Princeton Weather Records (CA001126505)
Record envelope, standing records and threshold days for Princeton (CA001126505), British Columbia, Canada, with 50 years of record.
Key Facts for Princeton
- Princeton (CA001126505) is a weather station in British Columbia, Canada at 49.43 latitude and -120.50 longitude, 633 m (2,077 ft) above sea level.
- The station reports from 1893 to 1942, 50 years of record.
- 1,464 records set at Princeton still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Princeton set a daily record high minimum temperature of 11.1 C (52.0 F) on 25 May 1942.
About the Station
- Location: British Columbia, Canada, 49.43 latitude, -120.50 longitude.
- Elevation: 633 m (2,077 ft).
- Period of record: 1893 to 1942, 50 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 | 9.4 C (48.9 F) | -45.0 C (-49.0 F) | n/a | n/a |
| Feb | 18.3 C (64.9 F) | -41.7 C (-43.1 F) | n/a | n/a |
| Mar | 23.3 C (73.9 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Apr | 31.7 C (89.1 F) | -13.9 C (7.0 F) | n/a | n/a |
| May | 35.0 C (95.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 36.7 C (98.1 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jul | 39.4 C (102.9 F) | -0.6 C (30.9 F) | n/a | n/a |
| Aug | 38.3 C (100.9 F) | -4.4 C (24.1 F) | n/a | n/a |
| Sep | 33.3 C (91.9 F) | -10.6 C (12.9 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -18.3 C (-0.9 F) | n/a | n/a |
| Nov | 25.6 C (78.1 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Dec | 13.9 C (57.0 F) | -40.0 C (-40.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 46 |
| 1894 | 32 |
| 1895 | 78 |
| 1896 | 39 |
| 1897 | 48 |
| 1898 | 34 |
| 1899 | 13 |
| 1901 | 31 |
| 1902 | 24 |
| 1903 | 41 |
| 1904 | 36 |
| 1905 | 38 |
| 1906 | 34 |
| 1907 | 29 |
| 1908 | 20 |
| 1909 | 39 |
| 1910 | 24 |
| 1911 | 22 |
| 1912 | 28 |
| 1913 | 30 |
| 1914 | 20 |
| 1915 | 24 |
| 1916 | 36 |
| 1917 | 24 |
| 1918 | 36 |
| 1919 | 35 |
| 1920 | 27 |
| 1921 | 19 |
| 1922 | 38 |
| 1923 | 27 |
| 1924 | 38 |
| 1925 | 20 |
| 1926 | 26 |
| 1927 | 25 |
| 1928 | 18 |
| 1929 | 25 |
| 1930 | 27 |
| 1931 | 20 |
| 1932 | 27 |
| 1933 | 20 |
| 1934 | 21 |
| 1935 | 35 |
| 1936 | 53 |
| 1937 | 18 |
| 1938 | 20 |
| 1939 | 30 |
| 1940 | 25 |
| 1941 | 38 |
| 1942 | 6 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1935-01-21 | Record daily snowfall | Record daily snowfall 111.8 cm (44.0 in) |
| 1941-07-16 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1941-07-17 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
Wettest Day of Each Month
Jan: 50.8 mm (2.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 50.8 mm (2.0 in) | 13 January 1894 |
| Feb | 23.6 mm (0.9 in) | 7 February 1916 |
