Colorado Climate Center
@climate.colostate.edu
Climate monitoring, climate research, and climate services for Colorado.
Based at the Department of Atmospheric Science, Colorado State University. https://climate.colostate.edu
Based at the Department of Atmospheric Science, Colorado State University. https://climate.colostate.edu
Water Year 2025 was the 10th warmest on record for Colorado and featured drought, fires, floods, and even a record-setting snowstorm. We recap all that and more in our Colorado Water Year 2025 Summary! ⬇️
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November 10, 2025 at 6:06 PM
Water Year 2025 was the 10th warmest on record for Colorado and featured drought, fires, floods, and even a record-setting snowstorm. We recap all that and more in our Colorado Water Year 2025 Summary! ⬇️
Reposted by Colorado Climate Center
Big temperature swings this week!
Loop: Map showing the forecast high (max) temperature departure from normal Today - Sunday.
🟦Much BELOW normal temperatures
🟥Much ABOVE normal temperatures
weather.gov
Loop: Map showing the forecast high (max) temperature departure from normal Today - Sunday.
🟦Much BELOW normal temperatures
🟥Much ABOVE normal temperatures
weather.gov
November 10, 2025 at 4:27 PM
Big temperature swings this week!
Loop: Map showing the forecast high (max) temperature departure from normal Today - Sunday.
🟦Much BELOW normal temperatures
🟥Much ABOVE normal temperatures
weather.gov
Loop: Map showing the forecast high (max) temperature departure from normal Today - Sunday.
🟦Much BELOW normal temperatures
🟥Much ABOVE normal temperatures
weather.gov
Reposted by Colorado Climate Center
The Guinness World Records lists the largest volunteer weather observation network as CoCoRaHS based out of CSU at our @climate.colostate.edu. CoCoRaHS is a grassroots volunteer network of backyard weather observers of all ages and backgrounds.
www.guinnessworldrecords.com/world-record...
www.guinnessworldrecords.com/world-record...
November 10, 2025 at 4:10 PM
The Guinness World Records lists the largest volunteer weather observation network as CoCoRaHS based out of CSU at our @climate.colostate.edu. CoCoRaHS is a grassroots volunteer network of backyard weather observers of all ages and backgrounds.
www.guinnessworldrecords.com/world-record...
www.guinnessworldrecords.com/world-record...
“Some of the smaller, more local reservoirs saw significant improvement,” said Peter Goble, a climatologist for the Colorado Climate Center at Colorado State University. “If we look at our reservoir giants, like Powell and Mead, unfortunately at that scale this is kind of a drop in the bucket.”
October storms brought damaging floods to southwestern Colorado, but also much needed drought relief
The October floods in Colorado damaged homes and upended lives, but there was one silver lining: The water also replenished reservoirs.
coloradosun.com
November 7, 2025 at 1:11 PM
“Some of the smaller, more local reservoirs saw significant improvement,” said Peter Goble, a climatologist for the Colorado Climate Center at Colorado State University. “If we look at our reservoir giants, like Powell and Mead, unfortunately at that scale this is kind of a drop in the bucket.”
Lots of new daily high temperature records were set across Colorado yesterday, some by more than 5℉! ☀️
November 3, 2025 at 6:55 PM
Lots of new daily high temperature records were set across Colorado yesterday, some by more than 5℉! ☀️
It's been a busy couple of weeks of drought improvements across Colorado! Here's a recap of what's changed in the past two weeks across the state. 🌧️
And ICYMI, check out our previous post for a summary of the remarkable rainfall that brought these major changes to the Drought Monitor.
And ICYMI, check out our previous post for a summary of the remarkable rainfall that brought these major changes to the Drought Monitor.
October 24, 2025 at 7:07 PM
It's been a busy couple of weeks of drought improvements across Colorado! Here's a recap of what's changed in the past two weeks across the state. 🌧️
And ICYMI, check out our previous post for a summary of the remarkable rainfall that brought these major changes to the Drought Monitor.
And ICYMI, check out our previous post for a summary of the remarkable rainfall that brought these major changes to the Drought Monitor.
Some further details on the rainfall and flooding in southwest Colorado last week, including storm-total rain amounts, comparison to a similar event in October 1911, and improvements to the drought situation in the area. #cowx
More on the October 2025 rain and floods in southwest Colorado - Colorado Climate Blog
Our post from over the weekend highlighted the first round of heavy rainfall and flooding in southwest Colorado. There was a break in the rain on Sunday, October 12, and then a second round of heavy r...
climate.colostate.edu
October 20, 2025 at 3:44 PM
Some further details on the rainfall and flooding in southwest Colorado last week, including storm-total rain amounts, comparison to a similar event in October 1911, and improvements to the drought situation in the area. #cowx
There were major improvements to this week's drought monitor following the significant precipitation and flooding that impacted western CO over the past week. Changes include two-category improvements over portions of southwest CO, many of which are now drought-free. #cowx
October 16, 2025 at 11:14 PM
There were major improvements to this week's drought monitor following the significant precipitation and flooding that impacted western CO over the past week. Changes include two-category improvements over portions of southwest CO, many of which are now drought-free. #cowx
Some early analysis of the major rainfall and flooding in southwest Colorado this weekend in this blog post. It was one of the largest fall rainstorms ever to hit the region, and resulted in major flooding on the San Juan River in Pagosa Springs and on Vallecito Creek, among other locations. #cowx
Major rainfall and flooding in southwest Colorado - Colorado Climate Blog
On Friday and Saturday, southwestern Colorado experienced one of the largest fall rainstorms ever to hit the region. Rainfall totals from 2 to over 4 inches were reported at both lower and higher elev...
