Anchorage Merrill Fld Weather Records (USW00026409)
Record envelope, standing records and threshold days for Anchorage Merrill Fld (USW00026409), Alaska, United States, with 111 years of record.
Key Facts for Anchorage Merrill Fld
- Anchorage Merrill Fld (USW00026409) is a weather station in Alaska, United States at 61.22 latitude and -149.86 longitude, 38 m (126 ft) above sea level.
- The station reports from 1916 to 2026, 111 years of record.
- 1,464 records set at Anchorage Merrill Fld still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Anchorage Merrill Fld set a daily record low maximum temperature of 3.9 C (39.0 F) on 1 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Alaska, United States, 61.22 latitude, -149.86 longitude.
- Elevation: 38 m (126 ft).
- Period of record: 1916 to 2026, 111 years.
- Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 13.3 C (55.9 F) | -37.2 C (-35.0 F) | 2.8 C (37.0 F) | -31.1 C (-24.0 F) |
| Feb | 13.9 C (57.0 F) | -38.9 C (-38.0 F) | 4.4 C (39.9 F) | -28.9 C (-20.0 F) |
| Mar | 13.3 C (55.9 F) | -28.9 C (-20.0 F) | 2.2 C (36.0 F) | -28.3 C (-18.9 F) |
| Apr | 21.7 C (71.1 F) | -29.4 C (-20.9 F) | 10.6 C (51.1 F) | -12.8 C (9.0 F) |
| May | 27.8 C (82.0 F) | -17.2 C (1.0 F) | 16.7 C (62.1 F) | 0.0 C (32.0 F) |
| Jun | 30.6 C (87.1 F) | -1.7 C (28.9 F) | 26.1 C (79.0 F) | 4.4 C (39.9 F) |
| Jul | 32.2 C (90.0 F) | 1.1 C (34.0 F) | 23.9 C (75.0 F) | 6.1 C (43.0 F) |
| Aug | 28.3 C (82.9 F) | -0.6 C (30.9 F) | 23.3 C (73.9 F) | 4.4 C (39.9 F) |
| Sep | 22.8 C (73.0 F) | -7.2 C (19.0 F) | 19.4 C (66.9 F) | -0.6 C (30.9 F) |
| Oct | 19.4 C (66.9 F) | -21.1 C (-6.0 F) | 12.2 C (54.0 F) | -3.3 C (26.1 F) |
| Nov | 16.7 C (62.1 F) | -28.9 C (-20.0 F) | n/a | n/a |
| Dec | 12.2 C (54.0 F) | -37.8 C (-36.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1916 | 49 |
| 1917 | 67 |
| 1918 | 50 |
| 1919 | 24 |
| 1920 | 60 |
| 1921 | 20 |
| 1922 | 24 |
| 1923 | 11 |
| 1924 | 25 |
| 1925 | 25 |
| 1926 | 46 |
| 1927 | 19 |
| 1928 | 13 |
| 1929 | 10 |
| 1930 | 23 |
| 1931 | 17 |
| 1932 | 24 |
| 1933 | 15 |
| 1934 | 19 |
| 1935 | 25 |
| 1936 | 23 |
| 1937 | 10 |
| 1938 | 18 |
| 1939 | 15 |
| 1940 | 16 |
| 1941 | 14 |
| 1942 | 16 |
| 1943 | 21 |
| 1944 | 24 |
| 1945 | 21 |
| 1946 | 22 |
| 1947 | 41 |
| 1948 | 27 |
| 1949 | 25 |
| 1950 | 15 |
| 1951 | 26 |
| 1952 | 21 |
| 1953 | 14 |
| 1998 | 4 |
| 1999 | 21 |
| 2000 | 8 |
| 2001 | 17 |
| 2002 | 23 |
| 2003 | 34 |
| 2004 | 29 |
| 2005 | 19 |
| 2006 | 13 |
| 2007 | 15 |
| 2008 | 8 |
| 2009 | 17 |
| 2010 | 7 |
| 2011 | 15 |
| 2012 | 1 |
| 2013 | 46 |
| 2014 | 18 |
| 2015 | 27 |
