Omolon Weather Records (RSM00025428)
Record envelope, standing records and threshold days for Omolon (RSM00025428), Russia, with 82 years of record.
Key Facts for Omolon
- Omolon (RSM00025428) is a weather station in Russia at 65.23 latitude and 160.53 longitude, 260 m (853 ft) above sea level.
- The station reports from 1944 to 2025, 82 years of record.
- 1,464 records set at Omolon still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Omolon set a daily record high minimum temperature of 15.1 C (59.2 F) on 3 August 2025.
About the Station
- Location: Russia, 65.23 latitude, 160.53 longitude.
- Elevation: 260 m (853 ft).
- Period of record: 1944 to 2025, 82 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
4 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 3.0 C (37.4 F) | -60.9 C (-77.6 F) | -26.3 C (-15.3 F) | -49.9 C (-57.8 F) |
| Feb | 3.6 C (38.5 F) | -61.1 C (-78.0 F) | -12.7 C (9.1 F) | -52.7 C (-62.9 F) |
| Mar | 4.0 C (39.2 F) | -57.2 C (-71.0 F) | 2.3 C (36.1 F) | -42.7 C (-44.9 F) |
| Apr | 9.7 C (49.5 F) | -48.4 C (-55.1 F) | 5.9 C (42.6 F) | -24.6 C (-12.3 F) |
| May | 25.7 C (78.3 F) | -31.3 C (-24.3 F) | 25.7 C (78.3 F) | -15.9 C (3.4 F) |
| Jun | 31.9 C (89.4 F) | -5.1 C (22.8 F) | 25.0 C (77.0 F) | -1.1 C (30.0 F) |
| Jul | 34.0 C (93.2 F) | -3.5 C (25.7 F) | 28.2 C (82.8 F) | 3.6 C (38.5 F) |
| Aug | 31.2 C (88.2 F) | -9.3 C (15.3 F) | 24.6 C (76.3 F) | -5.0 C (23.0 F) |
| Sep | 25.3 C (77.5 F) | -21.8 C (-7.2 F) | n/a | n/a |
| Oct | 15.0 C (59.0 F) | -37.7 C (-35.9 F) | n/a | n/a |
| Nov | 4.5 C (40.1 F) | -54.1 C (-65.4 F) | n/a | n/a |
| Dec | 3.8 C (38.8 F) | -59.9 C (-75.8 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1944 | 13 |
| 1945 | 14 |
| 1946 | 26 |
| 1947 | 7 |
| 1948 | 29 |
| 1949 | 28 |
| 1950 | 44 |
| 1951 | 23 |
| 1952 | 31 |
| 1953 | 3 |
| 1954 | 23 |
| 1955 | 25 |
| 1956 | 21 |
| 1957 | 19 |
| 1958 | 30 |
| 1959 | 10 |
| 1960 | 7 |
| 1961 | 11 |
| 1962 | 18 |
| 1963 | 30 |
| 1964 | 48 |
| 1965 | 37 |
| 1966 | 20 |
| 1967 | 25 |
| 1968 | 16 |
| 1969 | 16 |
| 1970 | 24 |
| 1971 | 14 |
| 1972 | 14 |
| 1973 | 19 |
| 1974 | 11 |
| 1975 | 2 |
| 1976 | 10 |
| 1977 | 14 |
| 1978 | 5 |
| 1979 | 10 |
| 1980 | 18 |
| 1981 | 17 |
| 1982 | 24 |
| 1983 | 27 |
| 1984 | 19 |
| 1985 | 13 |
| 1986 | 8 |
| 1987 | 11 |
| 1988 | 7 |
| 1989 | 23 |
| 1990 | 16 |
| 1991 | 14 |
| 1992 | 15 |
| 1993 | 9 |
| 1994 | 12 |
| 1995 | 17 |
| 1996 | 18 |
| 1997 | 12 |
| 1998 | 14 |
| 1999 | 15 |
| 2000 | 19 |
| 2001 | 20 |
| 2002 | 26 |
| 2003 | 28 |
| 2004 | 11 |
| 2005 | 8 |
| 2006 | 33 |
| 2007 | 8 |
| 2008 | 19 |
| 2009 | 15 |
| 2010 | 29 |
| 2011 | 23 |
| 2012 | 22 |
| 2013 | 16 |
| 2014 | 14 |
| 2015 | 9 |
| 2016 | 22 |
| 2017 | 18 |
| 2018 | 15 |
| 2019 | 15 |
| 2020 | 11 |
| 2021 | 20 |
| 2022 | 28 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 7 |
All-Time Record Progression
16 new records| Date | Kind | Detail |
|---|---|---|
| 1975-07-05 | Record high maximum temperature | Record high maximum temperature 30.6 C (87.1 F) |
| 1975-08-24 | Record daily precipitation | Record daily precipitation 32.1 mm (1.3 in) |
