BoulderWeather.com
open-menu closeme
Home
Neighborhoods
Weather
Zip Codes
Boulder County
About
Contact Us
Privacy Statement
rss

  • Boulder's First and Last Freeze Dates: Planning Your Growing Season

    calendar Aug 15, 2026 / Aug 15, 2026 · 7 min read · boulder colorado frost dates freeze probability growing season colorado gardening seasonal weather front range weather usda hardiness zone garden planning national weather service  ·
    Share on: twitter facebook linkedin copy

    Boulder's frost-free window ranges from 90 to nearly 200 days depending on the year — how to read NOAA's freeze probability data before you plant.


    Read More

Recent Posts

  • Boulder's First and Last Freeze Dates: Planning Your Growing Season
  • Monsoon Season in Boulder: When Afternoon Storms Turn Dangerous
  • Winter Bike Commuting in Boulder -- Chinooks, Ice Days, and Cold-Weather Gear
  • Summer Downhill MTB at Colorado Ski Resorts Near Boulder
  • Why Boulder Plows Bike Paths Before the Streets
  • Weather Alerts for Storms Coming Over the Foothills
  • The Boulder Commute Weather-Check Ritual
  • Best Season to Bike Boulder -- Month-by-Month Conditions

Categories

BOULDER WEATHER 26 BOULDER NEIGHBORHOODS 24 BOULDER COUNTY 13 BOULDER ZIP CODES 5 CYCLING 5 SUMMER WEATHER 3 BOULDER FIRES 2 SEASONAL WEATHER 2 AIR QUALITY 1 BOULDER FLOODS 1 COLORADO WEATHER 1 COMMUTING 1 FIRE WEATHER 1 HIKING WEATHER 1
All Categories
AIR QUALITY1 BOULDER COUNTY13 BOULDER FIRES2 BOULDER FLOODS1 BOULDER NEIGHBORHOODS24 BOULDER WEATHER26 BOULDER ZIP CODES5 COLORADO WEATHER1 COMMUTING1 CYCLING5 FIRE WEATHER1 HIKING WEATHER1 SEASONAL WEATHER2 SEVERE WEATHER1 SUMMER WEATHER3 SUN SAFETY1
[A~Z][0~9]

Series

BOULDER NEIGHBORHOODS 24 BOULDER COUNTY 13 BOULDER WEATHER 6 BOULDER ZIP CODES 5 CYCLING 5 SUMMER WEATHER 3 BOULDER FIRES 2 SEASONAL WEATHER 2 AIR QUALITY 1 BOULDER FLOODS 1 COLORADO WEATHER 1 COMMUTING 1 FIRE WEATHER 1 HIKING WEATHER 1
All Series
AIR QUALITY1 BOULDER COUNTY13 BOULDER FIRES2 BOULDER FLOODS1 BOULDER NEIGHBORHOODS24 BOULDER WEATHER6 BOULDER ZIP CODES5 COLORADO WEATHER1 COMMUTING1 CYCLING5 FIRE WEATHER1 HIKING WEATHER1 SEASONAL WEATHER2 SEVERE WEATHER1 SUMMER WEATHER3 SUN SAFETY1
[A~Z][0~9]

