❄️ Weather-Based School Closure Prediction

Snow Day Calculator Colorado Springs — Will Schools Close Tomorrow?

🏛️ National Weather Service Data (USA)
🌍 Open-Meteo Forecast (Canada)
📍 Location-Based Prediction

Snow Day Calculator Colorado Springs

Enter your ZIP or Postal Code to check your snow day chance. Get a Snow Day Index score based on real weather data — specific to your region's closure patterns.

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Snow Day Index
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Calculating...

🍊 Confidence: --

Score reflects weather conditions vs your region's baseline closure threshold.
Not a statistical probability — see methodology.

Tomorrow's School Status Estimate

Based on Snow Day Index — not calibrated probability yet

Full Closure
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2-Hr Delay
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School Open
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⚠️ These splits are model estimates only. Closure vs. delay decisions depend on district policy, superintendent judgment, and conditions not fully captured by forecast data.

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Expected Snow
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Morning Feel
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Wind Speed
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Snow Timing
Why This Score

Each factor is scored independently — no double-counting

5-Day Snow Day Outlook

Index scores for the next 5 days · Accuracy decreases beyond 24hrs

Day Snow Index Signal

⚠️ Days 3–5 carry low forecast confidence. Use as early signal only — recheck daily as storm approaches.

Prediction History

How this prediction has changed as the forecast updates

Check back later — score history builds as you refresh predictions for this location.
Hourly Snowfall Forecast
Snow (in/hr)
Morning window (4–8 AM)
What If Scenarios

All scenarios calculated at once — see how each condition changes the score

↑↓ arrow keys · Enter to select · Esc to close
  • Tonight / Tomorrow
  • Day After Tomorrow
  • In 3 Days

ℹ️ Rural districts close at lower snow totals (longer bus routes). Private schools may set different thresholds. These are small adjustments — weather conditions drive the score.

Enter custom weather conditions to see how they affect the Snow Day Index score

❄️ Expected Snowfall 4 inches
🌡️ Morning Temperature (°F) 28°F
💨 Wind Speed (mph) 10 mph
🧊 Ice Accumulation 0 inches
⏰ Storm peaks during 4 AM – 8 AM window
⚠️ Blizzard / Winter Storm Warning active
🌧️ Freezing rain expected
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Adjust the sliders above

🗺️ Live Weather Maps

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How the Snow Day Index Works

The score is not a statistical probability — it's a structured index built from weather conditions compared against your region's baseline closure thresholds. Each variable measures something independent. We designed the algorithm to avoid double-counting the same conditions twice.

🌨️ Snowfall vs Regional Threshold (0–40 pts)

The biggest factor. Snowfall is scored against your region's typical closure threshold — not a flat national scale. 4 inches in Atlanta scores higher than 4 inches in Buffalo because Atlanta's threshold is lower. The region is built into this variable, not applied as a separate multiplier afterward.

⏰ Storm Timing (0–25 pts)

Measures only when the storm falls, not how much. A small storm peaking at 4 AM scores higher timing than a large storm at noon. This is completely independent from snowfall amount.

🧊 Ice / Freezing Rain (0–20 pts)

Scored separately from snowfall because ice is a different hazard. Even 0.1 inches of freezing rain is more dangerous than 6 inches of snow. This variable only activates if freezing rain is detected — it cannot overlap with V1.

🌡️ Extreme Cold / Wind Chill (0–15 pts)

Cold-day closures are a completely separate mechanism. Wind chill below -10°F can close schools with zero snow. This variable is not correlated with snowfall — it only contributes in genuinely extreme cold conditions.

⚠️ NWS Alert — Floor, Not Bonus

This is the most important design decision. NWS alerts are issued because of the same storm already measured in V1–V3. Adding alert points on top would count the same storm twice. Instead, alerts set a minimum floor — if the weather score is already higher, the alert adds nothing.

📊 Future Calibration

We collect actual school closure outcomes via the feedback button. Once we have enough data, we can compare score buckets to real closure rates — converting the index into a genuinely calibrated estimate. The methodology section will show this data publicly as we collect it.

Regional Closure Thresholds

Different regions have different infrastructure, plow capacity, and experience with snow. These thresholds are baseline estimates — not arbitrary coefficients — and will be updated as outcome feedback data accumulates.