| 1976-07-03 | Record high maximum temperature | Record high maximum temperature 31.1 C (88.0 F) |
| 1976-07-18 | Record high maximum temperature | Record high maximum temperature 31.3 C (88.3 F) |
| 1981-06-30 | Record high minimum temperature | Record high minimum temperature 16.3 C (61.3 F) |
| 1981-07-05 | Record high maximum temperature | Record high maximum temperature 32.2 C (90.0 F) |
| 1989-07-02 | Record high minimum temperature | Record high minimum temperature 16.8 C (62.2 F) |
| 1998-07-20 | Record daily precipitation | Record daily precipitation 39.1 mm (1.5 in) |
| 2000-07-01 | Record high maximum temperature | Record high maximum temperature 32.3 C (90.1 F) |
| 2000-07-01 | Record high minimum temperature | Record high minimum temperature 17.0 C (62.6 F) |
| 2001-07-26 | Record high maximum temperature | Record high maximum temperature 32.4 C (90.3 F) |
| 2001-07-31 | Record high maximum temperature | Record high maximum temperature 32.6 C (90.7 F) |
| 2002-02-06 | Record low minimum temperature | Record low minimum temperature -61.1 C (-78.0 F) |
| 2010-07-19 | Record high maximum temperature | Record high maximum temperature 34.0 C (93.2 F) |
| 2021-07-09 | Record high minimum temperature | Record high minimum temperature 17.1 C (62.8 F) |
| 2022-07-12 | Record high minimum temperature | Record high minimum temperature 19.6 C (67.3 F) |
Wettest Day of Each Month
Jun: 39.1 mm (1.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 11.9 mm (0.5 in) | 15 January 2020 |
| Feb | 9.9 mm (0.39 in) | 1 February 2021 |
| Mar | 10.7 mm (0.4 in) | 21 March 2004 |
| Apr | 8.9 mm (0.35 in) | 10 April 1997 |
| May | 14.8 mm (0.6 in) | 30 May 1971 |
| Jun | 39.1 mm (1.5 in) | 29 June 2022 |
| Jul | 39.1 mm (1.5 in) | 20 July 1998 |
| Aug | 32.1 mm (1.3 in) | 24 August 1975 |
| Sep | 23.1 mm (0.9 in) | 12 September 2022 |
| Oct | 26.1 mm (1.0 in) | 4 October 2013 |
| Nov | 19.1 mm (0.8 in) | 15 November 2020 |
| Dec | 11.2 mm (0.4 in) | 6 December 2013 |
Period of Record Coverage
1944 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1944 | 235 | 64% | No |
| 1945 | 362 | 99% | Yes |
| 1946 | 357 | 98% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 338 | 92% | Yes |
| 1949 | 318 | 87% | No |
| 1950 | 262 | 72% | No |
| 1951 | 210 | 58% | No |
| 1952 | 350 | 96% | Yes |
| 1953 | 348 | 95% | Yes |
| 1954 | 292 | 80% | No |
| 1955 | 260 | 71% | No |
| 1956 | 324 | 89% | No |
| 1957 | 340 | 93% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 356 | 98% | Yes |
| 1960 | 357 | 98% | Yes |
| 1961 | 361 | 99% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 359 | 98% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 314 | 86% | No |
| 1967 | 361 | 99% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 359 | 98% | Yes |
| 1970 | 358 | 98% | Yes |
| 1971 | 287 | 79% | No |
| 1972 | 299 | 82% | No |
| 1973 | 294 | 81% | No |
| 1974 | 298 | 82% | No |
| 1975 | 365 | 100% | Yes |
