Deer Mountain Washington Weather Records (USR0000WDEE)
Record envelope, standing records and threshold days for Deer Mountain Washington (USR0000WDEE), Washington, United States, with 39 years of record.
Key Facts for Deer Mountain Washington
- Deer Mountain Washington (USR0000WDEE) is a weather station in Washington, United States at 48.80 latitude and -117.61 longitude, 1,006 m (3,300 ft) above sea level.
- The station reports from 1985 to 2023, 39 years of record.
- 1,464 records set at Deer Mountain Washington still stand.
- Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
- Deer Mountain Washington set a daily record high maximum temperature of 33.3 C (91.9 F) on 22 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Washington, United States, 48.80 latitude, -117.61 longitude.
- Elevation: 1,006 m (3,300 ft).
- Period of record: 1985 to 2023, 39 years.
- Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
14 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 13.9 C (57.0 F) | -27.2 C (-17.0 F) | 7.8 C (46.0 F) | -11.1 C (12.0 F) |
| Feb | 15.0 C (59.0 F) | -26.4 C (-15.5 F) | 11.1 C (52.0 F) | -13.3 C (8.1 F) |
| Mar | 23.9 C (75.0 F) | -17.4 C (0.7 F) | 15.0 C (59.0 F) | -7.2 C (19.0 F) |
| Apr | 28.3 C (82.9 F) | -7.2 C (19.0 F) | 27.2 C (81.0 F) | -2.8 C (27.0 F) |
| May | 33.6 C (92.5 F) | -3.8 C (25.2 F) | 32.2 C (90.0 F) | 0.6 C (33.1 F) |
| Jun | 41.7 C (107.1 F) | -2.9 C (26.8 F) | 30.0 C (86.0 F) | 2.8 C (37.0 F) |
| Jul | 38.9 C (102.0 F) | 2.2 C (36.0 F) | 35.6 C (96.1 F) | 8.9 C (48.0 F) |
| Aug | 38.9 C (102.0 F) | 2.6 C (36.7 F) | 35.6 C (96.1 F) | 8.3 C (46.9 F) |
| Sep | 37.8 C (100.0 F) | -2.2 C (28.0 F) | 27.8 C (82.0 F) | 2.2 C (36.0 F) |
| Oct | 30.0 C (86.0 F) | -11.1 C (12.0 F) | 24.4 C (75.9 F) | 2.2 C (36.0 F) |
| Nov | 16.7 C (62.1 F) | -24.5 C (-12.1 F) | n/a | n/a |
| Dec | 11.7 C (53.1 F) | -23.9 C (-11.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1985 | 91 |
| 1986 | 64 |
| 1987 | 49 |
| 1988 | 31 |
| 1989 | 30 |
| 1990 | 23 |
| 1991 | 20 |
| 1992 | 53 |
| 1993 | 29 |
| 1994 | 16 |
| 1995 | 37 |
| 1996 | 8 |
| 1997 | 11 |
| 1998 | 37 |
| 1999 | 48 |
| 2000 | 14 |
| 2001 | 19 |
| 2002 | 19 |
| 2003 | 35 |
| 2004 | 28 |
| 2005 | 40 |
| 2006 | 20 |
| 2007 | 24 |
| 2008 | 49 |
| 2009 | 26 |
| 2010 | 19 |
| 2011 | 27 |
| 2012 | 43 |
| 2014 | 37 |
| 2015 | 47 |
| 2016 | 43 |
| 2017 | 33 |
| 2018 | 25 |
| 2019 | 42 |
| 2020 | 23 |
| 2021 | 52 |
| 2022 | 60 |
| 2023 | 53 |
| 2024 | 70 |
| 2025 | 51 |
| 2026 | 18 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 2021-06-28 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 2021-06-29 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 2021-06-29 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 2021-06-30 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 2024-01-13 | Record low minimum temperature | Record low minimum temperature -27.2 C (-17.0 F) |
Period of Record Coverage
1985 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1985 | 311 | 85% | No |
| 1986 | 352 | 96% | Yes |
| 1987 | 329 | 90% | Yes |
| 1988 | 203 | 55% | No |
| 1989 | 207 | 57% | No |
| 1990 | 178 | 49% | No |
| 1991 | 133 | 36% | No |
| 1992 | 252 | 69% | No |