| 2016 | 45 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 42 |
| 2020 | 7 |
| 2021 | 18 |
| 2022 | 20 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 26 |
| 2026 | 13 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1947-02-03 | Record low minimum temperature | Record low minimum temperature -38.9 C (-38.0 F) |
| 1953-06-25 | Record high maximum temperature | Record high maximum temperature 30.0 C (86.0 F) |
| 1953-06-26 | Record high minimum temperature | Record high minimum temperature 16.1 C (61.0 F) |
| 1953-06-27 | Record high minimum temperature | Record high minimum temperature 17.2 C (63.0 F) |
| 1999-07-04 | Record high minimum temperature | Record high minimum temperature 17.8 C (64.0 F) |
| 2002-03-17 | Record daily snowfall | Record daily snowfall 59.7 cm (23.5 in) |
| 2013-06-18 | Record high maximum temperature | Record high maximum temperature 30.6 C (87.1 F) |
| 2019-07-04 | Record high maximum temperature | Record high maximum temperature 32.2 C (90.0 F) |
Wettest Day of Each Month
Oct: 53.3 mm (2.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 23.9 mm (0.9 in) | 29 January 1941 |
| Feb | 22.9 mm (0.9 in) | 2 February 2000 |
| Mar | 20.3 mm (0.8 in) | 16 March 1930 |
| Apr | 32.5 mm (1.3 in) | 25 April 2008 |
| May | 20.3 mm (0.8 in) | 27 May 1934 |
| Jun | 26.4 mm (1.0 in) | 6 June 2016 |
| Jul | 50.3 mm (2.0 in) | 13 July 2024 |
| Aug | 39.9 mm (1.6 in) | 7 August 2024 |
| Sep | 41.4 mm (1.6 in) | 29 September 2015 |
| Oct | 53.3 mm (2.1 in) | 8 October 1916 |
| Nov | 22.1 mm (0.9 in) | 8 November 2020 |
| Dec | 45.2 mm (1.8 in) | 10 December 2003 |
Period of Record Coverage
1916 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1916 | 330 | 90% | Yes |
| 1917 | 362 | 99% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 361 | 99% | Yes |
| 1920 | 361 | 99% | Yes |
| 1921 | 354 | 97% | Yes |
| 1922 | 357 | 98% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 357 | 98% | Yes |
| 1926 | 356 | 98% | Yes |
| 1927 | 322 | 88% | No |
| 1928 | 321 | 88% | No |
| 1929 | 167 | 46% | No |
| 1930 | 364 | 100% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 364 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 304 | 83% | No |
| 1997 | 61 | 17% | No |
| 1998 | 365 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 363 | 99% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 363 | 99% | Yes |
| 2010 | 359 | 98% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 360 | 99% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 360 | 99% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 363 | 99% | Yes |
