Dietmar Rabich / CC BY-SA 4.0
Greeley, CO Weather on September 13
September 13th in Greeley, CO typically brings warm fall weather, with average highs around 80°F and lows near 48°F — a 32°F daily swing. Over 55 years of records, the warmest September 13th was in 1990 (75°F average), while the coldest was 1993 (41°F) — a 34°F range across recorded history. Precipitation has occurred on 27% of recorded September 13th dates, with snow falling 2% of the time (heaviest snowfall: 2"). The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
What to Expect on September 13
Planning for September 13th in Greeley, CO? Stay hydrated and seek shade during peak afternoon hours.
September 13 Weather Records for Greeley
- •The all-time record high for September 13th in Greeley, CO is 99°F, set in 1990.
- •The coldest September 13th on record dropped to 31°F in 2014.
- •Temperatures have reached 90°F or higher on September 13th in 10 of the last 55 years.
- •A freeze (32°F or below) has occurred on September 13th in 1 of the last 55 years.
- •Last year (1971), September 13th was 12°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest September 13 ever in Greeley?
The warmest September 13 in Greeley, CO reached 99°F in 1990. That is 19°F above the long-term average high of 80°F.
What was the coldest September 13 ever in Greeley?
The coldest September 13 in Greeley, CO dropped to 31°F in 2014. That is 17°F below the long-term average low of 48°F.
What is the average temperature on September 13 in Greeley?
On September 13, Greeley averages a high of 80°F and a low of 48°F based on 55 years of NOAA weather observations from GREELEY UNC.
How many years of weather data are available for September 13 in Greeley?
We have 55 years of weather records for September 13 in Greeley, CO, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
September 13 Weather History in Greeley
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 85°F | 53°F | 0.26" | -- |
| 2024 | 87°F | 54°F | 0" | -- |
| 2023 | 83°F | 47°F | 0" | -- |
| 2022 | 92°F | 52°F | 0" | -- |
| 2021 | 93°F | 56°F | 0" | -- |
| 2020 | 88°F | 45°F | 0" | -- |
| 2019 | 82°F | 47°F | 0" | -- |
| 2018 | 98°F | 51°F | 0" | -- |
| 2017 | 94°F | 56°F | 0.01" | -- |
| 2016 | 71°F | 46°F | 0.03" | -- |
| 2015 | 91°F | 51°F | 0" | -- |
| 2014 | 72°F | 31°F | 0.01" | -- |
| 2013 | 76°F | 59°F | 0.5" | -- |
| 2012 | 73°F | 50°F | 0" | -- |
| 2011 | 84°F | 54°F | 0" | -- |
| 2010 | 94°F | 43°F | 0" | -- |
| 2009 | 82°F | 48°F | 0.12" | -- |
| 2008 | 81°F | 44°F | 0" | -- |
| 2007 | 91°F | 50°F | 0" | -- |
| 2006 | 88°F | 46°F | 0" | -- |
| 2005 | 88°F | 50°F | 0" | -- |
| 2004 | 88°F | 61°F | 0" | -- |
| 2003 | 64°F | 44°F | 0.01" | -- |
| 2002 | 75°F | 51°F | 0.31" | -- |
| 2001 | 87°F | 50°F | 0" | -- |
| 2000 | 92°F | 51°F | 0" | -- |
| 1999 | 69°F | 39°F | 0" | -- |
| 1998 | 81°F | 54°F | 0.07" | -- |
| 1997 | 89°F | 52°F | 0.15" | -- |
| 1996 | 77°F | 51°F | 0" | -- |
| 1995 | 85°F | 49°F | 0" | -- |
| 1994 | 86°F | 58°F | 0.22" | -- |
| 1993 | 48°F | 33°F | 0.41" | 2" |
| 1992 | 87°F | 55°F | 0" | -- |
| 1991 | 77°F | 53°F | 0" | -- |
| 1990 | 99°F | 51°F | 0" | -- |
| 1989 | 60°F | 35°F | 0" | -- |
| 1988 | 51°F | 44°F | 0.14" | -- |
| 1987 | 88°F | 46°F | 0" | -- |
| 1986 | 63°F | 49°F | 0" | -- |
| 1985 | 77°F | 43°F | 0" | -- |
| 1984 | 72°F | 54°F | 0" | -- |
| 1983 | 80°F | 44°F | 0" | -- |
| 1982 | 56°F | 45°F | 1.01" | -- |
| 1981 | 89°F | 49°F | 0" | -- |
| 1980 | 81°F | 46°F | 0" | -- |
| 1979 | 68°F | 40°F | 0" | -- |
| 1978 | 77°F | 40°F | 0" | -- |
| 1977 | 76°F | 46°F | 0.06" | -- |
| 1976 | 75°F | 48°F | 0" | -- |
| 1975 | 70°F | 41°F | 0" | -- |
| 1974 | 60°F | 41°F | 0" | -- |
| 1973 | 79°F | 50°F | 0" | -- |
| 1972 | 80°F | 51°F | 0" | -- |
| 1971 | 92°F | 45°F | 0" | -- |
Based on 55 years of data from NOAA station: GREELEY UNC
Monthly Climate Averages
Historical temperature and precipitation averages for Greeley, CO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.