Records for Boulder, CO 80306
Record highs, lows and rain · Niwot · 47 years of record
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Which records has Boulder, CO broken?
| Aug 21, 2026 | Record high | 81° | 79° in 2025 | +1.8° |
| Aug 7, 2026 | Record high | 81° | 81° in 2003 | +0.2° |
| Aug 2, 2026 | Record high | 82° | 81° in 2008 | +1.4° |
| Jul 26, 2026 | Record high | 80° | 79° in 2003 | +1.6° |
| May 14, 2026 | Record high | 65° | 65° in 1996 | +0.2° |
| May 13, 2026 | Record high | 71° | 69° in 1996 | +2° |
| May 12, 2026 | Record high | 68° | 66° in 2001 | +1.8° |
| Apr 21, 2026 | Record high | 64° | 62° in 1994 | +2.3° |
| Mar 28, 2026 | Record high | 58° | 55° in 2022 | +2.5° |
| Mar 26, 2026 | Record high | 63° | 60° in 2004 | +3.2° |
| Mar 25, 2026 | Record high | 64° | 59° in 2012 | +5° |
| Mar 21, 2026 | Record high | 64° | 60° in 2004 | +4° |
| Mar 20, 2026 | Record high | 61° | 60° in 1997 | +0.9° |
| Dec 25, 2025 | Record high | 45° | 41° in 1994 | +3.8° |
| Dec 23, 2025 | Record high | 50° | 48° in 2019 | +1.6° |
| Dec 15, 2025 | Record high | 53° | 44° in 1998 | +9.2° |
| Dec 14, 2025 | Record high | 52° | 50° in 1997 | +2.3° |
| Aug 21, 2025 | Record high | 79° | 78° in 2023 | +1.3° |
| Aug 14, 2025 | Record high | 78° | 77° in 2020 | +0.9° |
| Aug 6, 2025 | Record high | 79° | 78° in 1995 | +1.4° |
| Jun 21, 2025 | Record high | 81° | 80° in 2016 | +1.1° |
| Jun 20, 2025 | Record high | 78° | 77° in 2007 | +0.5° |
| Apr 12, 2025 | Record high | 62° | 61° in 2023 | +1.3° |
| Apr 6, 2025 | Record low | 0° | 5° in 2023 | +4.5° |
| Mar 2, 2025 | Record high | 51° | 51° in 2009 | +0.7° |
| Feb 3, 2025 | Record high | 49° | 48° in 2007 | +0.4° |
| Jan 20, 2025 | Record low | -14° | -13° in 1991 | +1.3° |
| Jan 19, 2025 | Record low | -10° | -3° in 2002 | +6.5° |
| Jan 8, 2025 | Record low | -11° | -5° in 2012 | +6.3° |
| Jan 7, 2025 | Record low | -11° | -10° in 1998 | +1.6° |
| Oct 4, 2024 | Record high | 68° | 67° in 1997 | +0.7° |
| Sep 29, 2024 | Record high | 70° | 69° in 2001 | +1.1° |
| Aug 4, 2024 | Record high | 81° | 77° in 2005 | +4° |
| Jul 10, 2024 | Record low | 34° | 35° in 2003 | +0.9° |
| Jul 8, 2024 | Record low | 30° | 33° in 2010 | +3.2° |
| Jan 30, 2024 | Record high | 48° | 46° in 1997 | +2.2° |
| Jan 15, 2024 | Record low | -20° | -17° in 2007 | +3.4° |
| Dec 6, 2023 | Record high | 48° | 46° in 2003 | +2° |
| Nov 22, 2023 | Record high | 48° | 47° in 2006 | +0.7° |
| Aug 21, 2023 | Record high | 78° | 76° in 2020 | +1.8° |
| Apr 23, 2023 | Record low | 4° | 4° in 2013 | +0.5° |
| Apr 22, 2023 | Record low | 6° | 6° in 2013 | +0.2° |
| Apr 12, 2023 | Record high | 61° | 60° in 1992 | +0.4° |
| Apr 7, 2023 | Record low | 2° | 4° in 2003 | +2° |
| Apr 6, 2023 | Record low | 5° | 6° in 1997 | +1.6° |
| Apr 4, 2023 | Record low | 2° | 3° in 1999 | +0.9° |
| Mar 18, 2023 | Record low | -6° | -4° in 2002 | +1.3° |
| Mar 8, 2023 | Record low | -4° | -3° in 1994 | +0.7° |
| Feb 24, 2023 | Record low | -6° | -5° in 1991 | +1.3° |
