 1933 | 6.8 C | +0.34 C |
| 1934 | 8.9 C | +2.40 C |
| 1935 | 6.4 C | -0.15 C |
| 1936 | 6.6 C | +0.08 C |
| 1937 | 5.7 C | -0.76 C |
| 1938 | 8.0 C | +1.50 C |
| 1940 | 8.5 C | +1.97 C |
| 1941 | 8.0 C | +1.54 C |
| 1942 | 6.4 C | -0.08 C |
| 1946 | 6.8 C | +0.26 C |
| 1947 | 6.9 C | +0.38 C |
| 1948 | 6.0 C | -0.49 C |
The annual mean temperature here has risen by 0.4 C (0.2 to 0.6) per decade over 1902 to 1948. In Fahrenheit: 0.7 F (0.3 to 1.1) 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 | 0.4 C (0.2 to 0.6) per decade | 0.7 F (0.3 to 1.1) per decade | 1902 to 1948 | 37 | Rise |
| Mean daily maximum | 0.25 C (0.02 to 0.48) per decade | 0.44 F (0.03 to 0.86) per decade | 1902 to 1948 | 37 | Rise |
| Mean daily minimum | 0.5 C (0.3 to 0.8) per decade | 1.0 F (0.5 to 1.4) per decade | 1902 to 1948 | 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
1893 to 1949| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1940 | 36.1 C (97.0 F) | 57 |
| Coldest night (TNn) | -37.8 C (-36.0 F) | 1933 | -27.8 C (-18.0 F) | 57 |
| Wettest day (Rx1day) | 85.3 mm (3.4 in) | 1924 | 28.4 mm (1.1 in) | 57 |
| Wettest five days (Rx5day) | 110.7 mm (4.4 in) | 1924 | 47.8 mm (1.9 in) | 57 |
| Longest dry spell (CDD) | 51 days | 1907 | 26 days | 57 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 20.0 C (68.0 F) |
| 1894 | 34.4 C (93.9 F) |
| 1895 | 36.1 C (97.0 F) |
| 1896 | 37.8 C (100.0 F) |
| 1897 | 35.0 C (95.0 F) |
| 1898 | 35.0 C (95.0 F) |
| 1899 | 34.4 C (93.9 F) |
| 1900 | 35.0 C (95.0 F) |
| 1901 | 35.0 C (95.0 F) |
| 1902 | 32.8 C (91.0 F) |
| 1903 | 33.9 C (93.0 F) |
| 1904 | 35.0 C (95.0 F) |
| 1905 | 35.6 C (96.1 F) |
| 1906 | 36.1 C (97.0 F) |
| 1907 | 32.8 C (91.0 F) |
| 1908 | 38.9 C (102.0 F) |
| 1909 | 35.6 C (96.1 F) |
| 1910 | 38.3 C (100.9 F) |
| 1911 | 35.0 C (95.0 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 38.3 C (100.9 F) |
| 1915 | 36.1 C (97.0 F) |
| 1916 | 34.4 C (93.9 F) |
| 1917 | 37.2 C (99.0 F) |
| 1918 | 36.7 C (98.1 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 38.3 C (100.9 F) |
| 1921 | 27.2 C (81.0 F) |
| 1922 | 36.1 C (97.0 F) |
| 1923 | 36.1 C (97.0 F) |
| 1924 | 37.2 C (99.0 F) |
| 1925 | 35.0 C (95.0 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 37.2 C (99.0 F) |
| 1929 | 36.1 C (97.0 F) |
| 1930 | 39.4 C (102.9 F) |
| 1931 | 35.6 C (96.1 F) |
| 1932 | 35.0 C (95.0 F) |
| 1933 | 35.6 C (96.1 F) |
| 1934 | 37.8 C (100.0 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 37.8 C (100.0 F) |
| 1937 | 35.6 C (96.1 F) |
| 1938 | 37.8 C (100.0 F) |
