Pierce Rs Weather Records (USC00107049)
Record envelope, standing records and threshold days for Pierce Rs (USC00107049), Idaho, United States, with 50 years of record.
Key Facts for Pierce Rs
- Pierce Rs (USC00107049) is a weather station in Idaho, United States at 46.50 latitude and -115.80 longitude, 967 m (3,173 ft) above sea level.
- The station reports from 1913 to 1962, 50 years of record.
- 1,464 records set at Pierce Rs still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Pierce Rs set a daily record snowfall of 17.8 cm (7.0 in) on 3 December 1962.
About the Station
- Location: Idaho, United States, 46.50 latitude, -115.80 longitude.
- Elevation: 967 m (3,173 ft).
- Period of record: 1913 to 1962, 50 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
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 | 16.1 C (61.0 F) | -42.2 C (-44.0 F) | n/a | n/a |
| Mar | 22.8 C (73.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Apr | 33.9 C (93.0 F) | -15.6 C (3.9 F) | n/a | n/a |
| May | 36.1 C (97.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jul | 41.7 C (107.1 F) | -1.1 C (30.0 F) | n/a | n/a |
| Aug | 42.2 C (108.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | -9.4 C (15.1 F) | n/a | n/a |
| Oct | 31.1 C (88.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Nov | 18.9 C (66.0 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Dec | 15.0 C (59.0 F) | -31.7 C (-25.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1922 | 22 |
| 1923 | 25 |
| 1924 | 39 |
| 1925 | 7 |
| 1926 | 25 |
| 1927 | 23 |
| 1928 | 47 |
| 1929 | 37 |
| 1930 | 29 |
| 1931 | 50 |
| 1932 | 20 |
| 1933 | 61 |
| 1934 | 108 |
| 1935 | 48 |
| 1936 | 59 |
| 1937 | 48 |
| 1938 | 42 |
| 1939 | 27 |
| 1940 | 45 |
| 1941 | 55 |
| 1942 | 23 |
| 1943 | 43 |
| 1944 | 41 |
| 1945 | 38 |
| 1946 | 27 |
| 1947 | 21 |
| 1948 | 44 |
| 1949 | 53 |
| 1950 | 45 |
| 1951 | 23 |
| 1952 | 31 |
| 1953 | 31 |
| 1954 | 27 |
| 1955 | 47 |
| 1956 | 28 |
| 1957 | 10 |
| 1958 | 7 |
| 1959 | 18 |
| 1960 | 27 |
| 1961 | 33 |
| 1962 | 30 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1949-02-14 | Record snow depth | Record snow depth 188.0 cm (74.0 in) |
| 1949-02-15 | Record snow depth | Record snow depth 198.1 cm (78.0 in) |
| 1951-03-04 | Record daily snowfall | Record daily snowfall 50.8 cm (20.0 in) |
| 1961-08-04 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
Wettest Day of Each Month
Mar: 121.9 mm (4.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 57.7 mm (2.3 in) | 26 January 1920 |
| Feb | 36.3 mm (1.4 in) | 2 February 1951 |
| Mar | 121.9 mm (4.8 in) | 12 March 1939 |
| Apr | 36.8 mm (1.4 in) | 23 April 1961 |
| May | 53.3 mm (2.1 in) | 20 May 1957 |
| Jun | 62.7 mm (2.5 in) | 1 June 1923 |
| Jul | 49.3 mm (1.9 in) | 28 July 1948 |
| Aug | 32.8 mm (1.3 in) | 14 August 1925 |
| Sep | 42.4 mm (1.7 in) | 23 September 1945 |
| Oct | 50.8 mm (2.0 in) | 22 October 1951 |
| Nov | 90.7 mm (3.6 in) | 26 November 1920 |