| Dec 22, 2022 | Record low | -16° | -15° in 1990 | +0.9° |
| Nov 18, 2022 | Record low | -3° | -2° in 1994 | +1.3° |
| Sep 20, 2022 | Record high | 71° | 69° in 2006 | +1.3° |
| Sep 8, 2022 | Record high | 77° | 75° in 1994 | +1.6° |
| Jun 12, 2022 | Record high | 75° | 74° in 2006 | +1.1° |
| Jun 11, 2022 | Record high | 77° | 75° in 2001 | +2° |
| May 31, 2022 | Record low | 26° | 27° in 1998 | +1.6° |
| May 22, 2022 | Record low | 13° | 23° in 2019 | +9.9° |
| May 11, 2022 | Record high | 65° | 63° in 2004 | +1.6° |
| Apr 22, 2022 | Record high | 63° | 62° in 1994 | +1.1° |
| Mar 28, 2022 | Record high | 55° | 54° in 2005 | +1.1° |
| Mar 27, 2022 | Record high | 57° | 54° in 2019 | +2.5° |
| Mar 11, 2022 | Record low | -6° | -3° in 2014 | +2.9° |
| Mar 10, 2022 | Record low | -6° | 4° in 2009 | +10.1° |
| Mar 9, 2022 | Record low | -6° | -1° in 2002 | +5° |
| Feb 23, 2022 | Record low | -14° | -8° in 2003 | +6.3° |
| Feb 22, 2022 | Record low | -16° | -7° in 2015 | +9.4° |
| Feb 17, 2022 | Record low | -9° | -8° in 2019 | +1.4° |
| Jan 25, 2022 | Record low | -10° | -6° in 1991 | +3.6° |
| Dec 2, 2021 | Record high | 57° | 48° in 2012 | +8.3° |
| Sep 10, 2021 | Record high | 77° | 73° in 1998 | +3.4° |
| Sep 9, 2021 | Record high | 76° | 71° in 1994 | +4.5° |
| Jul 9, 2021 | Record high | 81° | 81° in 1995 | +0.4° |
| Jun 17, 2021 | Record high | 80° | 75° in 2002 | +5° |
| Jun 16, 2021 | Record high | 80° | 76° in 1994 | +3.8° |
| Jun 14, 2021 | Record high | 81° | 78° in 2006 | +3.1° |
| May 12, 2021 | Record low | 14° | 15° in 2014 | +1.1° |
| Apr 20, 2021 | Record low | -6° | 7° in 1996 | +13.1° |
| Apr 19, 2021 | Record low | 3° | 10° in 2018 | +6.3° |
| Apr 4, 2021 | Record high | 58° | 57° in 1992 | +0.9° |
| Feb 14, 2021 | Record low | -19° | -12° in 1990 | +6.8° |
| Jan 26, 2021 | Record low | -9° | -4° in 1996 | +5.2° |
| Nov 5, 2020 | Record high | 59° | 56° in 1999 | +3.6° |
| Oct 27, 2020 | Record low | -6° | 1° in 2019 | +6.7° |
| Oct 26, 2020 | Record low | -9° | 2° in 2009 | +11.7° |
| Oct 25, 2020 | Record low | -9° | 3° in 2009 | +12.1° |
| Oct 23, 2020 | Record low | 9° | 11° in 1995 | +2.3° |
| Oct 6, 2020 | Record high | 68° | 67° in 2005 | +1.1° |
| Sep 9, 2020 | Record low | 17° | 26° in 2001 | +8.6° |
| Sep 8, 2020 | Record low | 17° | 20° in 2006 | +3.4° |
| May 25, 2020 | Record low | 23° | 24° in 1995 | +1.1° |
| May 18, 2020 | Record high | 68° | 68° in 2009 | +0.5° |
| May 1, 2020 | Record high | 65° | 62° in 1992 | +3.1° |
| Feb 19, 2020 | Record low | -12° | -10° in 2019 | +2.5° |
| Oct 29, 2019 | Record low | -11° | -3° in 2002 | +8.3° |
| Jan 6, 2017 | All-time low All-time | -24° | -23° in 2004 | +0.4° |
| Jun 15, 2006 | All-time high All-time | 96° | 92° in 2005 | +4.1° |
| Sep 1, 2005 | All-time high All-time | 92° | 92° in 2005 | +0.4° |
| Aug 3, 2005 | All-time high All-time | 92° | 87° in 2005 | +5.2° |
| Jul 21, 2005 | All-time high All-time | 87° | 86° in 2003 | +0.4° |
| Feb 12, 2004 | All-time low All-time | -23° | -22° in 1997 | +0.9° |
