Weather

Cortez weather

Right now, the week ahead, and 115 years of records for Cortez, Colorado — from the National Weather Service.

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The last 30 days

August 24, 2026 – September 22, 2026

Daily high and low against the normal range

Daily high to lowNormal range (1991–2020)
30°40°50°60°70°80°90°100°110°Normal high–low range (1991–2020)August 24, 2026: high 95°, low 56° (normal 86°/54°), 0.04 in precipitationAug 24August 25, 2026: high 94°, low 56° (normal 86°/54°)August 26, 2026: high 95°, low 57° (normal 86°/54°)August 27, 2026: high 97°, low 59° (normal 86°/54°)August 28, 2026: high 97°, low 62° (normal 86°/53°)August 30, 2026: high 87°, low 61° (normal 85°/53°), 0.01 in precipitationAugust 31, 2026: high 87°, low 57° (normal 85°/53°), 0.58 in precipitationSeptember 1, 2026: high 67°, low 50° (normal 85°/52°), 0.19 in precipitationSeptember 3, 2026: high 83°, low 52° (normal 84°/52°), 0.06 in precipitationSep 3September 4, 2026: high 84°, low 58° (normal 84°/52°)September 5, 2026: high 87°, low 54° (normal 84°/51°)September 6, 2026: high 88°, low 52° (normal 84°/51°)September 8, 2026: high 85°, low 56° (normal 83°/50°)Sep 8September 9, 2026: high 90°, low 51° (normal 83°/50°)September 10, 2026: high 92°, low 46° (normal 82°/50°)September 11, 2026: high 90°, low 50° (normal 82°/49°)September 12, 2026: high 87°, low 54° (normal 82°/49°)September 13, 2026: high 90°, low 57° (normal 81°/49°)Sep 13September 14, 2026: high 90°, low 61° (normal 81°/48°)September 15, 2026: high 81°, low 55° (normal 81°/48°), 0.98 in precipitationSeptember 16, 2026: high 83°, low 56° (normal 80°/48°), 0.79 in precipitationSeptember 17, 2026: high 79°, low 58° (normal 80°/47°), 0.30 in precipitationSeptember 18, 2026: high 73°, low 57° (normal 79°/47°), 0.01 in precipitationSep 18September 19, 2026: high 81°, low 52° (normal 79°/46°)September 20, 2026: high 81°, low 45° (normal 79°/46°)September 21, 2026: high 81°, low 45° (normal 78°/46°)September 22, 2026: high 83°, low 49° (normal 78°/45°)Sep 2297°45°

Daily precipitation

0 in0.2 in0.4 in0.6 in0.8 in1 inAugust 24, 2026: 0.04 inAugust 30, 2026: 0.01 inAugust 31, 2026: 0.58 inSeptember 1, 2026: 0.19 inSeptember 3, 2026: 0.06 inSeptember 15, 2026: 0.98 inSeptember 16, 2026: 0.79 inSeptember 17, 2026: 0.30 inSeptember 18, 2026: 0.01 inAug 24Aug 29Sep 3Sep 8Sep 13Sep 18
This month so far
2.33 in
normal to date 1.10 in · 212%
2026 so far
8.08 in
normal to date 8.63 in · 94%
Water year since Oct. 1
11.35 in
normal to date 11.45 in · 99%
Snow, 2026–27 season
0.0 in
season runs July through June
Average temperature, 2026 so far
58.4°
+4.2° vs. normal for the same dates
Days at 90° or hotter this year
72
a full year averages 41.9 (1991–2020)

Readings from the National Weather Service cooperative station in Cortez, through September 22, 2026. The station reports once a day, so the latest day can lag.