| Dec | 68.6 mm (2.7 in) | 22 December 1933 |
Period of Record Coverage
1922 to 1962| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1922 | 185 | 51% | No |
| 1923 | 330 | 90% | Yes |
| 1924 | 322 | 88% | No |
| 1925 | 118 | 32% | No |
| 1926 | 192 | 53% | No |
| 1927 | 235 | 64% | No |
| 1928 | 318 | 87% | No |
| 1929 | 246 | 67% | No |
| 1930 | 242 | 66% | No |
| 1931 | 167 | 46% | No |
| 1932 | 240 | 66% | No |
| 1933 | 357 | 98% | Yes |
| 1934 | 331 | 91% | Yes |
| 1935 | 362 | 99% | Yes |
| 1936 | 332 | 91% | Yes |
| 1937 | 316 | 87% | No |
| 1938 | 363 | 99% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 363 | 99% | Yes |
| 1941 | 339 | 93% | Yes |
| 1942 | 361 | 99% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 324 | 89% | No |
| 1945 | 325 | 89% | No |
| 1946 | 346 | 95% | Yes |
| 1947 | 356 | 98% | Yes |
| 1948 | 336 | 92% | Yes |
| 1949 | 331 | 91% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 358 | 98% | Yes |
| 1952 | 353 | 96% | Yes |
| 1953 | 339 | 93% | Yes |
| 1954 | 335 | 92% | Yes |
| 1955 | 341 | 93% | Yes |
| 1956 | 305 | 83% | No |
| 1957 | 230 | 63% | No |
| 1958 | 327 | 90% | No |
| 1959 | 357 | 98% | Yes |
| 1960 | 354 | 97% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 December 1962 | Pierce Rs, US | daily snowfall | 17.8 cm (7.0 in) | 1.3 cm (0.5 in) | 40 years | 19 of 100 (Routine) |
| 21 November 1962 | Pierce Rs, US | daily rain | 46.2 mm (1.8 in) | 9.6 mm (0.38 in) | 40 years | 27 of 100 (Routine) |
| 15 October 1962 | Pierce Rs, US | daily rain | 16.3 mm (0.6 in) | 5.1 mm (0.20 in) | 24 years | 18 of 100 (Routine) |
| 12 October 1962 | Pierce Rs, US | daily rain | 42.7 mm (1.7 in) | 21.1 mm (0.8 in) | 27 years | 38 of 100 (Notable) |
| 11 October 1962 | Pierce Rs, US | daily low max | 5.0 C (41.0 F) | 3.9 C (7.0 F) | 12 years | 13 of 100 (Routine) |
| 29 September 1962 | Pierce Rs, US | daily rain | 14.0 mm (0.6 in) | 3.8 mm (0.15 in) | 0 years | 9 of 100 (Routine) |
| 12 September 1962 | Pierce Rs, US | daily low min (Tie) | -1.7 C (28.9 F) | tie | 12 years | 1 of 100 (Routine) |
| 9 September 1962 | Pierce Rs, US | daily low min | -4.4 C (24.1 F) | 1.6 C (2.9 F) | 29 years | 16 of 100 (Routine) |
| 8 September 1962 | Pierce Rs, US | daily low min | -3.9 C (25.0 F) | 1.7 C (3.1 F) | 35 years | 18 of 100 (Routine) |
| 31 August 1962 | Pierce Rs, US | daily low min (Tie) | -1.1 C (30.0 F) | tie | 35 years | 3 of 100 (Routine) |
| 28 August 1962 | Pierce Rs, US | daily low max | 15.6 C (60.1 F) | 1.6 C (2.9 F) | 36 years | 18 of 100 (Routine) |
| 24 August 1962 | Pierce Rs, US | daily low min | -0.6 C (30.9 F) | 0.6 C (1.1 F) | 24 years | 12 of 100 (Routine) |
| 23 August 1962 | Pierce Rs, US | daily low min | -0.6 C (30.9 F) | 1.7 C (3.1 F) | 3 years | 9 of 100 (Routine) |
| 22 August 1962 | Pierce Rs, US | daily low min (Tie) | 0.6 C (33.1 F) | tie | 28 years | 3 of 100 (Routine) |
| 9 August 1962 | Pierce Rs, US | daily low max | 22.2 C (72.0 F) | 0.6 C (1.1 F) | 39 years | 16 of 100 (Routine) |