| 1976 | 363 | 99% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 361 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 334 | 92% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 360 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 330 | 90% | Yes |
| 2020 | 313 | 86% | No |
| 2021 | 301 | 82% | No |
| 2022 | 314 | 86% | No |
| 2023 | 309 | 85% | No |
| 2024 | 288 | 79% | No |
| 2025 | 199 | 55% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 August 2025 | Omolon, RU | daily high min | 15.1 C (59.2 F) | 0.8 C (1.4 F) | 68 years | 29 of 100 (Routine) |
| 12 June 2025 | Omolon, RU | daily low min | -1.1 C (30.0 F) | 0.4 C (0.7 F) | 32 years | 18 of 100 (Routine) |
| 6 June 2025 | Omolon, RU | daily high min | 11.0 C (51.8 F) | 1.2 C (2.2 F) | 4 years | 12 of 100 (Routine) |
| 3 June 2025 | Omolon, RU | daily rain | 22.1 mm (0.9 in) | 4.8 mm (0.19 in) | 8 years | 20 of 100 (Routine) |
| 30 May 2025 | Omolon, RU | monthly high max | 25.7 C (78.3 F) | 0.2 C (0.4 F) | 15 years | 22 of 100 (Routine) |
| 14 April 2025 | Omolon, RU | daily rain | 6.1 mm (0.24 in) | 2.8 mm (0.11 in) | 0 years | 20 of 100 (Routine) |
| 13 April 2025 | Omolon, RU | daily rain (Tie) | 2.0 mm (0.08 in) | tie | 0 years | 2 of 100 (Routine) |
| 9 April 2025 | Omolon, RU | daily high min | -2.0 C (28.4 F) | 4.7 C (8.5 F) | 35 years | 22 of 100 (Routine) |
| 8 April 2025 | Omolon, RU | daily high max | 2.2 C (36.0 F) | 1.7 C (3.1 F) | 71 years | 31 of 100 (Routine) |
| 30 March 2025 | Omolon, RU | daily high max | 2.3 C (36.1 F) | 2.4 C (4.3 F) | 23 years | 16 of 100 (Routine) |
| 29 March 2025 | Omolon, RU | daily rain | 5.1 mm (0.20 in) | 0.9 mm (0.04 in) | 18 years | 17 of 100 (Routine) |
| 28 March 2025 | Omolon, RU | daily rain | 8.9 mm (0.35 in) | 6.0 mm (0.24 in) | 62 years | 20 of 100 (Routine) |
| 21 October 2024 | Omolon, RU | daily rain | 6.1 mm (0.24 in) | 1.5 mm (0.06 in) | 42 years | 20 of 100 (Routine) |
| 1 October 2024 | Omolon, RU | daily rain (Tie) | 10.9 mm (0.4 in) | tie | 5 years | 2 of 100 (Routine) |
| 29 September 2024 | Omolon, RU | daily rain | 13.0 mm (0.5 in) | 1.7 mm (0.07 in) | 12 years | 16 of 100 (Routine) |
| 3 September 2024 | Omolon, RU | daily high min | 8.4 C (47.1 F) | 0.2 C (0.4 F) | 80 years | 32 of 100 (Routine) |
| 3 September 2024 | Omolon, RU | daily rain | 17.0 mm (0.7 in) | 0.5 mm (0.02 in) | 78 years | 20 of 100 (Routine) |
| 1 September 2024 | Omolon, RU | daily high min | 9.7 C (49.5 F) | 0.2 C (0.4 F) | 14 years | 12 of 100 (Routine) |
| 6 August 2024 | Omolon, RU | daily low min | -3.8 C (25.2 F) | 1.8 C (3.2 F) | 51 years | 27 of 100 (Routine) |
| 25 July 2024 | Omolon, RU | daily low max | 8.0 C (46.4 F) | 1.0 C (1.8 F) | 51 years | 24 of 100 (Routine) |
Climate Trend
61 complete years, 1945 to 2018| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1945 | -12.9 C | -0.94 C |
| 1946 | -14.7 C | -2.74 C |
| 1947 | -13.4 C | -1.48 C |
| 1948 | -11.7 C | +0.27 C |
| 1952 | -13.9 C | -1.94 C |
| 1953 | -12.3 C | -0.38 C |
| 1957 | -13.0 C | -1.00 C |
| 1958 | -14.7 C | -2.72 C |
| 1959 | -12.2 C | -0.27 C |
| 1960 | -12.1 C | -0.16 C |
| 1961 | -13.0 C | -1.07 C |
| 1962 | -11.7 C | +0.24 C |