Region Closure starts at Almost certain at
Deep South (AL, MS, GA, TX, LA)1"3"
Mid-South (NC, VA, TN, KY)2"5"
Pacific NW (WA, OR)2"5"
Mid-Atlantic (DC, MD, NJ, DE)3"7"
Mountain West (CO, UT, WY, MT)5"10"
Northeast (NY, MA, CT, PA)4"9"
Midwest (OH, IN, IL, MO)4"9"
Upper Midwest (MN, WI, MI)6"12"
Great Lakes (Buffalo, Erie, Cleveland)7"14"
🍁 CANADA
British Columbia (Vancouver)3"7"
Ontario (Toronto, Ottawa)8"16"
Quebec (Montreal, Quebec City)9"18"
Prairie Provinces (Calgary, Edmonton, Winnipeg)10"20"
Maritime Provinces (Halifax, Fredericton)10"20"

Data Sources

🇺🇸
USA

National Weather Service

The same government source superintendents reference when making closure decisions. Free, authoritative, and updated every 1–3 hours.

NWS • Official US Source
🇨🇦
Canada

Open-Meteo (ECMWF)

A free and accurate international weather service using the ECMWF global forecast model. NWS only covers the United States.

Open-Meteo • ECMWF Global Model

⚠️ The Snow Day Index is a decision-support tool, not a guarantee. School closure is a human decision made by your local district administrator. Always check your district’s official notification system for the final word. Forecast accuracy decreases significantly beyond 24 hours.

Frequently Asked Questions

How accurate is this snow day calculator?
Our predictions are based on real weather forecast data and a weighted scoring model that considers snowfall amount, timing, temperature, precipitation type, and your region's closure patterns. For USA locations, we use National Weather Service (NWS) data. For Canadian locations, we use Open-Meteo (ECMWF model). Short-term forecasts (12–24 hours) are most reliable. Predictions 48–72 hours out carry higher uncertainty and should be treated as early signals only.
Does this work for Canadian postal codes?
Yes. Enter your postal code (e.g. M5V 3A8 or M5V3A8) and the calculator will fetch weather for your area using Open-Meteo's global forecast model and apply Canada-specific regional closure thresholds. Canadian provinces have much higher snow tolerance than most US regions — Toronto and Ottawa typically close only at 8"+ accumulations, while the Prairie provinces (Calgary, Winnipeg) close even less frequently for snow alone.
Why does the same snow amount mean different things in different states?
Infrastructure and experience vary dramatically. Buffalo, NY maintains large plow fleets and handles 6 inches routinely. Atlanta, GA has a fraction of that equipment — 2 inches can shut the city down. Our regional closure thresholds account for this difference. These are baseline estimates — they will be refined over time as actual outcome data is collected through the feedback system.
Can freezing rain cause a snow day without much snow?
Yes. Even 0.1–0.25 inches of ice is more dangerous than 6 inches of ,255,0.8)">Mountain West (CO, UT, WY, MT)5"10" Northeast (NY, MA, CT, PA)4"9" Midwest (OH, IN, IL, MO)4"9" Upper Midwest (MN, WI, MI)6"12" Great Lakes (Buffalo, Erie, Cleveland)7"14" 🍁 CANADA British Columbia (Vancouver)3"7" Ontario (Toronto, Ottawa)8"16" Quebec (Montreal, Quebec City)9"18" Prairie Provinces (Calgary, Edmonton, Winnipeg)10"20" Maritime Provinces (Halifax, Fredericton)10"20"

Data Sources

USA: Weather data comes from the National Weather Service (NWS) — the same government source superintendents reference when making closure decisions. Free, authoritative, updated every 1–3 hours. Canada: Weather data is provided by Open-Meteo (ECMWF global forecast model), a free and accurate international weather service. NWS only covers the United States.

⚠️ The Snow Day Index is a decision-support tool, not a guarantee. School closure is a human decision made by your local district administrator. Always check your district's official notification system for the final word. Forecast accuracy decreases significantly beyond 24 hours.

