TODAY SEP20
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 8151Thu
  • 7751Fri
  • 8353Sat
  • 8655Sun
  • 7748Mon
daynightWeather update from Broomfield / Jeffco at
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Welby Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January21°F45°F31°F1.8"
February22°F46°F32°F2.0"
March30°F58°F42°F2.1"
April35°F63°F47°F4.0"
May44°F70°F55°F5.2"
June54°F84°F68°F4.6"
July60°F89°F73°F5.7"
August59°F87°F71°F4.5"
September51°F79°F63°F5.7"
October39°F67°F51°F4.1"
November29°F56°F41°F2.2"
December19°F44°F30°F2.9"

Did you know?

  • The highest monthly average temperature in Welby for July is 73 degrees.
  • The lowest monthly average temperature in Welby for December is 30 degrees.
  • The most monthly precipitation in Welby occurs in September with 5.7 inches.
  • The air quality index in Welby is 8% worse than the national average.
  • The pollution index in Welby is 99% better than the national average.

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Compare Welby, CO Weather To Other Cities

Welby air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexWelbyColoradoNational
Air quality index543850
Pollution index24,0402,034,6195,066,862

Welby air quality information

MeasurementTotal
Days measured365
Days with good air quality153
Days with moderate air quality189
Days w/ poor A.Q. for sensitive groups23
Days with unhealthy air quality

Welby air quality information

PollutantTotal
Arsenic0.000%
Benzene0.000%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Welby temperature with heat index

Welby monthly precipitation with daily maximum

Welby monthly snow depth with daily maximum

Welby monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Paragon Estates, CO8924216%
Superior, CO12,9284216%
Erie, CO20,8014216%
Leyner, CO274216%
Valmont, CO554216%
Welby, CO16,771548%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mount Vernon, OH16,7773628%
Douglas, AZ16,7644412%
Fayetteville, GA16,780524%
Lemay, MO16,7626020%
Laurel, VA16,7563922%
Welby, CO16,771548%
Source: The Welby, CO weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.