Denver Water Dept Weather Records (USC00052223)

Record envelope, standing records and threshold days for Denver Water Dept (USC00052223), Colorado, United States, with 30 years of record.

Key Facts for Denver Water Dept

Denver Water Dept (USC00052223) is a weather station in Colorado, United States at 39.73 latitude and -105.01 longitude, 1,593 m (5,225 ft) above sea level.
The station reports from 1997 to 2026, 30 years of record.
1,464 records set at Denver Water Dept still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Colorado, United States, 39.73 latitude, -105.01 longitude.
Elevation: 1,593 m (5,225 ft).
Period of record: 1997 to 2026, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

32 days at or beyond a record

The band shows the record high and record low for each calendar day at Denver Water Dept. The lines show the 2026 daily maximum and minimum. 32 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Denver Water Dept, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-26.1 C (-15.0 F)	18.3 C (64.9 F)	-20.6 C (-5.1 F)
Feb	25.6 C (78.1 F)	-25.6 C (-14.1 F)	22.8 C (73.0 F)	-16.7 C (1.9 F)
Mar	29.4 C (84.9 F)	-18.9 C (-2.0 F)	25.6 C (78.1 F)	-6.7 C (19.9 F)
Apr	32.8 C (91.0 F)	-13.3 C (8.1 F)	30.6 C (87.1 F)	-3.3 C (26.1 F)
May	37.2 C (99.0 F)	-6.7 C (19.9 F)	30.6 C (87.1 F)	4.4 C (39.9 F)
Jun	41.7 C (107.1 F)	2.2 C (36.0 F)	38.9 C (102.0 F)	7.2 C (45.0 F)
Jul	42.2 C (108.0 F)	9.4 C (48.9 F)	38.3 C (100.9 F)	14.4 C (57.9 F)
Aug	40.0 C (104.0 F)	4.4 C (39.9 F)	37.8 C (100.0 F)	11.1 C (52.0 F)
Sep	38.9 C (102.0 F)	-5.6 C (21.9 F)	33.9 C (93.0 F)	3.9 C (39.0 F)
Oct	32.2 C (90.0 F)	-15.6 C (3.9 F)	32.2 C (90.0 F)	-3.9 C (25.0 F)
Nov	29.4 C (84.9 F)	-22.2 C (-8.0 F)	29.4 C (84.9 F)	-9.4 C (15.1 F)
Dec	25.6 C (78.1 F)	-25.0 C (-13.0 F)	25.6 C (78.1 F)	-10.6 C (12.9 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Denver Water Dept still stand. 2006 holds the most, with 78.

Standing records at Denver Water Dept by the year they were set
Year set	Standing records
1997	6
1998	53
1999	52
2000	62
2001	42
2002	50
2003	60
2004	59
2005	45
2006	78
2007	51
2008	37
2009	65
2010	35
2011	54
2012	60
2013	66
2014	52
2015	55
2016	41
2017	68
2018	37
2019	47
2020	68
2021	48
2022	58
2023	36
2024	32
2025	47

Wettest Day of Each Month

Aug: 89.2 mm (3.5 in)

The wettest day on record for each calendar month at Denver Water Dept. The most was 89.2 mm (3.5 in) on 19 August 2004.

Record daily precipitation for each month at Denver Water Dept
Month	Record daily precipitation (mm)	Date
Jan	13.0 mm (0.5 in)	12 January 2019
Feb	27.4 mm (1.1 in)	4 February 2024
Mar	39.9 mm (1.6 in)	14 March 2024
Apr	51.1 mm (2.0 in)	25 April 2007
May	74.4 mm (2.9 in)	12 May 2023
Jun	45.5 mm (1.8 in)	22 June 2023
Jul	48.3 mm (1.9 in)	28 July 2007
Aug	89.2 mm (3.5 in)	19 August 2004
Sep	29.2 mm (1.1 in)	24 September 2025
Oct	35.1 mm (1.4 in)	10 October 2005
Nov	24.1 mm (0.9 in)	5 November 2015
Dec	32.8 mm (1.3 in)	29 December 2022

Period of Record Coverage

1997 to 2025

29 years of record at Denver Water Dept, 1997 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 1997, 2019.

