Bitter Lakes Wl Refuge Weather Records (USC00290992)
Record envelope, standing records and threshold days for Bitter Lakes Wl Refuge (USC00290992), New Mexico, United States, with 75 years of record.
Key Facts for Bitter Lakes Wl Refuge
- Bitter Lakes Wl Refuge (USC00290992) is a weather station in New Mexico, United States at 33.46 latitude and -104.40 longitude, 1,117 m (3,664 ft) above sea level.
- The station reports from 1950 to 2024, 75 years of record.
- 1,464 records set at Bitter Lakes Wl Refuge still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Bitter Lakes Wl Refuge set a daily record high minimum temperature of 22.2 C (72.0 F) on 20 June 2024.
About the Station
- Location: New Mexico, United States, 33.46 latitude, -104.40 longitude.
- Elevation: 1,117 m (3,664 ft).
- Period of record: 1950 to 2024, 75 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 | 30.0 C (86.0 F) | -30.0 C (-22.0 F) | n/a | n/a |
| Feb | 31.7 C (89.1 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Apr | 37.8 C (100.0 F) | -12.2 C (10.0 F) | n/a | n/a |
| May | 43.3 C (109.9 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jun | 45.6 C (114.1 F) | 3.9 C (39.0 F) | n/a | n/a |
| Jul | 44.4 C (111.9 F) | 6.1 C (43.0 F) | n/a | n/a |
| Aug | 43.3 C (109.9 F) | 4.4 C (39.9 F) | n/a | n/a |
| Sep | 41.1 C (106.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Oct | 38.3 C (100.9 F) | -12.2 C (10.0 F) | n/a | n/a |
| Nov | 31.7 C (89.1 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | -23.9 C (-11.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1950 | 6 |
| 1951 | 29 |
| 1952 | 21 |
| 1953 | 18 |
| 1954 | 8 |
| 1955 | 16 |
| 1956 | 17 |
| 1957 | 19 |
| 1958 | 17 |
| 1959 | 27 |
| 1960 | 14 |
| 1961 | 21 |
| 1962 | 33 |
| 1963 | 29 |
| 1964 | 9 |
| 1965 | 25 |
| 1966 | 13 |
| 1967 | 17 |
| 1968 | 15 |
| 1969 | 22 |
| 1970 | 16 |
| 1971 | 24 |
| 1972 | 24 |
| 1973 | 21 |
| 1974 | 26 |
| 1975 | 24 |
| 1976 | 22 |
| 1977 | 15 |
| 1978 | 17 |
| 1979 | 28 |
| 1980 | 37 |
| 1981 | 24 |
| 1982 | 16 |
| 1983 | 27 |
| 1984 | 21 |
| 1985 | 16 |
| 1986 | 24 |
| 1987 | 18 |
| 1988 | 27 |
| 1989 | 23 |
| 1990 | 27 |
| 1991 | 20 |
| 1992 | 14 |
| 1993 | 12 |
| 1994 | 18 |
| 1995 | 14 |
| 1996 | 21 |
| 1997 | 20 |
| 1998 | 19 |
| 1999 | 16 |
| 2000 | 35 |
| 2001 | 18 |
| 2002 | 26 |
| 2003 | 26 |
| 2004 | 21 |
| 2005 | 17 |
| 2006 | 23 |
| 2007 | 18 |
| 2008 | 11 |
| 2009 | 17 |
| 2010 | 24 |
| 2011 | 25 |
| 2012 | 13 |
| 2013 | 25 |
| 2014 | 18 |
| 2015 | 13 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 14 |
| 2020 | 34 |
| 2021 | 25 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 7 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1981-06-22 | Record high maximum temperature | Record high maximum temperature 45.0 C (113.0 F) |