A Cortez year, month by month

1991–2020 normals

Normal high and low

20°40°60°80°100°Jan: normal high 42.9°, low 16.6°Jan17°Feb: normal high 47.2°, low 21.5°FebMar: normal high 56°, low 27.6°MarApr: normal high 63.5°, low 32.9°AprMay: normal high 73.4°, low 41.3°MayJun: normal high 85.3°, low 49.4°JunJul: normal high 90.5°, low 57.2°Jul91°Aug: normal high 87.7°, low 55.8°AugSep: normal high 80.1°, low 47.5°SepOct: normal high 67.4°, low 35.5°OctNov: normal high 54.1°, low 25.8°NovDec: normal high 43.2°, low 17.7°Dec

Precipitation (rain plus melted snow)

0 in0.5 in1 in1.5 inJan: 1.06 in normal precipitationFeb: 0.96 in normal precipitationMar: 0.86 in normal precipitationApr: 0.72 in normal precipitationMay: 0.93 in normal precipitationJun: 0.37 in normal precipitationJul: 1.25 in normal precipitationAug: 1.34 in normal precipitationSep: 1.48 in normal precipitationOct: 1.08 in normal precipitationNov: 0.85 in normal precipitationDec: 0.89 in normal precipitationJanFebMarAprMayJunJulAugSepOctNovDec

Snowfall

0 in2 in4 in6 in8 inJan: 8.0 in normal snowfallFeb: 7.2 in normal snowfallMar: 5.0 in normal snowfallApr: 2.2 in normal snowfallMay: 0.3 in normal snowfallOct: 0.6 in normal snowfallNov: 2.7 in normal snowfallDec: 7.4 in normal snowfallJanFebMarAprMayJunJulAugSepOctNovDec
MonthNormal highNormal lowPrecipitationSnowfallRecord highRecord lowWettest monthSnowiest month
January43°17°1.06 in8.0 in63° (1994)−27° (1963)3.51 in (1957)34.3 in (1949)
February47°22°0.96 in7.2 in79° (1986)−31° (1933)3.86 in (1915)41.0 in (1915)
March56°28°0.86 in5.0 in86° (2026)−7° (1939)4.60 in (1995)32.0 in (1916)
April64°33°0.72 in2.2 in88° (1932)6° (1945)3.40 in (1957)16.0 in (1932)
May73°41°0.93 in0.3 in95° (1932)15° (1990)3.82 in (1957)3.7 in (2019)
June85°49°0.37 in0.0 in102° (2021)27° (1939)2.33 in (2015)
July91°57°1.25 in0.0 in102° (2026)31° (1915)4.06 in (1957)
August88°56°1.34 in0.0 in102° (2026)30° (1915)3.80 in (1957)0.5 in (1913)
September80°48°1.48 in0.0 in99° (2022)23° (1930)4.72 in (1941)
October67°36°1.08 in0.6 in90° (2024)7° (2019)6.56 in (1972)6.3 in (1949)
November54°26°0.85 in2.7 in75° (2020)−14° (1931)2.78 in (1985)15.3 in (1931)
December43°18°0.89 in7.4 in67° (2025)−22° (1978)3.60 in (1951)38.5 in (1967)
Year66°36°11.79 in33.4 in102° (2026)−31° (1933)
Frost and the growing season
Average last spring freeze
May 14
Average first fall freeze
October 5
Frost-free season
about 144 days
Last spring freeze this year
May 7
Latest spring freeze on record
June 22 (1989)
Earliest fall freeze on record
September 9 (1962, 1941, 1929)

A freeze here means a low of 32° or colder at the Cortez station. Averages are the 1991–2020 medians; gardens on the mesas and along the river run earlier or later.

All-time records in Cortez
Hottest day
102° on August 9, 2026 (also July 12, 2026; July 23, 2022)
Coldest night
−31° on February 8, 1933
Wettest day
2.56 in on September 10, 2003
Snowiest day
14.0 in on December 19, 1951
Warmest year
2025, averaging 53.3°
Coldest year
1991, averaging 46.4°
Wettest year
1957, 26.34 in
Driest year
1989, 5.23 in
Snowiest season
1931–32, 75.4 in
Most 90° days
2020, with 73

Long-term trends

Cortez station, 1914–2025

Cortez has warmed about 0.35° per decade since 1914. The 1914–1943 average was 48.4°; the 1991–2020 normal is 50.6°, and the last ten years (2016–2025) averaged 52°. Summers have changed the most: 1914–1943 averaged 30 days a year at 90° or hotter, 1991–2020 averaged 41.9, and the last ten years 58.2. Nights at or below zero fell from 12.1 a year to 3.6. Precipitation shows no such trend — 12.57 inches a year over the whole record, 11.82 in 1991–2020 — but it swings widely from year to year.