Days with data per year at Denver Water Dept
Year	Days with data	Share of year	Complete
1997	61	17%	No
1998	364	100%	Yes
1999	363	99%	Yes
2000	366	100%	Yes
2001	364	100%	Yes
2002	363	99%	Yes
2003	363	99%	Yes
2004	360	98%	Yes
2005	329	90%	Yes
2006	360	99%	Yes
2007	341	93%	Yes
2008	336	92%	Yes
2009	354	97%	Yes
2010	363	99%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	363	99%	Yes
2014	338	93%	Yes
2015	354	97%	Yes
2016	354	97%	Yes
2017	354	97%	Yes
2018	346	95%	Yes
2019	327	90%	No
2020	366	100%	Yes
2021	362	99%	Yes
2022	364	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

24 complete years, 1998 to 2025

One stripe for each of 24 complete years at Denver Water Dept, 1998 to 2025. Blue stripes are years cooler than the station's own mean of 11.9 C (53.4 F); red stripes are warmer. The coolest year was 2009, at 10.8 C (51.4 F), and the warmest was 2024, at 13.0 C (55.5 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Denver Water Dept as warming stripes, 1998 to 2025
Year	Annual mean temperature	Difference from the station mean
1998	12.1 C	+0.14 C
1999	12.4 C	+0.46 C
2000	12.3 C	+0.43 C
2001	12.4 C	+0.53 C
2002	11.8 C	-0.08 C
2003	12.0 C	+0.10 C
2004	11.6 C	-0.30 C
2006	11.0 C	-0.95 C
2009	10.8 C	-1.12 C
2010	11.6 C	-0.29 C
2011	11.5 C	-0.46 C
2012	13.0 C	+1.07 C
2013	10.8 C	-1.08 C
2015	11.6 C	-0.29 C
2016	11.8 C	-0.08 C
2017	11.6 C	-0.34 C
2018	12.2 C	+0.31 C
2019	11.4 C	-0.54 C
2020	12.3 C	+0.42 C
2021	12.5 C	+0.57 C
2022	11.8 C	-0.14 C
2023	11.7 C	-0.21 C
2024	13.0 C	+1.13 C
2025	12.7 C	+0.79 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

1997 to 2026

Yearly extremes at Denver Water Dept: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.2 C (108.0 F)	2005	39.4 C (102.9 F)	30
Coldest night (TNn)	-26.1 C (-15.0 F)	2017	-20.6 C (-5.1 F)	30
Wettest day (Rx1day)	89.2 mm (3.5 in)	2004	34.7 mm (1.4 in)	30
Wettest five days (Rx5day)	113.9 mm (4.5 in)	2023	55.9 mm (2.2 in)	30
Longest dry spell (CDD)	49 days	2018	34 days	30

Hottest day (TXx)

The hottest day of the year at Denver Water Dept, 1997 to 2026. The record is 42.2 C (108.0 F) in 2005, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Denver Water Dept by year
Year	Hottest day (TXx)
1997	22.2 C (72.0 F)
1998	41.1 C (106.0 F)
1999	37.8 C (100.0 F)
2000	38.3 C (100.9 F)
2001	39.4 C (102.9 F)
2002	40.6 C (105.1 F)
2003	41.1 C (106.0 F)
2004	40.0 C (104.0 F)
2005	42.2 C (108.0 F)
2006	40.0 C (104.0 F)
2007	37.8 C (100.0 F)
2008	39.4 C (102.9 F)
2009	37.8 C (100.0 F)
2010	40.6 C (105.1 F)
2011	39.4 C (102.9 F)
2012	41.7 C (107.1 F)
2013	40.6 C (105.1 F)
2014	38.9 C (102.0 F)
2015	38.9 C (102.0 F)
2016	40.0 C (104.0 F)
2017	38.9 C (102.0 F)
2018	41.1 C (106.0 F)
2019	39.4 C (102.9 F)
2020	38.9 C (102.0 F)
2021	40.0 C (104.0 F)
2022	40.0 C (104.0 F)
2023	38.3 C (100.9 F)
2024	37.8 C (100.0 F)
2025	38.9 C (102.0 F)
2026	40.6 C (105.1 F)

Coldest night (TNn)

The coldest night of the year at Denver Water Dept, 1997 to 2026. The record is -26.1 C (-15.0 F) in 2017, marked on the chart; the median year is -20.6 C (-5.1 F).

Coldest night (TNn) at Denver Water Dept by year
Year	Coldest night (TNn)
1997	-15.6 C (3.9 F)
1998	-22.8 C (-9.0 F)
1999	-17.8 C (0.0 F)
2000	-15.0 C (5.0 F)
2001	-18.9 C (-2.0 F)
2002	-18.9 C (-2.0 F)
2003	-18.9 C (-2.0 F)
2004	-20.0 C (-4.0 F)
2005	-21.7 C (-7.1 F)
2006	-22.8 C (-9.0 F)
2007	-20.6 C (-5.1 F)
2008	-23.9 C (-11.0 F)
2009	-23.3 C (-9.9 F)
2010	-20.0 C (-4.0 F)
2011	-25.6 C (-14.1 F)
2012	-18.9 C (-2.0 F)
2013	-22.8 C (-9.0 F)
2014	-25.0 C (-13.0 F)
2015	-17.8 C (0.0 F)
2016	-23.9 C (-11.0 F)
2017	-26.1 C (-15.0 F)
2018	-16.1 C (3.0 F)
2019	-18.9 C (-2.0 F)
2020	-16.7 C (1.9 F)
2021	-21.1 C (-6.0 F)
2022	-24.4 C (-11.9 F)
2023	-21.1 C (-6.0 F)
2024	-22.8 C (-9.0 F)
2025	-20.6 C (-5.1 F)
2026	-17.8 C (0.0 F)

Wettest day (Rx1day)

The wettest day of the year at Denver Water Dept, 1997 to 2026. The record is 89.2 mm (3.5 in) in 2004, marked on the chart; the median year is 34.7 mm (1.4 in).

