New Castle, CO Weather - Forecast & Monthly Averages

TEMPERATURE	39
HUMIDITY	99
PRESSURE
WIND COND.	5.4

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Weather Quick Facts

The highest monthly average temperature in New Castle for July is 73.6 degrees
The lowest monthly average temperature in New Castle for January is 22.5 degrees
The most monthly precipitation in New Castle occurs in September with 1.4 inches
The air quality index in New Castle is 5% worse than the national average
The pollution index in New Castle is 319% worse than the national average

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New Castle Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	12°F	36°F	23°F	0.7"
February	19°F	44°F	30°F	0.6"
March	27°F	57°F	41°F	0.6"
April	33°F	64°F	47°F	1.0"
May	40°F	74°F	57°F	1.2"
June	49°F	89°F	69°F	0.4"
July	56°F	92°F	74°F	1.2"
August	54°F	89°F	71°F	1.1"
September	46°F	81°F	62°F	1.4"
October	35°F	66°F	49°F	1.3"
November	24°F	53°F	36°F	0.6"
December	14°F	37°F	25°F	0.8"

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New Castle 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.
Index	New Castle	Colorado	National
Air quality index	44	38	42
Pollution index	11,410,200	2,068,342	2,726,193

New Castle air quality information

Measurement	Total
Days measured	364
Days with good air quality	289
Days with moderate air quality	75
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

New Castle air quality information

Pollutant	Total
Arsenic	0.050%
Benzene	0.080%
Carbon Tetrachloride	0.020%
Lead	0.380%
Mercury	0.590%

Average monthly New Castle temperature with heat index

New Castle monthly precipitation with daily maximum

New Castle monthly snow depth with daily maximum

New Castle monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Glenwood Springs, CO	10,048	44	12.0%
No Name, CO	267	44	12.0%
Rifle, CO	9,771	44	12.0%
Chacra, CO	357	44	12.0%
Silt, CO	3,076	44	12.0%
New Castle, CO	4,877	44	12.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Mayfair, CA	4,878	60	20.0%
Mayville, WI	4,875	40	20.0%
Michigan Center, MI	4,879	39	22.0%
Chisholm, MN	4,879	35	30.0%
Mendham, NJ	4,880	34	32.0%
New Castle, CO	4,877	44	12.0%

Source: The New Castle, 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.