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Four Square Mile, Colorado Weather

Paintbrush crowns the ridges. Day 88 of spring. Read this microseason across nine climate regions →

Four Square Mile weather forecast — hour by hour, 7-day outlook, NOAA radar

Four Square Mile, CO
Monday, June 15 at 7:10 AM
54
°
Clear
Feels like
50°
Humidity
59%
Wind
4 mph
Sunrise
11:31 PM
Sunset
2:28 PM
Four Square Mile, CO
Hour by hour · 24h
24-Hour ForecastFour Square Mile, CO: 24-hour forecast. Temperatures range from 51 to 81 degrees Fahrenheit.
L 51°H 81°
Four Square Mile, CO
7-day forecast
  1. Today
    Jun 15
    Partly Cloudy
    —
    —
    81°50°—
  2. Tuesday
    Jun 16
    Overcast
    —
    —
    90°51°+9°
  3. Wednesday
    Jun 17
    Overcast
    —
    —
    98°68°+8°
  4. Thursday
    Jun 18
    Clear
    —
    —
    86°59°-12°
  5. Friday
    Jun 19
    Overcast
    —
    —
    95°63°+9°
  6. Saturday
    Jun 20
    Partly Cloudy
    40%
    —
    94°71°-1°
  7. Sunday
    Jun 21
    Light Drizzle
    50%
    0.02″
    87°61°-7°
Four Square Mile, CO
Next 24 hours · Cool now
HOT 90°45°68°90°6a12p6p12anow 54°high 81°low 51°
Four Square Mile, CO
Anemometer · 24h winds · from true
NESW
From · True
S
180° · veering 54°
Direction
S
180°
Sustained
4
mph
Gust
5
mph
Peak 24h
22
avg 8
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 · pk 22 @ 8:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 166SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Four Square Mile, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
836.0
-0.1 mb in 3h · steady · 24.69 inHg
Now
836.0
mb
3h
-0.1
mb
12h
-5.5
mb
24h
-6.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 835–843
830835840845850-21h-18h-15h-12h-9h-6h-3h-24hNOW842.8834.5836.0
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Four Square Mile, CO
Air quality
52
AQI
Moderate
↑+6 in 6h

AQI 52 (Moderate), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 21.7 µg/m³ (AQI 74) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
21.7μg/m³
PM 10Good
23μg/m³
NO₂Good
13μg/m³
OzoneGood
39μg/m³
UV IndexLow
0.5

What's driving it

PM × Wind × Precip

PM2.5 at 21.7 µg/m³ (AQI 74) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.96
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100MONTUEWEDTHUFRISATSUNMON7-DAY PM2.5 TREND · μg/m³300
Four Square Mile, CO
Sky cover · visibility · 24h
Cloud cover
2%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
59.5mi
UNLIMITED
111 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
13:10 UTC · Four Square Mile, CO · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
13:10 UTC · Four Square Mile, CO · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Four Square Mile, CO
Satellite · infrared · animated
Four Square Mile, CO
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Four Square Mile, CO
Almanac · Monday, June 15
A summer fog for fair, a winter fog for rain.
Civil dawn
4:59 AM
Sunrise
11:31 PM
Daylight
14h 57m
Sunset
2:28 PM
Civil dusk
9:02 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Four Square Mile, CO
The moon
New Moon
0% illuminated
Moonrise
5:37 AM
Moonset
8:48 PM
In sign
♋︎ Cancer
Four Square Mile, CO
Microseason
Jun 11–15

Paintbrush crowns the ridges

insect
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Four Square Mile at a glance

  • Today vs. normal: 21°F below the seasonal normal for this latitude
  • Last frost: April 14 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Four Square Mile

  1. Mon81°50°4%
  2. Tue90°51°3%
  3. Wed98°68°0%
  4. Thu86°59°1%
  5. Fri95°63°7%
  6. Sat94°71°40%
  7. Sun87°61°50%
  8. Mon88°60°43%
  9. Tue85°63°26%
  10. Wed96°64°17%
  11. Thu99°71°16%
  12. Fri90°70°31%
  13. Sat84°62°32%
  14. Sun78°59°49%
  15. Mon89°63°48%
  16. Tue97°67°32%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Warm-season window is open

As of June 15, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

SPC Convective Outlook

Storm Prediction Center — Four Square Mile

SPC has placed Four Square Mile in the General Thunderstorms category for severe thunderstorms today.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • DAY 3NONENo severe risk