| Mar | 31.8 mm (1.3 in) | 5 March 1932 |
| Apr | 25.4 mm (1.0 in) | 10 April 1895 |
| May | 25.4 mm (1.0 in) | 15 May 1894 |
| Jun | 25.4 mm (1.0 in) | 30 June 1897 |
| Jul | 27.4 mm (1.1 in) | 13 July 1915 |
| Aug | 27.7 mm (1.1 in) | 15 August 1912 |
| Sep | 40.6 mm (1.6 in) | 19 September 1898 |
| Oct | 25.4 mm (1.0 in) | 29 October 1896 |
| Nov | 47.0 mm (1.9 in) | 30 November 1902 |
| Dec | 35.6 mm (1.4 in) | 28 December 1937 |
Period of Record Coverage
1893 to 1942| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 183 | 50% | No |
| 1894 | 321 | 88% | No |
| 1895 | 333 | 91% | Yes |
| 1896 | 324 | 89% | No |
| 1897 | 335 | 92% | Yes |
| 1898 | 264 | 72% | No |
| 1899 | 61 | 17% | No |
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 366 | 100% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 151 | 41% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 25 May 1942 | Princeton, CA | daily high min | 11.1 C (52.0 F) | 2.8 C (5.0 F) | 23 years | 18 of 100 (Routine) |
| 24 May 1942 | Princeton, CA | daily high min | 11.1 C (52.0 F) | 2.2 C (4.0 F) | 27 years | 19 of 100 (Routine) |
| 22 May 1942 | Princeton, CA | daily high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 13 years | 10 of 100 (Routine) |
| 16 May 1942 | Princeton, CA | daily low min | -2.8 C (27.0 F) | 0.6 C (1.1 F) | 8 years | 8 of 100 (Routine) |
| 13 May 1942 | Princeton, CA | daily high min (Tie) | 6.7 C (44.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 11 May 1942 | Princeton, CA | daily low max | 7.8 C (46.0 F) | 6.1 C (11.0 F) | 25 years | 24 of 100 (Routine) |
| 9 May 1942 | Princeton, CA | daily rain | 21.1 mm (0.8 in) | 5.6 mm (0.22 in) | 28 years | 20 of 100 (Routine) |
| 25 April 1942 | Princeton, CA | daily low max (Tie) | 11.7 C (53.1 F) | tie | 20 years | 2 of 100 (Routine) |
| 14 April 1942 | Princeton, CA | daily rain | 13.2 mm (0.5 in) | 1.3 mm (0.05 in) | 20 years | 15 of 100 (Routine) |
| 5 March 1942 | Princeton, CA | daily high min | 0.6 C (33.1 F) | 0.6 C (1.1 F) | 12 years | 9 of 100 (Routine) |
| 15 December 1941 | Princeton, CA | daily high max (Tie) | 3.3 C (37.9 F) | tie | 2 years | 1 of 100 (Routine) |
| 2 December 1941 | Princeton, CA | daily high min | 1.1 C (34.0 F) | 0.5 C (0.9 F) | 14 years | 8 of 100 (Routine) |
| 23 November 1941 | Princeton, CA | daily rain | 16.0 mm (0.6 in) | 4.6 mm (0.18 in) | 32 years | 20 of 100 (Routine) |
| 13 November 1941 | Princeton, CA | daily high min (Tie) | 2.2 C (36.0 F) | tie | 24 years | 2 of 100 (Routine) |
| 16 October 1941 | Princeton, CA | daily high min | 5.6 C (42.1 F) | 0.6 C (1.1 F) | 27 years | 13 of 100 (Routine) |
| 14 October 1941 | Princeton, CA | daily high min (Tie) | 6.1 C (43.0 F) | tie | 31 years | 3 of 100 (Routine) |