| 1963 | -13.0 C | -1.00 C |
| 1964 | -14.2 C | -2.28 C |
| 1965 | -15.0 C | -3.08 C |
| 1967 | -12.9 C | -0.92 C |
| 1968 | -12.8 C | -0.85 C |
| 1969 | -12.4 C | -0.44 C |
| 1970 | -13.2 C | -1.27 C |
| 1975 | -12.1 C | -0.15 C |
| 1976 | -14.2 C | -2.20 C |
| 1977 | -13.3 C | -1.38 C |
| 1978 | -12.2 C | -0.24 C |
| 1980 | -11.8 C | +0.14 C |
| 1981 | -11.3 C | +0.62 C |
| 1982 | -13.8 C | -1.82 C |
| 1983 | -12.0 C | -0.05 C |
| 1984 | -12.4 C | -0.41 C |
| 1985 | -11.5 C | +0.47 C |
| 1986 | -11.9 C | +0.06 C |
| 1987 | -13.5 C | -1.51 C |
| 1988 | -11.9 C | +0.03 C |
| 1989 | -11.3 C | +0.64 C |
| 1990 | -12.2 C | -0.20 C |
| 1991 | -11.3 C | +0.70 C |
| 1992 | -13.1 C | -1.18 C |
| 1993 | -13.7 C | -1.78 C |
| 1994 | -11.5 C | +0.50 C |
| 1995 | -9.3 C | +2.65 C |
| 1996 | -10.0 C | +1.99 C |
| 1997 | -10.8 C | +1.18 C |
| 1999 | -14.0 C | -2.01 C |
| 2000 | -11.3 C | +0.62 C |
| 2001 | -11.4 C | +0.60 C |
| 2002 | -10.8 C | +1.16 C |
| 2003 | -9.0 C | +2.95 C |
| 2004 | -12.1 C | -0.10 C |
| 2005 | -12.1 C | -0.14 C |
| 2006 | -11.2 C | +0.72 C |
| 2007 | -9.3 C | +2.70 C |
| 2008 | -9.7 C | +2.23 C |
| 2009 | -12.0 C | -0.04 C |
| 2010 | -10.4 C | +1.53 C |
| 2011 | -11.8 C | +0.16 C |
| 2012 | -10.3 C | +1.67 C |
| 2013 | -11.1 C | +0.83 C |
| 2014 | -10.4 C | +1.52 C |
| 2015 | -10.7 C | +1.24 C |
| 2016 | -9.0 C | +2.91 C |
| 2017 | -8.9 C | +3.04 C |
| 2018 | -9.8 C | +2.14 C |
The annual mean temperature here has risen by 0.5 C (0.3 to 0.6) per decade over 1945 to 2018. In Fahrenheit: 0.9 F (0.6 to 1.1) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.5 C (0.3 to 0.6) per decade | 0.9 F (0.6 to 1.1) per decade | 1945 to 2018 | 61 | Rise |
| Mean daily maximum | 0.4 C (0.3 to 0.6) per decade | 0.7 F (0.5 to 1.0) per decade | 1945 to 2018 | 61 | Rise |
| Mean daily minimum | 0.6 C (0.4 to 0.7) per decade | 1.0 F (0.8 to 1.2) per decade | 1945 to 2018 | 61 | 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
1944 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 34.0 C (93.2 F) | 2010 | 29.2 C (84.5 F) | 82 |
| Coldest night (TNn) | -61.1 C (-78.0 F) | 2002 | -53.5 C (-64.3 F) | 82 |
| Wettest day (Rx1day) | 39.1 mm (1.5 in) | 1998 | 18.0 mm (0.7 in) | 82 |
| Wettest five days (Rx5day) | 66.8 mm (2.6 in) | 1953 | 32.0 mm (1.3 in) | 82 |
| Longest dry spell (CDD) | 110 days | 2005 | 39 days | 82 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1944 | 27.7 C (81.9 F) |
| 1945 | 29.3 C (84.7 F) |
| 1946 | 26.8 C (80.2 F) |
| 1947 | 25.3 C (77.5 F) |
| 1948 | 26.3 C (79.3 F) |
| 1949 | 27.9 C (82.2 F) |
| 1950 | 23.4 C (74.1 F) |
| 1951 | 27.5 C (81.5 F) |
| 1952 | 29.7 C (85.5 F) |
| 1953 | 29.8 C (85.6 F) |
| 1954 | 28.8 C (83.8 F) |
| 1955 | 28.0 C (82.4 F) |
| 1956 | 30.5 C (86.9 F) |
| 1957 | 30.2 C (86.4 F) |
| 1958 | 29.5 C (85.1 F) |
| 1959 | 29.8 C (85.6 F) |
| 1960 | 28.5 C (83.3 F) |
| 1961 | 30.2 C (86.4 F) |
| 1962 | 27.1 C (80.8 F) |
| 1963 | 30.2 C (86.4 F) |
| 1964 | 28.0 C (82.4 F) |
| 1965 | 27.5 C (81.5 F) |
| 1966 | 29.7 C (85.5 F) |
| 1967 | 28.2 C (82.8 F) |
| 1968 | 27.7 C (81.9 F) |
