Montrose Rgnl AP Weather Records (USW00093013)

Record envelope, standing records and threshold days for Montrose Rgnl AP (USW00093013), Colorado, United States, with 31 years of record.

Key Facts for Montrose Rgnl AP

Montrose Rgnl AP (USW00093013) is a weather station in Colorado, United States at 38.51 latitude and -107.90 longitude, 1,740 m (5,707 ft) above sea level.
The station reports from 1996 to 2026, 31 years of record.
1,464 records set at Montrose Rgnl AP 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, 38.51 latitude, -107.90 longitude.
Elevation: 1,740 m (5,707 ft).
Period of record: 1996 to 2026, 31 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

38 days at or beyond a record

The band shows the record high and record low for each calendar day at Montrose Rgnl AP. The lines show the 2026 daily maximum and minimum. 38 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Montrose Rgnl AP, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.0 C (59.0 F)	-25.6 C (-14.1 F)	11.1 C (52.0 F)	-19.3 C (-2.7 F)
Feb	20.0 C (68.0 F)	-23.3 C (-9.9 F)	20.0 C (68.0 F)	-14.3 C (6.3 F)
Mar	26.1 C (79.0 F)	-17.8 C (0.0 F)	24.4 C (75.9 F)	-7.7 C (18.1 F)
Apr	29.4 C (84.9 F)	-8.9 C (16.0 F)	27.8 C (82.0 F)	-7.7 C (18.1 F)
May	36.7 C (98.1 F)	-4.3 C (24.3 F)	32.8 C (91.0 F)	1.1 C (34.0 F)
Jun	37.8 C (100.0 F)	1.1 C (34.0 F)	36.1 C (97.0 F)	7.8 C (46.0 F)
Jul	38.3 C (100.9 F)	6.1 C (43.0 F)	36.7 C (98.1 F)	12.8 C (55.0 F)
Aug	37.8 C (100.0 F)	5.0 C (41.0 F)	36.7 C (98.1 F)	10.0 C (50.0 F)
Sep	35.6 C (96.1 F)	-3.9 C (25.0 F)	31.7 C (89.1 F)	5.0 C (41.0 F)
Oct	31.1 C (88.0 F)	-17.1 C (1.2 F)	29.4 C (84.9 F)	-3.3 C (26.1 F)
Nov	23.9 C (75.0 F)	-22.7 C (-8.9 F)	20.6 C (69.1 F)	-4.4 C (24.1 F)
Dec	18.9 C (66.0 F)	-25.0 C (-13.0 F)	18.9 C (66.0 F)	-10.0 C (14.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Montrose Rgnl AP still stand. 2000 holds the most, with 69.

Standing records at Montrose Rgnl AP by the year they were set
Year set	Standing records
1996	39
1997	56
1998	62
1999	51
2000	69
2001	47
2002	49
2003	50
2004	55
2005	51
2006	59
2007	60
2008	43
2009	53
2010	47
2011	39
2012	45
2013	61
2014	41
2015	62
2016	36
2017	54
2018	32
2019	43
2020	44
2021	40
2022	44
2023	45
2024	32
2025	55

Wettest Day of Each Month

Aug: 32.3 mm (1.3 in)

The wettest day on record for each calendar month at Montrose Rgnl AP. The most was 32.3 mm (1.3 in) on 19 August 2021.

Record daily precipitation for each month at Montrose Rgnl AP
Month	Record daily precipitation (mm)	Date
Jan	13.2 mm (0.5 in)	31 January 2014
Feb	16.8 mm (0.7 in)	22 February 2015
Mar	13.5 mm (0.5 in)	12 March 2019
Apr	17.0 mm (0.7 in)	30 April 1999
May	18.8 mm (0.7 in)	3 May 2001
Jun	12.7 mm (0.5 in)	20 June 2024
Jul	24.1 mm (0.9 in)	31 July 1999
Aug	32.3 mm (1.3 in)	19 August 2021
Sep	22.6 mm (0.9 in)	22 September 2013
Oct	25.9 mm (1.0 in)	2 October 2022
Nov	18.5 mm (0.7 in)	28 November 2006
Dec	16.8 mm (0.7 in)	4 December 2013

Period of Record Coverage

1996 to 2025

30 years of record at Montrose Rgnl AP, 1996 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1996.