Average annual temperature

Yearly average (years with complete records)Trend line1991–2020 normal
44°46°48°50°52°54°192019301940195019601970198019902000201020201991–2020 normal 50.9°1914: 47.3°1930: 46.7°1931: 47.4°1932: 46.7°1933: 47.4°1934: 50.5°1935: 48.6°1936: 48.8°1937: 47.5°1938: 48.5°1939: 48.6°1940: 49.3°1941: 48.1°1942: 48.7°1943: 51.4°1944: 48.7°1945: 48.4°1946: 50.9°1947: 49.2°1948: 48.6°1949: 48.4°1950: 50°1951: 49.2°1952: 48.9°1953: 49.7°1954: 51.4°1955: 48.2°1956: 49°1957: 48.9°1958: 50.4°1959: 50.5°1960: 48.9°1961: 48.7°1962: 49.6°1963: 49.6°1964: 47.5°1965: 48.3°1966: 49.5°1967: 49°1968: 47.6°1969: 49.6°1970: 48.7°1971: 48.2°1972: 49.9°1973: 47.4°1974: 48.4°1978: 48.2°1980: 48.6°1981: 49.6°1983: 47.4°1987: 47.8°1988: 47.6°1989: 48.2°1990: 47.9°1991: 46.4°1992: 47.6°1993: 47.9°1994: 49.6°1995: 49.3°1998: 51.2°1999: 50.8°2000: 51.4°2001: 51.5°2002: 50.6°2003: 52.1°2004: 50.2°2005: 50.3°2006: 51.3°2007: 51.6°2008: 49.3°2009: 50.1°2010: 50.6°2011: 50.1°2012: 52.8°2013: 50.3°2014: 52.1°2015: 52°2016: 51.7°2017: 52.5°2018: 52.4°2019: 50.3°2020: 52.1°2021: 52.1°2022: 51.8°2023: 50.8°2024: 53.2°2025: 53.3°2025: 53.3°1991: 46.4°

Days of 90° or hotter each year

0204060801914: 10 days at 90° or hotter1930: 20 days at 90° or hotter1931: 30 days at 90° or hotter1932: 13 days at 90° or hotter1933: 26 days at 90° or hotter1934: 40 days at 90° or hotter1935: 30 days at 90° or hotter1936: 45 days at 90° or hotter1937: 46 days at 90° or hotter1938: 22 days at 90° or hotter1939: 39 days at 90° or hotter1940: 47 days at 90° or hotter1941: 12 days at 90° or hotter1942: 42 days at 90° or hotter1943: 28 days at 90° or hotter1944: 39 days at 90° or hotter1945: 40 days at 90° or hotter1946: 30 days at 90° or hotter1947: 28 days at 90° or hotter1948: 36 days at 90° or hotter1949: 25 days at 90° or hotter1950: 28 days at 90° or hotter1951: 52 days at 90° or hotter1952: 35 days at 90° or hotter1953: 35 days at 90° or hotter1954: 37 days at 90° or hotter1955: 19 days at 90° or hotter1956: 28 days at 90° or hotter1957: 14 days at 90° or hotter1958: 35 days at 90° or hotter1959: 49 days at 90° or hotter1960: 51 days at 90° or hotter1961: 44 days at 90° or hotter1962: 31 days at 90° or hotter1963: 27 days at 90° or hotter1964: 22 days at 90° or hotter1965: 12 days at 90° or hotter1966: 41 days at 90° or hotter1967: 20 days at 90° or hotter1968: 23 days at 90° or hotter1969: 33 days at 90° or hotter1970: 35 days at 90° or hotter1971: 30 days at 90° or hotter1972: 32 days at 90° or hotter1973: 22 days at 90° or hotter1974: 31 days at 90° or hotter1978: 25 days at 90° or hotter1980: 36 days at 90° or hotter1981: 30 days at 90° or hotter1983: 6 days at 90° or hotter1987: 11 days at 90° or hotter1988: 17 days at 90° or hotter1989: 25 days at 90° or hotter1990: 26 days at 90° or hotter1991: 12 days at 90° or hotter1992: 12 days at 90° or hotter1993: 20 days at 90° or hotter1994: 46 days at 90° or hotter1995: 29 days at 90° or hotter1998: 30 days at 90° or hotter1999: 12 days at 90° or hotter2000: 49 days at 90° or hotter2001: 37 days at 90° or hotter2002: 58 days at 90° or hotter2003: 59 days at 90° or hotter2004: 35 days at 90° or hotter2005: 25 days at 90° or hotter2006: 43 days at 90° or hotter2007: 55 days at 90° or hotter2008: 49 days at 90° or hotter2009: 38 days at 90° or hotter2010: 25 days at 90° or hotter2011: 54 days at 90° or hotter2012: 69 days at 90° or hotter2013: 50 days at 90° or hotter2014: 39 days at 90° or hotter2015: 36 days at 90° or hotter2016: 46 days at 90° or hotter2017: 53 days at 90° or hotter2018: 60 days at 90° or hotter2019: 58 days at 90° or hotter2020: 73 days at 90° or hotter2021: 61 days at 90° or hotter2022: 54 days at 90° or hotter2023: 52 days at 90° or hotter2024: 62 days at 90° or hotter2025: 63 days at 90° or hotter1991–2020 average 41.9 days192019301940195019601970198019902000201020202020: 73 days1983: 6 days