| 1988-02-05 | Record daily snowfall | Record daily snowfall 40.6 cm (16.0 in) |
| 1988-02-05 | Record snow depth | Record snow depth 40.6 cm (16.0 in) |
| 1994-06-28 | Record high maximum temperature | Record high maximum temperature 45.6 C (114.1 F) |
| 2013-09-12 | Record daily precipitation | Record daily precipitation 127.0 mm (5.0 in) |
Wettest Day of Each Month
Sep: 127.0 mm (5.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 31.8 mm (1.3 in) | 9 January 2021 |
| Feb | 36.3 mm (1.4 in) | 5 February 1988 |
| Mar | 51.8 mm (2.0 in) | 8 March 2001 |
| Apr | 80.0 mm (3.1 in) | 4 April 2004 |
| May | 120.4 mm (4.7 in) | 23 May 2014 |
| Jun | 101.1 mm (4.0 in) | 29 June 2004 |
| Jul | 99.1 mm (3.9 in) | 10 July 1999 |
| Aug | 71.1 mm (2.8 in) | 12 August 1977 |
| Sep | 127.0 mm (5.0 in) | 12 September 2013 |
| Oct | 99.8 mm (3.9 in) | 7 October 1954 |
| Nov | 31.5 mm (1.2 in) | 16 November 1991 |
| Dec | 24.6 mm (1.0 in) | 6 December 1969 |
Period of Record Coverage
1950 to 2024| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1950 | 30 | 8% | No |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 315 | 86% | No |
| 1956 | 363 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 360 | 99% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 358 | 98% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 344 | 94% | Yes |
| 1965 | 316 | 87% | No |
| 1966 | 299 | 82% | No |
| 1967 | 289 | 79% | No |
| 1968 | 283 | 77% | No |
| 1969 | 345 | 95% | Yes |
| 1970 | 311 | 85% | No |
| 1971 | 276 | 76% | No |
| 1972 | 327 | 89% | No |
| 1973 | 357 | 98% | Yes |
| 1974 | 359 | 98% | Yes |
| 1975 | 362 | 99% | Yes |
| 1976 | 351 | 96% | Yes |
| 1977 | 359 | 98% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 361 | 99% | Yes |
| 1983 | 352 | 96% | Yes |
| 1984 | 319 | 87% | No |
| 1985 | 325 | 89% | No |
| 1986 | 328 | 90% | No |
| 1987 | 313 | 86% | No |
| 1988 | 264 | 72% | No |
| 1989 | 308 | 84% | No |
| 1990 | 353 | 97% | Yes |
| 1991 | 359 | 98% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 348 | 95% | Yes |
| 1994 | 314 | 86% | No |
| 1995 | 234 | 64% | No |
| 1996 | 231 | 63% | No |
| 1997 | 264 | 72% | No |
| 1998 | 327 | 90% | No |
| 1999 | 300 | 82% | No |
| 2000 | 321 | 88% | No |
| 2001 | 332 | 91% | Yes |
| 2002 | 319 | 87% | No |
| 2003 | 333 | 91% | Yes |
| 2004 | 331 | 90% | Yes |
| 2005 | 305 | 84% | No |
| 2006 | 350 | 96% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 341 | 93% | Yes |
| 2009 | 352 | 96% | Yes |
| 2010 | 343 | 94% | Yes |
| 2011 | 346 | 95% | Yes |
| 2012 | 325 | 89% | No |
| 2013 | 326 | 89% | No |
| 2014 | 357 | 98% | Yes |
| 2015 | 362 | 99% | Yes |
| 2016 | 280 | 77% | No |
| 2017 | 152 | 42% | No |
| 2018 | 172 | 47% | No |
| 2019 | 175 | 48% | No |
| 2020 | 298 | 81% | No |
| 2021 | 311 | 85% | No |
| 2022 | 276 | 76% | No |