climate.colostate.edu
October 12, 2025 at 6:29 PM
Some early analysis of the major rainfall and flooding in southwest Colorado this weekend in this blog post. It was one of the largest fall rainstorms ever to hit the region, and resulted in major flooding on the San Juan River in Pagosa Springs and on Vallecito Creek, among other locations. #cowx
Reposted by Colorado Climate Center
Flooding forces evacuations on Vallecito Creek in southern Colorado trib.al/vZNcTyB
Flooding forces evacuations on Vallecito Creek in southern Colorado
Flooding and broken levees along a southern Colorado creek forced mandatory evacuations in La Plata County north of Vallecito Reservoir on Saturday morning.
trib.al
October 11, 2025 at 7:05 PM
Flooding forces evacuations on Vallecito Creek in southern Colorado trib.al/vZNcTyB
Follow the ongoing rainstorm in southwestern Colorado with CoAgMET: already nearly an inch of rain today near Durango! #cowx
coagmet.colostate.edu/maps/precip/...
coagmet.colostate.edu/maps/precip/...
October 10, 2025 at 5:07 PM
Follow the ongoing rainstorm in southwestern Colorado with CoAgMET: already nearly an inch of rain today near Durango! #cowx
coagmet.colostate.edu/maps/precip/...
coagmet.colostate.edu/maps/precip/...
Reposted by Colorado Climate Center
Highly unusual situation approaching western Colorado with the moisture from Hurricane Priscilla. Grand Junction has never had precipitable water over an inch (25mm) so late in the year, but looks like it will be near that level on both Fri & Sat. Six standard deviations above average! #cowx 1/2
October 8, 2025 at 2:23 PM
Highly unusual situation approaching western Colorado with the moisture from Hurricane Priscilla. Grand Junction has never had precipitable water over an inch (25mm) so late in the year, but looks like it will be near that level on both Fri & Sat. Six standard deviations above average! #cowx 1/2
Most of Colorado's lower elevations haven't yet had a freeze this fall, but it'll get cold sooner or later. Here's our blog post from last year on when first freezes tend to happen across the state. #cowx
First fall freezes - Colorado Climate Blog
Climatological fall has arrived, and although September thus far has been much warmer than normal across most of Colorado, it’s still time to be thinking about when the first freeze could happen. Now,...
climate.colostate.edu
October 7, 2025 at 1:03 PM
Most of Colorado's lower elevations haven't yet had a freeze this fall, but it'll get cold sooner or later. Here's our blog post from last year on when first freezes tend to happen across the state. #cowx
We hope you'll join us at the CSU Spur Campus in Denver on Oct 14 from 3-5pm! Our team will be talking about Colorado's climate and how it's changing.
This event is free and open to the public, but be sure to register using the link below ⬇️
This event is free and open to the public, but be sure to register using the link below ⬇️
Join our CSU Climate Hub at Spur Launch Event, Oct 14.
1️⃣Get updates on Colorado from the Colorado Climate Center @climate.colostate.edu
2️⃣Brainstorm innovative climate solutions
3️⃣Learn about climate research activities
Register and learn more: events.colostate.edu/en/8XFV416/c...
1️⃣Get updates on Colorado from the Colorado Climate Center @climate.colostate.edu
2️⃣Brainstorm innovative climate solutions
3️⃣Learn about climate research activities
Register and learn more: events.colostate.edu/en/8XFV416/c...
October 2, 2025 at 6:07 PM
We hope you'll join us at the CSU Spur Campus in Denver on Oct 14 from 3-5pm! Our team will be talking about Colorado's climate and how it's changing.
This event is free and open to the public, but be sure to register using the link below ⬇️
This event is free and open to the public, but be sure to register using the link below ⬇️
Happy New (Water) Year! 🥳 Today marks the first day of Water Year 2026. But what is a "water year" and why does it begin in October? Here's a short explainer! [1/7]
October 1, 2025 at 11:05 PM
Happy New (Water) Year! 🥳 Today marks the first day of Water Year 2026. But what is a "water year" and why does it begin in October? Here's a short explainer! [1/7]
Only some of this precipitation was incorporated in this week's U.S. Drought Monitor (the weekly data cutoff is Tuesdays at 6am MDT). Nonetheless, we still saw some drought improvements throughout the state this week! 🌧️
September 25, 2025 at 2:28 PM
Only some of this precipitation was incorporated in this week's U.S. Drought Monitor (the weekly data cutoff is Tuesdays at 6am MDT). Nonetheless, we still saw some drought improvements throughout the state this week! 🌧️
Yesterday was the wettest day in quite some time for northeastern Colorado. Widespread observations of over 1" of rain, and over 2" in some spots on the Plains.