Days with data per year at Montrose Rgnl AP
Year	Days with data	Share of year	Complete
1996	182	50%	No
1997	359	98%	Yes
1998	361	99%	Yes
1999	364	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	364	100%	Yes
2003	364	100%	Yes
2004	365	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	363	99%	Yes
2008	360	98%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	361	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	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	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

29 complete years, 1997 to 2025

One stripe for each of 29 complete years at Montrose Rgnl AP, 1997 to 2025. Blue stripes are years cooler than the station's own mean of 10.4 C (50.8 F); red stripes are warmer. The coolest year was 2013, at 9.5 C (49.0 F), and the warmest was 2025, at 11.7 C (53.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Montrose Rgnl AP as warming stripes, 1997 to 2025
Year	Annual mean temperature	Difference from the station mean
1997	9.5 C	-0.91 C
1998	10.2 C	-0.27 C
1999	10.0 C	-0.44 C
2000	10.8 C	+0.33 C
2001	10.7 C	+0.28 C
2002	9.9 C	-0.48 C
2003	10.8 C	+0.36 C
2004	9.6 C	-0.81 C
2005	10.7 C	+0.28 C
2006	10.2 C	-0.25 C
2007	10.3 C	-0.09 C
2008	9.6 C	-0.87 C
2009	10.0 C	-0.45 C
2010	10.3 C	-0.17 C
2011	9.6 C	-0.82 C
2012	11.4 C	+0.99 C
2013	9.5 C	-0.97 C
2014	10.8 C	+0.39 C
2015	10.9 C	+0.48 C
2016	10.6 C	+0.21 C
2017	11.4 C	+0.94 C
2018	10.8 C	+0.40 C
2019	9.7 C	-0.72 C
2020	10.5 C	+0.11 C
2021	11.0 C	+0.60 C
2022	10.3 C	-0.11 C
2023	10.2 C	-0.20 C
2024	11.3 C	+0.83 C
2025	11.7 C	+1.31 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

1996 to 2026

Yearly extremes at Montrose Rgnl AP: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	2002	36.7 C (98.1 F)	31
Coldest night (TNn)	-25.6 C (-14.1 F)	2011	-20.5 C (-4.9 F)	31
Wettest day (Rx1day)	36.1 mm (1.4 in)	2026	17.3 mm (0.7 in)	29
Wettest five days (Rx5day)	51.3 mm (2.0 in)	2026	28.3 mm (1.1 in)	29
Longest dry spell (CDD)	112 days	2002	41 days	29

Hottest day (TXx)

The hottest day of the year at Montrose Rgnl AP, 1996 to 2026. The record is 38.3 C (100.9 F) in 2002, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Montrose Rgnl AP by year
Year	Hottest day (TXx)
1996	36.1 C (97.0 F)
1997	36.1 C (97.0 F)
1998	37.8 C (100.0 F)
1999	35.6 C (96.1 F)
2000	36.7 C (98.1 F)
2001	37.2 C (99.0 F)
2002	38.3 C (100.9 F)
2003	38.3 C (100.9 F)
2004	36.1 C (97.0 F)
2005	38.3 C (100.9 F)
2006	36.7 C (98.1 F)
2007	37.8 C (100.0 F)
2008	37.8 C (100.0 F)
2009	36.1 C (97.0 F)
2010	37.8 C (100.0 F)
2011	35.6 C (96.1 F)
2012	37.2 C (99.0 F)
2013	37.2 C (99.0 F)
2014	36.7 C (98.1 F)
2015	36.7 C (98.1 F)
2016	37.2 C (99.0 F)
2017	36.7 C (98.1 F)
2018	37.2 C (99.0 F)
2019	35.6 C (96.1 F)
2020	36.7 C (98.1 F)
2021	37.8 C (100.0 F)
2022	36.7 C (98.1 F)
2023	37.2 C (99.0 F)
2024	36.1 C (97.0 F)
2025	36.7 C (98.1 F)
2026	38.3 C (100.9 F)

Coldest night (TNn)

The coldest night of the year at Montrose Rgnl AP, 1996 to 2026. The record is -25.6 C (-14.1 F) in 2011, marked on the chart; the median year is -20.5 C (-4.9 F).

Coldest night (TNn) at Montrose Rgnl AP by year
Year	Coldest night (TNn)
1996	-17.2 C (1.0 F)
1997	-18.9 C (-2.0 F)
1998	-25.0 C (-13.0 F)
1999	-17.8 C (0.0 F)
2000	-17.2 C (1.0 F)
2001	-15.6 C (3.9 F)
2002	-23.3 C (-9.9 F)
2003	-17.2 C (1.0 F)
2004	-23.9 C (-11.0 F)
2005	-18.9 C (-2.0 F)
2006	-22.7 C (-8.9 F)
2007	-22.7 C (-8.9 F)
2008	-20.5 C (-4.9 F)
2009	-23.2 C (-9.8 F)
2010	-18.2 C (-0.8 F)
2011	-25.6 C (-14.1 F)
2012	-20.5 C (-4.9 F)
2013	-24.9 C (-12.8 F)
2014	-18.8 C (-1.8 F)
2015	-23.2 C (-9.8 F)
2016	-20.5 C (-4.9 F)
2017	-23.2 C (-9.8 F)
2018	-15.5 C (4.1 F)
2019	-24.3 C (-11.7 F)
2020	-17.1 C (1.2 F)
2021	-14.9 C (5.2 F)
2022	-20.5 C (-4.9 F)
2023	-21.0 C (-5.8 F)
2024	-17.1 C (1.2 F)
2025	-19.3 C (-2.7 F)
2026	-17.2 C (1.0 F)

Wettest day (Rx1day)

The wettest day of the year at Montrose Rgnl AP, 1996 to 2026. The record is 36.1 mm (1.4 in) in 2026, marked on the chart; the median year is 17.3 mm (0.7 in).