| 2025 | 329 | 90% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 1 October 2026 | Anchorage Merrill Fld, US | daily low max (Provisional) | 3.9 C (39.0 F) | 1.1 C (2.0 F) | 79 years | 35 of 100 (Notable) |
| 30 September 2026 | Anchorage Merrill Fld, US | daily low max (Provisional) | 4.4 C (39.9 F) | 1.2 C (2.2 F) | 109 years | 43 of 100 (Notable) |
| 16 September 2026 | Anchorage Merrill Fld, US | daily high min (Provisional) | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 8 years | 13 of 100 (Routine) |
| 15 September 2026 | Anchorage Merrill Fld, US | daily high min (Provisional) | 11.1 C (52.0 F) | 1.7 C (3.1 F) | 88 years | 40 of 100 (Notable) |
| 20 July 2026 | Anchorage Merrill Fld, US | daily rain | 24.6 mm (1.0 in) | 4.5 mm (0.18 in) | 91 years | 20 of 100 (Routine) |
| 12 July 2026 | Anchorage Merrill Fld, US | daily rain | 13.0 mm (0.5 in) | 3.1 mm (0.12 in) | 96 years | 20 of 100 (Routine) |
| 12 July 2026 | Anchorage Merrill Fld, US | daily low max (Tie) | 13.3 C (55.9 F) | tie | 84 years | 8 of 100 (Routine) |
| 30 June 2026 | Anchorage Merrill Fld, US | daily rain | 5.6 mm (0.22 in) | 2.3 mm (0.09 in) | 84 years | 20 of 100 (Routine) |
| 3 June 2026 | Anchorage Merrill Fld, US | daily high max (Tie) | 26.1 C (79.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 28 April 2026 | Anchorage Merrill Fld, US | daily rain | 6.6 mm (0.26 in) | 2.8 mm (0.11 in) | 108 years | 20 of 100 (Routine) |
| 12 April 2026 | Anchorage Merrill Fld, US | daily rain | 6.6 mm (0.26 in) | 2.0 mm (0.08 in) | 99 years | 20 of 100 (Routine) |
| 10 April 2026 | Anchorage Merrill Fld, US | daily rain | 2.5 mm (0.10 in) | 0.7 mm (0.03 in) | 3 years | 12 of 100 (Routine) |
| 19 March 2026 | Anchorage Merrill Fld, US | daily low max | -8.9 C (16.0 F) | 1.1 C (2.0 F) | 96 years | 40 of 100 (Notable) |
| 18 March 2026 | Anchorage Merrill Fld, US | daily low max | -10.6 C (12.9 F) | 2.3 C (4.1 F) | 85 years | 40 of 100 (Notable) |
| 11 March 2026 | Anchorage Merrill Fld, US | daily low min | -27.2 C (-17.0 F) | 1.6 C (2.9 F) | 109 years | 42 of 100 (Notable) |
| 10 March 2026 | Anchorage Merrill Fld, US | daily low min | -26.1 C (-15.0 F) | 1.7 C (3.1 F) | 75 years | 34 of 100 (Routine) |
| 10 March 2026 | Anchorage Merrill Fld, US | daily low max | -10.0 C (14.0 F) | 0.1 C (0.2 F) | 16 years | 14 of 100 (Routine) |
| 4 March 2026 | Anchorage Merrill Fld, US | daily low min | -25.6 C (-14.1 F) | 0.6 C (1.1 F) | 75 years | 32 of 100 (Routine) |
| 2 March 2026 | Anchorage Merrill Fld, US | daily low min (Tie) | -27.2 C (-17.0 F) | tie | 108 years | 10 of 100 (Routine) |
| 1 March 2026 | Anchorage Merrill Fld, US | daily low min | -28.3 C (-18.9 F) | 3.3 C (5.9 F) | 103 years | 44 of 100 (Notable) |