Several inches of snow in the mountains too!
Map from coagmet.colostate.edu #cowx
Several inches of snow in the mountains too!
Map from coagmet.colostate.edu #cowx
September 24, 2025 at 3:23 PM
Yesterday was the wettest day in quite some time for northeastern Colorado. Widespread observations of over 1" of rain, and over 2" in some spots on the Plains.
Several inches of snow in the mountains too!
Map from coagmet.colostate.edu #cowx
Several inches of snow in the mountains too!
Map from coagmet.colostate.edu #cowx
9/18 Drought Update 🌵: We saw more beneficial precipitation last week, which prompted widespread improvements in western and southern Colorado in this week's US Drought Monitor. Good news for now, but we'll need additional moisture to continue chipping away at those longer-term deficits.
September 18, 2025 at 9:18 PM
9/18 Drought Update 🌵: We saw more beneficial precipitation last week, which prompted widespread improvements in western and southern Colorado in this week's US Drought Monitor. Good news for now, but we'll need additional moisture to continue chipping away at those longer-term deficits.
August Recap ⏪: Hot, dry conditions intensified drought and fanned wildfires across western Colorado, but monsoon moisture finally delivered some much-needed precipitation at the end of the month. Just how significant was that rainfall? All that and more in our monthly climate summary! col.st/STpEm
September 10, 2025 at 5:34 PM
August Recap ⏪: Hot, dry conditions intensified drought and fanned wildfires across western Colorado, but monsoon moisture finally delivered some much-needed precipitation at the end of the month. Just how significant was that rainfall? All that and more in our monthly climate summary! col.st/STpEm
Last week's sorely needed rain across western Colorado was enough to remove the D4 (exceptional) drought in the northwest. Still, though, 25% of the state is in D3 (extreme) drought, with very large precipitation deficits going back to the beginning of the year. #cowx climate.colostate.edu/drought/
September 4, 2025 at 1:53 PM
Last week's sorely needed rain across western Colorado was enough to remove the D4 (exceptional) drought in the northwest. Still, though, 25% of the state is in D3 (extreme) drought, with very large precipitation deficits going back to the beginning of the year. #cowx climate.colostate.edu/drought/
“The biggest factor is the dry spring conditions and layered on top of them a much drier than normal summer,” said Peter Goble, assistant state climatologist. “We will be watching those base flows but also soil moisture levels as we go into fall and early winter to see if those pick back up.” #cowx
Low river flows trigger calls, closures, stressed fish - Aspen Journalism
Streamflows on the Western Slope have plummeted over the last month, sending water managers scrambling to boost flows for endangered fish and ranking it among the driest years in recent history.
aspenjournalism.org
August 29, 2025 at 8:03 PM
“The biggest factor is the dry spring conditions and layered on top of them a much drier than normal summer,” said Peter Goble, assistant state climatologist. “We will be watching those base flows but also soil moisture levels as we go into fall and early winter to see if those pick back up.” #cowx
Reposted by Colorado Climate Center
Monsoonal rains are dousing western Colorado wildfires. They also come with serious flood concerns.
Monsoonal rains are dousing western Colorado wildfires. They also come with serious flood concerns.
Local officials and weather experts are watching burn scars in Colorado as monsoon rains elevate the risk of debris flows and flash floods.
coloradosun.com
August 27, 2025 at 1:43 PM
Monsoonal rains are dousing western Colorado wildfires. They also come with serious flood concerns.
Reposted by Colorado Climate Center
Flash flooding possible today in Georgia and South Carolina. By Monday, chances for heavy rain increase for the southern Plains, and may linger into late in the week. Keep up with the forecast at weather.gov, and remember: Turn Around, Don't Drown when encountering flooded roadways.
August 22, 2025 at 2:14 PM
Flash flooding possible today in Georgia and South Carolina. By Monday, chances for heavy rain increase for the southern Plains, and may linger into late in the week. Keep up with the forecast at weather.gov, and remember: Turn Around, Don't Drown when encountering flooded roadways.
Greetings from the Colorado Water Congress summer conference in beautiful (but dry) Steamboat Springs. We’re discussing our work with CoAgMET and especially the effort to improve soil moisture monitoring across Colorado!
August 20, 2025 at 2:13 PM
Greetings from the Colorado Water Congress summer conference in beautiful (but dry) Steamboat Springs. We’re discussing our work with CoAgMET and especially the effort to improve soil moisture monitoring across Colorado!
Finally, a pattern change on the way for western Colorado! Model forecasts of precipitable water (total water vapor in the atmosphere) at Grand Junction show more hot and dry this week, but then some real moisture next wk. Too early to say how much rain or drought relief, but a welcome sight.🤞 #cowx
August 18, 2025 at 1:43 PM
Finally, a pattern change on the way for western Colorado! Model forecasts of precipitable water (total water vapor in the atmosphere) at Grand Junction show more hot and dry this week, but then some real moisture next wk. Too early to say how much rain or drought relief, but a welcome sight.🤞 #cowx