Precipitation by year

0 in10 in20 in30 in1930: 11.64 in1931: 15.84 in1932: 12.78 in1934: 8.95 in1935: 11.21 in1936: 14.20 in1937: 12.94 in1938: 16.48 in1939: 9.52 in1940: 17.39 in1941: 25.08 in1942: 9.90 in1943: 17.26 in1944: 16.85 in1945: 11.13 in1946: 10.81 in1947: 13.87 in1948: 12.74 in1949: 13.79 in1950: 6.34 in1951: 12.90 in1952: 11.34 in1953: 13.47 in1954: 12.88 in1955: 11.96 in1956: 7.57 in1957: 26.34 in1958: 9.58 in1959: 10.82 in1960: 10.09 in1961: 13.02 in1962: 10.48 in1963: 10.46 in1964: 13.04 in1965: 21.14 in1966: 10.19 in1967: 9.44 in1968: 10.18 in1969: 14.00 in1970: 10.94 in1971: 12.09 in1972: 13.14 in1973: 14.59 in1974: 10.57 in1978: 19.85 in1980: 13.47 in1981: 10.76 in1983: 17.95 in1987: 14.68 in1988: 13.12 in1989: 5.23 in1990: 14.32 in1991: 11.23 in1992: 13.73 in1993: 12.69 in1994: 11.07 in1995: 15.82 in1996: 15.96 in1998: 14.53 in1999: 9.36 in2000: 9.45 in2001: 8.53 in2002: 8.05 in2003: 10.26 in2004: 12.21 in2005: 13.11 in2006: 13.09 in2007: 13.09 in2008: 11.90 in2009: 8.69 in2010: 15.50 in2011: 9.99 in2012: 8.09 in2013: 14.26 in2014: 9.01 in2015: 18.20 in2016: 12.78 in2017: 11.27 in2018: 10.09 in2019: 14.29 in2020: 6.49 in2021: 12.37 in2022: 8.64 in2023: 15.84 in2024: 12.78 in2025: 10.35 inNormal 11.79 in192019301940195019601970198019902000201020201957: 26.34 in1989: 5.23 in

Snowfall by season (July through June)