| Jul 24, 2003 | All-time high All-time | 86° | 85° in 1998 | +1.3° |
| Jul 19, 1998 | All-time high All-time | 85° | 84° in 1990 | +0.9° |
| Jan 11, 1997 | All-time low All-time | -22° | -21° in 1990 | +1.1° |
| Dec 20, 1990 | All-time low All-time | -21° | -12° in 1990 | +9.5° |
| Jul 2, 1990 | All-time high All-time | 84° | 84° in 1990 | +0.4° |
| Jul 1, 1990 | All-time high All-time | 84° | 83° in 1990 | +0.4° |
| Jun 30, 1990 | All-time high All-time | 83° | 82° in 1990 | +1.4° |
| Jun 29, 1990 | All-time high All-time | 82° | 81° in 1990 | +0.7° |
| Jun 27, 1990 | All-time high All-time | 81° | 79° in 1990 | +2° |
| Jun 24, 1990 | All-time high All-time | 79° | 79° in 1990 | +0.5° |
| Jun 23, 1990 | All-time high All-time | 79° | 78° in 1990 | +1.1° |
| Jun 18, 1990 | All-time high All-time | 78° | 71° in 1990 | +6.5° |
| Jun 9, 1990 | All-time high All-time | 71° | 70° in 1990 | +1.3° |
| Jun 5, 1990 | All-time high All-time | 70° | 69° in 1990 | +1.3° |
| Jun 4, 1990 | All-time high All-time | 69° | 67° in 1990 | +1.6° |
| May 23, 1990 | All-time high All-time | 67° | 66° in 1989 | +1.3° |
| Feb 14, 1990 | All-time low All-time | -12° | -10° in 1989 | +2° |
| Dec 11, 1989 | All-time low All-time | -10° | -7° in 1989 | +2.7° |
| Dec 10, 1989 | All-time low All-time | -7° | -3° in 1989 | +4.7° |
| Dec 2, 1989 | All-time low All-time | -3° | -1° in 1989 | +1.6° |
| Dec 1, 1989 | All-time low All-time | -1° | 1° in 1989 | +1.4° |
| Nov 30, 1989 | All-time low All-time | 1° | 1° in 1989 | +0.7° |
| Oct 18, 1989 | All-time low All-time | 1° | 18° in 1989 | +16.4° |
| Oct 16, 1989 | All-time low All-time | 18° | 20° in 1989 | +2° |
| Oct 15, 1989 | All-time low All-time | 20° | 20° in 1989 | +0.4° |
| Oct 13, 1989 | All-time high All-time | 66° | 63° in 1989 | +2.7° |
| Oct 12, 1989 | All-time high All-time | 63° | 62° in 1989 | +1.4° |
| Oct 10, 1989 | All-time high All-time | 62° | 57° in 1989 | +4.7° |
| Oct 8, 1989 | All-time high All-time | 57° | 54° in 1989 | +2.5° |
| Oct 6, 1989 | All-time low All-time | 20° | 33° in 1989 | +12.8° |
| Oct 6, 1989 | All-time high All-time | 54° | 50° in 1989 | +4.3° |
| Oct 5, 1989 | All-time high All-time | 50° | 44° in 1989 | +6.3° |
| Apr 2, 1986 | Most rain in 24h All-time | 3.00 in | 2.40 in in 1982 | +0.60 in |
| May 12, 1982 | Most rain in 24h All-time | 2.40 in | 1.80 in in 1981 | +0.60 in |
| Jun 3, 1981 | Most rain in 24h All-time | 1.80 in | 1.20 in in 1981 | +0.60 in |
| Mar 25, 1981 | Most rain in 24h All-time | 1.20 in | 1.00 in in 1981 | +0.20 in |
| Mar 3, 1981 | Most rain in 24h All-time | 1.00 in | 0.60 in in 1981 | +0.40 in |
| Feb 9, 1981 | Most rain in 24h All-time | 0.60 in | 0.20 in in 1980 | +0.40 in |
| Oct 16, 1980 | Most rain in 24h All-time | 0.20 in | 0.10 in in 1980 | +0.10 in |
Station Niwot (USS0005J42S), 15 km from Boulder, CO. Records since 1980. Stations need 30 years of record; ties are not records.
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