| 2023 | 177 | 48% | No |
| 2024 | 76 | 21% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 June 2024 | Bitter Lakes Wl Refuge, US | daily high min | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 66 years | 29 of 100 (Routine) |
| 5 June 2024 | Bitter Lakes Wl Refuge, US | daily high max (Tie) | 40.0 C (104.0 F) | tie | 63 years | 6 of 100 (Routine) |
| 22 April 2024 | Bitter Lakes Wl Refuge, US | daily low max | 14.4 C (57.9 F) | 0.6 C (1.1 F) | 42 years | 20 of 100 (Routine) |
| 10 April 2024 | Bitter Lakes Wl Refuge, US | daily low min | -2.8 C (27.0 F) | 0.6 C (1.1 F) | 72 years | 29 of 100 (Routine) |
| 10 April 2024 | Bitter Lakes Wl Refuge, US | daily rain | 7.6 mm (0.30 in) | 5.3 mm (0.21 in) | 27 years | 20 of 100 (Routine) |
| 10 April 2024 | Bitter Lakes Wl Refuge, US | daily low max | 6.7 C (44.1 F) | 2.2 C (4.0 F) | 20 years | 17 of 100 (Routine) |
| 26 March 2024 | Bitter Lakes Wl Refuge, US | daily low min (Tie) | -7.8 C (18.0 F) | tie | 65 years | 6 of 100 (Routine) |
| 6 March 2024 | Bitter Lakes Wl Refuge, US | daily high min | 12.8 C (55.0 F) | 1.1 C (2.0 F) | 7 years | 11 of 100 (Routine) |
| 22 February 2024 | Bitter Lakes Wl Refuge, US | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 6 years | 10 of 100 (Routine) |
| 12 February 2024 | Bitter Lakes Wl Refuge, US | daily snow depth | 12.7 cm (5.0 in) | 5.1 cm (2.0 in) | 56 years | 29 of 100 (Routine) |
| 19 January 2024 | Bitter Lakes Wl Refuge, US | daily rain | 25.4 mm (1.0 in) | 8.4 mm (0.33 in) | 33 years | 33 of 100 (Routine) |
| 3 January 2024 | Bitter Lakes Wl Refuge, US | daily high min | 0.6 C (33.1 F) | 1.2 C (2.2 F) | 68 years | 29 of 100 (Routine) |
| 8 November 2023 | Bitter Lakes Wl Refuge, US | daily high min | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 2 years | 7 of 100 (Routine) |
| 7 November 2023 | Bitter Lakes Wl Refuge, US | daily high max | 31.1 C (88.0 F) | 1.7 C (3.1 F) | 48 years | 23 of 100 (Routine) |
| 6 November 2023 | Bitter Lakes Wl Refuge, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 34 years | 4 of 100 (Routine) |
| 25 October 2023 | Bitter Lakes Wl Refuge, US | daily high min | 10.6 C (51.1 F) | 0.6 C (1.1 F) | 30 years | 17 of 100 (Routine) |
| 30 September 2023 | Bitter Lakes Wl Refuge, US | daily rain | 43.2 mm (1.7 in) | 30.2 mm (1.2 in) | 18 years | 37 of 100 (Notable) |
| 12 September 2023 | Bitter Lakes Wl Refuge, US | daily high min (Tie) | 18.3 C (64.9 F) | tie | 29 years | 3 of 100 (Routine) |
| 8 September 2023 | Bitter Lakes Wl Refuge, US | monthly high max (Tie) | 41.1 C (106.0 F) | tie | 40 years | 7 of 100 (Routine) |
| 31 August 2023 | Bitter Lakes Wl Refuge, US | daily high min | 21.1 C (70.0 F) | 2.8 C (5.0 F) | 33 years | 28 of 100 (Routine) |
Climate Trend