| 3 October 1941 | Princeton, CA | daily rain | 8.9 mm (0.35 in) | 0.8 mm (0.03 in) | 36 years | 15 of 100 (Routine) |
| 2 October 1941 | Princeton, CA | daily low max (Tie) | 9.4 C (48.9 F) | tie | 38 years | 3 of 100 (Routine) |
| 28 September 1941 | Princeton, CA | daily low max | 8.9 C (48.0 F) | 3.3 C (5.9 F) | 42 years | 22 of 100 (Routine) |
| 19 September 1941 | Princeton, CA | daily low max (Tie) | 11.1 C (52.0 F) | tie | 8 years | 1 of 100 (Routine) |
Climate Trend
40 complete years, 1901 to 1941| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1901 | 6.4 C | +0.86 C |
| 1902 | 5.1 C | -0.46 C |
| 1903 | 4.6 C | -1.00 C |
| 1904 | 5.9 C | +0.31 C |
| 1905 | 5.6 C | 0.00 C |
| 1906 | 6.6 C | +1.01 C |
| 1907 | 4.8 C | -0.78 C |
| 1908 | 5.3 C | -0.29 C |
| 1909 | 3.9 C | -1.68 C |
| 1910 | 5.3 C | -0.26 C |
| 1911 | 4.2 C | -1.32 C |
| 1913 | 4.5 C | -1.04 C |
| 1914 | 6.0 C | +0.41 C |
| 1915 | 6.2 C | +0.63 C |
| 1916 | 3.5 C | -2.02 C |
| 1917 | 5.4 C | -0.21 C |
| 1918 | 6.1 C | +0.52 C |
| 1919 | 4.6 C | -0.94 C |
| 1920 | 5.7 C | +0.16 C |
| 1921 | 5.1 C | -0.48 C |
| 1922 | 4.4 C | -1.13 C |
| 1923 | 5.8 C | +0.25 C |
| 1924 | 5.6 C | -0.01 C |
| 1925 | 6.8 C | +1.27 C |
| 1926 | 6.8 C | +1.26 C |
| 1927 | 4.8 C | -0.72 C |
| 1928 | 6.1 C | +0.55 C |
| 1929 | 4.8 C | -0.76 C |
| 1930 | 5.0 C | -0.57 C |
| 1931 | 6.4 C | +0.87 C |
| 1932 | 5.4 C | -0.13 C |
| 1933 | 5.5 C | -0.07 C |
| 1934 | 6.9 C | +1.35 C |
| 1935 | 5.2 C | -0.34 C |
| 1936 | 5.3 C | -0.23 C |
| 1937 | 5.0 C | -0.54 C |
| 1938 | 6.3 C | +0.71 C |
| 1939 | 7.0 C | +1.40 C |
| 1940 | 7.4 C | +1.86 C |
| 1941 | 7.3 C | +1.74 C |
The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1901 to 1941. In Fahrenheit: 0.5 F (0.1 to 1.0) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.1 to 0.5) per decade | 0.5 F (0.1 to 1.0) per decade | 1901 to 1941 | 40 | Rise |
| Mean daily maximum | 0.3 C (0.1 to 0.6) per decade | 0.6 F (0.2 to 1.0) per decade | 1901 to 1941 | 40 | Rise |
| Mean daily minimum | 0.25 C (-0.01 to 0.50) per decade | 0.44 F (-0.02 to 0.90) per decade | 1901 to 1941 | 40 | 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
1893 to 1942| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 1941 | 35.6 C (96.1 F) | 49 |
| Coldest night (TNn) | -45.0 C (-49.0 F) | 1909 | -31.7 C (-25.1 F) | 49 |
| Wettest day (Rx1day) | 50.8 mm (2.0 in) | 1894 | 22.4 mm (0.9 in) | 49 |
| Wettest five days (Rx5day) | 73.7 mm (2.9 in) | 1937 | 37.4 mm (1.5 in) | 49 |
| Longest dry spell (CDD) | 56 days | 1901 | 28 days | 49 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 35.0 C (95.0 F) |
| 1894 | 32.8 C (91.0 F) |
| 1895 | 36.7 C (98.1 F) |