Climate Trend
60 complete years, 1917 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1917 | -0.6 C | -2.94 C |
| 1918 | 0.4 C | -1.99 C |
| 1919 | 0.9 C | -1.44 C |
| 1920 | 0.1 C | -2.30 C |
| 1921 | 0.7 C | -1.68 C |
| 1922 | 0.8 C | -1.56 C |
| 1923 | 2.4 C | -0.01 C |
| 1924 | 1.6 C | -0.74 C |
| 1925 | 1.8 C | -0.59 C |
| 1926 | 5.0 C | +2.61 C |
| 1930 | 1.9 C | -0.47 C |
| 1931 | 3.5 C | +1.11 C |
| 1932 | 0.7 C | -1.70 C |
| 1933 | -0.1 C | -2.49 C |
| 1934 | 2.2 C | -0.20 C |
| 1935 | 1.9 C | -0.44 C |
| 1936 | 2.8 C | +0.39 C |
| 1937 | 2.4 C | +0.05 C |
| 1938 | 2.6 C | +0.17 C |
| 1939 | 1.1 C | -1.24 C |
| 1940 | 3.4 C | +0.98 C |
| 1941 | 3.1 C | +0.76 C |
| 1942 | 2.9 C | +0.54 C |
| 1943 | 2.3 C | -0.10 C |
| 1944 | 2.0 C | -0.37 C |
| 1945 | 1.3 C | -1.05 C |
| 1946 | 0.8 C | -1.56 C |
| 1947 | 2.2 C | -0.16 C |
| 1948 | 0.4 C | -2.01 C |
| 1949 | 0.9 C | -1.51 C |
| 1950 | 0.5 C | -1.92 C |
| 1951 | 0.5 C | -1.85 C |
| 1952 | 1.5 C | -0.85 C |
| 1998 | 2.8 C | +0.40 C |
| 1999 | 1.6 C | -0.78 C |
| 2000 | 3.9 C | +1.47 C |
| 2001 | 3.6 C | +1.18 C |
| 2002 | 3.9 C | +1.55 C |
| 2003 | 3.9 C | +1.50 C |
| 2004 | 3.7 C | +1.27 C |
| 2005 | 3.8 C | +1.46 C |
| 2006 | 2.1 C | -0.29 C |
| 2007 | 2.7 C | +0.35 C |
| 2008 | 1.9 C | -0.44 C |
| 2009 | 2.8 C | +0.40 C |
| 2010 | 3.4 C | +1.05 C |
| 2011 | 3.5 C | +1.11 C |
| 2012 | 1.5 C | -0.92 C |
| 2013 | 3.6 C | +1.19 C |
| 2014 | 4.5 C | +2.07 C |
| 2015 | 4.5 C | +2.08 C |
| 2016 | 5.3 C | +2.92 C |
| 2017 | 2.2 C | -0.23 C |
| 2018 | 4.2 C | +1.84 C |
| 2019 | 5.1 C | +2.76 C |
| 2020 | 2.5 C | +0.11 C |
| 2021 | 1.8 C | -0.58 C |
| 2022 | 4.0 C | +1.60 C |
| 2023 | 3.1 C | +0.74 C |
| 2024 | 3.0 C | +0.61 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1917 to 2024. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1917 to 2024 | 60 | Rise |
| Mean daily maximum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1917 to 2024 | 60 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.4 to 0.7) per decade | 1917 to 2024 | 60 | 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
1916 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 32.2 C (90.0 F) | 2019 | 26.1 C (79.0 F) | 68 |
| Coldest night (TNn) | -38.9 C (-38.0 F) | 1947 | -28.5 C (-19.4 F) | 68 |
| Wettest day (Rx1day) | 53.3 mm (2.1 in) | 1916 | 23.9 mm (0.9 in) | 67 |
| Wettest five days (Rx5day) | 107.1 mm (4.2 in) | 1916 | 44.3 mm (1.7 in) | 67 |
| Longest dry spell (CDD) | 159 days | 2020 | 35 days | 67 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1916 | 21.7 C (71.1 F) |