46 complete years, 1952 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1952 | 15.5 C | +0.22 C |
| 1953 | 15.2 C | -0.07 C |
| 1954 | 16.4 C | +1.10 C |
| 1956 | 15.7 C | +0.34 C |
| 1957 | 15.8 C | +0.46 C |
| 1958 | 15.5 C | +0.20 C |
| 1959 | 14.8 C | -0.54 C |
| 1960 | 15.2 C | -0.15 C |
| 1961 | 15.1 C | -0.23 C |
| 1962 | 15.8 C | +0.45 C |
| 1963 | 16.0 C | +0.65 C |
| 1964 | 15.0 C | -0.28 C |
| 1965 | 15.8 C | +0.47 C |
| 1969 | 15.4 C | +0.11 C |
| 1970 | 14.6 C | -0.69 C |
| 1972 | 15.3 C | -0.06 C |
| 1973 | 14.2 C | -1.08 C |
| 1975 | 13.5 C | -1.86 C |
| 1976 | 14.1 C | -1.26 C |
| 1977 | 15.6 C | +0.24 C |
| 1978 | 14.7 C | -0.64 C |
| 1979 | 14.1 C | -1.18 C |
| 1980 | 15.0 C | -0.31 C |
| 1981 | 15.4 C | +0.12 C |
| 1982 | 14.9 C | -0.43 C |
| 1983 | 15.0 C | -0.34 C |
| 1985 | 15.3 C | -0.02 C |
| 1986 | 15.4 C | +0.11 C |
| 1987 | 14.6 C | -0.70 C |
| 1990 | 15.4 C | +0.06 C |
| 1991 | 14.9 C | -0.39 C |
| 1992 | 14.7 C | -0.61 C |
| 1998 | 16.0 C | +0.71 C |
| 1999 | 15.9 C | +0.55 C |
| 2000 | 16.7 C | +1.39 C |
| 2001 | 16.5 C | +1.20 C |
| 2003 | 16.9 C | +1.61 C |
| 2004 | 15.6 C | +0.30 C |
| 2006 | 16.3 C | +1.02 C |
| 2007 | 15.6 C | +0.27 C |
| 2008 | 15.4 C | +0.09 C |
| 2009 | 15.3 C | 0.00 C |
| 2011 | 15.4 C | +0.06 C |
| 2014 | 14.6 C | -0.71 C |
| 2015 | 15.0 C | -0.31 C |
| 2021 | 15.6 C | +0.28 C |
The fitted trend in annual mean temperature here over 1952 to 2021 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (-0.1 to 0.2) per decade | 0.1 F (-0.1 to 0.3) per decade | 1952 to 2021 | 46 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.2 to 0.1) per decade | -0.1 F (-0.4 to 0.1) per decade | 1952 to 2021 | 46 | Not clearly different from zero |
| Mean daily minimum | 0.18 C (0.04 to 0.31) per decade | 0.3 F (0.1 to 0.6) per decade | 1952 to 2021 | 46 | 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
1950 to 2024| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1994 | 41.7 C (107.1 F) | 75 |
| Coldest night (TNn) | -30.0 C (-22.0 F) | 1962 | -17.2 C (1.0 F) | 75 |
| Wettest day (Rx1day) | 127.0 mm (5.0 in) | 2013 | 44.5 mm (1.8 in) | 75 |
| Wettest five days (Rx5day) | 159.5 mm (6.3 in) | 1992 | 59.4 mm (2.3 in) | 75 |
| Longest dry spell (CDD) | 143 days | 2011 | 53 days | 75 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1950 | 28.9 C (84.0 F) |
| 1951 | 43.3 C (109.9 F) |
| 1952 | 41.7 C (107.1 F) |
| 1953 | 42.2 C (108.0 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 40.0 C (104.0 F) |
| 1956 | 40.0 C (104.0 F) |
| 1957 | 42.8 C (109.0 F) |
| 1958 | 44.4 C (111.9 F) |
| 1959 | 40.6 C (105.1 F) |
| 1960 | 43.3 C (109.9 F) |
| 1961 | 42.2 C (108.0 F) |
| 1962 | 40.0 C (104.0 F) |
| 1963 | 42.2 C (108.0 F) |
| 1964 | 41.7 C (107.1 F) |
| 1965 | 39.4 C (102.9 F) |
| 1966 | 41.7 C (107.1 F) |
| 1967 | 38.9 C (102.0 F) |
