August weather forecastGrover, WY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Grover, Wyoming, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 74.8°F (23.8°C).Temperature
Grover's transition from July to August introduces an average high-temperature of a still moderately hot 74.8°F (23.8°C), marking an insignificant variation from the 75.9°F (24.4°C). A pronounced dip becomes evident during the nights in August as Grover logs a consistent average temperature of 45.3°F (7.4°C).Humidity
The least humid month in Grover is August, with an average relative humidity of 45%.Rainfall
The months with the least rainfall in Grover are July and August Rain falls for 8.4 days and accumulates 0.63" (16mm) of rain.Snowfall
In Grover, Wyoming, snow does not fall in July and August.Daylight
In Grover, the average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 6:16 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:59 pm MDT.
Sunshine
In August, the average sunshine in Grover, Wyoming, is 11.8h.UV index
In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, the maximum UV index of 4 suggests this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grover, WY
- Average high temperature in August: 74.8°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is December (24.1°F).
- Average low temperature in August: 45.3°F
The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in August
Grover, WY
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Grover, WY
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in August
Grover, WY
- Average humidity in August: 45%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall in August
Grover, WY
- Average rainfall in August: 0.63"
The wettest month (with the highest rainfall) is February (2.72").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in August
Grover, WY
- Average rainfall days in August: 8.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in August
Grover, WY
- Average snowfall in August: 0"
The month with the highest snowfall is February (19.96").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Grover, WY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Grover, WY
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 11h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Grover, WY
- Average sunshine days in August: 17.7 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is April (7 days).
Average UV index in August
Grover, WY
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in August
Grover, WY
- Average cloud cover in August: 12
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in August
Grover, WY
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).