Frequently Asked Questions

How accurate is this snow day calculator?
Our predictions are based on real weather forecast data and a weighted scoring model that considers snowfall amount, timing, temperature, precipitation type, and your region's closure patterns. For USA locations, we use National Weather Service (NWS) data. For Canadian locations, we use Open-Meteo (ECMWF model). Short-term forecasts (12–24 hours) are most reliable. Predictions 48–72 hours out carry higher uncertainty and should be treated as early signals only.
Does this work for Canadian postal codes?
Yes. Enter your postal code (e.g. M5V 3A8 or M5V3A8) and the calculator will fetch weather for your area using Open-Meteo's global forecast model and apply Canada-specific regional closure thresholds. Canadian provinces have much higher snow tolerance than most US regions — Toronto and Ottawa typically close only at 8"+ accumulations, while the Prairie provinces (Calgary, Winnipeg) close even less frequently for snow alone.
Why does the same snow amount mean different things in different states?
Infrastructure and experience vary dramatically. Buffalo, NY maintains large plow fleets and handles 6 inches routinely. Atlanta, GA has a fraction of that equipment — 2 inches can shut the city down. Our regional closure thresholds account for this difference. These are baseline estimates — they will be refined over time as actual outcome data is collected through the feedback system.
Can freezing rain cause a snow day without much snow?
Yes. Even 0.1–0.25 inches of ice is more dangerous than 6 inches of snow on roads. Ice cannot be plowed and road salt loses effectiveness below 15°F. Ice-related closures are common even with minimal snow accumulation.
When do schools usually announce closures?
Most school districts make the call between 4:30 AM and 6:00 AM on the morning of a potential closure. For large, clearly severe storms, some districts announce the evening before. Always check your district's official notification system for the final decision.
Does extreme cold alone cause school closures?
Yes. Wind chill below -15°F to -20°F is a standalone closure trigger in many northern districts. Students waiting at unsheltered bus stops face frostbite risk even with no snow at all.
What is the difference between a snow day and a 2-hour delay?
A 2-hour delay gives road crews extra time to clear routes before buses deploy. Districts choose this when conditions are expected to improve enough by mid-morning. A full closure means the district determined conditions will not be safe for the entire school day.
47"Average Annual Snowfall
6,035 ftCity Elevation
14,115 ftPikes Peak Elevation
6Major School Districts in El Paso County

How the Colorado Springs Snow Day Calculator Works

Colorado Springs sits at over 6,000 feet elevation at the base of Pikes Peak, making it one of the highest-elevation major cities in the United States. That altitude — combined with the city’s position on the Front Range — creates a winter weather environment that is unique even compared to Denver, just 70 miles to the north. Our Snow Day Calculator pulls real-time weather data for Colorado Springs CO and El Paso County, analyzing snowfall forecasts, temperature swings, elevation-driven variation, ice risk, and road conditions to estimate school closure probability for your ZIP code.

El Paso County has six major school districts, each making independent snow day decisions: Colorado Springs District 11, Academy District 20, Cheyenne Mountain District 12, Falcon District 49, Widefield District 3, and Harrison District 2. A single storm can produce very different conditions across these districts depending on their elevation and location. Enter your ZIP code for the most localized estimate — the official call always comes from your district.

Why Snow Days Are Different in Colorado Springs

Mountain Weather Influences Local Snow Conditions

Pikes Peak dominates the western skyline of Colorado Springs, and it dominates the city’s weather too. Upslope storms — where moisture-laden air from the east gets pushed up against the mountains and forced to rise — are the primary snow producers for Colorado Springs. These events can drop 12 to 20 inches of snow in 24 hours. What makes them challenging to forecast is their sensitivity to storm track: a slight shift north or south can mean the difference between a major snowstorm and a near-miss. Mountain-influenced weather systems can also move faster than models predict, making early forecasts unreliable.

Elevation Creates Variation

Colorado Springs spans elevations from under 5,800 feet in the east to over 7,500 feet in Broadmoor and the foothills. During a storm, higher neighborhoods can receive twice as much snow as lower-lying eastern areas like Falcon or Security-Widefield.

Upslope Storm Events

Upslope conditions are when the city sees its heaviest snowfalls. These storms arrive from the northeast, push moisture up the mountain slopes, and can produce rapid, intense accumulation that strains road clearing infrastructure.

Chinook Wind Effect

Warm, dry Chinook winds off the mountains can melt several inches of snow in hours. This can work against closure decisions — a major storm may be followed immediately by warming that clears roads quickly, making the closure window narrow.