| 1993 | 294 | 81% | No |
| 1994 | 235 | 64% | No |
| 1995 | 302 | 83% | No |
| 1996 | 92 | 25% | No |
| 1997 | 161 | 44% | No |
| 1998 | 364 | 100% | Yes |
| 1999 | 327 | 90% | No |
| 2000 | 155 | 42% | No |
| 2001 | 198 | 54% | No |
| 2002 | 190 | 52% | No |
| 2003 | 353 | 97% | Yes |
| 2004 | 329 | 90% | No |
| 2005 | 327 | 90% | No |
| 2006 | 204 | 56% | No |
| 2007 | 344 | 94% | Yes |
| 2008 | 351 | 96% | Yes |
| 2009 | 188 | 52% | No |
| 2010 | 196 | 54% | No |
| 2011 | 236 | 65% | No |
| 2012 | 340 | 93% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 346 | 95% | Yes |
| 2017 | 361 | 99% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 22 August 2026 | Deer Mountain Washington, US | daily high max (Provisional) | 33.3 C (91.9 F) | 0.5 C (0.9 F) | 8 years | 6 of 100 (Routine) |
| 21 August 2026 | Deer Mountain Washington, US | daily high max (Provisional) | 35.6 C (96.1 F) | 1.2 C (2.2 F) | 20 years | 12 of 100 (Routine) |
| 21 August 2026 | Deer Mountain Washington, US | daily high min (Provisional) | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 16 years | 10 of 100 (Routine) |
| 20 August 2026 | Deer Mountain Washington, US | daily high max (Tie, Provisional) | 33.9 C (93.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 28 May 2026 | Deer Mountain Washington, US | daily high max | 32.2 C (90.0 F) | 1.1 C (2.0 F) | 20 years | 11 of 100 (Routine) |
| 3 May 2026 | Deer Mountain Washington, US | daily high max (Tie) | 26.7 C (80.1 F) | tie | 3 years | 1 of 100 (Routine) |
| 21 April 2026 | Deer Mountain Washington, US | daily high max | 27.2 C (81.0 F) | 1.6 C (2.9 F) | 9 years | 8 of 100 (Routine) |
| 17 April 2026 | Deer Mountain Washington, US | daily low min | -2.2 C (28.0 F) | 0.5 C (0.9 F) | 4 years | 6 of 100 (Routine) |
| 11 April 2026 | Deer Mountain Washington, US | daily high min | 6.7 C (44.1 F) | 1.7 C (3.1 F) | 13 years | 13 of 100 (Routine) |
| 10 April 2026 | Deer Mountain Washington, US | daily high max | 21.1 C (70.0 F) | 1.1 C (2.0 F) | 13 years | 10 of 100 (Routine) |
| 6 April 2026 | Deer Mountain Washington, US | daily high max (Tie) | 20.6 C (69.1 F) | tie | 21 years | 2 of 100 (Routine) |
| 5 April 2026 | Deer Mountain Washington, US | daily high max | 20.0 C (68.0 F) | 2.8 C (5.0 F) | 21 years | 15 of 100 (Routine) |
| 20 March 2026 | Deer Mountain Washington, US | monthly high min (Tie) | 7.8 C (46.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 19 March 2026 | Deer Mountain Washington, US | monthly high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 18 years | 22 of 100 (Routine) |
| 18 March 2026 | Deer Mountain Washington, US | daily high min | 5.6 C (42.1 F) | 0.6 C (1.1 F) | 1 year | 5 of 100 (Routine) |
| 16 March 2026 | Deer Mountain Washington, US | daily low max | 1.7 C (35.1 F) | 1.2 C (2.2 F) | 36 years | 17 of 100 (Routine) |
| 4 February 2026 | Deer Mountain Washington, US | daily high max | 10.6 C (51.1 F) | 1.8 C (3.2 F) | 32 years | 16 of 100 (Routine) |
| 4 February 2026 | Deer Mountain Washington, US | daily high min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 28 years | 14 of 100 (Routine) |