| 8 August 1962 | Pierce Rs, US | daily low max | 21.7 C (71.1 F) | 3.3 C (5.9 F) | 12 years | 13 of 100 (Routine) |
| 4 August 1962 | Pierce Rs, US | daily rain | 11.9 mm (0.5 in) | 1.7 mm (0.07 in) | 8 years | 9 of 100 (Routine) |
| 4 August 1962 | Pierce Rs, US | daily low max | 20.6 C (69.1 F) | 0.5 C (0.9 F) | 12 years | 8 of 100 (Routine) |
| 19 July 1962 | Pierce Rs, US | daily low min | -0.6 C (30.9 F) | 1.7 C (3.1 F) | 37 years | 20 of 100 (Routine) |
| 14 July 1962 | Pierce Rs, US | daily low min | 3.3 C (37.9 F) | 0.6 C (1.1 F) | 13 years | 9 of 100 (Routine) |
Climate Trend
17 complete years, 1933 to 1962| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1933 | 7.0 C | +0.85 C |
| 1935 | 5.8 C | -0.33 C |
| 1939 | 6.9 C | +0.75 C |
| 1940 | 7.9 C | +1.73 C |
| 1943 | 6.2 C | -0.01 C |
| 1945 | 6.9 C | +0.68 C |
| 1946 | 6.2 C | +0.07 C |
| 1950 | 5.8 C | -0.42 C |
| 1951 | 5.5 C | -0.72 C |
| 1952 | 5.9 C | -0.27 C |
| 1953 | 7.1 C | +0.88 C |
| 1954 | 6.2 C | -0.02 C |
| 1955 | 4.8 C | -1.41 C |
| 1959 | 5.9 C | -0.28 C |
| 1960 | 5.7 C | -0.50 C |
| 1961 | 6.2 C | +0.04 C |
| 1962 | 5.1 C | -1.12 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1913 to 1962| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1961 | 37.8 C (100.0 F) | 41 |
| Coldest night (TNn) | -42.2 C (-44.0 F) | 1933 | -26.1 C (-15.0 F) | 41 |
| Wettest day (Rx1day) | 121.9 mm (4.8 in) | 1939 | 37.2 mm (1.5 in) | 50 |
| Wettest five days (Rx5day) | 146.0 mm (5.7 in) | 1939 | 79.6 mm (3.1 in) | 50 |
| Longest dry spell (CDD) | 86 days | 1917 | 27 days | 50 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1913 | n/a |
| 1914 | n/a |
| 1915 | n/a |
| 1916 | n/a |
| 1917 | n/a |
| 1918 | n/a |
| 1919 | n/a |
| 1920 | n/a |
| 1921 | n/a |
| 1922 | 39.4 C (102.9 F) |
| 1923 | 37.2 C (99.0 F) |
| 1924 | 35.6 C (96.1 F) |
| 1925 | 36.1 C (97.0 F) |
| 1926 | 37.8 C (100.0 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 39.4 C (102.9 F) |
| 1929 | 38.3 C (100.9 F) |
| 1930 | 37.2 C (99.0 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 38.3 C (100.9 F) |
| 1933 | 40.6 C (105.1 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 38.9 C (102.0 F) |
| 1937 | 34.4 C (93.9 F) |
| 1938 | 38.3 C (100.9 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 38.9 C (102.0 F) |
| 1941 | 38.9 C (102.0 F) |
| 1942 | 37.8 C (100.0 F) |
| 1943 | 34.4 C (93.9 F) |
| 1944 | 35.0 C (95.0 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 37.2 C (99.0 F) |
| 1947 | 36.7 C (98.1 F) |
| 1948 | 32.8 C (91.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 39.4 C (102.9 F) |
| 1951 | 37.8 C (100.0 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 36.1 C (97.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 35.6 C (96.1 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 40.0 C (104.0 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 42.2 C (108.0 F) |
| 1962 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1913 | n/a |
