Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August commences with an average high-temperature of a still hot 89.8°F (32.1°C), showing little deviation from July's 91°F (32.8°C). Nampa registers a marked temperature plunge to a refreshing 63.3°F (17.4°C) during the cool August nights.Humidity
The months with the lowest humidity in Nampa are July and August, with an average relative humidity of 29%.Rainfall
The months with the least rainfall in Nampa are July and August Rain falls for 3.1 days and accumulates 0.12" (3mm) of rain.Snowfall
May through October are months without snowfall in Nampa.Daylight
In August, the average length of the day in Nampa is 13h and 55min.On the first day of the month, sunrise is at 6:36 am and sunset at 9:08 pm. On the last day of August, in Nampa, sunrise is at 7:09 am and sunset at 8:22 pm MDT.
Sunshine
In Nampa, Idaho, the average sunshine in August is 11.3h.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Nampa in August?
What is the least humid month in Nampa?
What is the average humidity in August in Nampa?
What is the driest month in Nampa?
How many days does it rain in August in Nampa?
When it does not snow in Nampa?
What is the average length of the day in August in Nampa?
When is the sunrise / sunset in August in Nampa?
How many hours of sunshine does Nampa have in August?
How high is the UV index in August in Nampa?
Average temperature in August
Nampa, ID
- Average high temperature in August: 89.8°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in August
Nampa, ID
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Nampa, ID
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).
Average humidity in August
Nampa, ID
- Average humidity in August: 29%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (29%).
Average rainfall in August
Nampa, ID
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in August
Nampa, ID
- Average rainfall days in August: 3.1 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (3.1 days).
Average snowfall in August
Nampa, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Nampa, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Nampa, ID
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in August
Nampa, ID
- Average sunshine days in August: 25.2 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (14 days).
Average UV index in August
Nampa, ID
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Nampa, ID
- Average cloud cover in August: 9
The months with the most cloud cover are January and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in August
Nampa, ID
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Nampa, Idaho, USA
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