| 1917 | 22.2 C (72.0 F) |
| 1918 | 23.3 C (73.9 F) |
| 1919 | 26.7 C (80.1 F) |
| 1920 | 26.1 C (79.0 F) |
| 1921 | 25.0 C (77.0 F) |
| 1922 | 26.7 C (80.1 F) |
| 1923 | 27.8 C (82.0 F) |
| 1924 | 22.8 C (73.0 F) |
| 1925 | 25.6 C (78.1 F) |
| 1926 | 27.8 C (82.0 F) |
| 1927 | 21.7 C (71.1 F) |
| 1928 | 27.8 C (82.0 F) |
| 1929 | 22.8 C (73.0 F) |
| 1930 | 25.0 C (77.0 F) |
| 1931 | 27.2 C (81.0 F) |
| 1932 | 22.2 C (72.0 F) |
| 1933 | 25.0 C (77.0 F) |
| 1934 | 23.3 C (73.9 F) |
| 1935 | 25.0 C (77.0 F) |
| 1936 | 28.9 C (84.0 F) |
| 1937 | 28.9 C (84.0 F) |
| 1938 | 23.3 C (73.9 F) |
| 1939 | 25.6 C (78.1 F) |
| 1940 | 24.4 C (75.9 F) |
| 1941 | 23.9 C (75.0 F) |
| 1942 | 25.0 C (77.0 F) |
| 1943 | 26.1 C (79.0 F) |
| 1944 | 25.6 C (78.1 F) |
| 1945 | 23.3 C (73.9 F) |
| 1946 | 27.2 C (81.0 F) |
| 1947 | 27.8 C (82.0 F) |
| 1948 | 28.9 C (84.0 F) |
| 1949 | 25.6 C (78.1 F) |
| 1950 | 26.7 C (80.1 F) |
| 1951 | 27.8 C (82.0 F) |
| 1952 | 26.1 C (79.0 F) |
| 1953 | 30.0 C (86.0 F) |
| 1997 | 9.4 C (48.9 F) |
| 1998 | 26.1 C (79.0 F) |
| 1999 | 27.2 C (81.0 F) |
| 2000 | 25.0 C (77.0 F) |
| 2001 | 25.6 C (78.1 F) |
| 2002 | 27.8 C (82.0 F) |
| 2003 | 29.4 C (84.9 F) |
| 2004 | 28.3 C (82.9 F) |
| 2005 | 26.1 C (79.0 F) |
| 2006 | 25.6 C (78.1 F) |
| 2007 | 26.1 C (79.0 F) |
| 2008 | 23.9 C (75.0 F) |
| 2009 | 28.3 C (82.9 F) |
| 2010 | 25.6 C (78.1 F) |
| 2011 | 24.4 C (75.9 F) |
| 2012 | 25.0 C (77.0 F) |
| 2013 | 30.6 C (87.1 F) |
| 2014 | 26.1 C (79.0 F) |
| 2015 | 30.0 C (86.0 F) |
| 2016 | 27.2 C (81.0 F) |
| 2017 | 25.0 C (77.0 F) |
| 2018 | 27.2 C (81.0 F) |
| 2019 | 32.2 C (90.0 F) |
| 2020 | 27.2 C (81.0 F) |
| 2021 | 28.3 C (82.9 F) |
| 2022 | 27.2 C (81.0 F) |
| 2023 | 24.4 C (75.9 F) |
| 2024 | 25.6 C (78.1 F) |
| 2025 | 23.3 C (73.9 F) |
| 2026 | 26.1 C (79.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1916 | -37.8 C (-36.0 F) |
| 1917 | -37.8 C (-36.0 F) |
| 1918 | -35.6 C (-32.1 F) |
| 1919 | -36.1 C (-33.0 F) |
| 1920 | -32.8 C (-27.0 F) |
| 1921 | -34.4 C (-29.9 F) |
| 1922 | -30.0 C (-22.0 F) |
| 1923 | -27.2 C (-17.0 F) |
| 1924 | -30.0 C (-22.0 F) |
| 1925 | -31.1 C (-24.0 F) |
| 1926 | -23.9 C (-11.0 F) |
| 1927 | -27.8 C (-18.0 F) |
| 1928 | -21.7 C (-7.1 F) |
| 1929 | -28.9 C (-20.0 F) |
| 1930 | -28.9 C (-20.0 F) |
| 1931 | -23.3 C (-9.9 F) |
| 1932 | -31.1 C (-24.0 F) |
| 1933 | -31.1 C (-24.0 F) |
| 1934 | -30.6 C (-23.1 F) |
| 1935 | -26.1 C (-15.0 F) |
| 1936 | -26.1 C (-15.0 F) |
| 1937 | -29.4 C (-20.9 F) |
| 1938 | -28.9 C (-20.0 F) |
| 1939 | -29.4 C (-20.9 F) |
| 1940 | -23.3 C (-9.9 F) |
| 1941 | -22.8 C (-9.0 F) |
| 1942 | -26.7 C (-16.1 F) |