| 1968 | 42.8 C (109.0 F) |
| 1969 | 42.8 C (109.0 F) |
| 1970 | 41.1 C (106.0 F) |
| 1971 | 41.1 C (106.0 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 41.7 C (107.1 F) |
| 1974 | 41.1 C (106.0 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 40.6 C (105.1 F) |
| 1977 | 42.8 C (109.0 F) |
| 1978 | 42.2 C (108.0 F) |
| 1979 | 40.0 C (104.0 F) |
| 1980 | 44.4 C (111.9 F) |
| 1981 | 45.0 C (113.0 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 38.9 C (102.0 F) |
| 1985 | 42.8 C (109.0 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 42.2 C (108.0 F) |
| 1988 | 38.3 C (100.9 F) |
| 1989 | 42.2 C (108.0 F) |
| 1990 | 43.3 C (109.9 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 41.1 C (106.0 F) |
| 1993 | 41.1 C (106.0 F) |
| 1994 | 45.6 C (114.1 F) |
| 1995 | 43.3 C (109.9 F) |
| 1996 | 43.3 C (109.9 F) |
| 1997 | 39.4 C (102.9 F) |
| 1998 | 43.9 C (111.0 F) |
| 1999 | 41.7 C (107.1 F) |
| 2000 | 43.3 C (109.9 F) |
| 2001 | 41.1 C (106.0 F) |
| 2002 | 43.3 C (109.9 F) |
| 2003 | 41.7 C (107.1 F) |
| 2004 | 40.6 C (105.1 F) |
| 2005 | 42.8 C (109.0 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 42.2 C (108.0 F) |
| 2008 | 42.8 C (109.0 F) |
| 2009 | 41.1 C (106.0 F) |
| 2010 | 42.2 C (108.0 F) |
| 2011 | 42.8 C (109.0 F) |
| 2012 | 41.1 C (106.0 F) |
| 2013 | 42.2 C (108.0 F) |
| 2014 | 40.6 C (105.1 F) |
| 2015 | 41.1 C (106.0 F) |
| 2016 | 42.8 C (109.0 F) |
| 2017 | 38.3 C (100.9 F) |
| 2018 | 41.1 C (106.0 F) |
| 2019 | 42.8 C (109.0 F) |
| 2020 | 43.9 C (111.0 F) |
| 2021 | 43.3 C (109.9 F) |
| 2022 | 43.3 C (109.9 F) |
| 2023 | 44.4 C (111.9 F) |
| 2024 | 42.8 C (109.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1950 | -16.7 C (1.9 F) |
| 1951 | -24.4 C (-11.9 F) |
| 1952 | -14.4 C (6.1 F) |
| 1953 | -23.3 C (-9.9 F) |
| 1954 | -17.2 C (1.0 F) |
| 1955 | -11.1 C (12.0 F) |
| 1956 | -17.8 C (0.0 F) |
| 1957 | -17.8 C (0.0 F) |
| 1958 | -16.1 C (3.0 F) |
| 1959 | -15.6 C (3.9 F) |
| 1960 | -20.6 C (-5.1 F) |
| 1961 | -19.4 C (-2.9 F) |
| 1962 | -30.0 C (-22.0 F) |
| 1963 | -30.0 C (-22.0 F) |
| 1964 | -21.7 C (-7.1 F) |
| 1965 | -20.6 C (-5.1 F) |
| 1966 | -24.4 C (-11.9 F) |
| 1967 | -15.6 C (3.9 F) |
| 1968 | -15.0 C (5.0 F) |
| 1969 | -18.9 C (-2.0 F) |
| 1970 | -20.0 C (-4.0 F) |
| 1971 | -22.8 C (-9.0 F) |
| 1972 | -20.6 C (-5.1 F) |
| 1973 | -20.0 C (-4.0 F) |
| 1974 | -18.3 C (-0.9 F) |
| 1975 | -17.2 C (1.0 F) |
| 1976 | -16.7 C (1.9 F) |
| 1977 | -20.0 C (-4.0 F) |
| 1978 | -23.9 C (-11.0 F) |
| 1979 | -27.8 C (-18.0 F) |
| 1980 | -21.1 C (-6.0 F) |
| 1981 | -16.7 C (1.9 F) |
| 1982 | -22.2 C (-8.0 F) |
| 1983 | -23.3 C (-9.9 F) |
| 1984 | -17.8 C (0.0 F) |
| 1985 | -18.3 C (-0.9 F) |
| 1986 | -12.2 C (10.0 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -14.4 C (6.1 F) |
| 1989 | -20.6 C (-5.1 F) |