| 1939 | 37.2 C (99.0 F) |
| 1940 | 40.0 C (104.0 F) |
| 1941 | 38.9 C (102.0 F) |
| 1942 | 34.4 C (93.9 F) |
| 1943 | 34.4 C (93.9 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 37.8 C (100.0 F) |
| 1946 | 37.2 C (99.0 F) |
| 1947 | 36.7 C (98.1 F) |
| 1948 | 32.2 C (90.0 F) |
| 1949 | 32.2 C (90.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -23.3 C (-9.9 F) |
| 1894 | -27.2 C (-17.0 F) |
| 1895 | -28.9 C (-20.0 F) |
| 1896 | -24.4 C (-11.9 F) |
| 1897 | -25.6 C (-14.1 F) |
| 1898 | -25.6 C (-14.1 F) |
| 1899 | -32.8 C (-27.0 F) |
| 1900 | -26.7 C (-16.1 F) |
| 1901 | -22.2 C (-8.0 F) |
| 1902 | -29.4 C (-20.9 F) |
| 1903 | -21.7 C (-7.1 F) |
| 1904 | -22.8 C (-9.0 F) |
| 1905 | -37.2 C (-35.0 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -31.7 C (-25.1 F) |
| 1908 | -30.0 C (-22.0 F) |
| 1909 | -37.2 C (-35.0 F) |
| 1910 | -29.4 C (-20.9 F) |
| 1911 | -25.0 C (-13.0 F) |
| 1912 | -30.6 C (-23.1 F) |
| 1913 | -26.1 C (-15.0 F) |
| 1914 | -28.9 C (-20.0 F) |
| 1915 | -30.6 C (-23.1 F) |
| 1916 | -32.8 C (-27.0 F) |
| 1917 | -27.8 C (-18.0 F) |
| 1918 | -29.4 C (-20.9 F) |
| 1919 | -31.1 C (-24.0 F) |
| 1920 | -21.7 C (-7.1 F) |
| 1921 | -23.3 C (-9.9 F) |
| 1922 | -31.7 C (-25.1 F) |
| 1923 | -32.8 C (-27.0 F) |
| 1924 | -33.9 C (-29.0 F) |
| 1925 | -13.9 C (7.0 F) |
| 1926 | -23.9 C (-11.0 F) |
| 1927 | -28.9 C (-20.0 F) |
| 1928 | -28.9 C (-20.0 F) |
| 1929 | -31.7 C (-25.1 F) |
| 1930 | -30.0 C (-22.0 F) |
| 1931 | -20.6 C (-5.1 F) |
| 1932 | -25.6 C (-14.1 F) |
| 1933 | -37.8 C (-36.0 F) |
| 1934 | -18.3 C (-0.9 F) |
| 1935 | -30.6 C (-23.1 F) |
| 1936 | -37.8 C (-36.0 F) |
| 1937 | -33.9 C (-29.0 F) |
| 1938 | -23.3 C (-9.9 F) |
| 1939 | -29.4 C (-20.9 F) |
| 1940 | -20.6 C (-5.1 F) |
| 1941 | -23.3 C (-9.9 F) |
| 1942 | -25.0 C (-13.0 F) |
| 1943 | -36.7 C (-34.1 F) |
| 1944 | -16.7 C (1.9 F) |
| 1945 | -18.9 C (-2.0 F) |
| 1946 | -23.3 C (-9.9 F) |
| 1947 | -22.8 C (-9.0 F) |
| 1948 | -22.2 C (-8.0 F) |
| 1949 | -31.1 C (-24.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 15.5 mm (0.6 in) |
| 1894 | 18.0 mm (0.7 in) |
| 1895 | 30.5 mm (1.2 in) |
| 1896 | 27.4 mm (1.1 in) |
| 1897 | 50.8 mm (2.0 in) |
| 1898 | 29.2 mm (1.1 in) |
| 1899 | 31.5 mm (1.2 in) |
| 1900 | 35.6 mm (1.4 in) |
| 1901 | 25.9 mm (1.0 in) |
| 1902 | 51.8 mm (2.0 in) |
| 1903 | 35.6 mm (1.4 in) |
| 1904 | 76.2 mm (3.0 in) |
| 1905 | 29.5 mm (1.2 in) |
| 1906 | 30.5 mm (1.2 in) |
| 1907 | 25.7 mm (1.0 in) |
| 1908 | 38.4 mm (1.5 in) |
| 1909 | 38.9 mm (1.5 in) |
| 1910 | 25.9 mm (1.0 in) |