| 1914 | n/a |
| 1915 | n/a |
| 1916 | n/a |
| 1917 | n/a |
| 1918 | n/a |
| 1919 | n/a |
| 1920 | n/a |
| 1921 | n/a |
| 1922 | -26.1 C (-15.0 F) |
| 1923 | -26.1 C (-15.0 F) |
| 1924 | -28.9 C (-20.0 F) |
| 1925 | -3.3 C (26.1 F) |
| 1926 | -22.8 C (-9.0 F) |
| 1927 | -21.7 C (-7.1 F) |
| 1928 | -21.7 C (-7.1 F) |
| 1929 | -30.0 C (-22.0 F) |
| 1930 | -31.7 C (-25.1 F) |
| 1931 | -22.2 C (-8.0 F) |
| 1932 | -31.7 C (-25.1 F) |
| 1933 | -42.2 C (-44.0 F) |
| 1934 | -20.0 C (-4.0 F) |
| 1935 | -32.2 C (-26.0 F) |
| 1936 | -31.7 C (-25.1 F) |
| 1937 | -36.7 C (-34.1 F) |
| 1938 | -23.9 C (-11.0 F) |
| 1939 | -20.0 C (-4.0 F) |
| 1940 | -21.7 C (-7.1 F) |
| 1941 | -21.1 C (-6.0 F) |
| 1942 | -28.9 C (-20.0 F) |
| 1943 | -30.6 C (-23.1 F) |
| 1944 | -23.3 C (-9.9 F) |
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -18.9 C (-2.0 F) |
| 1947 | -24.4 C (-11.9 F) |
| 1948 | -29.4 C (-20.9 F) |
| 1949 | -35.6 C (-32.1 F) |
| 1950 | -36.1 C (-33.0 F) |
| 1951 | -30.0 C (-22.0 F) |
| 1952 | -26.1 C (-15.0 F) |
| 1953 | -16.1 C (3.0 F) |
| 1954 | -28.9 C (-20.0 F) |
| 1955 | -31.1 C (-24.0 F) |
| 1956 | -31.7 C (-25.1 F) |
| 1957 | -17.8 C (0.0 F) |
| 1958 | -18.9 C (-2.0 F) |
| 1959 | -27.2 C (-17.0 F) |
| 1960 | -27.8 C (-18.0 F) |
| 1961 | -24.4 C (-11.9 F) |
| 1962 | -33.3 C (-27.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1913 | 14.5 mm (0.6 in) |
| 1914 | 21.8 mm (0.9 in) |
| 1915 | 39.4 mm (1.6 in) |
| 1916 | 29.0 mm (1.1 in) |
| 1917 | 47.8 mm (1.9 in) |
| 1918 | 27.7 mm (1.1 in) |
| 1919 | 32.0 mm (1.3 in) |
| 1920 | 90.7 mm (3.6 in) |
| 1921 | 51.8 mm (2.0 in) |
| 1922 | 25.7 mm (1.0 in) |
| 1923 | 62.7 mm (2.5 in) |
| 1924 | 35.1 mm (1.4 in) |
| 1925 | 32.8 mm (1.3 in) |
| 1926 | 31.8 mm (1.3 in) |
| 1927 | 69.9 mm (2.8 in) |
| 1928 | 22.9 mm (0.9 in) |
| 1929 | 29.0 mm (1.1 in) |
| 1930 | 37.3 mm (1.5 in) |
| 1931 | 33.0 mm (1.3 in) |
| 1932 | 34.5 mm (1.4 in) |
| 1933 | 68.6 mm (2.7 in) |
| 1934 | 30.5 mm (1.2 in) |
| 1935 | 26.2 mm (1.0 in) |
| 1936 | 33.5 mm (1.3 in) |
| 1937 | 46.7 mm (1.8 in) |
| 1938 | 39.9 mm (1.6 in) |
| 1939 | 121.9 mm (4.8 in) |
| 1940 | 45.0 mm (1.8 in) |
| 1941 | 37.1 mm (1.5 in) |
| 1942 | 45.2 mm (1.8 in) |
| 1943 | 35.3 mm (1.4 in) |
| 1944 | 32.5 mm (1.3 in) |
| 1945 | 53.3 mm (2.1 in) |
| 1946 | 53.6 mm (2.1 in) |
| 1947 | 38.6 mm (1.5 in) |
| 1948 | 49.3 mm (1.9 in) |
| 1949 | 37.1 mm (1.5 in) |
| 1950 | 44.7 mm (1.8 in) |
| 1951 | 50.8 mm (2.0 in) |
| 1952 | 33.0 mm (1.3 in) |
| 1953 | 51.6 mm (2.0 in) |
| 1954 | 30.2 mm (1.2 in) |
| 1955 | 47.0 mm (1.9 in) |
| 1956 | 34.8 mm (1.4 in) |
| 1957 | 54.6 mm (2.1 in) |
| 1958 | 32.3 mm (1.3 in) |
| 1959 | 38.1 mm (1.5 in) |
| 1960 | 32.5 mm (1.3 in) |
| 1961 | 46.7 mm (1.8 in) |
| 1962 | 46.2 mm (1.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1913 | 34.8 mm (1.4 in) |
| 1914 | 47.5 mm (1.9 in) |
| 1915 | 96.3 mm (3.8 in) |
| 1916 | 71.1 mm (2.8 in) |
| 1917 | 106.8 mm (4.2 in) |
| 1918 | 61.1 mm (2.4 in) |