| 1990 | -20.6 C (-5.1 F) |
| 1991 | -12.2 C (10.0 F) |
| 1992 | -16.1 C (3.0 F) |
| 1993 | -16.1 C (3.0 F) |
| 1994 | -18.3 C (-0.9 F) |
| 1995 | -11.7 C (10.9 F) |
| 1996 | -17.2 C (1.0 F) |
| 1997 | -22.8 C (-9.0 F) |
| 1998 | -13.3 C (8.1 F) |
| 1999 | -13.9 C (7.0 F) |
| 2000 | -14.4 C (6.1 F) |
| 2001 | -12.8 C (9.0 F) |
| 2002 | -14.4 C (6.1 F) |
| 2003 | -12.8 C (9.0 F) |
| 2004 | -13.9 C (7.0 F) |
| 2005 | -19.4 C (-2.9 F) |
| 2006 | -15.0 C (5.0 F) |
| 2007 | -12.8 C (9.0 F) |
| 2008 | -15.0 C (5.0 F) |
| 2009 | -15.6 C (3.9 F) |
| 2010 | -15.0 C (5.0 F) |
| 2011 | -24.4 C (-11.9 F) |
| 2012 | -17.8 C (0.0 F) |
| 2013 | -14.4 C (6.1 F) |
| 2014 | -19.4 C (-2.9 F) |
| 2015 | -18.3 C (-0.9 F) |
| 2016 | -16.7 C (1.9 F) |
| 2017 | -12.8 C (9.0 F) |
| 2018 | -15.6 C (3.9 F) |
| 2019 | -15.0 C (5.0 F) |
| 2020 | -17.8 C (0.0 F) |
| 2021 | -15.6 C (3.9 F) |
| 2022 | -20.6 C (-5.1 F) |
| 2023 | -14.4 C (6.1 F) |
| 2024 | -8.9 C (16.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1950 | 0.0 mm (0.00 in) |
| 1951 | 51.3 mm (2.0 in) |
| 1952 | 22.4 mm (0.9 in) |
| 1953 | 39.9 mm (1.6 in) |
| 1954 | 99.8 mm (3.9 in) |
| 1955 | 104.4 mm (4.1 in) |
| 1956 | 13.7 mm (0.5 in) |
| 1957 | 22.6 mm (0.9 in) |
| 1958 | 45.7 mm (1.8 in) |
| 1959 | 35.6 mm (1.4 in) |
| 1960 | 89.7 mm (3.5 in) |
| 1961 | 23.4 mm (0.9 in) |
| 1962 | 44.5 mm (1.8 in) |
| 1963 | 35.6 mm (1.4 in) |
| 1964 | 19.6 mm (0.8 in) |
| 1965 | 51.6 mm (2.0 in) |
| 1966 | 51.8 mm (2.0 in) |
| 1967 | 76.2 mm (3.0 in) |
| 1968 | 75.2 mm (3.0 in) |
| 1969 | 58.4 mm (2.3 in) |
| 1970 | 16.0 mm (0.6 in) |
| 1971 | 63.5 mm (2.5 in) |
| 1972 | 55.1 mm (2.2 in) |
| 1973 | 34.3 mm (1.4 in) |
| 1974 | 52.1 mm (2.1 in) |
| 1975 | 30.5 mm (1.2 in) |
| 1976 | 36.3 mm (1.4 in) |
| 1977 | 71.1 mm (2.8 in) |
| 1978 | 50.8 mm (2.0 in) |
| 1979 | 26.4 mm (1.0 in) |
| 1980 | 31.8 mm (1.3 in) |
| 1981 | 57.2 mm (2.3 in) |
| 1982 | 37.1 mm (1.5 in) |
| 1983 | 64.8 mm (2.6 in) |
| 1984 | 46.0 mm (1.8 in) |
| 1985 | 46.2 mm (1.8 in) |
| 1986 | 46.7 mm (1.8 in) |
| 1987 | 43.2 mm (1.7 in) |
| 1988 | 36.3 mm (1.4 in) |
| 1989 | 50.8 mm (2.0 in) |
| 1990 | 27.9 mm (1.1 in) |
| 1991 | 48.3 mm (1.9 in) |
| 1992 | 79.8 mm (3.1 in) |
| 1993 | 64.5 mm (2.5 in) |
| 1994 | 25.9 mm (1.0 in) |
| 1995 | 31.0 mm (1.2 in) |
| 1996 | 42.7 mm (1.7 in) |
| 1997 | 38.9 mm (1.5 in) |
| 1998 | 44.5 mm (1.8 in) |
| 1999 | 99.1 mm (3.9 in) |
| 2000 | 46.0 mm (1.8 in) |
| 2001 | 51.8 mm (2.0 in) |
| 2002 | 40.1 mm (1.6 in) |
| 2003 | 33.5 mm (1.3 in) |
| 2004 | 101.1 mm (4.0 in) |
| 2005 | 42.9 mm (1.7 in) |
| 2006 | 42.4 mm (1.7 in) |
| 2007 | 54.4 mm (2.1 in) |
| 2008 | 35.6 mm (1.4 in) |
| 2009 | 53.3 mm (2.1 in) |
| 2010 | 45.7 mm (1.8 in) |
| 2011 | 15.2 mm (0.6 in) |
| 2012 | 17.8 mm (0.7 in) |
| 2013 | 127.0 mm (5.0 in) |