| 1911 | 50.8 mm (2.0 in) |
| 1912 | 22.9 mm (0.9 in) |
| 1913 | 28.4 mm (1.1 in) |
| 1914 | 43.4 mm (1.7 in) |
| 1915 | 27.2 mm (1.1 in) |
| 1916 | 35.6 mm (1.4 in) |
| 1917 | 26.4 mm (1.0 in) |
| 1918 | 26.7 mm (1.1 in) |
| 1919 | 33.0 mm (1.3 in) |
| 1920 | 19.8 mm (0.8 in) |
| 1921 | 22.4 mm (0.9 in) |
| 1922 | 32.0 mm (1.3 in) |
| 1923 | 19.1 mm (0.8 in) |
| 1924 | 85.3 mm (3.4 in) |
| 1925 | 25.4 mm (1.0 in) |
| 1926 | 42.4 mm (1.7 in) |
| 1927 | 32.8 mm (1.3 in) |
| 1928 | 23.1 mm (0.9 in) |
| 1929 | 26.4 mm (1.0 in) |
| 1930 | 33.0 mm (1.3 in) |
| 1931 | 24.9 mm (1.0 in) |
| 1932 | 19.1 mm (0.8 in) |
| 1933 | 20.3 mm (0.8 in) |
| 1934 | 27.9 mm (1.1 in) |
| 1935 | 27.9 mm (1.1 in) |
| 1936 | 33.0 mm (1.3 in) |
| 1937 | 27.7 mm (1.1 in) |
| 1938 | 24.9 mm (1.0 in) |
| 1939 | 28.4 mm (1.1 in) |
| 1940 | 36.1 mm (1.4 in) |
| 1941 | 18.0 mm (0.7 in) |
| 1942 | 34.5 mm (1.4 in) |
| 1943 | 30.5 mm (1.2 in) |
| 1944 | 17.5 mm (0.7 in) |
| 1945 | 24.4 mm (1.0 in) |
| 1946 | 31.0 mm (1.2 in) |
| 1947 | 51.3 mm (2.0 in) |
| 1948 | 24.9 mm (1.0 in) |
| 1949 | 16.5 mm (0.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 30.5 mm (1.2 in) |
| 1894 | 46.7 mm (1.8 in) |
| 1895 | 50.4 mm (2.0 in) |
| 1896 | 41.2 mm (1.6 in) |
| 1897 | 88.9 mm (3.5 in) |
| 1898 | 40.7 mm (1.6 in) |
| 1899 | 43.2 mm (1.7 in) |
| 1900 | 83.9 mm (3.3 in) |
| 1901 | 43.3 mm (1.7 in) |
| 1902 | 92.0 mm (3.6 in) |
| 1903 | 44.5 mm (1.8 in) |
| 1904 | 76.2 mm (3.0 in) |
| 1905 | 46.3 mm (1.8 in) |
| 1906 | 46.8 mm (1.8 in) |
| 1907 | 49.9 mm (2.0 in) |
| 1908 | 76.4 mm (3.0 in) |
| 1909 | 75.7 mm (3.0 in) |
| 1910 | 45.1 mm (1.8 in) |
| 1911 | 67.1 mm (2.6 in) |
| 1912 | 54.1 mm (2.1 in) |
| 1913 | 48.0 mm (1.9 in) |
| 1914 | 85.4 mm (3.4 in) |
| 1915 | 42.2 mm (1.7 in) |
| 1916 | 64.3 mm (2.5 in) |
| 1917 | 62.0 mm (2.4 in) |
| 1918 | 47.5 mm (1.9 in) |
| 1919 | 51.8 mm (2.0 in) |
| 1920 | 33.7 mm (1.3 in) |
| 1921 | 31.9 mm (1.3 in) |
| 1922 | 32.0 mm (1.3 in) |
| 1923 | 37.3 mm (1.5 in) |
| 1924 | 110.7 mm (4.4 in) |
| 1925 | 57.4 mm (2.3 in) |
| 1926 | 76.9 mm (3.0 in) |
| 1927 | 47.8 mm (1.9 in) |
| 1928 | 49.5 mm (1.9 in) |
| 1929 | 26.4 mm (1.0 in) |
| 1930 | 66.3 mm (2.6 in) |
| 1931 | 33.6 mm (1.3 in) |
| 1932 | 43.6 mm (1.7 in) |
| 1933 | 55.7 mm (2.2 in) |
| 1934 | 56.7 mm (2.2 in) |
| 1935 | 44.0 mm (1.7 in) |
| 1936 | 39.1 mm (1.5 in) |
| 1937 | 35.3 mm (1.4 in) |
| 1938 | 36.3 mm (1.4 in) |
| 1939 | 55.8 mm (2.2 in) |
| 1940 | 48.5 mm (1.9 in) |
| 1941 | 37.1 mm (1.5 in) |
| 1942 | 53.1 mm (2.1 in) |