| 1896 | 37.8 C (100.0 F) |
| 1897 | 38.3 C (100.9 F) |
| 1898 | 37.8 C (100.0 F) |
| 1899 | 15.0 C (59.0 F) |
| 1901 | 35.0 C (95.0 F) |
| 1902 | 33.3 C (91.9 F) |
| 1903 | 35.0 C (95.0 F) |
| 1904 | 38.3 C (100.9 F) |
| 1905 | 36.7 C (98.1 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 35.0 C (95.0 F) |
| 1908 | 37.2 C (99.0 F) |
| 1909 | 32.8 C (91.0 F) |
| 1910 | 33.9 C (93.0 F) |
| 1911 | 36.7 C (98.1 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 35.0 C (95.0 F) |
| 1915 | 35.0 C (95.0 F) |
| 1916 | 33.3 C (91.9 F) |
| 1917 | 36.1 C (97.0 F) |
| 1918 | 36.7 C (98.1 F) |
| 1919 | 35.6 C (96.1 F) |
| 1920 | 35.6 C (96.1 F) |
| 1921 | 33.3 C (91.9 F) |
| 1922 | 35.0 C (95.0 F) |
| 1923 | 34.4 C (93.9 F) |
| 1924 | 35.6 C (96.1 F) |
| 1925 | 35.6 C (96.1 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 37.8 C (100.0 F) |
| 1929 | 34.4 C (93.9 F) |
| 1930 | 36.1 C (97.0 F) |
| 1931 | 37.2 C (99.0 F) |
| 1932 | 35.6 C (96.1 F) |
| 1933 | 36.7 C (98.1 F) |
| 1934 | 37.8 C (100.0 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 35.0 C (95.0 F) |
| 1937 | 34.4 C (93.9 F) |
| 1938 | 36.1 C (97.0 F) |
| 1939 | 38.3 C (100.9 F) |
| 1940 | 35.6 C (96.1 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 27.8 C (82.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -17.8 C (0.0 F) |
| 1894 | -31.7 C (-25.1 F) |
| 1895 | -23.3 C (-9.9 F) |
| 1896 | -26.1 C (-15.0 F) |
| 1897 | -28.9 C (-20.0 F) |
| 1898 | -25.0 C (-13.0 F) |
| 1899 | -34.4 C (-29.9 F) |
| 1901 | -29.4 C (-20.9 F) |
| 1902 | -32.2 C (-26.0 F) |
| 1903 | -31.7 C (-25.1 F) |
| 1904 | -32.8 C (-27.0 F) |
| 1905 | -35.6 C (-32.1 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -42.8 C (-45.0 F) |
| 1908 | -31.7 C (-25.1 F) |
| 1909 | -45.0 C (-49.0 F) |
| 1910 | -32.2 C (-26.0 F) |
| 1911 | -37.2 C (-35.0 F) |
| 1912 | -32.8 C (-27.0 F) |
| 1913 | -32.8 C (-27.0 F) |
| 1914 | -33.9 C (-29.0 F) |
| 1915 | -28.9 C (-20.0 F) |
| 1916 | -39.4 C (-38.9 F) |
| 1917 | -30.6 C (-23.1 F) |
| 1918 | -31.1 C (-24.0 F) |
| 1919 | -32.2 C (-26.0 F) |
| 1920 | -26.1 C (-15.0 F) |
| 1921 | -28.9 C (-20.0 F) |
| 1922 | -36.1 C (-33.0 F) |
| 1923 | -40.0 C (-40.0 F) |
| 1924 | -42.2 C (-44.0 F) |
| 1925 | -29.4 C (-20.9 F) |
| 1926 | -28.9 C (-20.0 F) |
| 1927 | -38.3 C (-36.9 F) |
| 1928 | -23.3 C (-9.9 F) |
| 1929 | -38.3 C (-36.9 F) |
| 1930 | -36.7 C (-34.1 F) |
| 1931 | -23.3 C (-9.9 F) |
| 1932 | -35.0 C (-31.0 F) |
| 1933 | -35.6 C (-32.1 F) |
| 1934 | -23.9 C (-11.0 F) |
| 1935 | -38.9 C (-38.0 F) |
| 1936 | -41.7 C (-43.1 F) |
| 1937 | -36.1 C (-33.0 F) |
| 1938 | -21.7 C (-7.1 F) |
| 1939 | -27.8 C (-18.0 F) |
| 1940 | -22.2 C (-8.0 F) |