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: Deep freeze grips the high peaks.January 6–10: Ice thickens on alpine tarns.January 11–15: Springs stir beneath locked earth.January 16–20: Grouse call from the transition zone.January 21–25: First signals of the soil's turning.January 26–31: Stream water crystallizes thick.February 1–5: The year's coldest fortnight begins.February 6–10: East wind carries a subtle promise.February 11–15: Snowmelt springs whisper beneath ice.February 16–20: Red-wing calls rise from the wetlands.February 21–25: Rain begins to trace the snowline upward.February 26–28: Mist gathers in the warming canyons.March 1–5: Grass and trees stir from their sleep.March 6–10: Hibernators break through frozen ground.March 11–15: First blooms open to the spring sun.March 16–20: Mountain bluebirds return to the summits.March 21–25: Spring equinox at the divide.March 26–31: Aspen catkins burst in clusters.April 1–5: Thunderstorms rumble over granite peaks.April 6–10: Swallows and swifts slice the warming sky.April 11–15: Sandhill cranes call through the wetlands.April 16–20: Rainbows arch over the snowfields.April 21–25: New growth explodes across the montane.April 26–30: Last frost yields to summer growth.May 1–5: Wildflowers crest the high meadows.May 6–10: Summer monsoon clouds gather southward.May 11–15: Snowmelt crests toward the divide.May 16–20: High country wildflowers peak.May 21–25: Summer heat accelerates the growing season.May 26–31: Summer settles into the high country.June 1–5: Pikas hayfeeding in granite peaks.June 6–10: Glacier lily carpets the snowmelt.June 11–15: Paintbrush crowns the ridges.June 16–20: Thunderheads build by noon.June 21–25: Long light holds the peaks.June 26–30: Monsoon moisture drifts north.July 1–5: Monsoon storms drench the south.July 6–10: Wind builds through canyons.July 11–15: Lightning crowns every peak.July 16–20: Elk herds claim alpine meadows.July 21–25: Pika caches reach their peak.July 26–31: Monsoon pulses weaken northward.August 1–5: Summer heat breaks with monsoon.August 6–10: First frost creeps to peaks.August 11–15: Cool wind returns from north.August 16–20: Monsoon clouds gather over the peaks.August 21–25: The monsoon breaks into scattered showers.August 26–31: Summer insects thin as autumn wind rises.September 1–5: Elk descend from summer high meadows.September 6–10: Dew crystallizes on high grass at dawn.September 11–15: Hawks begin the long crossing southward.September 16–20: Equinox: darkness claims the high passes.September 21–25: Thunder retreats as the monsoon dies.September 26–30: First frost hardens the high valleys.October 1–5: October: the aspen stands reach their peak.October 6–10: Aspen gold slides downslope with the chill.October 11–15: Snow settles on the high passes.October 16–20: Elk bugling fades as rut nears its end.October 21–25: First hard frost grips the basin.October 26–31: Late rains settle into November patterns.November 1–5: Aspen canopy falls to earth.November 6–10: Granite bones emerge from cover.November 11–15: Earth begins to harden.November 16–20: Bare ranges hold silence.November 21–25: Snow returns to the peaks.November 26–30: North wind strips the landscape.December 1–5: Deep darkness settles over the ranges.December 6–10: Winter locks the high country.December 11–15: Elk withdraw to winter range.December 16–20: Ice thickens across frozen water.December 21–25: Winter solstice — the sun returns.December 26–31: The year closes in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · June 11–15

Paintbrush crowns the ridges

Alpine wildflower wave accelerates; paintbrush and columbine peak in high meadows as daylight reaches its maximum.

Day 166 of 365 · Wedge 33 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

The year in Four Square Mile tops out in July (~72°F) and dips lowest in December (~25°F), with May wettest at 3.3 inches and January driest at 0.9 inches.

MonthMean tempPrecipRainy days
January25°0.9″10
February28°1.1″11
March33°1.9″15
April44°2.6″18
May55°3.3″21
June66°2.1″20
July72°2.2″23
August70°1.8″23
September63°1.4″15
October48°1.4″11
November33°1.4″12
December25°0.9″10

Regional context

Per NOAA NCEI 1991-2020 normals, Four Square Mile runs from a 25°F January mean to 72°F in July, a 46°F seasonal spread, with near 21 inches of precipitation across about 191 wet days.

Summer convection drives Four Square Mile's precipitation: May logs 3.3 inches on 21.2 rainy days, against January's 0.9 inches on 10.4 — warm-season storms carry Four Square Mile's moisture. That summer-storm rhythm groups Four Square Mile with places like Holly Hills, CO, Glendale, CO and Cherry Hills Village, CO.

Four Square Mile reaches its last hard frost near mid-April; that is the cue for kale, peas, spinach, and parsnips. Heat-demanding starts go out a fortnight on in Four Square Mile, after the soil warms and cold snaps clear. Frost returns to Four Square Mile near mid-November, ending the tender-crop season. Four Square Mile's low ground holds frost later into spring than Four Square Mile's benches, which run 3-5 days ahead.

Similar climates: Holly Hills, CO, Glendale, CO, Cherry Hills Village, CO, Greenwood Village, CO, Cherry Creek, CO.

Frequently asked

When does it freeze in Four Square Mile?
Frost typically leaves Four Square Mile by mid-April and returns to Four Square Mile near mid-November.
What is the rainy season in Four Square Mile?
May is the wettest month in Four Square Mile, about 3.3 inches on average; the year totals roughly 21 inches.
What is the warmest month in Four Square Mile?
The warmest stretch in Four Square Mile comes in July, around 72°F on average.
What is the coldest month in Four Square Mile?
On average December is the chilliest month in Four Square Mile, about 25°F.
When can I start a vegetable garden in Four Square Mile?
Time tomatoes in Four Square Mile for two weeks after mid-April; peas and greens start at Four Square Mile's frost line.
How many rainy days does Four Square Mile get?
Expect roughly 191 wet days a year in Four Square Mile.
What hardiness zone is Four Square Mile?
Four Square Mile's USDA zone comes from its December mean (25°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Four Square Mile?
Four Square Mile's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Four Square Mile?
See this week's day-by-day rain chances for Four Square Mile in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Four Square Mile?
Current conditions for Four Square Mile and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Four Square Mile forecast updated?
The Four Square Mile forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Four Square Mile?
Day length in Four Square Mile peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Four Square Mile?
The next few days in Four Square Mile's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Four Square Mile's hot desert climate in Colorado pairs 25°F Januarys with 72°F Julys, 47°F apart across the seasons.

Yearly precipitation in Four Square Mile totals around 21 inches, spread over about 191 days of rain or snow.

The 47°F gap between Four Square Mile's summer and winter, at 39.7°N, shapes Four Square Mile's frost calendar.

All cities in Colorado →

Denver, CO weather →

ZIP codes in Four Square Mile

  • 80231
  • 80247

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.