| 1969 | 28.9 C (84.0 F) |
| 1970 | 28.1 C (82.6 F) |
| 1971 | 28.6 C (83.5 F) |
| 1972 | 26.1 C (79.0 F) |
| 1973 | 28.0 C (82.4 F) |
| 1974 | 28.0 C (82.4 F) |
| 1975 | 30.6 C (87.1 F) |
| 1976 | 31.3 C (88.3 F) |
| 1977 | 29.8 C (85.6 F) |
| 1978 | 25.5 C (77.9 F) |
| 1979 | 25.3 C (77.5 F) |
| 1980 | 27.4 C (81.3 F) |
| 1981 | 32.2 C (90.0 F) |
| 1982 | 26.7 C (80.1 F) |
| 1983 | 31.0 C (87.8 F) |
| 1984 | 30.3 C (86.5 F) |
| 1985 | 27.1 C (80.8 F) |
| 1986 | 25.8 C (78.4 F) |
| 1987 | 28.4 C (83.1 F) |
| 1988 | 27.2 C (81.0 F) |
| 1989 | 31.0 C (87.8 F) |
| 1990 | 27.7 C (81.9 F) |
| 1991 | 31.8 C (89.2 F) |
| 1992 | 29.0 C (84.2 F) |
| 1993 | 29.8 C (85.6 F) |
| 1994 | 30.7 C (87.3 F) |
| 1995 | 28.9 C (84.0 F) |
| 1996 | 30.5 C (86.9 F) |
| 1997 | 28.2 C (82.8 F) |
| 1998 | 27.5 C (81.5 F) |
| 1999 | 27.2 C (81.0 F) |
| 2000 | 32.3 C (90.1 F) |
| 2001 | 32.6 C (90.7 F) |
| 2002 | 31.3 C (88.3 F) |
| 2003 | 32.1 C (89.8 F) |
| 2004 | 29.5 C (85.1 F) |
| 2005 | 30.1 C (86.2 F) |
| 2006 | 32.2 C (90.0 F) |
| 2007 | 29.9 C (85.8 F) |
| 2008 | 31.2 C (88.2 F) |
| 2009 | 27.6 C (81.7 F) |
| 2010 | 34.0 C (93.2 F) |
| 2011 | 28.2 C (82.8 F) |
| 2012 | 30.7 C (87.3 F) |
| 2013 | 30.3 C (86.5 F) |
| 2014 | 28.7 C (83.7 F) |
| 2015 | 30.5 C (86.9 F) |
| 2016 | 29.6 C (85.3 F) |
| 2017 | 27.0 C (80.6 F) |
| 2018 | 28.6 C (83.5 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 31.0 C (87.8 F) |
| 2021 | 31.9 C (89.4 F) |
| 2022 | 34.0 C (93.2 F) |
| 2023 | 30.1 C (86.2 F) |
| 2024 | 29.3 C (84.7 F) |
| 2025 | 28.2 C (82.8 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1944 | -48.4 C (-55.1 F) |
| 1945 | -57.6 C (-71.7 F) |
| 1946 | -56.7 C (-70.1 F) |
| 1947 | -57.3 C (-71.1 F) |
| 1948 | -58.4 C (-73.1 F) |
| 1949 | -57.0 C (-70.6 F) |
| 1950 | -58.7 C (-73.7 F) |
| 1951 | -57.8 C (-72.0 F) |
| 1952 | -60.4 C (-76.7 F) |
| 1953 | -52.8 C (-63.0 F) |
| 1954 | -59.9 C (-75.8 F) |
| 1955 | -53.5 C (-64.3 F) |
| 1956 | -54.9 C (-66.8 F) |
| 1957 | -55.6 C (-68.1 F) |
| 1958 | -54.1 C (-65.4 F) |
| 1959 | -55.2 C (-67.4 F) |
| 1960 | -53.3 C (-63.9 F) |
| 1961 | -55.2 C (-67.4 F) |
| 1962 | -55.8 C (-68.4 F) |
| 1963 | -52.6 C (-62.7 F) |
| 1964 | -60.9 C (-77.6 F) |
| 1965 | -58.8 C (-73.8 F) |
| 1966 | -54.3 C (-65.7 F) |
| 1967 | -57.7 C (-71.9 F) |
| 1968 | -57.0 C (-70.6 F) |
| 1969 | -53.8 C (-64.8 F) |
| 1970 | -57.6 C (-71.7 F) |
| 1971 | -58.4 C (-73.1 F) |
| 1972 | -53.1 C (-63.6 F) |
| 1973 | -49.0 C (-56.2 F) |
| 1974 | -48.0 C (-54.4 F) |
| 1975 | -53.5 C (-64.3 F) |
| 1976 | -54.1 C (-65.4 F) |
| 1977 | -55.7 C (-68.3 F) |
| 1978 | -59.1 C (-74.4 F) |
| 1979 | -52.3 C (-62.1 F) |
| 1980 | -50.9 C (-59.6 F) |
| 1981 | -52.2 C (-62.0 F) |
| 1982 | -56.6 C (-69.9 F) |
| 1983 | -53.0 C (-63.4 F) |
| 1984 | -52.6 C (-62.7 F) |
| 1985 | -52.6 C (-62.7 F) |
| 1986 | -56.3 C (-69.3 F) |
| 1987 | -53.6 C (-64.5 F) |
| 1988 | -51.5 C (-60.7 F) |
| 1989 | -53.0 C (-63.4 F) |
| 1990 | -55.4 C (-67.7 F) |
| 1991 | -50.3 C (-58.5 F) |
| 1992 | -50.8 C (-59.4 F) |
| 1993 | -55.8 C (-68.4 F) |
| 1994 | -53.1 C (-63.6 F) |