| 1943 | -31.1 C (-24.0 F) |
| 1944 | -32.8 C (-27.0 F) |
| 1945 | -33.9 C (-29.0 F) |
| 1946 | -36.1 C (-33.0 F) |
| 1947 | -38.9 C (-38.0 F) |
| 1948 | -28.9 C (-20.0 F) |
| 1949 | -32.8 C (-27.0 F) |
| 1950 | -29.4 C (-20.9 F) |
| 1951 | -35.6 C (-32.1 F) |
| 1952 | -33.3 C (-27.9 F) |
| 1953 | -28.3 C (-18.9 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -25.6 C (-14.1 F) |
| 1999 | -32.2 C (-26.0 F) |
| 2000 | -26.7 C (-16.1 F) |
| 2001 | -27.2 C (-17.0 F) |
| 2002 | -21.7 C (-7.1 F) |
| 2003 | -26.7 C (-16.1 F) |
| 2004 | -30.0 C (-22.0 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -26.0 C (-14.8 F) |
| 2007 | -28.2 C (-18.8 F) |
| 2008 | -27.1 C (-16.8 F) |
| 2009 | -31.0 C (-23.8 F) |
| 2010 | -22.7 C (-8.9 F) |
| 2011 | -25.5 C (-13.9 F) |
| 2012 | -27.7 C (-17.9 F) |
| 2013 | -26.0 C (-14.8 F) |
| 2014 | -19.3 C (-2.7 F) |
| 2015 | -22.1 C (-7.8 F) |
| 2016 | -23.2 C (-9.8 F) |
| 2017 | -29.3 C (-20.7 F) |
| 2018 | -23.2 C (-9.8 F) |
| 2019 | -23.2 C (-9.8 F) |
| 2020 | -28.8 C (-19.8 F) |
| 2021 | -25.5 C (-13.9 F) |
| 2022 | -27.1 C (-16.8 F) |
| 2023 | -22.7 C (-8.9 F) |
| 2024 | -31.6 C (-24.9 F) |
| 2025 | -25.6 C (-14.1 F) |
| 2026 | -31.1 C (-24.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1916 | 53.3 mm (2.1 in) |
| 1917 | 16.3 mm (0.6 in) |
| 1918 | 15.7 mm (0.6 in) |
| 1919 | 20.3 mm (0.8 in) |
| 1920 | 22.9 mm (0.9 in) |
| 1921 | 27.2 mm (1.1 in) |
| 1922 | 18.8 mm (0.7 in) |
| 1923 | 20.8 mm (0.8 in) |
| 1924 | 35.1 mm (1.4 in) |
| 1925 | 21.3 mm (0.8 in) |
| 1926 | 13.2 mm (0.5 in) |
| 1927 | 38.1 mm (1.5 in) |
| 1928 | 19.3 mm (0.8 in) |
| 1929 | 21.1 mm (0.8 in) |
| 1930 | 20.3 mm (0.8 in) |
| 1931 | 20.3 mm (0.8 in) |
| 1932 | 39.4 mm (1.6 in) |
| 1933 | 30.5 mm (1.2 in) |
| 1934 | 21.8 mm (0.9 in) |
| 1935 | 32.8 mm (1.3 in) |
| 1936 | 28.4 mm (1.1 in) |
| 1937 | 22.6 mm (0.9 in) |
| 1938 | 19.1 mm (0.8 in) |
| 1939 | 29.5 mm (1.2 in) |
| 1940 | 37.1 mm (1.5 in) |
| 1941 | 23.9 mm (0.9 in) |
| 1942 | 23.9 mm (0.9 in) |
| 1943 | 29.2 mm (1.1 in) |
| 1944 | 16.5 mm (0.6 in) |
| 1945 | 24.6 mm (1.0 in) |
| 1946 | 12.7 mm (0.5 in) |
| 1947 | 33.3 mm (1.3 in) |
| 1948 | 19.1 mm (0.8 in) |
| 1949 | 18.8 mm (0.7 in) |
| 1950 | 20.1 mm (0.8 in) |
| 1951 | 41.1 mm (1.6 in) |
| 1952 | 23.6 mm (0.9 in) |
| 1953 | 20.1 mm (0.8 in) |
| 1997 | n/a |
| 1998 | 14.0 mm (0.6 in) |
| 1999 | 30.7 mm (1.2 in) |
| 2000 | 22.9 mm (0.9 in) |
| 2001 | 19.3 mm (0.8 in) |
| 2002 | 44.7 mm (1.8 in) |
| 2003 | 45.2 mm (1.8 in) |
| 2004 | 36.8 mm (1.4 in) |
| 2005 | 36.1 mm (1.4 in) |
| 2006 | 26.4 mm (1.0 in) |
| 2007 | 25.9 mm (1.0 in) |
| 2008 | 32.5 mm (1.3 in) |