| 2014 | 120.4 mm (4.7 in) |
| 2015 | 34.0 mm (1.3 in) |
| 2016 | 22.9 mm (0.9 in) |
| 2017 | 24.9 mm (1.0 in) |
| 2018 | 50.8 mm (2.0 in) |
| 2019 | 86.1 mm (3.4 in) |
| 2020 | 15.2 mm (0.6 in) |
| 2021 | 31.8 mm (1.3 in) |
| 2022 | 44.2 mm (1.7 in) |
| 2023 | 44.5 mm (1.8 in) |
| 2024 | 25.4 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1950 | 0.0 mm (0.00 in) |
| 1951 | 68.4 mm (2.7 in) |
| 1952 | 25.9 mm (1.0 in) |
| 1953 | 59.7 mm (2.4 in) |
| 1954 | 131.0 mm (5.2 in) |
| 1955 | 104.4 mm (4.1 in) |
| 1956 | 13.7 mm (0.5 in) |
| 1957 | 36.5 mm (1.4 in) |
| 1958 | 67.1 mm (2.6 in) |
| 1959 | 59.4 mm (2.3 in) |
| 1960 | 137.7 mm (5.4 in) |
| 1961 | 35.0 mm (1.4 in) |
| 1962 | 57.0 mm (2.2 in) |
| 1963 | 48.6 mm (1.9 in) |
| 1964 | 33.3 mm (1.3 in) |
| 1965 | 60.0 mm (2.4 in) |
| 1966 | 62.3 mm (2.5 in) |
| 1967 | 93.3 mm (3.7 in) |
| 1968 | 108.0 mm (4.3 in) |
| 1969 | 76.4 mm (3.0 in) |
| 1970 | 29.2 mm (1.1 in) |
| 1971 | 75.8 mm (3.0 in) |
| 1972 | 88.6 mm (3.5 in) |
| 1973 | 37.9 mm (1.5 in) |
| 1974 | 93.3 mm (3.7 in) |
| 1975 | 43.5 mm (1.7 in) |
| 1976 | 55.6 mm (2.2 in) |
| 1977 | 96.5 mm (3.8 in) |
| 1978 | 80.5 mm (3.2 in) |
| 1979 | 32.3 mm (1.3 in) |
| 1980 | 56.4 mm (2.2 in) |
| 1981 | 95.8 mm (3.8 in) |
| 1982 | 39.9 mm (1.6 in) |
| 1983 | 84.6 mm (3.3 in) |
| 1984 | 100.3 mm (3.9 in) |
| 1985 | 67.1 mm (2.6 in) |
| 1986 | 71.6 mm (2.8 in) |
| 1987 | 52.6 mm (2.1 in) |
| 1988 | 42.9 mm (1.7 in) |
| 1989 | 62.2 mm (2.4 in) |
| 1990 | 61.7 mm (2.4 in) |
| 1991 | 51.6 mm (2.0 in) |
| 1992 | 159.5 mm (6.3 in) |
| 1993 | 108.3 mm (4.3 in) |
| 1994 | 33.8 mm (1.3 in) |
| 1995 | 59.9 mm (2.4 in) |
| 1996 | 42.7 mm (1.7 in) |
| 1997 | 49.1 mm (1.9 in) |
| 1998 | 83.9 mm (3.3 in) |
| 1999 | 100.4 mm (4.0 in) |
| 2000 | 48.3 mm (1.9 in) |
| 2001 | 53.3 mm (2.1 in) |
| 2002 | 59.7 mm (2.4 in) |
| 2003 | 33.5 mm (1.3 in) |
| 2004 | 123.7 mm (4.9 in) |
| 2005 | 44.7 mm (1.8 in) |
| 2006 | 83.4 mm (3.3 in) |
| 2007 | 93.7 mm (3.7 in) |
| 2008 | 47.0 mm (1.9 in) |
| 2009 | 61.7 mm (2.4 in) |
| 2010 | 46.2 mm (1.8 in) |
| 2011 | 20.6 mm (0.8 in) |
| 2012 | 42.5 mm (1.7 in) |
| 2013 | 153.4 mm (6.0 in) |
| 2014 | 145.8 mm (5.7 in) |
| 2015 | 68.9 mm (2.7 in) |
| 2016 | 36.0 mm (1.4 in) |
| 2017 | 32.3 mm (1.3 in) |
| 2018 | 19.1 mm (0.8 in) |
| 2019 | 8.7 mm (0.34 in) |
| 2020 | 17.7 mm (0.7 in) |
| 2021 | 68.1 mm (2.7 in) |
| 2022 | 44.2 mm (1.7 in) |
| 2023 | 48.3 mm (1.9 in) |
| 2024 | 25.4 mm (1.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1950 | 31 days |
| 1951 | 55 days |
| 1952 | 41 days |
| 1953 | 44 days |
| 1954 | 81 days |
| 1955 | 105 days |
| 1956 | 112 days |
| 1957 | 49 days |
| 1958 | 55 days |
| 1959 | 101 days |
| 1960 | 95 days |
| 1961 | 51 days |
| 1962 | 43 days |
| 1963 | 48 days |
| 1964 | 96 days |
| 1965 | 55 days |
| 1966 | 102 days |
