Historical Weather in Fort Collins, CO
See 55+ years of weather history for any date in Fort Collins going back to 1970.
Part of Colorado weather history · Colorado temperature records
Look Up a Specific Date
Today in Fort Collins Weather HistorySee records, averages, and 55+ years of data for today's date
→Trending Now
Monthly Climate Averages
Historical temperature and precipitation averages for Fort Collins, CO, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 87°F / Low: 58°F
Coldest MonthDecemberAvg High: 43°F / Low: 18°F
Jan
43°/ 17°
💧 2.5"
❄️ 1.6"
Feb
46°/ 20°
💧 2.3"
❄️ 1.4"
Mar
55°/ 28°
💧 5.3"
❄️ 2.2"
Apr
61°/ 34°
💧 5.8"
❄️ 2.0"
May
69°/ 43°
💧 6.1"
❄️ 2.7"
Jun
81°/ 52°
💧 5.4"
❄️ 0.7"
Jul
87°/ 58°
💧 4.7"
Aug
84°/ 56°
💧 4.1"
Sep
77°/ 48°
💧 4.9"
❄️ 2.5"
Oct
64°/ 36°
💧 4.8"
❄️ 2.7"
Nov
52°/ 26°
💧 3.9"
❄️ 2.1"
Dec
43°/ 18°
💧 2.8"
❄️ 1.8"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Fort Collins, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
Fort Collins, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
Fort Collins, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Cooler
Hotter
20°40°60°80°100°
Best Time to Visit Fort Collins, CO
Fort Collins, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
Fort Collins Temperature Records
- Record High: The hottest temperature ever recorded in Fort Collins, CO is 106°F, set on July 19, 2022.
- Record Low: The coldest temperature ever recorded in Fort Collins, CO is -31°F, set on December 22, 1990.
- Data Coverage: Based on 57 years of data from NOAA weather station: FT COLLINS.
All-Time Record High
106°F
July 19, 2022
All-Time Record Low
-31°F
December 22, 1990
Monthly Temperature Records in Fort Collins
| Month | Record High | Record Low |
|---|---|---|
| January | 75°F(2015) | -28°F(1984) |
| February | 77°F(2017) | -26°F(1996) |
| March | 83°F(2015) | -13°F(2019) |
| April | 89°F(1992) | -5°F(1975) |
| May | 98°F(2000) | 10°F(2013) |
| June | 105°F(2021) | 32°F(2007) |
| July | 106°F(2022) | 42°F(1993) |
| August | 103°F(2024) | 38°F(1992) |
| September | 103°F(2019) | 18°F(1985) |
| October | 91°F(2024) | -8°F(2020) |
| November | 81°F(2006) | -15°F(1993) |
| December | 75°F(2025) | -31°F(1990) |
Fort Collins Snow RecordsSee the top 10 snowiest days ever recorded
→National Parks in Colorado
Holiday Weather in Fort Collins
Weather Analysis & Trends
RecordsHottest Temperatures Ever Recorded in Every US StateAll 50 state record highs ranked, including Colorado.Severe WeatherTornado Season 2026: Forecasts & What to ExpectAn EF5 already, and the peak still ahead.Climate ForecastEl Niño 2026: What Every US Region Should Expect85% likely by late 2026. Region-by-region impact analysis.