| 2009 | 11.4 mm (0.4 in) |
| 2010 | 20.6 mm (0.8 in) |
| 2011 | 16.3 mm (0.6 in) |
| 2012 | 25.9 mm (1.0 in) |
| 2013 | 34.0 mm (1.3 in) |
| 2014 | 19.6 mm (0.8 in) |
| 2015 | 41.4 mm (1.6 in) |
| 2016 | 26.4 mm (1.0 in) |
| 2017 | 15.5 mm (0.6 in) |
| 2018 | 25.4 mm (1.0 in) |
| 2019 | 17.8 mm (0.7 in) |
| 2020 | 22.1 mm (0.9 in) |
| 2021 | 27.9 mm (1.1 in) |
| 2022 | 24.9 mm (1.0 in) |
| 2023 | 32.3 mm (1.3 in) |
| 2024 | 50.3 mm (2.0 in) |
| 2025 | 15.0 mm (0.6 in) |
| 2026 | 24.6 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1916 | 107.1 mm (4.2 in) |
| 1917 | 33.6 mm (1.3 in) |
| 1918 | 29.5 mm (1.2 in) |
| 1919 | 48.5 mm (1.9 in) |
| 1920 | 43.5 mm (1.7 in) |
| 1921 | 58.8 mm (2.3 in) |
| 1922 | 39.7 mm (1.6 in) |
| 1923 | 55.1 mm (2.2 in) |
| 1924 | 46.1 mm (1.8 in) |
| 1925 | 50.4 mm (2.0 in) |
| 1926 | 34.6 mm (1.4 in) |
| 1927 | 54.9 mm (2.2 in) |
| 1928 | 40.9 mm (1.6 in) |
| 1929 | 35.5 mm (1.4 in) |
| 1930 | 36.0 mm (1.4 in) |
| 1931 | 46.1 mm (1.8 in) |
| 1932 | 70.7 mm (2.8 in) |
| 1933 | 37.5 mm (1.5 in) |
| 1934 | 59.9 mm (2.4 in) |
| 1935 | 65.9 mm (2.6 in) |
| 1936 | 44.5 mm (1.8 in) |
| 1937 | 43.7 mm (1.7 in) |
| 1938 | 44.5 mm (1.8 in) |
| 1939 | 55.9 mm (2.2 in) |
| 1940 | 43.5 mm (1.7 in) |
| 1941 | 39.7 mm (1.6 in) |
| 1942 | 43.4 mm (1.7 in) |
| 1943 | 56.9 mm (2.2 in) |
| 1944 | 40.1 mm (1.6 in) |
| 1945 | 45.9 mm (1.8 in) |
| 1946 | 25.3 mm (1.0 in) |
| 1947 | 38.4 mm (1.5 in) |
| 1948 | 35.9 mm (1.4 in) |
| 1949 | 31.6 mm (1.2 in) |
| 1950 | 26.0 mm (1.0 in) |
| 1951 | 62.6 mm (2.5 in) |
| 1952 | 48.3 mm (1.9 in) |
| 1953 | 40.2 mm (1.6 in) |
| 1997 | n/a |
| 1998 | 35.7 mm (1.4 in) |
| 1999 | 39.6 mm (1.6 in) |
| 2000 | 38.6 mm (1.5 in) |
| 2001 | 53.8 mm (2.1 in) |
| 2002 | 57.1 mm (2.2 in) |
| 2003 | 67.1 mm (2.6 in) |
| 2004 | 69.4 mm (2.7 in) |
| 2005 | 57.4 mm (2.3 in) |
| 2006 | 72.4 mm (2.9 in) |
| 2007 | 44.3 mm (1.7 in) |
| 2008 | 34.8 mm (1.4 in) |
| 2009 | 33.4 mm (1.3 in) |
| 2010 | 28.4 mm (1.1 in) |
| 2011 | 31.1 mm (1.2 in) |
| 2012 | 82.6 mm (3.3 in) |
| 2013 | 57.9 mm (2.3 in) |
| 2014 | 39.4 mm (1.6 in) |
| 2015 | 77.2 mm (3.0 in) |
| 2016 | 46.4 mm (1.8 in) |
| 2017 | 42.8 mm (1.7 in) |
| 2018 | 44.2 mm (1.7 in) |
| 2019 | 31.7 mm (1.2 in) |
| 2020 | 33.5 mm (1.3 in) |
| 2021 | 51.0 mm (2.0 in) |
| 2022 | 63.8 mm (2.5 in) |
| 2023 | 62.8 mm (2.5 in) |
| 2024 | 101.4 mm (4.0 in) |
| 2025 | 33.5 mm (1.3 in) |
| 2026 | 59.8 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1916 | 61 days |
| 1917 | 37 days |
| 1918 | 23 days |
| 1919 | 49 days |
| 1920 | 40 days |
| 1921 | 41 days |
| 1922 | 30 days |
| 1923 | 32 days |
| 1924 | 36 days |