Tags

COLORADO WEATHER 46 BOULDER 32 BOULDER COLORADO 21 BOULDER COUNTY 16 FRONT RANGE WEATHER 15 ZIP CODE 6 COLORADO CLIMATE 5 CYCLING 5 OUTDOOR RECREATION 5 SUMMER WEATHER 5 BIKE COMMUTING 4 AFTERNOON STORMS 3 CHINOOK WINDS 3 LIGHTNING SAFETY 3
All Tags
803011 803021 803031 803041 803051 AFTERNOON STORMS3 AFTERNOON THUNDERSTORMS1 AIR QUALITY1 ALERTS1 ALLENSPARK1 ALTITUDE1 ARAPAHOE RIDGE1 BASELINE1 BATTERY RANGE1 BEAR CREEK1 BIKE COMMUTING4 BOULDER32 BOULDER COLORADO21 BOULDER COUNTY16 BOULDER CREEK2 BOULDER FLOOD 20131 BOULDER OPEN SPACE1 BOULDER RETAIL1 BOULDER WEATHER1 CHAUTAUQUA2 CHINOOK WINDS3 CLIMATE1 CLIMATE NORMALS1 COLD WEATHER1 COLD WEATHER GEAR1 COLORADO2 COLORADO CLIMATE5 COLORADO FIRES1 COLORADO GARDENING1 COLORADO SKI RESORTS1 COLORADO WEATHER46 COMMUNITY IMPACT1 COMMUTING1 CYCLING5 DAKOTA RIDGE1 DENVER COLORADO1 DOWNHILL MTB1 DOWNSLOPE WIND1 DOWNTOWN BOULDER1 E-BIKES1 EAST BOULDER1 ELDORA1 ELECTRIC BIKES1 ELEVATION1 ENVIRONMENTAL RECOVERY1 ERIE1 FIRE HISTORY1 FIRE RESTRICTIONS1 FIRE SAFETY1 FIRE WEATHER1 FLASH FLOODING1 FLATIRONS1 FLOOD HISTORY1 FOOTHILLS WEATHER2 FORECASTS2 FOUR MILE CREEK1 FRASIER MEADOWS1 FREEZE PROBABILITY1 FRONT RANGE1 FRONT RANGE WEATHER15 FROST DATES1 GARDEN PLANNING1 GLENWOOD GROVE1 GROWING SEASON1 GUNBARREL1 HAIL2 HIKING1 HYGIENE1 IRIS HOLLOW1 JAMESTOWN1 JAMESTOWN COLORADO1 JULY 4TH1 KALMIA1 KEEWAYDIN MEADOWS1 LAFAYETTE1 LIGHTNING SAFETY3 LOCAL WEATHER1 LONGMONT1 LONGMONT COLORADO1 LOUISVILLE1 LYONS1 LYONS COLORADO1 MAPLETON HILL1 MARSHALL FIRE1 MARTIN ACRES1 MONSOON SEASON1 MONTHLY WEATHER1 MOUNTAIN BIKING1 MOUNTAIN WEATHER1 MOUNTAINS1 MULTI-USE PATHS1 NATIONAL WEATHER SERVICE3 NATURAL DISASTER2 NCAR1 NEDERLAND1 NEWLANDS1 NIWOT1 NOAA1 NORTH BOULDER1 OUTDOOR PLANNING1 OUTDOOR RECREATION5 OUTDOOR SAFETY1 OUTDOOR SHOPPING1 PUBLIC HEALTH2 RADAR1 RED FLAG WARNING1 SAFETY1 SEASONAL GUIDE1 SEASONAL WEATHER3 SEVERE THUNDERSTORM WARNING1 SEVERE WEATHER3 SHANAHAN RIDGE1 SKIING1 SNOW REMOVAL1 SNOWMELT1 SOUTH BOULDER1 STORM SAFETY1 SUMMER WEATHER5 SUN SAFETY1 SUPERIOR1 TABLE MESA1 TEMPERATURE1 THUNDERSTORMS1 TRANSPORTATION POLICY1 TUBE TO WORK DAY1 TWENTY NINTH STREET1 UNIVERSITY HILL1 USDA HARDINESS ZONE1 UV INDEX1 WARD1 WATER RECREATION1 WEATHER2 WEATHER ALERTS2 WEATHER COMPARISON1 WEATHER FORECAST1 WEATHER PLANNING1 WEATHER RADAR1 WEBCAMS1 WELCOME1 WELD COUNTY1 WHITTIER1 WILDFIRE2 WILDFIRE SMOKE1 WINTER CYCLING3 WINTER WEATHER1 WONDERLAND HILLS1 ZIP CODE6
[A~Z][0~9]
Boulderweather.com

Copyright  BOULDERWEATHER.COM. All Rights Reserved

to-top