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -25.6 C (-14.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 25.4 mm (1.0 in) |
| 1894 | 50.8 mm (2.0 in) |
| 1895 | 25.4 mm (1.0 in) |
| 1896 | 25.4 mm (1.0 in) |
| 1897 | 25.4 mm (1.0 in) |
| 1898 | 40.6 mm (1.6 in) |
| 1899 | 10.2 mm (0.4 in) |
| 1901 | 13.2 mm (0.5 in) |
| 1902 | 47.0 mm (1.9 in) |
| 1903 | 22.4 mm (0.9 in) |
| 1904 | 24.1 mm (0.9 in) |
| 1905 | 17.5 mm (0.7 in) |
| 1906 | 36.6 mm (1.4 in) |
| 1907 | 22.9 mm (0.9 in) |
| 1908 | 16.8 mm (0.7 in) |
| 1909 | 27.7 mm (1.1 in) |
| 1910 | 18.8 mm (0.7 in) |
| 1911 | 17.8 mm (0.7 in) |
| 1912 | 27.7 mm (1.1 in) |
| 1913 | 11.9 mm (0.5 in) |
| 1914 | 15.5 mm (0.6 in) |
| 1915 | 27.4 mm (1.1 in) |
| 1916 | 23.6 mm (0.9 in) |
| 1917 | 19.1 mm (0.8 in) |
| 1918 | 27.9 mm (1.1 in) |
| 1919 | 18.8 mm (0.7 in) |
| 1920 | 13.5 mm (0.5 in) |
| 1921 | 24.9 mm (1.0 in) |
| 1922 | 13.5 mm (0.5 in) |
| 1923 | 23.6 mm (0.9 in) |
| 1924 | 20.3 mm (0.8 in) |
| 1925 | 23.4 mm (0.9 in) |
| 1926 | 12.7 mm (0.5 in) |
| 1927 | 20.8 mm (0.8 in) |
| 1928 | 8.1 mm (0.32 in) |
| 1929 | 17.0 mm (0.7 in) |
| 1930 | 18.0 mm (0.7 in) |
| 1931 | 18.8 mm (0.7 in) |
| 1932 | 31.8 mm (1.3 in) |
| 1933 | 34.8 mm (1.4 in) |
| 1934 | 33.3 mm (1.3 in) |
| 1935 | 36.8 mm (1.4 in) |
| 1936 | 17.3 mm (0.7 in) |
| 1937 | 35.6 mm (1.4 in) |
| 1938 | 31.8 mm (1.3 in) |
| 1939 | 18.5 mm (0.7 in) |
| 1940 | 15.5 mm (0.6 in) |
| 1941 | 18.5 mm (0.7 in) |
| 1942 | 21.1 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 49.5 mm (1.9 in) |
| 1894 | 50.8 mm (2.0 in) |
| 1895 | 53.4 mm (2.1 in) |
| 1896 | 45.7 mm (1.8 in) |
| 1897 | 45.7 mm (1.8 in) |
| 1898 | 44.4 mm (1.7 in) |
| 1899 | 29.6 mm (1.2 in) |
| 1901 | 24.9 mm (1.0 in) |
| 1902 | 52.1 mm (2.1 in) |
| 1903 | 38.4 mm (1.5 in) |
| 1904 | 35.8 mm (1.4 in) |
| 1905 | 33.2 mm (1.3 in) |
| 1906 | 62.1 mm (2.4 in) |
| 1907 | 33.5 mm (1.3 in) |
| 1908 | 24.7 mm (1.0 in) |
| 1909 | 40.6 mm (1.6 in) |
| 1910 | 33.8 mm (1.3 in) |
| 1911 | 40.2 mm (1.6 in) |
| 1912 | 40.4 mm (1.6 in) |
| 1913 | 27.4 mm (1.1 in) |
| 1914 | 29.4 mm (1.2 in) |
| 1915 | 33.7 mm (1.3 in) |
| 1916 | 46.8 mm (1.8 in) |
| 1917 | 36.9 mm (1.5 in) |
| 1918 | 45.2 mm (1.8 in) |
| 1919 | 30.5 mm (1.2 in) |
| 1920 | 25.6 mm (1.0 in) |
| 1921 | 42.5 mm (1.7 in) |
| 1922 | 19.0 mm (0.7 in) |
| 1923 | 49.8 mm (2.0 in) |
| 1924 | 44.7 mm (1.8 in) |
| 1925 | 32.8 mm (1.3 in) |
| 1926 | 27.7 mm (1.1 in) |
| 1927 | 29.2 mm (1.1 in) |
| 1928 | 22.4 mm (0.9 in) |
| 1929 | 30.5 mm (1.2 in) |
| 1930 | 32.5 mm (1.3 in) |
| 1931 | 25.7 mm (1.0 in) |
| 1932 | 57.2 mm (2.3 in) |
| 1933 | 66.8 mm (2.6 in) |
| 1934 | 37.4 mm (1.5 in) |
| 1935 | 39.4 mm (1.6 in) |
| 1936 | 33.6 mm (1.3 in) |