Rapid Freeze-Thaw Cycles

Colorado Springs sees frequent temperature swings around the freezing point. Melted snow refreezes overnight as black ice on residential streets, creating hazardous morning conditions even days after a storm ends.

Snowfall Patterns Around Colorado Springs

Colorado Springs averages about 47 inches of snow per year. Like Denver, March is one of the snowiest months, and the snow season can extend from October through April. Snowfall distribution across the city is highly uneven: the Broadmoor area and neighborhoods against the foothills consistently receive more snow than the eastern plains communities of Falcon and Peyton. During major upslope events, Monument and Woodland Park to the north can see extreme totals while eastern El Paso County gets a fraction.

Temperature Swings Create Icy Roads

Colorado Springs temperatures swing dramatically between day and night and between storm and post-storm. A day that starts at 10°F with blowing snow can reach 40°F by afternoon as skies clear. The reverse is also common: a mild, wet snowfall in the 30s refreezes solid overnight, leaving morning roads glazed with ice even after precipitation has ended. Superintendents weigh overnight temperature forecasts heavily when deciding on closures for the following morning.

How Colorado Springs Schools Decide Snow Days

El Paso County’s six major school districts each make independent closure decisions. District superintendents monitor NWS forecasts, CDOT road reports, and their own transportation team’s field assessments through the night before a potential closure. Key factors: projected snowfall by neighborhood/elevation zone, overnight temperatures, road clearing status, and bus route safety. Most districts announce by 5:30–6:30 AM.

Colorado Springs District 11

The largest district in El Paso County, serving central and south Colorado Springs. D11 makes centralized closure decisions communicated via its website, KKTV, KRDO, KOAA, and automated parent alerts.

Academy District 20

Serves the Briargate and Northgate areas in northern Colorado Springs. D20 often sees more snow than southern parts of the city due to slightly higher elevation and storm track positioning, and sometimes closes when D11 remains open.

Cheyenne Mountain District 12 & Harrison District 2

Cheyenne Mountain serves the Broadmoor area at the highest elevations in the metro, often seeing the most snow of any district. Harrison District 2 covers southern Colorado Springs and may see different storm impacts than the northern districts.

Falcon District 49 & Widefield District 3

These east and southeast El Paso County districts sit at lower elevations and typically see less snowfall than the city. However, they cover large geographic areas with extensive rural bus routes, making road conditions the primary closure factor.

Weather Factors That Affect Colorado Springs School Closures

Weather FactorLow ImpactModerate ImpactHigh Impact
Snow AccumulationUnder 3"3–7"7"+ (closure likely)
Storm TimingAfternoon / eveningOvernight into morningOngoing at school start
Ice / Freezing RoadsTrace amountsPatchy black iceWidespread glazing
Elevation ZoneBelow 6,000 ft6,000–7,000 ftAbove 7,000 ft (foothills)
Wind & DriftingUnder 15 mph15–30 mph30+ mph (blowing snow)

Snow Day Calculator vs Weather Forecast

A weather forecast tells you expected snowfall and temperature. The Snow Day Calculator takes those inputs and translates them — factoring in elevation, storm timing, ice risk, and road conditions — into a school closure probability. In Colorado Springs, a 5-inch overnight storm at 20°F that ends before dawn carries a different probability than the same 5 inches arriving at 7 AM during morning drop-off. The calculator factors all of this in.

🏸 Know Your Elevation Zone

Broadmoor and foothills neighborhoods can get twice the snow of eastern Falcon during the same storm. Always use your specific ZIP code for the most accurate local prediction.

❄️ Watch for Upslope Alerts

NWS upslope snow advisories for the Pikes Peak region are the strongest indicator of heavy snowfall for Colorado Springs. Our calculator weights active NWS alerts prominently.

📍 Check by 5:30 AM

Most El Paso County districts announce closures before 6:30 AM. Run the calculator the night before a storm to track the probability trend as the forecast sharpens.

Colorado Springs Areas Covered by Snow Day Calculator

Our calculator covers Colorado Springs and the surrounding El Paso County area, including: Manitou Springs, Fountain, Monument, Falcon, Peyton, Security-Widefield, Woodland Park, and Castle Rock. Enter any El Paso County ZIP code for a localized snow day prediction.