Wettest day (Rx1day) at Montrose Rgnl AP by year
Year	Wettest day (Rx1day)
1996	n/a
1997	n/a
1998	24.4 mm (1.0 in)
1999	24.1 mm (0.9 in)
2000	14.2 mm (0.6 in)
2001	18.8 mm (0.7 in)
2002	15.0 mm (0.6 in)
2003	19.6 mm (0.8 in)
2004	19.3 mm (0.8 in)
2005	14.5 mm (0.6 in)
2006	19.0 mm (0.7 in)
2007	16.5 mm (0.6 in)
2008	7.6 mm (0.30 in)
2009	11.7 mm (0.5 in)
2010	17.3 mm (0.7 in)
2011	16.5 mm (0.6 in)
2012	19.8 mm (0.8 in)
2013	22.6 mm (0.9 in)
2014	19.1 mm (0.8 in)
2015	16.8 mm (0.7 in)
2016	22.1 mm (0.9 in)
2017	13.2 mm (0.5 in)
2018	10.4 mm (0.4 in)
2019	13.5 mm (0.5 in)
2020	10.2 mm (0.4 in)
2021	32.3 mm (1.3 in)
2022	25.9 mm (1.0 in)
2023	18.0 mm (0.7 in)
2024	14.2 mm (0.6 in)
2025	16.8 mm (0.7 in)
2026	36.1 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Montrose Rgnl AP, 1996 to 2026. The record is 51.3 mm (2.0 in) in 2026, marked on the chart; the median year is 28.3 mm (1.1 in).

Wettest five days (Rx5day) at Montrose Rgnl AP by year
Year	Wettest five days (Rx5day)
1996	n/a
1997	n/a
1998	34.5 mm (1.4 in)
1999	44.5 mm (1.8 in)
2000	18.1 mm (0.7 in)
2001	36.8 mm (1.4 in)
2002	20.9 mm (0.8 in)
2003	34.4 mm (1.4 in)
2004	43.4 mm (1.7 in)
2005	26.2 mm (1.0 in)
2006	36.8 mm (1.4 in)
2007	30.4 mm (1.2 in)
2008	12.9 mm (0.5 in)
2009	21.3 mm (0.8 in)
2010	35.5 mm (1.4 in)
2011	27.5 mm (1.1 in)
2012	20.3 mm (0.8 in)
2013	26.9 mm (1.1 in)
2014	29.7 mm (1.2 in)
2015	25.4 mm (1.0 in)
2016	35.6 mm (1.4 in)
2017	28.3 mm (1.1 in)
2018	16.8 mm (0.7 in)
2019	23.1 mm (0.9 in)
2020	11.7 mm (0.5 in)
2021	35.3 mm (1.4 in)
2022	36.9 mm (1.5 in)
2023	20.0 mm (0.8 in)
2024	30.3 mm (1.2 in)
2025	27.0 mm (1.1 in)
2026	51.3 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Montrose Rgnl AP, 1996 to 2026. The record is 112 days in 2002, marked on the chart; the median year is 41 days.

Longest dry spell (CDD) at Montrose Rgnl AP by year
Year	Longest dry spell (CDD)
1996	n/a
1997	n/a
1998	35 days
1999	63 days
2000	40 days
2001	29 days
2002	112 days
2003	62 days
2004	66 days
2005	42 days
2006	36 days
2007	32 days
2008	53 days
2009	31 days
2010	43 days
2011	31 days
2012	69 days
2013	52 days
2014	40 days
2015	30 days
2016	41 days
2017	53 days
2018	35 days
2019	50 days
2020	44 days
2021	41 days
2022	31 days
2023	59 days
2024	36 days
2025	44 days
2026	36 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Montrose Rgnl AP falls on 3 May and the median first autumn frost on 9 October, which leaves a median of 158 days between them.

Fitted over all years, the growing season changes by +11.3 days per decade at this station.

Frost dates and growing season at Montrose Rgnl AP
Measure	Median, all years	Earliest period	Recent period (1997 to 2025)	Recent against earliest	Fitted trend
Last spring frost	3 May	n/a	3 May	n/a	-5.7 days per decade
First autumn frost	9 October	n/a	9 October	n/a	+5.5 days per decade
Growing days	158 days	n/a	158 days	n/a	+11.3 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.

Download the Data

Data for Montrose Rgnl AP standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Montrose Rgnl AP 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 2026-10-17 (17 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).