0 in20 in40 in60 in80 in1929–30: 38.2 in1930–31: 15.9 in1931–32: 75.4 in1932–33: 23.3 in1933–34: 15.5 in1934–35: 26.2 in1935–36: 25.1 in1936–37: 53.0 in1937–38: 33.9 in1938–39: 34.0 in1939–40: 34.9 in1940–41: 41.8 in1941–42: 49.0 in1942–43: 43.7 in1943–44: 61.5 in1944–45: 38.1 in1945–46: 27.9 in1946–47: 34.5 in1947–48: 36.6 in1948–49: 60.6 in1949–50: 39.0 in1950–51: 22.0 in1951–52: 69.6 in1952–53: 38.8 in1953–54: 22.5 in1954–55: 40.8 in1955–56: 42.8 in1956–57: 54.1 in1957–58: 39.5 in1958–59: 14.8 in1959–60: 46.6 in1960–61: 66.6 in1961–62: 46.0 in1962–63: 27.5 in1963–64: 42.5 in1964–65: 55.5 in1965–66: 38.0 in1966–67: 18.0 in1967–68: 59.0 in1968–69: 66.0 in1969–70: 29.5 in1970–71: 30.5 in1971–72: 21.5 in1980–81: 9.0 in1984–85: 37.8 in1987–88: 37.0 in1989–90: 7.0 in1991–92: 9.5 in1993–94: 5.8 in1995–96: 2.8 in1997–98: 43.3 in1998–99: 17.4 in1999–00: 32.1 in2000–01: 36.8 in2001–02: 22.6 in2002–03: 29.6 in2003–04: 31.6 in2004–05: 26.3 in2005–06: 13.4 in2006–07: 28.5 in2007–08: 46.5 in2008–09: 45.8 in2009–10: 74.6 in2017–18: 8.0 in2018–19: 59.3 in2019–20: 23.1 in2020–21: 50.6 in2021–22: 24.6 in2022–23: 64.1 in2023–24: 24.8 in2024–25: 20.7 in2025–26: 15.0 inNormal 33.4 in1910192019301940195019601970198019902000201020201931–32: 75.4 in1995–96: 2.8 in

Gaps are years the station's record is too incomplete to total. Snow measurements were spotty at the Cortez station through the 1970s, '80s and '90s. 2026 so far: 58.4° average, 8.08 in, 72 days at 90° or hotter.

By the decade

DecadeAverage temperaturePrecipitation per yearSnowfall per seasonDays at 90° or hotterNights at 0° or colder
1930s48.1°12.62 in33.7 in31.114.5
1940s49.2°14.88 in43.3 in32.78.7
1950s49.6°12.32 in39.2 in33.25.9
1960s48.8°12.20 in44.9 in30.410.3
1970s48.5°13.53 in26.0 in29.210.3
1980s48.2°12.54 in22.7 in20.86.3
1990s48.8°13.19 in18.5 in23.44.9
2000s50.8°10.84 in35.6 in44.82.9
2010s51.5°12.35 in30.1 in49.04.7
2020s (through 2026)52.2°11.08 in33.3 in60.81.0

Decades are averages of the years with complete records; the 1910s and 1920s have too few to average. A single cooperative station's record carries the marks of observer changes and equipment moves over a century, so treat the trend as the shape of the record, not a measurement to the tenth of a degree.