| 1937 | 73.7 mm (2.9 in) |
| 1938 | 55.9 mm (2.2 in) |
| 1939 | 33.0 mm (1.3 in) |
| 1940 | 23.2 mm (0.9 in) |
| 1941 | 37.8 mm (1.5 in) |
| 1942 | 39.8 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 19 days |
| 1894 | 31 days |
| 1895 | 24 days |
| 1896 | 31 days |
| 1897 | 26 days |
| 1898 | 33 days |
| 1899 | 12 days |
| 1901 | 56 days |
| 1902 | 21 days |
| 1903 | 20 days |
| 1904 | 28 days |
| 1905 | 30 days |
| 1906 | 26 days |
| 1907 | 35 days |
| 1908 | 34 days |
| 1909 | 34 days |
| 1910 | 30 days |
| 1911 | 38 days |
| 1912 | 23 days |
| 1913 | 31 days |
| 1914 | 25 days |
| 1915 | 21 days |
| 1916 | 55 days |
| 1917 | 28 days |
| 1918 | 34 days |
| 1919 | 26 days |
| 1920 | 35 days |
| 1921 | 21 days |
| 1922 | 21 days |
| 1923 | 41 days |
| 1924 | 27 days |
| 1925 | 38 days |
| 1926 | 29 days |
| 1927 | 26 days |
| 1928 | 29 days |
| 1929 | 25 days |
| 1930 | 29 days |
| 1931 | 23 days |
| 1932 | 27 days |
| 1933 | 27 days |
| 1934 | 32 days |
| 1935 | 21 days |
| 1936 | 25 days |
| 1937 | 20 days |
| 1938 | 35 days |
| 1939 | 40 days |
| 1940 | 34 days |
| 1941 | 30 days |
| 1942 | 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
40 years with a frostAcross 40 years with a frost, the median last spring frost at Princeton falls on 4 June and the median first autumn frost on 3 September, which leaves a median of 91 days between them.
Fitted over all years, the growing season changes by +3.6 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1911 to 1941) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 4 June | n/a | 4 June | n/a | 0.0 days per decade |
| First autumn frost | 3 September | n/a | 7 September | n/a | +3.5 days per decade |
| Growing days | 91 days | n/a | 92 days | n/a | +3.6 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, 1901 to 1941A day with at least 21.1 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 50.0 mm (2.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 21.1 mm (0.8 in) | |
| 5 years | 28.6 mm (1.1 in) | |
| 10 years | 33.7 mm (1.3 in) | |
| 25 years | 40.2 mm (1.6 in) | |
| 50 years | 45.1 mm (1.8 in) | Longer than the 41 years of record |
| 100 years | 50.0 mm (2.0 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 1901 to 1941.
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: 47.0 mm (1.9 in) in 1902; 36.8 mm (1.4 in) in 1935; 36.6 mm (1.4 in) in 1906.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Princeton, at 1911. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1911 ran 0.4 C (0.6 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1911 | +0.4 | +0.6 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
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 (2026-10-17).