| 1967 | 95 days |
| 1968 | 52 days |
| 1969 | 44 days |
| 1970 | 62 days |
| 1971 | 52 days |
| 1972 | 101 days |
| 1973 | 48 days |
| 1974 | 53 days |
| 1975 | 60 days |
| 1976 | 44 days |
| 1977 | 54 days |
| 1978 | 65 days |
| 1979 | 43 days |
| 1980 | 53 days |
| 1981 | 40 days |
| 1982 | 30 days |
| 1983 | 52 days |
| 1984 | 46 days |
| 1985 | 41 days |
| 1986 | 38 days |
| 1987 | 37 days |
| 1988 | 55 days |
| 1989 | 66 days |
| 1990 | 67 days |
| 1991 | 53 days |
| 1992 | 39 days |
| 1993 | 34 days |
| 1994 | 66 days |
| 1995 | 58 days |
| 1996 | 98 days |
| 1997 | 38 days |
| 1998 | 85 days |
| 1999 | 37 days |
| 2000 | 81 days |
| 2001 | 45 days |
| 2002 | 66 days |
| 2003 | 66 days |
| 2004 | 42 days |
| 2005 | 41 days |
| 2006 | 61 days |
| 2007 | 53 days |
| 2008 | 63 days |
| 2009 | 79 days |
| 2010 | 61 days |
| 2011 | 143 days |
| 2012 | 42 days |
| 2013 | 76 days |
| 2014 | 61 days |
| 2015 | 30 days |
| 2016 | 38 days |
| 2017 | 20 days |
| 2018 | 4 days |
| 2019 | 23 days |
| 2020 | 17 days |
| 2021 | 59 days |
| 2022 | 49 days |
| 2023 | 13 days |
| 2024 | 14 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
46 years with a frostAcross 46 years with a frost, the median last spring frost at Bitter Lakes Wl Refuge falls on 22 April and the median first autumn frost on 16 October, which leaves a median of 175 days between them.
Fitted over all years, the growing season changes by -0.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1973 to 2021) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 April | n/a | 22 April | n/a | +0.3 days per decade |
| First autumn frost | 16 October | n/a | 15 October | n/a | -0.2 days per decade |
| Growing days | 175 days | n/a | 174 days | n/a | -0.5 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
65 years, 1951 to 2021A day with at least 44.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 138.8 mm (5.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.0 mm (1.7 in) | |
| 5 years | 65.5 mm (2.6 in) | |
| 10 years | 81.2 mm (3.2 in) | |
| 25 years | 102.8 mm (4.0 in) | |
| 50 years | 120.2 mm (4.7 in) | |
| 100 years | 138.8 mm (5.5 in) | Longer than the 65 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, 65 years of values from 1951 to 2021.
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: 127.0 mm (5.0 in) in 2013; 120.4 mm (4.7 in) in 2014; 104.4 mm (4.1 in) in 1955.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Bitter Lakes Wl Refuge, at 1973 and 2004. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.3 C (0.6 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2004 ran 0.6 C (1.0 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1973 | -0.3 | -0.6 | likely | 5 |
| 2004 | -0.6 | -1.0 | likely | 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).