| 1943 | 48.1 mm (1.9 in) |
| 1944 | 28.2 mm (1.1 in) |
| 1945 | 36.3 mm (1.4 in) |
| 1946 | 54.6 mm (2.1 in) |
| 1947 | 82.8 mm (3.3 in) |
| 1948 | 46.3 mm (1.8 in) |
| 1949 | 21.1 mm (0.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 8 days |
| 1894 | 23 days |
| 1895 | 23 days |
| 1896 | 37 days |
| 1897 | 32 days |
| 1898 | 26 days |
| 1899 | 17 days |
| 1900 | 32 days |
| 1901 | 22 days |
| 1902 | 37 days |
| 1903 | 33 days |
| 1904 | 23 days |
| 1905 | 34 days |
| 1906 | 21 days |
| 1907 | 51 days |
| 1908 | 26 days |
| 1909 | 29 days |
| 1910 | 40 days |
| 1911 | 29 days |
| 1912 | 18 days |
| 1913 | 28 days |
| 1914 | 19 days |
| 1915 | 15 days |
| 1916 | 18 days |
| 1917 | 32 days |
| 1918 | 27 days |
| 1919 | 26 days |
| 1920 | 29 days |
| 1921 | 14 days |
| 1922 | 26 days |
| 1923 | 26 days |
| 1924 | 24 days |
| 1925 | 24 days |
| 1926 | 45 days |
| 1927 | 27 days |
| 1928 | 33 days |
| 1929 | 30 days |
| 1930 | 27 days |
| 1931 | 39 days |
| 1932 | 26 days |
| 1933 | 23 days |
| 1934 | 42 days |
| 1935 | 26 days |
| 1936 | 19 days |
| 1937 | 31 days |
| 1938 | 21 days |
| 1939 | 47 days |
| 1940 | 34 days |
| 1941 | 33 days |
| 1942 | 16 days |
| 1943 | 37 days |
| 1944 | 29 days |
| 1945 | 25 days |
| 1946 | 23 days |
| 1947 | 20 days |
| 1948 | 31 days |
| 1949 | 16 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 Columbia Falls 5 SW falls on 31 May and the median first autumn frost on 9 September, which leaves a median of 87 days between them.
Fitted over all years, the growing season changes by +15.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1912 to 1948) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 31 May | n/a | 31 May | n/a | -6.1 days per decade |
| First autumn frost | 9 September | n/a | 13 September | n/a | +8.9 days per decade |
| Growing days | 87 days | n/a | 99 days | n/a | +15.0 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
46 years, 1895 to 1948A day with at least 29.8 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 87.1 mm (3.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 29.8 mm (1.2 in) | |
| 5 years | 39.9 mm (1.6 in) | |
| 10 years | 48.3 mm (1.9 in) | |
| 25 years | 61.3 mm (2.4 in) | |
| 50 years | 73.2 mm (2.9 in) | Longer than the 46 years of record |
| 100 years | 87.1 mm (3.4 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 1948.
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: 85.3 mm (3.4 in) in 1924; 76.2 mm (3.0 in) in 1904; 51.8 mm (2.0 in) in 1902.
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).