| 1925 | 44 days |
| 1926 | 48 days |
| 1927 | 15 days |
| 1928 | 34 days |
| 1929 | 26 days |
| 1930 | 36 days |
| 1931 | 63 days |
| 1932 | 46 days |
| 1933 | 32 days |
| 1934 | 30 days |
| 1935 | 29 days |
| 1936 | 35 days |
| 1937 | 31 days |
| 1938 | 55 days |
| 1939 | 29 days |
| 1940 | 38 days |
| 1941 | 23 days |
| 1942 | 29 days |
| 1943 | 35 days |
| 1944 | 24 days |
| 1945 | 21 days |
| 1946 | 32 days |
| 1947 | 27 days |
| 1948 | 40 days |
| 1949 | 26 days |
| 1950 | 79 days |
| 1951 | 33 days |
| 1952 | 23 days |
| 1953 | 42 days |
| 1997 | n/a |
| 1998 | 30 days |
| 1999 | 30 days |
| 2000 | 47 days |
| 2001 | 23 days |
| 2002 | 22 days |
| 2003 | 18 days |
| 2004 | 45 days |
| 2005 | 34 days |
| 2006 | 35 days |
| 2007 | 31 days |
| 2008 | 50 days |
| 2009 | 45 days |
| 2010 | 42 days |
| 2011 | 48 days |
| 2012 | 46 days |
| 2013 | 28 days |
| 2014 | 43 days |
| 2015 | 36 days |
| 2016 | 31 days |
| 2017 | 37 days |
| 2018 | 35 days |
| 2019 | 47 days |
| 2020 | 159 days |
| 2021 | 28 days |
| 2022 | 41 days |
| 2023 | 44 days |
| 2024 | 97 days |
| 2025 | 106 days |
| 2026 | 74 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
60 years with a frostAcross 60 years with a frost, the median last spring frost at Anchorage Merrill Fld falls on 10 May and the median first autumn frost on 19 September, which leaves a median of 130 days between them.
In 1950 to 2024 the median growing season was 146 days. That is 31 days more than in 1917 to 1949.
Fitted over all years, the growing season changes by +4.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1917 to 1949) | Recent period (1950 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 10 May | 20 May | 2 May | 18 days earlier | -2.4 days per decade |
| First autumn frost | 19 September | 11 September | 25 September | 14 days later | +1.7 days per decade |
| Growing days | 130 days | 115 days | 146 days | 31 days more | +4.1 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
59 years, 1917 to 2024A day with at least 24.9 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 54.1 mm (2.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 24.9 mm (1.0 in) | |
| 5 years | 33.0 mm (1.3 in) | |
| 10 years | 38.3 mm (1.5 in) | |
| 25 years | 44.7 mm (1.8 in) | |
| 50 years | 49.5 mm (1.9 in) | |
| 100 years | 54.1 mm (2.1 in) | Longer than the 59 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, 59 years of values from 1917 to 2024.
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: 50.3 mm (2.0 in) in 2024; 45.2 mm (1.8 in) in 2003; 44.7 mm (1.8 in) in 2002.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).