| 1995 | -51.8 C (-61.2 F) |
| 1996 | -50.3 C (-58.5 F) |
| 1997 | -54.3 C (-65.7 F) |
| 1998 | -52.0 C (-61.6 F) |
| 1999 | -54.6 C (-66.3 F) |
| 2000 | -56.5 C (-69.7 F) |
| 2001 | -52.7 C (-62.9 F) |
| 2002 | -61.1 C (-78.0 F) |
| 2003 | -49.1 C (-56.4 F) |
| 2004 | -50.8 C (-59.4 F) |
| 2005 | -57.2 C (-71.0 F) |
| 2006 | -51.8 C (-61.2 F) |
| 2007 | -52.1 C (-61.8 F) |
| 2008 | -53.4 C (-64.1 F) |
| 2009 | -52.5 C (-62.5 F) |
| 2010 | -55.2 C (-67.4 F) |
| 2011 | -55.6 C (-68.1 F) |
| 2012 | -53.5 C (-64.3 F) |
| 2013 | -52.5 C (-62.5 F) |
| 2014 | -53.8 C (-64.8 F) |
| 2015 | -50.0 C (-58.0 F) |
| 2016 | -49.9 C (-57.8 F) |
| 2017 | -50.8 C (-59.4 F) |
| 2018 | -53.4 C (-64.1 F) |
| 2019 | -49.1 C (-56.4 F) |
| 2020 | -52.9 C (-63.2 F) |
| 2021 | -52.2 C (-62.0 F) |
| 2022 | -50.3 C (-58.5 F) |
| 2023 | -50.7 C (-59.3 F) |
| 2024 | -53.2 C (-63.8 F) |
| 2025 | -52.7 C (-62.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1944 | 15.1 mm (0.6 in) |
| 1945 | 11.3 mm (0.4 in) |
| 1946 | 24.1 mm (0.9 in) |
| 1947 | 10.2 mm (0.4 in) |
| 1948 | 20.6 mm (0.8 in) |
| 1949 | 21.3 mm (0.8 in) |
| 1950 | 20.7 mm (0.8 in) |
| 1951 | 13.0 mm (0.5 in) |
| 1952 | 20.0 mm (0.8 in) |
| 1953 | 30.5 mm (1.2 in) |
| 1954 | 27.0 mm (1.1 in) |
| 1955 | 16.0 mm (0.6 in) |
| 1956 | 8.3 mm (0.33 in) |
| 1957 | 30.1 mm (1.2 in) |
| 1958 | 5.8 mm (0.23 in) |
| 1959 | 21.2 mm (0.8 in) |
| 1960 | 26.5 mm (1.0 in) |
| 1961 | 10.4 mm (0.4 in) |
| 1962 | 12.4 mm (0.5 in) |
| 1963 | 16.8 mm (0.7 in) |
| 1964 | 14.6 mm (0.6 in) |
| 1965 | 10.3 mm (0.4 in) |
| 1966 | 18.4 mm (0.7 in) |
| 1967 | 15.8 mm (0.6 in) |
| 1968 | 32.0 mm (1.3 in) |
| 1969 | 13.7 mm (0.5 in) |
| 1970 | 10.9 mm (0.4 in) |
| 1971 | 16.1 mm (0.6 in) |
| 1972 | 22.8 mm (0.9 in) |
| 1973 | 26.9 mm (1.1 in) |
| 1974 | 11.9 mm (0.5 in) |
| 1975 | 32.1 mm (1.3 in) |
| 1976 | 13.6 mm (0.5 in) |
| 1977 | 25.6 mm (1.0 in) |
| 1978 | 19.2 mm (0.8 in) |
| 1979 | 26.1 mm (1.0 in) |
| 1980 | 14.9 mm (0.6 in) |
| 1981 | 19.3 mm (0.8 in) |
| 1982 | 13.4 mm (0.5 in) |
| 1983 | 15.2 mm (0.6 in) |
| 1984 | 14.6 mm (0.6 in) |
| 1985 | 12.7 mm (0.5 in) |
| 1986 | 12.4 mm (0.5 in) |
| 1987 | 12.6 mm (0.5 in) |
| 1988 | 17.7 mm (0.7 in) |
| 1989 | 18.4 mm (0.7 in) |
| 1990 | 29.1 mm (1.1 in) |
| 1991 | 12.9 mm (0.5 in) |
| 1992 | 15.4 mm (0.6 in) |
| 1993 | 18.4 mm (0.7 in) |
| 1994 | 26.7 mm (1.1 in) |
| 1995 | 24.3 mm (1.0 in) |
| 1996 | 14.6 mm (0.6 in) |
| 1997 | 26.0 mm (1.0 in) |
| 1998 | 39.1 mm (1.5 in) |
| 1999 | 14.7 mm (0.6 in) |
| 2000 | 9.5 mm (0.37 in) |
| 2001 | 11.3 mm (0.4 in) |
| 2002 | 29.5 mm (1.2 in) |
| 2003 | 13.4 mm (0.5 in) |
| 2004 | 23.1 mm (0.9 in) |
| 2005 | 11.0 mm (0.4 in) |
| 2006 | 16.9 mm (0.7 in) |
| 2007 | 18.9 mm (0.7 in) |
| 2008 | 25.4 mm (1.0 in) |
| 2009 | 11.4 mm (0.4 in) |
| 2010 | 17.1 mm (0.7 in) |
| 2011 | 18.7 mm (0.7 in) |
| 2012 | 25.6 mm (1.0 in) |
| 2013 | 34.1 mm (1.3 in) |
| 2014 | 9.4 mm (0.37 in) |
| 2015 | 33.2 mm (1.3 in) |
| 2016 | 15.9 mm (0.6 in) |
| 2017 | 28.1 mm (1.1 in) |
| 2018 | 20.9 mm (0.8 in) |
| 2019 | 19.1 mm (0.8 in) |