Wettest day (Rx1day) at Denver Water Dept by year
Year	Wettest day (Rx1day)
1997	8.1 mm (0.32 in)
1998	27.2 mm (1.1 in)
1999	40.6 mm (1.6 in)
2000	38.6 mm (1.5 in)
2001	34.0 mm (1.3 in)
2002	26.9 mm (1.1 in)
2003	44.5 mm (1.8 in)
2004	89.2 mm (3.5 in)
2005	39.1 mm (1.5 in)
2006	25.7 mm (1.0 in)
2007	63.5 mm (2.5 in)
2008	32.8 mm (1.3 in)
2009	47.2 mm (1.9 in)
2010	20.3 mm (0.8 in)
2011	39.4 mm (1.6 in)
2012	36.3 mm (1.4 in)
2013	26.2 mm (1.0 in)
2014	45.2 mm (1.8 in)
2015	35.3 mm (1.4 in)
2016	29.2 mm (1.1 in)
2017	31.2 mm (1.2 in)
2018	26.4 mm (1.0 in)
2019	37.1 mm (1.5 in)
2020	23.4 mm (0.9 in)
2021	31.2 mm (1.2 in)
2022	37.6 mm (1.5 in)
2023	74.4 mm (2.9 in)
2024	39.9 mm (1.6 in)
2025	29.2 mm (1.1 in)
2026	26.7 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Denver Water Dept, 1997 to 2026. The record is 113.9 mm (4.5 in) in 2023, marked on the chart; the median year is 55.9 mm (2.2 in).

Wettest five days (Rx5day) at Denver Water Dept by year
Year	Wettest five days (Rx5day)
1997	11.9 mm (0.5 in)
1998	50.3 mm (2.0 in)
1999	85.3 mm (3.4 in)
2000	42.2 mm (1.7 in)
2001	66.5 mm (2.6 in)
2002	37.8 mm (1.5 in)
2003	73.3 mm (2.9 in)
2004	89.2 mm (3.5 in)
2005	56.1 mm (2.2 in)
2006	43.5 mm (1.7 in)
2007	67.1 mm (2.6 in)
2008	57.7 mm (2.3 in)
2009	80.2 mm (3.2 in)
2010	45.2 mm (1.8 in)
2011	59.7 mm (2.4 in)
2012	65.5 mm (2.6 in)
2013	56.1 mm (2.2 in)
2014	88.1 mm (3.5 in)
2015	86.1 mm (3.4 in)
2016	39.1 mm (1.5 in)
2017	45.3 mm (1.8 in)
2018	42.6 mm (1.7 in)
2019	38.4 mm (1.5 in)
2020	24.2 mm (1.0 in)
2021	50.0 mm (2.0 in)
2022	61.4 mm (2.4 in)
2023	113.9 mm (4.5 in)
2024	55.7 mm (2.2 in)
2025	42.5 mm (1.7 in)
2026	34.6 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Denver Water Dept, 1997 to 2026. The record is 49 days in 2018, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Denver Water Dept by year
Year	Longest dry spell (CDD)
1997	20 days
1998	36 days
1999	33 days
2000	29 days
2001	23 days
2002	36 days
2003	42 days
2004	32 days
2005	28 days
2006	34 days
2007	25 days
2008	29 days
2009	33 days
2010	44 days
2011	34 days
2012	39 days
2013	30 days
2014	24 days
2015	24 days
2016	36 days
2017	34 days
2018	49 days
2019	21 days
2020	46 days
2021	43 days
2022	32 days
2023	39 days
2024	42 days
2025	27 days
2026	43 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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Denver Water Dept falls on 1 May and the median first autumn frost on 12 October, which leaves a median of 159 days between them.

Frost dates and growing season at Denver Water Dept
Measure	Median, all years	Earliest period	Recent period (1998 to 2025)	Recent against earliest	Fitted trend
Last spring frost	1 May	n/a	1 May	n/a	n/a
First autumn frost	12 October	n/a	12 October	n/a	n/a
Growing days	159 days	n/a	159 days	n/a	n/a

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.

Download the Data

Data for Denver Water Dept standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Denver Water Dept threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2025-12-31. Last revised 31 December 2025 (2025-12-31).