Year-by-year table, 1911–2026
YearAverage temperatureAverage highAverage lowPrecipitationSnow, season starting JulyDays at 90° or hotterNights at 0° or colder
1911
1912
1913
191447.3°63°31°1013
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
192938.2 in
193046.7°64°30°11.64 in15.9 in2018
193147.4°64°31°15.84 in75.4 in3023
193246.7°64°29°12.78 in23.3 in1324
193347.4°65°30°15.5 in2631
193450.5°68°33°8.95 in26.2 in401
193548.6°65°32°11.21 in25.1 in304
193648.8°66°32°14.20 in53.0 in453
193747.5°66°29°12.94 in33.9 in4626
193848.5°64°33°16.48 in34.0 in223
193948.6°66°31°9.52 in34.9 in3912
194049.3°65°33°17.39 in41.8 in4711
194148.1°63°33°25.08 in49.0 in122
194248.7°66°31°9.90 in43.7 in427
194351.4°68°35°17.26 in61.5 in284
194448.7°65°32°16.85 in38.1 in394
194548.4°65°32°11.13 in27.9 in407
194650.9°67°34°10.81 in34.5 in305
194749.2°65°33°13.87 in36.6 in288
194848.6°65°33°12.74 in60.6 in3611
194948.4°65°32°13.79 in39.0 in2528
195050°67°33°6.34 in22.0 in285
195149.2°66°33°12.90 in69.6 in5210
195248.9°65°33°11.34 in38.8 in358
195349.7°66°34°13.47 in22.5 in355
195451.4°68°35°12.88 in40.8 in373
195548.2°64°32°11.96 in42.8 in1916
195649°66°32°7.57 in54.1 in285
195748.9°63°35°26.34 in39.5 in142
195850.4°67°34°9.58 in14.8 in354
195950.5°66°35°10.82 in46.6 in491
196048.9°64°33°10.09 in66.6 in5112
196148.7°64°33°13.02 in46.0 in4410
196249.6°65°34°10.48 in27.5 in3112
196349.6°65°34°10.46 in42.5 in2711
196447.5°63°32°13.04 in55.5 in229
196548.3°63°34°21.14 in38.0 in125
196649.5°66°34°10.19 in18.0 in4115
196749°65°33°9.44 in59.0 in2012
196847.6°63°32°10.18 in66.0 in2315
196949.6°65°35°14.00 in29.5 in332
197048.7°64°34°10.94 in30.5 in354
197148.2°64°33°12.09 in21.5 in3012
197249.9°65°34°13.14 in327
197347.4°63°32°14.59 in2216
197448.4°64°33°10.57 in3113
1975
1976
1977
197848.2°63°34°19.85 in2510
1979
198048.6°64°33°13.47 in9.0 in360
198149.6°66°34°10.76 in301
1982
198347.4°61°33°17.95 in61
198437.8 in
1985
1986
198747.8°64°32°14.68 in37.0 in117
198847.6°64°31°13.12 in1711
198948.2°66°30°5.23 in7.0 in2518
199047.9°64°31°14.32 in2613
199146.4°63°30°11.23 in9.5 in129
199247.6°63°32°13.73 in1210
199347.9°63°32°12.69 in5.8 in201
199449.6°65°34°11.07 in465
199549.3°65°33°15.82 in2.8 in291
199615.96 in
199743.3 in
199851.2°66°36°14.53 in17.4 in300
199950.8°66°36°9.36 in32.1 in120
200051.4°66°37°9.45 in36.8 in492
200151.5°67°36°8.53 in22.6 in372
200250.6°66°35°8.05 in29.6 in580
200352.1°67°37°10.26 in31.6 in591
200450.2°65°36°12.21 in26.3 in352
200550.3°65°36°13.11 in13.4 in251
200651.3°67°36°13.09 in28.5 in430
200751.6°67°36°13.09 in46.5 in555
200849.3°65°34°11.90 in45.8 in4910
200950.1°66°35°8.69 in74.6 in386
201050.6°66°36°15.50 in255
201150.1°65°35°9.99 in5411
201252.8°69°37°8.09 in691
201350.3°66°35°14.26 in5013
201452.1°68°37°9.01 in390
201552°67°37°18.20 in367
201651.7°67°36°12.78 in465
201752.5°68°37°11.27 in8.0 in532
201852.4°68°36°10.09 in59.3 in600
201950.3°65°35°14.29 in23.1 in583
202052.1°69°36°6.49 in50.6 in730
202152.1°68°37°12.37 in24.6 in610
202251.8°67°36°8.64 in64.1 in540
202350.8°66°36°15.84 in24.8 in523
202453.2°69°38°12.78 in20.7 in622
202553.3°69°37°10.35 in15.0 in631
2026 (so far)58.4°8.08 in0.0 in so far720

A dash means the year's record is too incomplete to total. Snow seasons run July through June and are listed under the year they begin.

About this page

Live conditions come from the National Weather Service's automated station at Cortez–Montezuma County Airport (KCEZ), which reports about hourly. Forecasts and warnings are issued by the NWS forecast office in Grand Junction for the Cortez grid point. Both update in your browser while the page is open; nothing here is our own forecast.

Climate records are the daily observations of the NWS Cooperative Observer station "Cortez" (station 051886, 6,167 feet, in town), which has measured high and low temperature, precipitation and snowfall since April 1911. We read them through the NOAA Regional Climate Centers' archive — the same source behind the NWS "NOWData" climate pages — and recompute the records, totals and trends each morning when the site is rebuilt. Normals are NOAA's official 1991–2020 averages. Records through September 22, 2026.

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