| 1919 | 83.6 mm (3.3 in) |
| 1920 | 98.6 mm (3.9 in) |
| 1921 | 126.8 mm (5.0 in) |
| 1922 | 69.7 mm (2.7 in) |
| 1923 | 105.9 mm (4.2 in) |
| 1924 | 79.8 mm (3.1 in) |
| 1925 | 48.5 mm (1.9 in) |
| 1926 | 94.0 mm (3.7 in) |
| 1927 | 109.5 mm (4.3 in) |
| 1928 | 62.7 mm (2.5 in) |
| 1929 | 63.6 mm (2.5 in) |
| 1930 | 67.6 mm (2.7 in) |
| 1931 | 45.7 mm (1.8 in) |
| 1932 | 76.4 mm (3.0 in) |
| 1933 | 115.1 mm (4.5 in) |
| 1934 | 70.3 mm (2.8 in) |
| 1935 | 58.4 mm (2.3 in) |
| 1936 | 73.5 mm (2.9 in) |
| 1937 | 70.4 mm (2.8 in) |
| 1938 | 65.8 mm (2.6 in) |
| 1939 | 146.0 mm (5.7 in) |
| 1940 | 70.7 mm (2.8 in) |
| 1941 | 78.0 mm (3.1 in) |
| 1942 | 95.0 mm (3.7 in) |
| 1943 | 79.4 mm (3.1 in) |
| 1944 | 58.1 mm (2.3 in) |
| 1945 | 80.8 mm (3.2 in) |
| 1946 | 142.9 mm (5.6 in) |
| 1947 | 98.3 mm (3.9 in) |
| 1948 | 80.7 mm (3.2 in) |
| 1949 | 90.0 mm (3.5 in) |
| 1950 | 84.8 mm (3.3 in) |
| 1951 | 83.3 mm (3.3 in) |
| 1952 | 58.3 mm (2.3 in) |
| 1953 | 142.5 mm (5.6 in) |
| 1954 | 65.3 mm (2.6 in) |
| 1955 | 70.6 mm (2.8 in) |
| 1956 | 59.7 mm (2.4 in) |
| 1957 | 97.2 mm (3.8 in) |
| 1958 | 82.2 mm (3.2 in) |
| 1959 | 82.8 mm (3.3 in) |
| 1960 | 55.6 mm (2.2 in) |
| 1961 | 104.1 mm (4.1 in) |
| 1962 | 97.3 mm (3.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1913 | 16 days |
| 1914 | 59 days |
| 1915 | 25 days |
| 1916 | 35 days |
| 1917 | 86 days |
| 1918 | 29 days |
| 1919 | 29 days |
| 1920 | 22 days |
| 1921 | 22 days |
| 1922 | 27 days |
| 1923 | 33 days |
| 1924 | 22 days |
| 1925 | 19 days |
| 1926 | 37 days |
| 1927 | 19 days |
| 1928 | 28 days |
| 1929 | 44 days |
| 1930 | 22 days |
| 1931 | 41 days |
| 1932 | 26 days |
| 1933 | 35 days |
| 1934 | 43 days |
| 1935 | 19 days |
| 1936 | 50 days |
| 1937 | 25 days |
| 1938 | 20 days |
| 1939 | 46 days |
| 1940 | 33 days |
| 1941 | 22 days |
| 1942 | 37 days |
| 1943 | 28 days |
| 1944 | 26 days |
| 1945 | 39 days |
| 1946 | 23 days |
| 1947 | 17 days |
| 1948 | 23 days |
| 1949 | 19 days |
| 1950 | 18 days |
| 1951 | 28 days |
| 1952 | 47 days |
| 1953 | 24 days |
| 1954 | 24 days |
| 1955 | 30 days |
| 1956 | 21 days |
| 1957 | 19 days |
| 1958 | 14 days |
| 1959 | 42 days |
| 1960 | 30 days |
| 1961 | 31 days |
| 1962 | 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.
Rainfall Return Levels
33 years, 1915 to 1962A day with at least 40.6 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 103.5 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 40.6 mm (1.6 in) | |
| 5 years | 53.5 mm (2.1 in) | |
| 10 years | 63.4 mm (2.5 in) | |
| 25 years | 77.8 mm (3.1 in) | |
| 50 years | 90.0 mm (3.5 in) | Longer than the 33 years of record |
| 100 years | 103.5 mm (4.1 in) | Longer than the 33 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, 33 years of values from 1915 to 1962.
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: 121.9 mm (4.8 in) in 1939; 68.6 mm (2.7 in) in 1933; 62.7 mm (2.5 in) in 1923.
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).