| 2020 | 23.9 mm (0.9 in) |
| 2021 | 22.1 mm (0.9 in) |
| 2022 | 39.1 mm (1.5 in) |
| 2023 | 17.0 mm (0.7 in) |
| 2024 | 17.0 mm (0.7 in) |
| 2025 | 22.1 mm (0.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1944 | 24.4 mm (1.0 in) |
| 1945 | 30.0 mm (1.2 in) |
| 1946 | 62.8 mm (2.5 in) |
| 1947 | 22.5 mm (0.9 in) |
| 1948 | 31.9 mm (1.3 in) |
| 1949 | 32.3 mm (1.3 in) |
| 1950 | 45.1 mm (1.8 in) |
| 1951 | 23.2 mm (0.9 in) |
| 1952 | 37.0 mm (1.5 in) |
| 1953 | 66.8 mm (2.6 in) |
| 1954 | 28.3 mm (1.1 in) |
| 1955 | 23.6 mm (0.9 in) |
| 1956 | 20.1 mm (0.8 in) |
| 1957 | 55.6 mm (2.2 in) |
| 1958 | 9.2 mm (0.36 in) |
| 1959 | 29.6 mm (1.2 in) |
| 1960 | 41.4 mm (1.6 in) |
| 1961 | 22.7 mm (0.9 in) |
| 1962 | 29.3 mm (1.2 in) |
| 1963 | 33.7 mm (1.3 in) |
| 1964 | 27.5 mm (1.1 in) |
| 1965 | 24.6 mm (1.0 in) |
| 1966 | 26.1 mm (1.0 in) |
| 1967 | 30.3 mm (1.2 in) |
| 1968 | 64.8 mm (2.6 in) |
| 1969 | 18.9 mm (0.7 in) |
| 1970 | 25.9 mm (1.0 in) |
| 1971 | 24.8 mm (1.0 in) |
| 1972 | 51.6 mm (2.0 in) |
| 1973 | 27.2 mm (1.1 in) |
| 1974 | 21.9 mm (0.9 in) |
| 1975 | 56.6 mm (2.2 in) |
| 1976 | 18.7 mm (0.7 in) |
| 1977 | 33.8 mm (1.3 in) |
| 1978 | 45.8 mm (1.8 in) |
| 1979 | 48.6 mm (1.9 in) |
| 1980 | 31.5 mm (1.2 in) |
| 1981 | 26.8 mm (1.1 in) |
| 1982 | 29.6 mm (1.2 in) |
| 1983 | 19.8 mm (0.8 in) |
| 1984 | 34.9 mm (1.4 in) |
| 1985 | 25.0 mm (1.0 in) |
| 1986 | 34.0 mm (1.3 in) |
| 1987 | 21.0 mm (0.8 in) |
| 1988 | 34.5 mm (1.4 in) |
| 1989 | 31.3 mm (1.2 in) |
| 1990 | 50.7 mm (2.0 in) |
| 1991 | 19.0 mm (0.7 in) |
| 1992 | 22.5 mm (0.9 in) |
| 1993 | 27.9 mm (1.1 in) |
| 1994 | 28.4 mm (1.1 in) |
| 1995 | 29.8 mm (1.2 in) |
| 1996 | 17.3 mm (0.7 in) |
| 1997 | 34.7 mm (1.4 in) |
| 1998 | 48.0 mm (1.9 in) |
| 1999 | 32.6 mm (1.3 in) |
| 2000 | 23.7 mm (0.9 in) |
| 2001 | 24.1 mm (0.9 in) |
| 2002 | 42.1 mm (1.7 in) |
| 2003 | 23.0 mm (0.9 in) |
| 2004 | 30.4 mm (1.2 in) |
| 2005 | 27.0 mm (1.1 in) |
| 2006 | 44.3 mm (1.7 in) |
| 2007 | 42.6 mm (1.7 in) |
| 2008 | 34.2 mm (1.3 in) |
| 2009 | 35.9 mm (1.4 in) |
| 2010 | 32.1 mm (1.3 in) |
| 2011 | 40.1 mm (1.6 in) |
| 2012 | 37.4 mm (1.5 in) |
| 2013 | 44.4 mm (1.7 in) |
| 2014 | 37.8 mm (1.5 in) |
| 2015 | 43.3 mm (1.7 in) |
| 2016 | 38.5 mm (1.5 in) |
| 2017 | 41.1 mm (1.6 in) |
| 2018 | 51.7 mm (2.0 in) |
| 2019 | 32.1 mm (1.3 in) |
| 2020 | 36.1 mm (1.4 in) |
| 2021 | 35.8 mm (1.4 in) |
| 2022 | 49.2 mm (1.9 in) |
| 2023 | 34.0 mm (1.3 in) |
| 2024 | 37.7 mm (1.5 in) |
| 2025 | 22.1 mm (0.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1944 | 30 days |
| 1945 | 35 days |
| 1946 | 47 days |
| 1947 | 41 days |
| 1948 | 25 days |
| 1949 | 42 days |
| 1950 | 90 days |
| 1951 | 75 days |
| 1952 | 30 days |
| 1953 | 76 days |
| 1954 | 12 days |
| 1955 | 15 days |
| 1956 | 22 days |
| 1957 | 27 days |
| 1958 | 42 days |
| 1959 | 28 days |
| 1960 | 31 days |
| 1961 | 54 days |
| 1962 | 46 days |
| 1963 | 36 days |
| 1964 | 85 days |
| 1965 | 42 days |
| 1966 | 45 days |
| 1967 | 20 days |
| 1968 | 24 days |
| 1969 | 62 days |
| 1970 | 41 days |
| 1971 | 48 days |