| 3 February 2026 | Deer Mountain Washington, US | daily high min | 0.6 C (33.1 F) | 0.4 C (0.7 F) | 31 years | 13 of 100 (Routine) |
| 21 January 2026 | Deer Mountain Washington, US | daily low max | -3.9 C (25.0 F) | 1.1 C (2.0 F) | 23 years | 12 of 100 (Routine) |
Climate Trend
16 complete years, 1986 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1986 | 6.9 C | -1.30 C |
| 1998 | 8.9 C | +0.73 C |
| 2003 | 8.4 C | +0.22 C |
| 2008 | 7.0 C | -1.16 C |
| 2014 | 8.0 C | -0.15 C |
| 2015 | 9.5 C | +1.33 C |
| 2016 | 8.2 C | +0.06 C |
| 2017 | 7.8 C | -0.35 C |
| 2018 | 8.0 C | -0.11 C |
| 2019 | 7.3 C | -0.85 C |
| 2020 | 7.9 C | -0.24 C |
| 2021 | 8.4 C | +0.24 C |
| 2022 | 7.5 C | -0.65 C |
| 2023 | 8.7 C | +0.53 C |
| 2024 | 8.7 C | +0.55 C |
| 2025 | 9.3 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
1985 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 2021 | 36.1 C (97.0 F) | 41 |
| Coldest night (TNn) | -27.2 C (-17.0 F) | 2024 | -15.1 C (4.8 F) | 41 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1985 | 34.7 C (94.5 F) |
| 1986 | 35.5 C (95.9 F) |
| 1987 | 32.3 C (90.1 F) |
| 1988 | 36.7 C (98.1 F) |
| 1989 | 35.5 C (95.9 F) |
| 1990 | 31.6 C (88.9 F) |
| 1991 | 33.6 C (92.5 F) |
| 1992 | 34.7 C (94.5 F) |
| 1993 | 32.7 C (90.9 F) |
| 1994 | 38.2 C (100.8 F) |
| 1995 | 33.2 C (91.8 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 37.2 C (99.0 F) |
| 1999 | 34.4 C (93.9 F) |
| 2000 | 34.4 C (93.9 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 37.2 C (99.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 33.9 C (93.0 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 36.1 C (97.0 F) |
| 2014 | 37.2 C (99.0 F) |
| 2015 | 39.4 C (102.9 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 36.1 C (97.0 F) |
| 2020 | 37.8 C (100.0 F) |
| 2021 | 41.7 C (107.1 F) |
| 2022 | 37.2 C (99.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 38.9 C (102.0 F) |
| 2025 | 37.8 C (100.0 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1985 | -24.5 C (-12.1 F) |
| 1986 | -15.5 C (4.1 F) |
| 1987 | -15.1 C (4.8 F) |
| 1988 | -15.1 C (4.8 F) |
| 1989 | -26.4 C (-15.5 F) |
| 1990 | -6.4 C (20.5 F) |
| 1991 | -11.9 C (10.6 F) |
| 1992 | -13.9 C (7.0 F) |
| 1993 | -19.4 C (-2.9 F) |
| 1994 | -12.7 C (9.1 F) |
| 1995 | -19.0 C (-2.2 F) |
| 1996 | -12.2 C (10.0 F) |
| 1997 | -11.1 C (12.0 F) |
| 1998 | -22.2 C (-8.0 F) |
| 1999 | -11.1 C (12.0 F) |
| 2000 | -3.9 C (25.0 F) |
| 2001 | -2.8 C (27.0 F) |
| 2002 | -10.0 C (14.0 F) |
| 2003 | -12.8 C (9.0 F) |
| 2004 | -8.9 C (16.0 F) |
| 2005 | -20.6 C (-5.1 F) |
| 2006 | -10.0 C (14.0 F) |
| 2007 | -17.8 C (0.0 F) |
| 2008 | -20.6 C (-5.1 F) |
| 2009 | -15.0 C (5.0 F) |
| 2010 | -5.6 C (21.9 F) |
| 2011 | -11.7 C (10.9 F) |
| 2012 | -12.2 C (10.0 F) |
| 2014 | -18.3 C (-0.9 F) |
| 2015 | -14.4 C (6.1 F) |
| 2016 | -17.8 C (0.0 F) |
| 2017 | -17.2 C (1.0 F) |
| 2018 | -17.2 C (1.0 F) |
| 2019 | -16.1 C (3.0 F) |
| 2020 | -15.0 C (5.0 F) |
| 2021 | -19.4 C (-2.9 F) |
| 2022 | -23.9 C (-11.0 F) |
| 2023 | -18.9 C (-2.0 F) |
| 2024 | -27.2 C (-17.0 F) |
| 2025 | -17.2 C (1.0 F) |
| 2026 | -13.3 C (8.1 F) |
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.
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 (2026-10-13).