August weather forecastNew Castle, CO
August
Weather in August
The last month of the summer, August, is another warm month in New Castle, Colorado, with an average temperature fluctuating between 49.6°F (9.8°C) and 78.4°F (25.8°C).Temperature
The arrival of August coincides with an average high-temperature of a still moderately hot 78.4°F (25.8°C), indicating a minimal shift from July's 80.2°F (26.8°C). During the nights in August, New Castle records a pronounced shift from the daytime warmth, with a consistent average temperature of 49.6°F (9.8°C).Humidity
In August, the average relative humidity is 47%.Rainfall
In New Castle, in August, during 8.8 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In New Castle, during the entire year, the rain falls for 107.7 days and collects up to 11.89" (302mm) of precipitation.Snowfall
June through September are months without snowfall in New Castle, Colorado.Daylight
The average length of the day in August is 13h and 40min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:42 pm MDT.
Sunshine
The months with the most sunshine are June through August, with an average of 11.9h of sunshine.UV index
The months with the highest UV index in New Castle are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
New Castle, CO
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in August: 49.6°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in August
New Castle, CO
- Average pressure in August: 30.04"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).
Average wind speed in August
New Castle, CO
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.1mph).
Average humidity in August
New Castle, CO
- Average humidity in August: 47%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is June (43%).
Average rainfall in August
New Castle, CO
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is April (1.57").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in August
New Castle, CO
- Average rainfall days in August: 8.8 days
The month with the highest number of rainy days is April (14 days).
The month with the least rainy days is June (5.9 days).
Average snowfall in August
New Castle, CO
- Average snowfall in August: 0"
The month with the highest snowfall is February (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
New Castle, CO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
New Castle, CO
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 54min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in August
New Castle, CO
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is June (20.7 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in August
New Castle, CO
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
New Castle, CO
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in August
New Castle, CO
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