| 1972 | 41 days |
| 1973 | 34 days |
| 1974 | 15 days |
| 1975 | 34 days |
| 1976 | 51 days |
| 1977 | 27 days |
| 1978 | 36 days |
| 1979 | 42 days |
| 1980 | 49 days |
| 1981 | 25 days |
| 1982 | 43 days |
| 1983 | 67 days |
| 1984 | 47 days |
| 1985 | 46 days |
| 1986 | 34 days |
| 1987 | 22 days |
| 1988 | 73 days |
| 1989 | 42 days |
| 1990 | 35 days |
| 1991 | 35 days |
| 1992 | 41 days |
| 1993 | 32 days |
| 1994 | 55 days |
| 1995 | 52 days |
| 1996 | 29 days |
| 1997 | 37 days |
| 1998 | 56 days |
| 1999 | 27 days |
| 2000 | 51 days |
| 2001 | 48 days |
| 2002 | 27 days |
| 2003 | 36 days |
| 2004 | 53 days |
| 2005 | 110 days |
| 2006 | 37 days |
| 2007 | 36 days |
| 2008 | 45 days |
| 2009 | 42 days |
| 2010 | 75 days |
| 2011 | 25 days |
| 2012 | 61 days |
| 2013 | 40 days |
| 2014 | 26 days |
| 2015 | 60 days |
| 2016 | 40 days |
| 2017 | 38 days |
| 2018 | 22 days |
| 2019 | 27 days |
| 2020 | 55 days |
| 2021 | 30 days |
| 2022 | 31 days |
| 2023 | 25 days |
| 2024 | 16 days |
| 2025 | 27 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
61 years with a frostAcross 61 years with a frost, the median last spring frost at Omolon falls on 6 June and the median first autumn frost on 3 August, which leaves a median of 51 days between them.
In 1988 to 2018 the median growing season was 57 days. That is 11 days more than in 1945 to 1986.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1945 to 1986) | Recent period (1988 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 6 June | 8 June | 5 June | 3 days earlier | -0.7 days per decade |
| First autumn frost | 3 August | 22 July | 4 August | 13 days later | +1.2 days per decade |
| Growing days | 51 days | 46 days | 57 days | 11 days more | +2.0 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
73 years, 1945 to 2024A day with at least 18.3 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 43.3 mm (1.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 18.3 mm (0.7 in) | |
| 5 years | 25.2 mm (1.0 in) | |
| 10 years | 29.7 mm (1.2 in) | |
| 25 years | 35.2 mm (1.4 in) | |
| 50 years | 39.3 mm (1.5 in) | |
| 100 years | 43.3 mm (1.7 in) | Longer than the 73 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, 73 years of values from 1945 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: 39.1 mm (1.5 in) in 1998; 39.1 mm (1.5 in) in 2022; 34.1 mm (1.3 in) in 2013.
Climate Twins
2004 to 2018 against 1961 to 1990Over 2004 to 2018, Omolon had a mean temperature of -10.6 C (12.9 F) and 299.9 mm (11.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Zyrjanka (Russia, 447 km away), Toko (Russia, 1,856 km away) and Chumpuruk (Russia, 2,032 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Zyrjanka | Russia | 447 km (278 mi) | -11.2 C (11.9 F) | 254.4 mm (10.0 in) | 1.85 |
| Toko | Russia | 1,856 km (1,153 mi) | -10.9 C (12.3 F) | 464.7 mm (18.3 in) | 1.90 |
| Chumpuruk | Russia | 2,032 km (1,263 mi) | -10.6 C (13.0 F) | 254.9 mm (10.0 in) | 1.93 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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).